PropertyGridEditorPart Class
Provides an editor control that enables end users to edit custom properties on an associated WebPart or server control. This class cannot be inherited.
System.Web.UI.Control
System.Web.UI.WebControls.WebControl
System.Web.UI.WebControls.Panel
System.Web.UI.WebControls.WebParts.Part
System.Web.UI.WebControls.WebParts.EditorPart
System.Web.UI.WebControls.WebParts.PropertyGridEditorPart
Assembly: System.Web (in System.Web.dll)
The PropertyGridEditorPart type exposes the following members.
| Name | Description | |
|---|---|---|
|
AccessKey | Gets or sets the access key that allows you to quickly navigate to the Web server control. (Inherited from WebControl.) |
|
Adapter | Gets the browser-specific adapter for the control. (Inherited from Control.) |
|
|
AppRelativeTemplateSourceDirectory | Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control.) |
|
|
Attributes | Gets the collection of arbitrary attributes (for rendering only) that do not correspond to properties on the control. (Inherited from WebControl.) |
|
|
BackColor | Gets or sets the background color of the Web server control. (Inherited from WebControl.) |
|
|
BackImageUrl | Gets or sets the URL of the background image for the panel control. (Inherited from Panel.) |
|
|
BindingContainer | Infrastructure. Gets the control that contains this control's data binding. (Inherited from Control.) |
|
|
BorderColor | Gets or sets the border color of the Web control. (Inherited from WebControl.) |
|
|
BorderStyle | Gets or sets the border style of the Web server control. (Inherited from WebControl.) |
|
|
BorderWidth | Gets or sets the border width of the Web server control. (Inherited from WebControl.) |
|
|
ChildControlsCreated | Gets a value that indicates whether the server control's child controls have been created. (Inherited from Control.) |
|
|
ChromeState | Gets or sets whether a part control is in a minimized or normal state. (Inherited from Part.) |
|
|
ChromeType | Gets or sets the type of border that frames a Web Parts control. (Inherited from Part.) |
|
|
ClientID | Gets the control ID for HTML markup that is generated by ASP.NET. (Inherited from Control.) |
|
|
ClientIDMode | Gets or sets the algorithm that is used to generate the value of the ClientID property. (Inherited from Control.) |
|
|
ClientIDSeparator | Gets a character value representing the separator character used in the ClientID property. (Inherited from Control.) |
|
|
Context | Gets the HttpContext object associated with the server control for the current Web request. (Inherited from Control.) |
|
|
Controls | Infrastructure. Gets a ControlCollection object that contains the child controls for a specified server control in the user interface hierarchy. (Inherited from Part.) |
|
|
ControlStyle | Gets the style of the Web server control. This property is used primarily by control developers. (Inherited from WebControl.) |
|
|
ControlStyleCreated | Gets a value indicating whether a Style object has been created for the ControlStyle property. This property is primarily used by control developers. (Inherited from WebControl.) |
|
|
CssClass | Gets or sets the Cascading Style Sheet (CSS) class rendered by the Web server control on the client. (Inherited from WebControl.) |
|
|
DataItemContainer | Gets a reference to the naming container if the naming container implements IDataItemContainer. (Inherited from Control.) |
|
|
DataKeysContainer | Gets a reference to the naming container if the naming container implements IDataKeysControl. (Inherited from Control.) |
|
|
DefaultButton | Overrides the base property inherited from the Panel control to hide the property from designers and prevent it from being affected by themes. (Overrides Panel.DefaultButton.) |
|
|
Description | Gets or sets a brief phrase that summarizes what the part control does, for use in ToolTips and catalogs of part controls. (Inherited from Part.) |
|
|
DesignMode | Gets a value indicating whether a control is being used on a design surface. (Inherited from Control.) |
|
|
Direction | Gets or sets the direction in which to display controls that include text in a Panel control. (Inherited from Panel.) |
|
|
Display | Gets a value that indicates whether a control should be displayed when its associated WebPart control is in edit mode. (Overrides EditorPart.Display.) |
|
|
DisplayTitle | Gets a string that contains the title text displayed in the title bar of an EditorPart control. (Inherited from EditorPart.) |
|
|
Enabled | Gets or sets a value indicating whether the Web server control is enabled. (Inherited from WebControl.) |
|
|
EnableTheming | Gets or sets a value indicating whether themes apply to this control. (Inherited from WebControl.) |
|
|
EnableViewState | Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client. (Inherited from Control.) |
|
|
Events | Gets a list of event handler delegates for the control. This property is read-only. (Inherited from Control.) |
|
|
Font | Gets the font properties associated with the Web server control. (Inherited from WebControl.) |
|
|
ForeColor | Gets or sets the foreground color (typically the color of the text) of the Web server control. (Inherited from WebControl.) |
|
|
GroupingText | Gets or sets the caption for the group of controls that is contained in the panel control. (Inherited from Panel.) |
|
|
HasAttributes | Gets a value indicating whether the control has attributes set. (Inherited from WebControl.) |
|
|
HasChildViewState | Gets a value indicating whether the current server control's child controls have any saved view-state settings. (Inherited from Control.) |
|
|
Height | Gets or sets the height of the Web server control. (Inherited from WebControl.) |
|
|
HorizontalAlign | Gets or sets the horizontal alignment of the contents within the panel. (Inherited from Panel.) |
|
|
ID | Gets or sets the programmatic identifier assigned to the server control. (Inherited from Control.) |
|
|
IdSeparator | Infrastructure. Gets the character used to separate control identifiers. (Inherited from Control.) |
|
|
IsChildControlStateCleared | Gets a value indicating whether controls contained within this control have control state. (Inherited from Control.) |
|
|
IsEnabled | Gets a value indicating whether the control is enabled. (Inherited from WebControl.) |
|
|
IsTrackingViewState | Gets a value that indicates whether the server control is saving changes to its view state. (Inherited from Control.) |
|
|
IsViewStateEnabled | Gets a value indicating whether view state is enabled for this control. (Inherited from Control.) |
|
|
LoadViewStateByID | Gets a value indicating whether the control participates in loading its view state by ID instead of index. (Inherited from Control.) |
|
|
NamingContainer | Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same Control.ID property value. (Inherited from Control.) |
|
|
Page | Gets a reference to the Page instance that contains the server control. (Inherited from Control.) |
|
|
Parent | Gets a reference to the server control's parent control in the page control hierarchy. (Inherited from Control.) |
|
|
RenderingCompatibility | Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control.) |
|
|
ScrollBars | Gets or sets the visibility and position of scroll bars in a Panel control. (Inherited from Panel.) |
|
|
Site | Gets information about the container that hosts the current control when rendered on a design surface. (Inherited from Control.) |
|
|
SkinID | Gets or sets the skin to apply to the control. (Inherited from WebControl.) |
|
|
Style | Gets a collection of text attributes that will be rendered as a style attribute on the outer tag of the Web server control. (Inherited from WebControl.) |
|
|
SupportsDisabledAttribute | Gets a value that indicates whether the control should set the disabled attribute of the rendered HTML element to "disabled" when the control's IsEnabled property is false. (Inherited from Panel.) |
|
|
TabIndex | Gets or sets the tab index of the Web server control. (Inherited from WebControl.) |
|
|
TagKey | Gets the HtmlTextWriterTag value that corresponds to this Web server control. This property is used primarily by control developers. (Inherited from WebControl.) |
|
|
TagName | Gets the name of the control tag. This property is used primarily by control developers. (Inherited from WebControl.) |
|
|
TemplateControl | Gets or sets a reference to the template that contains this control. (Inherited from Control.) |
|
|
TemplateSourceDirectory | Gets the virtual directory of the Page or UserControl that contains the current server control. (Inherited from Control.) |
|
|
Title | Gets or sets a title for the editor control. (Overrides Part.Title.) |
|
|
ToolTip | Gets or sets the text displayed when the mouse pointer hovers over the Web server control. (Inherited from WebControl.) |
|
|
UniqueID | Gets the unique, hierarchically qualified identifier for the server control. (Inherited from Control.) |
|
|
ViewState | Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page. (Inherited from Control.) |
|
|
ViewStateIgnoresCase | Gets a value that indicates whether the StateBag object is case-insensitive. (Inherited from Control.) |
|
|
ViewStateMode | Gets or sets the view-state mode of this control. (Inherited from Control.) |
|
|
Visible | Gets or sets a value that indicates whether a server control is rendered as UI on the page. (Inherited from Control.) |
|
|
WebPartManager | Gets a reference to the WebPartManager control associated with the current Web page. (Inherited from EditorPart.) |
|
|
WebPartToEdit | Gets a reference to the WebPart control that is currently being edited. (Inherited from EditorPart.) |
|
|
Width | Gets or sets the width of the Web server control. (Inherited from WebControl.) |
|
|
Wrap | Gets or sets a value indicating whether the content wraps within the panel. (Inherited from Panel.) |
|
|
Zone | Gets a reference to the EditorZoneBase zone that contains an EditorPart control. (Inherited from EditorPart.) |
| Name | Description | |
|---|---|---|
|
AddAttributesToRender | Adds information about the background image, alignment, wrap, and direction to the list of attributes to render. (Inherited from Panel.) |
|
|
AddedControl | Called after a child control is added to the Controls collection of the Control object. (Inherited from Control.) |
|
|
AddParsedSubObject | Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (Inherited from Control.) |
|
ApplyChanges | Saves the values from a PropertyGridEditorPart control to the corresponding properties in the associated WebPart control. (Overrides EditorPart.ApplyChanges().) |
|
|
ApplyStyle | Copies any nonblank elements of the specified style to the Web control, overwriting any existing style elements of the control. This method is primarily used by control developers. (Inherited from WebControl.) |
|
|
ApplyStyleSheetSkin | Applies the style properties defined in the page style sheet to the control. (Inherited from Control.) |
|
|
BuildProfileTree | Infrastructure. Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (Inherited from Control.) |
|
|
ClearCachedClientID | Infrastructure. Sets the cached ClientID value to null. (Inherited from Control.) |
|
|
ClearChildControlState | Deletes the control-state information for the server control's child controls. (Inherited from Control.) |
|
|
ClearChildState | Deletes the view-state and control-state information for all the server control's child controls. (Inherited from Control.) |
|
|
ClearChildViewState | Deletes the view-state information for all the server control's child controls. (Inherited from Control.) |
|
|
ClearEffectiveClientIDMode | Infrastructure. Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (Inherited from Control.) |
|
|
CopyBaseAttributes | Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from. This method is used primarily by control developers. (Inherited from WebControl.) |
|
|
CreateChildControls | Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering. (Inherited from Control.) |
|
|
CreateControlCollection | Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (Inherited from Control.) |
|
|
CreateControlStyle | Creates a style object that is used internally by the Panel control to implement all style related properties. (Inherited from Panel.) |
|
|
DataBind() | Binds a data source to the invoked server control and all its child controls. (Inherited from Part.) |
|
|
DataBind(Boolean) | Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event. (Inherited from Control.) |
|
|
DataBindChildren | Binds a data source to the server control's child controls. (Inherited from Control.) |
|
|
Dispose | Enables a server control to perform final clean up before it is released from memory. (Inherited from Control.) |
|
|
EnsureChildControls | Determines whether the server control contains child controls. If it does not, it creates child controls. (Inherited from Control.) |
|
|
EnsureID | Creates an identifier for controls that do not have an identifier assigned. (Inherited from Control.) |
|
|
Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
|
|
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
|
|
FindControl(String) | Searches the current naming container for a server control with the specified id parameter. (Inherited from Control.) |
|
|
FindControl(String, Int32) | Infrastructure. Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search. You should not override this version of the FindControl method. (Inherited from Control.) |
|
|
Focus | Sets input focus to a control. (Inherited from Control.) |
|
|
GetDesignModeState | Retrieves the current state of an EditorPart control's parent zone. (Inherited from EditorPart.) |
|
|
GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
|
|
GetRouteUrl(Object) | Gets the URL that corresponds to a set of route parameters. (Inherited from Control.) |
|
|
GetRouteUrl(RouteValueDictionary) | Gets the URL that corresponds to a set of route parameters. (Inherited from Control.) |
|
|
GetRouteUrl(String, Object) | Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.) |
|
|
GetRouteUrl(String, RouteValueDictionary) | Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.) |
|
|
GetType | Gets the Type of the current instance. (Inherited from Object.) |
|
|
GetUniqueIDRelativeTo | Returns the prefixed portion of the UniqueID property of the specified control. (Inherited from Control.) |
|
|
HasControls | Determines if the server control contains any child controls. (Inherited from Control.) |
|
|
HasEvents | Returns a value indicating whether events are registered for the control or any child controls. (Inherited from Control.) |
|
|
IsLiteralContent | Infrastructure. Determines if the server control holds only literal content. (Inherited from Control.) |
|
|
LoadControlState | Restores control-state information from a previous page request that was saved by the SaveControlState method. (Inherited from Control.) |
|
|
LoadViewState | Restores view-state information from a previous request that was saved with the SaveViewState method. (Inherited from WebControl.) |
|
|
MapPathSecure | Retrieves the physical path that a virtual path, either absolute or relative, maps to. (Inherited from Control.) |
|
|
MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
|
|
MergeStyle | Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. This method is used primarily by control developers. (Inherited from WebControl.) |
|
|
OnBubbleEvent | Determines whether the event for the server control is passed up the page's UI server control hierarchy. (Inherited from Control.) |
|
|
OnDataBinding | Raises the DataBinding event. (Inherited from Control.) |
|
|
OnInit | Raises the Init event. (Inherited from Control.) |
|
|
OnLoad | Raises the Load event. (Inherited from Control.) |
|
|
OnPreRender | Raises the PreRender event. (Inherited from EditorPart.) |
|
|
OnUnload | Raises the Unload event. (Inherited from Control.) |
|
|
OpenFile | Gets a Stream used to read a file. (Inherited from Control.) |
|
|
RaiseBubbleEvent | Assigns any sources of the event and its information to the control's parent. (Inherited from Control.) |
|
|
RemovedControl | Called after a child control is removed from the Controls collection of the Control object. (Inherited from Control.) |
|
|
Render | Renders the control to the specified HTML writer. (Inherited from WebControl.) |
|
|
RenderBeginTag | Renders the HTML opening tag of the Panel control to the specified writer. (Inherited from Panel.) |
|
|
RenderChildren | Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (Inherited from Control.) |
|
|
RenderContents | Renders the contents of the control to the specified writer. This method is used primarily by control developers. (Inherited from WebControl.) |
|
|
RenderControl(HtmlTextWriter) | Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled. (Inherited from Control.) |
|
|
RenderControl(HtmlTextWriter, ControlAdapter) | Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (Inherited from Control.) |
|
|
RenderEndTag | Renders the HTML closing tag of the Panel control into the specified writer. (Inherited from Panel.) |
|
|
ResolveAdapter | Gets the control adapter responsible for rendering the specified control. (Inherited from Control.) |
|
|
ResolveClientUrl | Gets a URL that can be used by the browser. (Inherited from Control.) |
|
|
ResolveUrl | Converts a URL into one that is usable on the requesting client. (Inherited from Control.) |
|
|
SaveControlState | Saves any server control state changes that have occurred since the time the page was posted back to the server. (Inherited from Control.) |
|
|
SaveViewState | Saves any state that was modified after the TrackViewState method was invoked. (Inherited from WebControl.) |
|
|
SetDesignModeState | Applies the characteristics of the design-mode state to the current EditorZoneBase zone that contains an EditorPart control. (Inherited from EditorPart.) |
|
|
SetRenderMethodDelegate | Infrastructure. Assigns an event handler delegate to render the server control and its content into its parent control. (Inherited from Control.) |
|
|
SyncChanges | Retrieves the values from a WebPart control, and updates the corresponding controls used to edit those property values within a PropertyGridEditorPart control. (Overrides EditorPart.SyncChanges().) |
|
|
ToString | Returns a string that represents the current object. (Inherited from Object.) |
|
|
TrackViewState | Causes the control to track changes to its view state so they can be stored in the object's ViewState property. (Inherited from WebControl.) |
| Name | Description | |
|---|---|---|
|
DataBinding | Occurs when the server control binds to a data source. (Inherited from Control.) |
|
|
Disposed | Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. (Inherited from Control.) |
|
|
Init | Occurs when the server control is initialized, which is the first step in its lifecycle. (Inherited from Control.) |
|
|
Load | Occurs when the server control is loaded into the Page object. (Inherited from Control.) |
|
|
PreRender | Occurs after the Control object is loaded but prior to rendering. (Inherited from Control.) |
|
|
Unload | Occurs when the server control is unloaded from memory. (Inherited from Control.) |
| Name | Description | |
|---|---|---|
|
FindDataSourceControl | Returns the data source that is associated with the data control for the specified control. (Defined by DynamicDataExtensions.) |
|
|
FindFieldTemplate | Returns the field template for the specified column in the specified control's naming container. (Defined by DynamicDataExtensions.) |
|
|
FindMetaTable | Returns the metatable object for the containing data control. (Defined by DynamicDataExtensions.) |
| Name | Description | |
|---|---|---|
|
IAttributeAccessor.GetAttribute | Infrastructure. Gets an attribute of the Web control with the specified name. (Inherited from WebControl.) |
|
|
IAttributeAccessor.SetAttribute | Sets an attribute of the Web control to the specified name and value. (Inherited from WebControl.) |
|
|
ICompositeControlDesignerAccessor.RecreateChildControls | Allows the developer of a designer for a composite part control to recreate the control's child controls on the design surface. (Inherited from Part.) |
|
IControlBuilderAccessor.ControlBuilder | For a description of this member, see IControlBuilderAccessor.ControlBuilder. (Inherited from Control.) |
|
|
IControlDesignerAccessor.GetDesignModeState | For a description of this member, see IControlDesignerAccessor.GetDesignModeState. (Inherited from Control.) |
|
|
IControlDesignerAccessor.SetDesignModeState | For a description of this member, see IControlDesignerAccessor.SetDesignModeState. (Inherited from Control.) |
|
|
IControlDesignerAccessor.SetOwnerControl | Infrastructure. For a description of this member, see IControlDesignerAccessor.SetOwnerControl. (Inherited from Control.) |
|
|
IControlDesignerAccessor.UserData | For a description of this member, see IControlDesignerAccessor.UserData. (Inherited from Control.) |
|
|
IDataBindingsAccessor.DataBindings | For a description of this member, see IDataBindingsAccessor.DataBindings. (Inherited from Control.) |
|
|
IDataBindingsAccessor.HasDataBindings | For a description of this member, see IDataBindingsAccessor.HasDataBindings. (Inherited from Control.) |
|
|
IExpressionsAccessor.Expressions | For a description of this member, see IExpressionsAccessor.Expressions. (Inherited from Control.) |
|
|
IExpressionsAccessor.HasExpressions | For a description of this member, see IExpressionsAccessor.HasExpressions. (Inherited from Control.) |
|
|
IParserAccessor.AddParsedSubObject | For a description of this member, see IParserAccessor.AddParsedSubObject. (Inherited from Control.) |
The PropertyGridEditorPart provides a generic user interface (UI) that enables users to edit custom properties on WebPart and server controls placed in WebPartZoneBase zones. In contrast, the other EditorPart controls, such as the AppearanceEditorPart and BehaviorEditorPart controls, edit only existing, UI-oriented properties from the WebPart class.
Just as there are tool-oriented zones in the Web Parts control set (for details, see the ToolZone class overview), there are tool-oriented part controls, and each of these must reside in a corresponding type of tool zone. These kind of controls in the Web Parts control set have two distinguishing characteristics:
-
They are helper controls that enable end users to personalize the controls that form the primary UI of a page in a Web Parts application.
-
They are visible only in certain page display modes.
The PropertyGridEditorPart control is a special control, and it becomes visible only when a Web page is in edit mode, and when a specific WebPart or server control has been selected by a user for editing. The PropertyGridEditorPart control, like all other EditorPart controls, must reside in an EditorZone zone on the page.
Important
|
|---|
|
An EditorZone zone can contain only EditorPart controls, and EditorPart controls cannot be placed in any other type of zone. |
The PropertyGridEditorPart control provides an editing UI for properties that are marked in the source code with the WebBrowsable attribute (from the WebBrowsableAttribute class). When a property is marked with this attribute, a PropertyGridEditorPart control creates the editing UI based on the type of the property, and uses a PropertyDescriptor object if needed to convert the value in each editing control to the type of the property. You can also add other attributes that help the PropertyGridEditorPart control to display the editing UI. The WebDisplayName attribute (from the WebDisplayNameAttribute class) allows you to specify the text for the label that appears with each control in the editing UI. The WebDescription attribute (from the WebDescriptionAttribute class) allows you to specify a string that appears as a ToolTip for each control in the editing UI.
The controls created to edit properties of various types are listed in the following table.
|
Property type |
Control created to edit the property |
|---|---|
|
String |
|
|
Int, Float, Unit |
|
|
Boolean |
|
|
DropDownList (contains the list of enumerated values) |
|
The PropertyGridEditorPart class has a Title property, which is used to get or set the visible title text for the control. There is also a protected Display property, which determines whether the control is displayed when the page enters edit mode.
The PropertyGridEditorPart class also has two important methods, ApplyChanges and SyncChanges, which it inherits from the EditorPart class and overrides. The methods are critical because they enable getting and setting the property values between the field values of the editor control and the properties on the WebPart control being edited.
Because the PropertyGridEditorPart control allows you to edit only custom properties, you will need the other EditorPart controls in the Web Parts control set to edit the appearance, layout, and behavior of WebPart controls. The other controls include the BehaviorEditorPart, the LayoutEditorPart, and the AppearanceEditorPart controls. These EditorPart controls should provide most editing features required to edit WebPart controls, but if necessary, you can also create a custom editor control by inheriting from the EditorPart class. For a code example, see the EditorPart class overview topic.
Note
|
|---|
|
To improve accessibility, the PropertyGridEditorPart control is rendered within a <fieldset> element. The <fieldset> element groups the related set of controls used for editing in the PropertyGridEditorPart control, and it facilitates tabbed navigation among those controls for both visual user agents (such as ordinary Web browsers) and speech-oriented user agents (such as screen-reading software). |
Accessibility
The markup rendered by default for this control might not conform to accessibility standards such as the Web Content Accessibility Guidelines 1.0 (WCAG) priority 1 guidelines. For details about accessibility support for this control, see ASP.NET Controls and Accessibility.
The following code example demonstrates how to declare a PropertyGridEditorPart control on a Web page, and enable it to edit several UI properties of a WebPart control. The code example has four parts:
-
A user control that enables you to change display modes on a Web Parts page.
-
A Web page that contains an EditorZone control and a PropertyGridEditorPart control, along with a reference to a custom WebPart control.
-
A class that contains the custom WebPart control.
-
An explanation of how the example works when you load the page in a browser.
The source code for the user control comes from another topic. For this code example to work, you need to obtain the .ascx file for the user control from the Walkthrough: Changing Display Modes on a Web Parts Page topic, and place the file in the same folder as the .aspx page in this code example.
The second part of the code example is the Web page. It contains a declarative reference to an EditorZone control, with a child <zonetemplate> element that contains a declarative reference to a PropertyGridEditorPart control. The page references the custom WebPart control, using a Register directive for the assembly, and the <aspSample:UserInfoWebPart> element for the control.
<%@ page language="c#" %> <%@ register TagPrefix="uc1" TagName="DisplayModeMenuCS" Src="DisplayModeMenuCS.ascx" %> <%@ register tagprefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="UserInfoWebPartCS" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { Button1.Visible = false; TextBox1.Visible = false; } private static String editControlTitle; protected void Button1_Click(object sender, EventArgs e) { editControlTitle = Server.HtmlEncode(TextBox1.Text); PropertyGridEditorPart1.Title = editControlTitle; } protected void PropertyGridEditorPart1_Init(object sender, EventArgs e) { if (editControlTitle != null) PropertyGridEditorPart1.Title = editControlTitle; } protected void PropertyGridEditorPart1_PreRender(object sender, EventArgs e) { Button1.Visible = true; TextBox1.Visible = true; } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title> User Information WebPart with EditorPart </title> </head> <body> <form id="form1" runat="server"> <asp:webpartmanager id="WebPartManager1" runat="server" /> <uc1:DisplayModeMenuCS ID="DisplayModeMenu1" runat="server" /> <asp:webpartzone id="zone1" runat="server" > <PartTitleStyle BorderWidth="1" Font-Names="Verdana, Arial" Font-Size="110%" BackColor="LightBlue" /> <zonetemplate> <aspSample:UserInfoWebPart runat="server" id="userinfo" title = "User Information WebPart" BackColor="Beige" /> </zonetemplate> </asp:webpartzone> <div> <hr /> <asp:Button ID="Button1" runat="server" Text="Update EditorPart Title" OnClick="Button1_Click" /> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> </div> <asp:EditorZone ID="EditorZone1" runat="server"> <ZoneTemplate> <asp:PropertyGridEditorPart ID="PropertyGridEditorPart1" runat="server" Title="Edit Custom Properties" OnPreRender="PropertyGridEditorPart1_PreRender" OnInit="PropertyGridEditorPart1_Init" /> </ZoneTemplate> </asp:EditorZone> </form> </body> </html>
The third part of the code example is a custom WebPart class named UserInfoWebPart, which is referenced in the Web page. Notice that the various properties that contain information about a user are all marked with the WebBrowsable attribute. This enables the PropertyGridEditorPart control to provide the UI for editing those properties. The properties are also marked with a WebDisplayName attribute, to specify the text of the label that appears next to each control in the editing UI.
For the code example to run, you must compile this source code. You can compile it explicitly and put the resulting assembly in your Web site's Bin folder or the global assembly cache. Alternatively, you can put the source code in your site's App_Code folder, where it will be dynamically compiled at run time. For a walkthrough that demonstrates how to compile, see Walkthrough: Developing and Using a Custom Web Server Control.
Security Note
|
|---|
|
This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview. |
using System; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Security.Permissions; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; namespace Samples.AspNet.CS.Controls { [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)] public class UserInfoWebPart : WebPart { HttpServerUtility server = HttpContext.Current.Server; private String _userNickName = "Add a nickname."; private String _userPetName = "Add a pet name."; private DateTime _userSpecialDate = DateTime.Now; private Boolean _userIsCurrent = true; private JobTypeName _userJobType = JobTypeName.Unselected; public enum JobTypeName { Unselected = 0, Support = 1, Service = 2, Professional = 3, Technical = 4, Manager = 5, Executive = 6 } Label NickNameLabel; Label PetNickNameLabel; Label SpecialDateLabel; CheckBox IsCurrentCheckBox; Label JobTypeLabel; // Add the Personalizable and WebBrowsable attributes to the // public properties, so that users can save property values // and edit them with a PropertyGridEditorPart control. [Personalizable(), WebBrowsable, WebDisplayName("Nickname")] public String NickName { get { object o = ViewState["NickName"]; if (o != null) return (string)o; else return _userNickName; } set { _userNickName = server.HtmlEncode(value); } } [Personalizable(), WebBrowsable, WebDisplayName("Pet Name")] public String PetName { get { object o = ViewState["PetName"]; if (o != null) return (string)o; else return _userPetName; } set { _userPetName = server.HtmlEncode(value); } } [Personalizable(), WebBrowsable(), WebDisplayName("Special Day")] public DateTime SpecialDay { get { object o = ViewState["SpecialDay"]; if (o != null) return (DateTime)o; else return _userSpecialDate; } set { _userSpecialDate = value; } } [Personalizable(), WebBrowsable(), WebDisplayName("Job Type"), WebDescription("Select the category that corresponds to your job.")] public JobTypeName UserJobType { get { object o = ViewState["UserJobType"]; if (o != null) return (JobTypeName)o; else return _userJobType; } set { _userJobType = (JobTypeName)value; } } [Personalizable(), WebBrowsable(), WebDisplayName("Is Current")] public Boolean IsCurrent { get { object o = ViewState["IsCurrent"]; if (o != null) return (Boolean)o; else return _userIsCurrent; } set { _userIsCurrent = value; } } protected override void CreateChildControls() { Controls.Clear(); NickNameLabel = new Label(); NickNameLabel.Text = this.NickName; SetControlAttributes(NickNameLabel); PetNickNameLabel = new Label(); PetNickNameLabel.Text = this.PetName; SetControlAttributes(PetNickNameLabel); SpecialDateLabel = new Label(); SpecialDateLabel.Text = this.SpecialDay.ToShortDateString(); SetControlAttributes(SpecialDateLabel); IsCurrentCheckBox = new CheckBox(); IsCurrentCheckBox.Checked = this.IsCurrent; SetControlAttributes(IsCurrentCheckBox); JobTypeLabel = new Label(); JobTypeLabel.Text = this.UserJobType.ToString(); SetControlAttributes(JobTypeLabel); ChildControlsCreated = true; } private void SetControlAttributes(WebControl ctl) { ctl.BackColor = Color.White; ctl.BorderWidth = 1; ctl.Width = 200; this.Controls.Add(ctl); } protected override void RenderContents(HtmlTextWriter writer) { writer.Write("Nickname:"); writer.WriteBreak(); NickNameLabel.RenderControl(writer); writer.WriteBreak(); writer.Write("Pet Name:"); writer.WriteBreak(); PetNickNameLabel.RenderControl(writer); writer.WriteBreak(); writer.Write("Special Date:"); writer.WriteBreak(); SpecialDateLabel.RenderControl(writer); writer.WriteBreak(); writer.Write("Job Type:"); writer.WriteBreak(); JobTypeLabel.RenderControl(writer); writer.WriteBreak(); writer.Write("Current:"); writer.WriteBreak(); IsCurrentCheckBox.RenderControl(writer); } } }
When you load the page in a browser, select Edit Mode in the Display Mode drop-down list control to switch to edit mode. You can click the verbs menu (the downward arrow) in the title bar of the User Information WebPart control, and click Edit to edit the control. When the editing UI is visible, you can see the PropertyGridEditorPart control. Notice that a control is rendered for each of the properties of the UserInfoWebPart class, based on the type of the property. If you make some changes in the editing UI and click the Apply button, you can use the Display Mode drop-down list to return the page to browse mode and see the full effect of the editing changes.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
