ImageField Members
.NET Framework 2.0
Represents a field that is displayed as an image in a data-bound control.
The following tables list the members exposed by the ImageField type.
(see also
Protected Properties
)
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| Name | Description | |
|---|---|---|
| AccessibleHeaderText | Gets or sets text that is rendered as the AbbreviatedText property value in some controls.(Inherited from DataControlField.) |
| AlternateText | Gets or sets the alternate text displayed for an image in the ImageField object. |
| ControlStyle | Gets or sets the style of any Web server controls contained by the DataControlField object.(Inherited from DataControlField.) |
| ConvertEmptyStringToNull | Gets or sets a value indicating whether empty string ("") values are converted to a null reference (Nothing in Visual Basic) when the field values are returned from the data source. |
| DataAlternateTextField | Gets or sets the name of the field from the data source that contains the values to bind to the AlternateText property of each image in an ImageField object. |
| DataAlternateTextFormatString | Gets or sets the string that specifies the format in which the alternate text for each image in an ImageField object is rendered. |
| DataImageUrlField | Gets or sets the name of the field from the data source that contains the values to bind to the ImageUrl property of each image in an ImageField object. |
| DataImageUrlFormatString | Gets or sets the string that specifies the format in which the URL for each image in an ImageField object is rendered. |
| FooterStyle | Gets or sets the style of the footer of the data control field.(Inherited from DataControlField.) |
| FooterText | Gets or sets the text that is displayed in the footer item of a data control field.(Inherited from DataControlField.) |
| HeaderImageUrl | Gets or sets the URL of an image that is displayed in the header item of a data control field.(Inherited from DataControlField.) |
| HeaderStyle | Gets or sets the style of the header of the data control field.(Inherited from DataControlField.) |
| HeaderText | Gets or sets the text that is displayed in the header item of a data control field.(Inherited from DataControlField.) |
| InsertVisible | Gets a value indicating whether the DataControlField object is visible when its parent data-bound control is in insert mode.(Inherited from DataControlField.) |
| ItemStyle | Gets the style of any text-based content displayed by a data control field.(Inherited from DataControlField.) |
| NullDisplayText | Gets or sets the text to display in an ImageField object when the value of the field specified by the DataImageUrlField property is a null reference (Nothing in Visual Basic). |
| NullImageUrl | Gets or sets the URL to an alternate image displayed in an ImageField object when the value of the field specified by the DataImageUrlField property is a null reference (Nothing in Visual Basic). |
| ReadOnly | Gets or sets a value indicating whether the values of the field specified by the DataImageUrlField property can be modified in edit mode. |
| ShowHeader | Gets or sets a value indicating whether the header item of a data control field is rendered.(Inherited from DataControlField.) |
| SortExpression | Gets or sets a sort expression that is used by a data source control to sort data.(Inherited from DataControlField.) |
| Visible | Gets or sets a value indicating whether a data control field is rendered.(Inherited from DataControlField.) |
| Name | Description | |
|---|---|---|
| Control | Gets a reference to the data control that the DataControlField object is associated with.(Inherited from DataControlField.) |
| DesignMode | Gets a value indicating whether a data control field is currently viewed in a design-time environment.(Inherited from DataControlField.) |
| IsTrackingViewState | Gets a value indicating whether the DataControlField object is saving changes to its view state.(Inherited from DataControlField.) |
| ViewState | Gets a dictionary of state information that allows you to save and restore the view state of a DataControlField object across multiple requests for the same page.(Inherited from DataControlField.) |
(see also
Protected Methods
)
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| Name | Description | |
|---|---|---|
| Equals | Overloaded. Determines whether two Object instances are equal. (Inherited from Object.) |
| ExtractValuesFromCell | Overridden. Fills the specified IOrderedDictionary object with the values from the specified DataControlFieldCell object. |
| GetHashCode | Serves as a hash function for a particular type. GetHashCode is suitable for use in hashing algorithms and data structures like a hash table. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| Initialize | Overridden. Initializes the ImageField object. |
| InitializeCell | Overridden. Initializes the specified DataControlFieldCell object with the specified cell type, row state, and row index. |
| ReferenceEquals | Determines whether the specified Object instances are the same instance. (Inherited from Object.) |
| ToString | Returns a string that represents this DataControlField object. (Inherited from DataControlField.) |
| ValidateSupportsCallback | Overridden. Determines whether the controls contained in an ImageField object support callbacks. |
| Name | Description | |
|---|---|---|
| CloneField | Creates a duplicate copy of the current DataControlField-derived object. (Inherited from DataControlField.) |
| CopyProperties | Overridden. Copies the properties of the current ImageField object to the specified object. |
| CreateField | Overridden. Returns a new instance of the ImageField class. |
| Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| FormatImageUrlValue | Applies the format specified by the DataImageUrlFormatString property to a field value. |
| GetDesignTimeValue | Retrieves the value used for a field's value when rendering the ImageField object in a designer. |
| GetFormattedAlternateText | Applies the format specified by the DataAlternateTextFormatString property to the alternate text value contained in the specified Control object. |
| GetValue | Retrieves the value of the specified field from the specified control. |
| InitializeDataCell | Initializes the specified DataControlFieldCell object with the specified row state. |
| LoadViewState | Restores the data source view's previously saved view state. (Inherited from DataControlField.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| OnDataBindField | Binds the value of a field to the ImageField object. |
| OnFieldChanged | Raises the FieldChanged event. (Inherited from DataControlField.) |
| SaveViewState | Saves the changes made to the DataControlField view state since the time the page was posted back to the server. (Inherited from DataControlField.) |
| TrackViewState | Causes the DataControlField object to track changes to its view state so they can be stored in the control's ViewState property and persisted across requests for the same page. (Inherited from DataControlField.) |
Reference
ImageField ClassSystem.Web.UI.WebControls Namespace
GridView Class
GridView.Columns Property
DetailsView Class
DetailsView.Fields Property
BoundField Class
ButtonField Class
CheckBoxField Class
CommandField Class
HyperLinkField Class
TemplateField
AlternateText
DataAlternateTextField
DataAlternateTextFormatString
DataImageUrlField
DataImageUrlFormatString
NullDisplayText
NullImageUrl
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