ImageField Members

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.

  Name Description
Public method ImageField Initializes a new instance of the ImageField class.
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  Name Description
Public field Static ThisExpression Represents the "this" expression.
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(see also Protected Properties )
  Name Description
Public property AccessibleHeaderText  Gets or sets text that is rendered as the AbbreviatedText property value in some controls.(Inherited from DataControlField.)
Public property AlternateText Gets or sets the alternate text displayed for an image in the ImageField object.
Public property ControlStyle  Gets or sets the style of any Web server controls contained by the DataControlField object.(Inherited from DataControlField.)
Public property 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.
Public property 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.
Public property DataAlternateTextFormatString Gets or sets the string that specifies the format in which the alternate text for each image in an ImageField object is rendered.
Public property 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.
Public property DataImageUrlFormatString Gets or sets the string that specifies the format in which the URL for each image in an ImageField object is rendered.
Public property FooterStyle  Gets or sets the style of the footer of the data control field.(Inherited from DataControlField.)
Public property FooterText  Gets or sets the text that is displayed in the footer item of a data control field.(Inherited from DataControlField.)
Public property HeaderImageUrl  Gets or sets the URL of an image that is displayed in the header item of a data control field.(Inherited from DataControlField.)
Public property HeaderStyle  Gets or sets the style of the header of the data control field.(Inherited from DataControlField.)
Public property HeaderText  Gets or sets the text that is displayed in the header item of a data control field.(Inherited from DataControlField.)
Public property InsertVisible  Gets a value indicating whether the DataControlField object is visible when its parent data-bound control is in insert mode.(Inherited from DataControlField.)
Public property ItemStyle  Gets the style of any text-based content displayed by a data control field.(Inherited from DataControlField.)
Public property 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).
Public property 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).
Public property ReadOnly Gets or sets a value indicating whether the values of the field specified by the DataImageUrlField property can be modified in edit mode.
Public property ShowHeader  Gets or sets a value indicating whether the header item of a data control field is rendered.(Inherited from DataControlField.)
Public property SortExpression  Gets or sets a sort expression that is used by a data source control to sort data.(Inherited from DataControlField.)
Public property Visible  Gets or sets a value indicating whether a data control field is rendered.(Inherited from DataControlField.)
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  Name Description
Protected property Control  Gets a reference to the data control that the DataControlField object is associated with.(Inherited from DataControlField.)
Protected property DesignMode  Gets a value indicating whether a data control field is currently viewed in a design-time environment.(Inherited from DataControlField.)
Protected property IsTrackingViewState  Gets a value indicating whether the DataControlField object is saving changes to its view state.(Inherited from DataControlField.)
Protected property 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.)
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(see also Protected Methods )
  Name Description
Public method Equals  Overloaded. Determines whether two Object instances are equal. (Inherited from Object.)
Public method ExtractValuesFromCell Overridden. Fills the specified IOrderedDictionary object with the values from the specified DataControlFieldCell object.
Public method 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.)
Public method GetType  Gets the Type of the current instance. (Inherited from Object.)
Public method Initialize Overridden. Initializes the ImageField object.
Public method InitializeCell Overridden. Initializes the specified DataControlFieldCell object with the specified cell type, row state, and row index.
Public method Static ReferenceEquals  Determines whether the specified Object instances are the same instance. (Inherited from Object.)
Public method ToString  Returns a string that represents this DataControlField object. (Inherited from DataControlField.)
Public method ValidateSupportsCallback Overridden. Determines whether the controls contained in an ImageField object support callbacks.
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  Name Description
Protected method CloneField  Creates a duplicate copy of the current DataControlField-derived object. (Inherited from DataControlField.)
Protected method CopyProperties Overridden. Copies the properties of the current ImageField object to the specified object.
Protected method CreateField Overridden. Returns a new instance of the ImageField class.
Protected method 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.)
Protected method FormatImageUrlValue Applies the format specified by the DataImageUrlFormatString property to a field value.
Protected method GetDesignTimeValue Retrieves the value used for a field's value when rendering the ImageField object in a designer.
Protected method GetFormattedAlternateText Applies the format specified by the DataAlternateTextFormatString property to the alternate text value contained in the specified Control object.
Protected method GetValue Retrieves the value of the specified field from the specified control.
Protected method InitializeDataCell Initializes the specified DataControlFieldCell object with the specified row state.
Protected method LoadViewState  Restores the data source view's previously saved view state. (Inherited from DataControlField.)
Protected method MemberwiseClone  Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method OnDataBindField Binds the value of a field to the ImageField object.
Protected method OnFieldChanged  Raises the FieldChanged event. (Inherited from DataControlField.)
Protected method SaveViewState  Saves the changes made to the DataControlField view state since the time the page was posted back to the server. (Inherited from DataControlField.)
Protected method 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.)
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