HyperLinkDataBindingHandler Class
Definition
Important
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Provides a data-binding handler for a hyperlink property.
public ref class HyperLinkDataBindingHandler : System::Web::UI::Design::DataBindingHandler
public class HyperLinkDataBindingHandler : System.Web.UI.Design.DataBindingHandler
type HyperLinkDataBindingHandler = class
inherit DataBindingHandler
Public Class HyperLinkDataBindingHandler
Inherits DataBindingHandler
- Inheritance
Examples
The following code example creates a class, named CustomHyperLinkDataBindingHandler
, which derives from the HyperLinkDataBindingHandler
class. It resolves design-time data binding for the CustomHyperLink
class using the DataBindControl method.
// Derive a class from the HyperLinkDataBindingHandler. It will
// resolve data binding for the CustomHyperlink at design time.
public class CustomHyperLinkDataBindingHandler :
HyperLinkDataBindingHandler
{
// Override the DataBindControl to set property values in
// the DataBindingCollection at design time.
public override void DataBindControl(IDesignerHost designerHost,
Control control)
{
DataBindingCollection bindings =
((IDataBindingsAccessor)control).DataBindings;
DataBinding imageBinding = bindings["ImageUrl"];
// If Text is empty, supply a default value.
if (!(imageBinding == null))
{
CustomHyperLink hype = (CustomHyperLink)control;
hype.ImageUrl = "Image URL.";
}
// Call the base method to bind the control.
base.DataBindControl(designerHost, control);
} // DataBindControl
} // CustomHyperLinkDataBindingHandler
' Derive a class from the HyperLinkDataBindingHandler. It will
' resolve data binding for the CustomHyperlink at design time.
Public Class CustomHyperLinkDataBindingHandler
Inherits HyperLinkDataBindingHandler
' Override the DataBindControl to set property values in
' the DataBindingCollection at design time.
Public Overrides Sub DataBindControl( _
ByVal designerHost As IDesignerHost, ByVal control As Control)
Dim bindings As DataBindingCollection = _
CType(control, IDataBindingsAccessor).DataBindings
Dim imageBinding As DataBinding = bindings("ImageUrl")
If Not (imageBinding Is Nothing) Then
Dim hLink As CustomHyperLink = CType(control, CustomHyperLink)
hLink.ImageUrl = "Image URL."
End If
MyBase.DataBindControl(designerHost, control)
End Sub
End Class
Constructors
HyperLinkDataBindingHandler() |
Initializes an instance of the HyperLinkDataBindingHandler class. |
Methods
DataBindControl(IDesignerHost, Control) |
Resolves design-time data-binding for the specified control. |
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Applies to
Pripomienky
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