DataBindingHandlerAttribute Class
.NET Framework 3.0
Specifies a design-time class that performs data binding of controls within a designer. This class cannot be inherited.
Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
[AttributeUsageAttribute(AttributeTargets.Class)] public sealed class DataBindingHandlerAttribute : Attribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Class) */ public final class DataBindingHandlerAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Class) public final class DataBindingHandlerAttribute extends Attribute
Not applicable.
For more information about using attributes, see Extending Metadata Using Attributes.
The following code example defines a data-binding handler, named MyDataBindingHandler, to be used by the designer in editing mode. On exiting the editing mode, the Text property value is displayed.
using System; using System.Collections; using System.Web.UI; using System.Web.UI.Design; using System.Web.UI.WebControls; using System.ComponentModel; using System.ComponentModel.Design; namespace CustomControls { [ DataBindingHandler(typeof(MyDataBindingHandler)), ToolboxData("<{0}:MyLabel runat=server></{0}:MyLabel>") ] public class MyLabel : Label { public MyLabel() { // Insert your code here. } } public class MyDataBindingHandler : DataBindingHandler { public override void DataBindControl(IDesignerHost host, Control control) { ((Label)control).Text = "Added by data binding handler."; } } }
package CustomControls;
import System.*;
import System.Collections.*;
import System.Web.UI.*;
import System.Web.UI.Design.*;
import System.Web.UI.WebControls.*;
import System.ComponentModel.*;
import System.ComponentModel.Design.*;
/** @attribute DataBindingHandler(MyDataBindingHandler.class)
@attribute ToolboxData("<{0}:MyLabel runat=server></{0}:MyLabel>")
*/
public class MyLabel extends Label
{
public MyLabel()
{
// Insert your code here.
} //MyLabel
} //MyLabel
public class MyDataBindingHandler extends DataBindingHandler
{
public void DataBindControl(IDesignerHost host, Control control)
{
((Label)control).set_Text("Added by data binding handler.");
} //DataBindControl
} //MyDataBindingHandler
- AspNetHostingPermission for operating in a hosted environment. Demand value: LinkDemand; Permission value: Minimal.
Community Additions
ADD
Show: