ListControlDataBindingHandler.DataBindControl(IDesignerHost, Control) Method

public:
 override void DataBindControl(System::ComponentModel::Design::IDesignerHost ^ designerHost, System::Web::UI::Control ^ control);

public override void DataBindControl (System.ComponentModel.Design.IDesignerHost designerHost, System.Web.UI.Control control);

override this.DataBindControl : System.ComponentModel.Design.IDesignerHost * System.Web.UI.Control -> unit

Public Overrides Sub DataBindControl (designerHost As IDesignerHost, control As Control)

Parameters

Examples

The following code example shows how to override the DataBindControl method to add a string message to the associated SimpleRadioButtonList control when that control is data bound.

This code example is part of a larger example provided for the ListControlDataBindingHandler class.

// Override the DataBindControl. 
public override void DataBindControl(IDesignerHost designerHost, 
    Control control)
{
    // Create a reference, named dataSourceBinding, 
    // to the control DataSource binding.
    DataBinding dataSourceBinding = 
        ((IDataBindingsAccessor)control).DataBindings["DataSource"];

    // If the binding exists, create a reference to the
    // list control, clear its ListItemCollection, and then add
    // an item to the collection.
    if (! (dataSourceBinding == null))
    {
        SimpleRadioButtonList simpleControl = 
            (SimpleRadioButtonList)control;

        simpleControl.Items.Clear();
        simpleControl.Items.Add("Data-bound Radio Button.");
    }
} // DataBindControl

' Override the DataBindControl.
Public Overrides Sub DataBindControl( _
ByVal designerHost As IDesignerHost, _
ByVal control As Control)

    ' Create a reference, named dataSourceBinding,
    ' to the control's DataSource binding.
    Dim dataSourceBinding As DataBinding _
        = CType( _
        control, _
        IDataBindingsAccessor).DataBindings("DataSource")

    ' If the binding exists, create a reference to the
    ' list control, clear its ListItemCollection, and then add
    ' an item to the collection.
    If Not (dataSourceBinding Is Nothing) Then
        Dim simpleControl As SimpleRadioButtonList = _
            CType(control, SimpleRadioButtonList)

        simpleControl.Items.Clear()
        simpleControl.Items.Add("Data-bound Radio Button.")
    End If
End Sub

Remarks

If the ListControl control that is specified by control has a data source specified within its DataBindings property, the DataBindControl method clears the Items collection of the ListControl, and then adds a string message indicating that the ListControl is data bound to the Items collection.

Applies to

See also

• ListControl
• Items
• DataBindings
• DataBindControl(IDesignerHost, Control)
• ASP.NET Control Designers Overview