ControlCollection.Contains Method (Control)

 

Determines whether the specified server control is in the parent server control's ControlCollection object.

Namespace:   System.Web.UI
Assembly:  System.Web (in System.Web.dll)

Public Overridable Function Contains (
	c As Control
) As Boolean

Parameters

c
Type: System.Web.UI.Control

The server control to search for in the collection.

Return Value

Type: System.Boolean

true if the specified server control exists in the collection; otherwise, false.

     ' Create an event handler that uses the 
     ' ControlCollection.Contains method to verify
     ' the existence of a Radio3 server control in
     ' the ControlCollection of the myForm server control.
     ' When a user clicks the button associated
     ' with this event handler, Radio3 is removed
     ' from the collection.
Sub RemoveBtn_Click(sender As [Object], e As EventArgs)
      If myForm.Controls.Contains(Radio3) Then
           myForm.Controls.Remove(Radio3)
      End If
End Sub 'RemoveBtn_Click

.NET Framework
Available since 1.1
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