ControlCollection.Contains Method (Control)
.NET Framework (current version)
Determines whether the specified server control is in the parent server control's ControlCollection object.
Assembly: System.Web (in System.Web.dll)
Parameters
- c
-
Type:
System.Web.UI.Control
The server control to search for in the collection.
Return Value
Type: System.Booleantrue 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
Available since 1.1
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