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. void RemoveBtn_Click(Object sender, EventArgs e){ if (myForm.Controls.Contains(Radio3)) { myForm.Controls.Remove(Radio3); } }
.NET Framework
Available since 1.1
Available since 1.1
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