ValidatorCollection.Contains Method (IValidator)
.NET Framework (current version)
Determines whether the specified validation server control is contained within the page's ValidatorCollection collection.
Assembly: System.Web (in System.Web.dll)
Parameters
- validator
-
Type:
System.Web.UI.IValidator
The validation server control to check for.
Return Value
Type: System.Booleantrue if the validation server control is in the collection; otherwise, false.
The following code example demonstrates how to use the Contains method.
Controls.Add(myForm) myForm.Controls.Add(myLabel1) myForm.Controls.Add(myTextBox) myForm.Controls.Add(myButton) Me.Validators.Add(myRequiredFieldValidator) myForm.Controls.Add(myLabel) ' Remove the RequiredFieldValidator. If Validators.Contains(myRequiredFieldValidator) Then Me.Validators.Remove(myRequiredFieldValidator) Response.Write("RequiredFieldValidator is removed from ValidatorCollection<br>") Response.Write("ValidatorCollection count after removing the Validator: " + Validators.Count.ToString() + "<br>") Else Response.Write("ValidatorCollection does not contain RequiredFieldValidator") End If
.NET Framework
Available since 1.1
Available since 1.1
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