ValidatorCollection.Contains(IValidator) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Determines whether the specified validation server control is contained within the page's ValidatorCollection collection.
public:
bool Contains(System::Web::UI::IValidator ^ validator);
public bool Contains (System.Web.UI.IValidator validator);
member this.Contains : System.Web.UI.IValidator -> bool
Public Function Contains (validator As IValidator) As Boolean
Parameters
- validator
- IValidator
The validation server control to check for.
Returns
true
if the validation server control is in the collection; otherwise, false
.
Examples
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);
this.Validators.Add(myRequiredFieldValidator);
myForm.Controls.Add(myLabel);
// Remove the RequiredFieldValidator.
if(Validators.Contains(myRequiredFieldValidator))
{
this.Validators.Remove(myRequiredFieldValidator);
Response.Write("RequiredFieldValidator is removed from ValidatorCollection<br>");
Response.Write("ValidatorCollection count after removing the Validator: "+Validators.Count+"<br>");
}
else
{
Response.Write("ValidatorCollection does not contain RequiredFieldValidator");
}
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
Applies to
See also
Feedback
https://aka.ms/ContentUserFeedback.
Kommer snart: I hele 2024 udfaser vi GitHub-problemer som feedbackmekanisme for indhold og erstatter det med et nyt feedbacksystem. Du kan få flere oplysninger under:Indsend og få vist feedback om