ValidatorCollection.Contains(IValidator) Method
Definition
Important
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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
Sodelujte z nami v storitvi GitHub
Vir za to vsebino najdete v storitvi GitHub, kjer lahko tudi ustvarite in pregledate težave in zahtevke za uveljavitev sprememb. Če želite več informacij, glejte naš vodnik za sodelavce.