ValidatorCollection.Contains(IValidator) Méthode
Définition
Important
Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.
Détermine si le contrôle serveur de validation spécifié est contenu dans la collection ValidatorCollection de la page.
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
Paramètres
- validator
- IValidator
Contrôle serveur de validation à vérifier.
Retours
true
si le contrôle serveur de validation se trouve dans la collection ; sinon, false
.
Exemples
L'exemple de code suivant illustre l'utilisation de la méthode Contains.
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