View.Deactivate Événement
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.
Se produit lorsque le contrôle View actuellement actif devient inactif.
public:
event EventHandler ^ Deactivate;public event EventHandler Deactivate;member this.Deactivate : EventHandler Public Custom Event Deactivate As EventHandler Type d'événement
Exemples
L’exemple de code suivant montre comment spécifier et coder un gestionnaire d’événements pour l’événement Deactivate d’un View contrôle. Lorsque l’affichage actif change, un message s’affiche à l’utilisateur spécifiant le View contrôle qui a déclenché l’événement Activate et le View contrôle qui a déclenché l’événement Deactivate .
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>View.Activate Event Example</title>
<script runat="server">
protected void Index_Changed(object sender, EventArgs e)
{
// Set the active view to
// the view selected by the user.
String str = ViewListBox.SelectedItem.Text;
switch (str)
{
case "DefaultView":
MultiView1.SetActiveView(DefaultView);
break;
case "NewsView":
MultiView1.SetActiveView(NewsView);
break;
case "ShoppingView":
MultiView1.SetActiveView(ShoppingView);
break;
}
}
// The handler for the DefaultView's Activate event.
protected void DefaultView_Activate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the DefaultView.";
}
// The handler for the DefaultView's Deactivate event.
protected void DefaultView_Deactivate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the DefaultView.";
}
// The handler for the ShoppingView's Activate event.
protected void ShoppingView_Activate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the ShoppingView.";
}
// The handler for the ShoppingView's Deactivate event.
protected void ShoppingView_Deactivate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the ShoppingView.";
}
// The handler for the NewsView's Activate event.
protected void NewsView_Activate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the NewsView.";
}
// The handler for the NewsView's Deactivate event.
protected void NewsView_Deactivate(object sender, EventArgs e)
{
// Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the NewsView.";
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
MultiView1.SetActiveView(DefaultView);
}
}
</script>
</head>
<body>
<form id="Form1" runat="server">
<h3>
View Activate and Deactivate Events Example</h3>
<h4>
Select a view to display in a MultiView control:</h4>
<asp:ListBox ID="ViewListBox" Rows="1" SelectionMode="Single" AutoPostBack="True"
OnSelectedIndexChanged="Index_Changed" runat="Server">
<asp:ListItem Value="0">DefaultView</asp:ListItem>
<asp:ListItem Value="1">NewsView</asp:ListItem>
<asp:ListItem Value="2">ShoppingView</asp:ListItem>
</asp:ListBox><br />
<br />
<hr />
<asp:MultiView ID="MultiView1" runat="Server">
<asp:View ID="DefaultView" OnActivate="DefaultView_Activate" OnDeactivate="DefaultView_Deactivate"
runat="Server">
<asp:Panel ID="DefaultPanel1" Width="250px" BackColor="#C0C0FF" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="DefaultLabel1" Font-Bold="true" Font-Size="20" Text="The Default View"
runat="Server" AssociatedControlID="DefaultView">
</asp:Label>
</asp:Panel>
</asp:View>
<asp:View ID="NewsView" OnActivate="NewsView_Activate" OnDeactivate="NewsView_Deactivate"
runat="Server">
<asp:Panel ID="NewsPanel1" Width="250px" BackColor="#C0FFC0" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="NewsLabel1" Font-Bold="true" Font-Size="20" Text="The News View" runat="Server"
AssociatedControlID="NewsView">
</asp:Label>
</asp:Panel>
</asp:View>
<asp:View ID="ShoppingView" OnActivate="ShoppingView_Activate" OnDeactivate="ShoppingView_Deactivate"
runat="Server">
<asp:Panel ID="ShoppingPanel1" Width="250px" BackColor="#FFFFC0" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="ShoppingLabel1" Font-Bold="true" Font-Size="20" Text="The Shopping View"
runat="Server" AssociatedControlID="ShoppingView">
</asp:Label>
</asp:Panel>
</asp:View>
</asp:MultiView><br />
<br />
<asp:Label ID="ActivateLabel" BackColor="#ffff66" runat="Server">
</asp:Label><br />
<asp:Label ID="DeactivateLabel" BackColor="#ffff66" runat="Server">
</asp:Label>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>View.Activate Event Example</title>
<script runat="server">
Sub Index_Changed(ByVal Sender As Object, ByVal e As EventArgs)
' Set the active view to
' the view selected by the user.
Dim str As String = ViewListBox.SelectedItem.Text
Select Case (str)
Case "DefaultView"
MultiView1.SetActiveView(DefaultView)
Case "NewsView"
MultiView1.SetActiveView(NewsView)
Case "ShoppingView"
MultiView1.SetActiveView(ShoppingView)
End Select
End Sub
' The handler for the DefaultView's Activate event.
Sub DefaultView_Activate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the DefaultView."
End Sub
' The handler for the DefaultView's Deactivate event.
Sub DefaultView_Deactivate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the DefaultView."
End Sub
' The handler for the ShoppingView's Activate event.
Sub ShoppingView_Activate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the ShoppingView."
End Sub
' The handler for the ShoppingView's Deactivate event.
Sub ShoppingView_Deactivate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the ShoppingView."
End Sub
' The handler for the NewsView's Activate event.
Sub NewsView_Activate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
ActivateLabel.Text = "The Activate event was raised for the NewsView."
End Sub
' The handler for the NewsView's Deactivate event.
Sub NewsView_Deactivate(ByVal sender As Object, ByVal e As EventArgs)
' Notify the user that the event was raised.
DeactivateLabel.Text = "The Deactivate event was raised for the NewsView."
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
If Not (IsPostBack) Then
MultiView1.SetActiveView(DefaultView)
End If
End Sub
</script>
</head>
<body>
<form id="Form1" runat="server">
<h3>
View Activate and Deactivate Events Example</h3>
<h4>
Select a view to display in a MultiView control:</h4>
<asp:ListBox ID="ViewListBox" Rows="1" SelectionMode="Single" AutoPostBack="True"
OnSelectedIndexChanged="Index_Changed" runat="Server">
<asp:ListItem Value="0">DefaultView</asp:ListItem>
<asp:ListItem Value="1">NewsView</asp:ListItem>
<asp:ListItem Value="2">ShoppingView</asp:ListItem>
</asp:ListBox><br />
<br />
<hr />
<asp:MultiView ID="MultiView1" runat="Server">
<asp:View ID="DefaultView" OnActivate="DefaultView_Activate" OnDeactivate="DefaultView_Deactivate"
runat="Server">
<asp:Panel ID="DefaultPanel1" Width="250px" BackColor="#C0C0FF" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="DefaultLabel1" Font-Bold="true" Font-Size="20" Text="The Default View"
runat="Server" AssociatedControlID="DefaultView">
</asp:Label>
</asp:Panel>
</asp:View>
<asp:View ID="NewsView" OnActivate="NewsView_Activate" OnDeactivate="NewsView_Deactivate"
runat="Server">
<asp:Panel ID="NewsPanel1" Width="250px" BackColor="#C0FFC0" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="NewsLabel1" Font-Bold="true" Font-Size="20" Text="The News View" runat="Server"
AssociatedControlID="NewsView">
</asp:Label>
</asp:Panel>
</asp:View>
<asp:View ID="ShoppingView" OnActivate="ShoppingView_Activate" OnDeactivate="ShoppingView_Deactivate"
runat="Server">
<asp:Panel ID="ShoppingPanel1" Width="250px" BackColor="#FFFFC0" BorderColor="#404040"
BorderStyle="Double" runat="Server">
<asp:Label ID="ShoppingLabel1" Font-Bold="true" Font-Size="20" Text="The Shopping View"
runat="Server" AssociatedControlID="ShoppingView">
</asp:Label>
</asp:Panel>
</asp:View>
</asp:MultiView><br />
<br />
<asp:Label ID="ActivateLabel" BackColor="#ffff66" runat="Server">
</asp:Label><br />
<asp:Label ID="DeactivateLabel" BackColor="#ffff66" runat="Server">
</asp:Label>
</form>
</body>
</html>
Remarques
L’événement Deactivate est déclenché lorsque le contrôle actif View actuel devient inactif. Un View contrôle devient inactif lorsque la valeur de la ActiveViewIndex propriété change ou que la SetActiveView méthode est appelée pour spécifier un autre View contrôle. Par exemple, si View1 est la vue active dans un MultiView contrôle, lorsque la ActiveViewIndex propriété change pour spécifier View2, l’événement Deactivate est déclenché pour View1 et l’événement Activate est déclenché pour View2.
S’applique à
Voir aussi
Collaborer avec nous sur GitHub
La source de ce contenu se trouve sur GitHub, où vous pouvez également créer et examiner les problèmes et les demandes de tirage. Pour plus d’informations, consultez notre guide du contributeur.
Commentaires
Bientôt disponible : Tout au long de 2024, nous allons supprimer progressivement GitHub Issues comme mécanisme de commentaires pour le contenu et le remplacer par un nouveau système de commentaires. Pour plus d’informations, consultez https://aka.ms/ContentUserFeedback.
Envoyer et afficher des commentaires pour