Hinweis
Für den Zugriff auf diese Seite ist eine Autorisierung erforderlich. Sie können versuchen, sich anzumelden oder das Verzeichnis zu wechseln.
Für den Zugriff auf diese Seite ist eine Autorisierung erforderlich. Sie können versuchen, das Verzeichnis zu wechseln.
Aktualisiert: November 2007
Stellt ein Steuerelement dar, das in einem MultiView-Steuerelement als Container für eine Gruppe von Steuerelementen verwendet wird.
<asp:View
EnableTheming="True|False"
EnableViewState="True|False"
ID="string"
OnActivate="Activate event handler"
OnDataBinding="DataBinding event handler"
OnDeactivate="Deactivate event handler"
OnDisposed="Disposed event handler"
OnInit="Init event handler"
OnLoad="Load event handler"
OnPreRender="PreRender event handler"
OnUnload="Unload event handler"
runat="server"
SkinID="string"
Visible="True|False"
/>
Hinweise
Das View-Steuerelement ist ein Container für eine Gruppe von Steuerelementen. Ein View-Steuerelement muss immer in einem MultiView-Steuerelement enthalten sein. In einem MultiView-Steuerelement kann jeweils nur ein View-Steuerelement als aktive Ansicht definiert sein.
Weitere Informationen zur Verwendung des View-Steuerelements und des MultiView-Steuerelements finden Sie unter Übersicht über die MultiView-Webserversteuerelemente und View-Webserversteuerelemente.
Beispiel
Im folgenden Codebeispiel wird veranschaulicht, wie mithilfe eines MultiView-Steuerelements eine einfache Umfrage erstellt wird. Jedes View-Steuerelement stellt eine separate Frage der Umfrage dar. Wenn der Benutzer auf einer Seite auf die Schaltfläche Zurück klickt, wird die ActiveViewIndex-Eigenschaft dekrementiert, um zurück zum vorherigen View-Steuerelement zu navigieren. Wenn der Benutzer auf einer Seite auf die Schaltfläche Weiter klickt, wird die ActiveViewIndex-Eigenschaft inkrementiert, um zum nächsten View-Steuerelement zu navigieren.
<%@ 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>MultiView ActiveViewIndex Example</title>
<script runat="server">
Sub NextButton_Command(sender As Object, e As System.EventArgs)
' Determine which button was clicked
' and set the ActiveViewIndex property to
' the view selected by the user.
If (DevPollMultiView.ActiveViewIndex > -1) AND DevPollMultiView.ActiveViewIndex < 3 Then
' Increment the ActiveViewIndex property
' by one to advance to the next view.
DevPollMultiView.ActiveViewIndex += 1
ElseIf DevPollMultiView.ActiveViewIndex = 3 Then
' This is the final view.
' The user wants to save the survey results.
' Insert code here to save survey results.
' Disable the navigation buttons.
Page4Save.Enabled = False
Page4Restart.Enabled = False
Else
Throw New Exception("An error occurred.")
End If
End Sub
Sub BackButton_Command(ByVal sender As Object, ByVal e As System.EventArgs)
If (DevPollMultiView.ActiveViewIndex > 0) And DevPollMultiView.ActiveViewIndex <= 2 Then
' Decrement the ActiveViewIndex property
' by one to return to the previous view.
DevPollMultiView.ActiveViewIndex -= 1
ElseIf DevPollMultiView.ActiveViewIndex = 3 Then
' This is the final view.
' The user wants to restart the survey.
' Return to the first view.
DevPollMultiView.ActiveViewIndex = 0
Else
Throw New Exception("An error occurred.")
End If
End Sub
</script>
</head>
<body>
<form id="Form1" runat="Server">
<h3>MultiView ActiveViewIndex Example</h3>
<asp:Panel id="Page1ViewPanel"
Width="330px"
Height="150px"
HorizontalAlign ="Left"
Font-size="12"
BackColor="#C0C0FF"
BorderColor="#404040"
BorderStyle="Double"
runat="Server">
<asp:MultiView id="DevPollMultiView"
ActiveViewIndex="0"
runat="Server">
<asp:View id="Page1"
runat="Server">
<asp:Label id="Page1Label"
Font-bold="true"
Text="What kind of applications do you develop?"
runat="Server"
AssociatedControlID="Page1">
</asp:Label><br /><br />
<asp:RadioButton id="Page1Radio1"
Text="Web Applications"
Checked="False"
GroupName="RadioGroup1"
runat="server" >
</asp:RadioButton><br />
<asp:RadioButton id="Page1Radio2"
Text="Windows Forms Applications"
Checked="False"
GroupName="RadioGroup1"
runat="server" >
</asp:RadioButton><br /><br /><br />
<asp:Button id="Page1Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
</asp:View>
<asp:View id="Page2"
runat="Server">
<asp:Label id="Page2Label"
Font-bold="true"
Text="How long have you been a developer?"
runat="Server"
AssociatedControlID="Page2">
</asp:Label><br /><br />
<asp:RadioButton id="Page2Radio1"
Text="Less than five years"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page2Radio2"
Text="More than five years"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br /><br /><br />
<asp:Button id="Page2Back"
Text = "Previous"
OnClick="BackButton_Command"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
<asp:Button id="Page2Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button>
</asp:View>
<asp:View id="Page3"
runat="Server">
<asp:Label id="Page3Label1"
Font-bold="true"
Text= "What is your primary programming language?"
runat="Server"
AssociatedControlID="Page3">
</asp:Label><br /><br />
<asp:RadioButton id="Page3Radio1"
Text="Visual Basic .NET"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page3Radio2"
Text="C#"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page3Radio3"
Text="C++"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br /><br />
<asp:Button id="Page3Back"
Text = "Previous"
OnClick="BackButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button>
<asp:Button id="Page3Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button><br />
</asp:View>
<asp:View id="Page4"
runat="Server">
<asp:Label id="Label1"
Font-bold="true"
Text = "Thank you for taking the survey."
runat="Server"
AssociatedControlID="Page4">
</asp:Label>
<br /><br /><br /><br /><br /><br />
<asp:Button id="Page4Save"
Text = "Save Responses"
OnClick="NextButton_Command"
Height="25"
Width="110"
runat="Server">
</asp:Button>
<asp:Button id="Page4Restart"
Text = "Retake Survey"
OnClick="BackButton_Command"
Height="25"
Width="110"
runat= "Server">
</asp:Button>
</asp:View>
</asp:MultiView>
</asp:Panel>
</form>
</body>
</html>
<%@ 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>MultiView ActiveViewIndex Example</title>
<script runat="server">
protected void NextButton_Command(object sender, EventArgs e)
{
// Determine which button was clicked
// and set the ActiveViewIndex property to
// the view selected by the user.
if (DevPollMultiView.ActiveViewIndex > -1 & DevPollMultiView.ActiveViewIndex < 3)
{
// Increment the ActiveViewIndex property
// by one to advance to the next view.
DevPollMultiView.ActiveViewIndex += 1;
}
else if (DevPollMultiView.ActiveViewIndex == 3)
{
// This is the final view.
// The user wants to save the survey results.
// Insert code here to save survey results.
// Disable the navigation buttons.
Page4Save.Enabled = false;
Page4Restart.Enabled = false;
}
else
{
throw new Exception("An error occurred.");
}
}
protected void BackButton_Command(object sender, EventArgs e)
{
if (DevPollMultiView.ActiveViewIndex > 0 & DevPollMultiView.ActiveViewIndex <= 2)
{
// Decrement the ActiveViewIndex property
// by one to return to the previous view.
DevPollMultiView.ActiveViewIndex -= 1;
}
else if (DevPollMultiView.ActiveViewIndex == 3)
{
// This is the final view.
// The user wants to restart the survey.
// Return to the first view.
DevPollMultiView.ActiveViewIndex = 0;
}
else
{
throw new Exception("An error occurred.");
}
}
</script>
</head>
<body>
<form id="Form1" runat="Server">
<h3>MultiView ActiveViewIndex Example</h3>
<asp:Panel id="Page1ViewPanel"
Width="330px"
Height="150px"
HorizontalAlign="Left"
Font-size="12"
BackColor="#C0C0FF"
BorderColor="#404040"
BorderStyle="Double"
runat="Server">
<asp:MultiView id="DevPollMultiView"
ActiveViewIndex="0"
runat="Server">
<asp:View id="Page1"
runat="Server">
<asp:Label id="Page1Label"
Font-bold="true"
Text="What kind of applications do you develop?"
runat="Server"
AssociatedControlID="Page1">
</asp:Label><br /><br />
<asp:RadioButton id="Page1Radio1"
Text="Web Applications"
Checked="False"
GroupName="RadioGroup1"
runat="server" >
</asp:RadioButton><br />
<asp:RadioButton id="Page1Radio2"
Text="Windows Forms Applications"
Checked="False"
GroupName="RadioGroup1"
runat="server" >
</asp:RadioButton><br /><br /><br />
<asp:Button id="Page1Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
</asp:View>
<asp:View id="Page2"
runat="Server">
<asp:Label id="Page2Label"
Font-bold="true"
Text="How long have you been a developer?"
runat="Server"
AssociatedControlID="Page2">
</asp:Label><br /><br />
<asp:RadioButton id="Page2Radio1"
Text="Less than five years"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page2Radio2"
Text="More than five years"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br /><br /><br />
<asp:Button id="Page2Back"
Text = "Previous"
OnClick="BackButton_Command"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
<asp:Button id="Page2Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button>
</asp:View>
<asp:View id="Page3"
runat="Server">
<asp:Label id="Page3Label1"
Font-bold="true"
Text= "What is your primary programming language?"
runat="Server"
AssociatedControlID="Page3">
</asp:Label><br /><br />
<asp:RadioButton id="Page3Radio1"
Text="Visual Basic .NET"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page3Radio2"
Text="C#"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br />
<asp:RadioButton id="Page3Radio3"
Text="C++"
Checked="False"
GroupName="RadioGroup1"
runat="Server">
</asp:RadioButton><br /><br />
<asp:Button id="Page3Back"
Text = "Previous"
OnClick="BackButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button>
<asp:Button id="Page3Next"
Text = "Next"
OnClick="NextButton_Command"
Height="25"
Width="70"
runat="Server">
</asp:Button><br />
</asp:View>
<asp:View id="Page4"
runat="Server">
<asp:Label id="Label1"
Font-bold="true"
Text = "Thank you for taking the survey."
runat="Server"
AssociatedControlID="Page4">
</asp:Label>
<br /><br /><br /><br /><br /><br />
<asp:Button id="Page4Save"
Text = "Save Responses"
OnClick="NextButton_Command"
Height="25"
Width="110"
runat="Server">
</asp:Button>
<asp:Button id="Page4Restart"
Text = "Retake Survey"
OnClick="BackButton_Command"
Height="25"
Width="110"
runat= "Server">
</asp:Button>
</asp:View>
</asp:MultiView>
</asp:Panel>
</form>
</body>
</html>
Siehe auch
Konzepte
Übersicht über die MultiView-Webserversteuerelemente und View-Webserversteuerelemente