MultiView.PreviousViewCommandName Veld
Definitie
Belangrijk
Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.
public: static initonly System::String ^ PreviousViewCommandName;public static readonly string PreviousViewCommandName; staticval mutable PreviousViewCommandName : stringPublic Shared ReadOnly PreviousViewCommandName As String Waarde van veld
Voorbeelden
In het volgende codevoorbeeld ziet u hoe u een MultiView besturingselement gebruikt om een basisenquête te maken. Elk View besturingselement is een afzonderlijke enquêtevraag. De PreviousViewCommandName velden en NextViewCommandName velden worden gebruikt voor automatische navigatie tussen de vorige en volgende View besturingselementen in de enquête.
Note
Het volgende codevoorbeeld maakt gebruik van het codemodel met één bestand en werkt mogelijk niet correct als deze rechtstreeks naar een codeachterstaand bestand wordt gekopieerd. Dit codevoorbeeld moet worden gekopieerd naar een leeg tekstbestand met een .aspx-extensie. Zie ASP.NET Web Forms Page Code Model voor meer informatie over het webformuliercodemodel.
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page4SaveButton_Click(Object sender, System.EventArgs e)
{
// 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;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>MultiView.NextViewCommandName Example</title>
</head>
<body>
<form id="Form1" runat="Server">
<h3>MultiView.NextViewCommandName 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"
CommandName="NextView"
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"
CommandName="PrevView"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
<asp:Button id="Page2Next"
Text = "Next"
CommandName="NextView"
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"
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"
CommandName="PrevView"
Height="25"
Width="70"
runat="Server">
</asp:Button>
<asp:Button id="Page3Next"
Text = "Next"
CommandName="NextView"
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="Page4SaveButton_Click"
Height="25"
Width="110"
runat="Server">
</asp:Button>
<asp:Button id="Page4Restart"
Text = "Retake Survey"
commandname="SwitchViewByID"
commandargument="Page1"
Height="25"
Width="110"
runat= "Server">
</asp:Button>
</asp:View>
</asp:MultiView>
</asp:Panel>
</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">
<script runat="server">
Sub Page4SaveButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
' 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
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>MultiView.NextViewCommandName Example</title>
</head>
<body>
<form id="Form1" runat="Server">
<h3>MultiView.NextViewCommandName 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"
CommandName="NextView"
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"
CommandName="PrevView"
Height="25"
Width="70"
runat= "Server">
</asp:Button>
<asp:Button id="Page2Next"
Text = "Next"
CommandName="NextView"
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"
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"
CommandName="PrevView"
Height="25"
Width="70"
runat="Server">
</asp:Button>
<asp:Button id="Page3Next"
Text = "Next"
CommandName="NextView"
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="Page4SaveButton_Click"
Height="25"
Width="110"
runat="Server">
</asp:Button>
<asp:Button id="Page4Restart"
Text = "Retake Survey"
commandname="SwitchViewByID"
commandargument="Page1"
Height="25"
Width="110"
runat= "Server">
</asp:Button>
</asp:View>
</asp:MultiView>
</asp:Panel>
</form>
</body>
</html>
Opmerkingen
Gebruik het PreviousViewCommandName veld om de opdrachtnaam PrevView weer te geven.
U kunt de waarde van dit veld gebruiken om te profiteren van het MultiView automatisch bijwerken van het actieve View besturingselement. Als een View besturingselement bijvoorbeeld een Button besturingselement bevat dat naar het volgende Viewnavigeert, kunt u de CommandName eigenschap instellen op de waarde van het PreviousViewCommandName veld, namelijk 'PrevView'. Hierdoor wordt de MultiView waarde van de ActiveViewIndex eigenschap automatisch verhoogd wanneer op de knop wordt geklikt.
