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View Class

Represents a control that acts as a container for a group of controls within a MultiView control.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

public class View : Control
public class View extends Control
public class View extends Control
Not applicable.

The View control is a container for a group of controls. A View control must always be contained within a MultiView control. Only one View control at a time can be defined as the active view within a MultiView control.

The ActiveViewIndex property specifies the active View control within the Views collection of a MultiView control. The active view control is rendered to the client, as long as the containing MultiView control is visible. Use the Visible property to determine whether a View control and its child controls are visible on the page and rendered to the client.

A View control can contain controls of any type, including other MultiView controls. A View control does not support any style properties. To apply styles to a View control, add one or more Panel controls to the View control.

The View class provides the Activate and Deactivate events. The Activate event is raised when the current View control becomes the active view. This occurs when the value of the ActiveViewIndex property changes or the SetActiveView method is called to specify a different View control. For example, if View1 is the active view within a MultiView control, when the ActiveViewIndex property changes to specify View2, the Activate event is raised for View2 and the Deactivate event is raised for View1.

To allow users to navigate between multiple View controls within a MultiView control, you can add a LinkButton or Button control to each View control. Set the LinkButton or Button control's CommandName property to the ID of the View control to navigate to. For a code example, see ActiveViewChanged.

For more information on manipulating View controls within a MultiView control, see the MultiView topic.

The following code example demonstrates how to create a MultiView control that contains three View controls. The first time the page is loaded, DefaultView is set as the active view. Each View control contains link buttons to allow the user to navigate to different views. Note that each View control contains a Panel control to allow styles to be applied.

<%@ 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 Class Example</title>
<script runat="server">

        Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
            ' The first time the page loads,
            ' render the DefaultView.
            If Not IsPostBack Then
                ' Set DefaultView as the active view.
                MultiView1.SetActiveView(DefaultView)
            End If

        End Sub

        Sub LinkButton_Command(sender As Object, e As System.Web.UI.WebControls.CommandEventArgs)
            ' Determine which link button was clicked
            ' and set the active view to
            ' the view selected by the user.
            Select Case (e.CommandArgument)
                Case "DefaultView"
                    MultiView1.SetActiveView(DefaultView)
                Case "News"
                    MultiView1.SetActiveView(NewsView)
                Case "Shopping"
                    MultiView1.SetActiveView(ShoppingView)
                Case Else
                    Throw New Exception("You did not select a valid list item.")

            End Select

        End Sub

</script>

</head>
<body>
    <form id="Form1" runat="server">
        
        <h3>MultiView Class Example</h3>

        <asp:MultiView id="MultiView1"
            runat="Server">

            <asp:View id="DefaultView" 
                runat="Server">                

                <asp:Panel id="DefaultViewPanel" 
                    Width="330px" 
                    BackColor="#C0C0FF" 
                    BorderColor="#404040"
                    BorderStyle="Double"
                    runat="Server">  

                    <asp:Label id="DefaultLabel1" 
                        Font-bold="true"
                        Font-size="14" 
                        Text="The Default View"
                        runat="Server"
                        AssociatedControlID="DefaultView">
                    </asp:Label>                  

                    <asp:BulletedList id="DefaultBulletedList1" 
                        BulletStyle="Disc" 
                        DisplayMode="Hyperlink"
                        Target="_blank"
                        runat="Server">
                            <asp:ListItem Value="http://www.microsoft.com">Today's Weather</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Today's Stock Quotes</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Today's News Headlines</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Today's Featured Shopping</asp:ListItem>
                    </asp:BulletedList>

                    <hr />

                    <asp:Label id="DefaultLabel2"                      
                        Font-size="12" 
                        Text="Click a link to display a different view:"
                        runat="Server">
                    </asp:Label><br />
                
                    <asp:LinkButton id="Default_NewsLink" 
                        Text="Go to News View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="News" 
                        CommandName="Link"
            Width="150px"
                        runat="Server">
                    </asp:LinkButton>

                    <asp:LinkButton id="Default_ShoppingLink"
                        Text="Go to Shopping View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="Shopping" 
                        CommandName="Link"
            Width="150px"
                        runat="server">
                    </asp:LinkButton><br /><br />

                </asp:Panel>

            </asp:View>

            <asp:View id="NewsView" 
                runat="Server">

                <asp:Panel id="NewsPanel1" 
                    Width="330px" 
                    BackColor="#C0FFC0" 
                    BorderColor="#404040"
                    BorderStyle="Double"
                    runat="Server">

                    <asp:Label id="NewsLabel1" 
                        Font-bold="true"
                        Font-size="14"
                        Text="The News View"
                        runat="Server"
                        AssociatedControlID="NewsView">                    
                    </asp:Label>

                    <asp:BulletedList id="NewsBulletedlist1" 
                        BulletStyle="Disc" 
                        DisplayMode="Hyperlink"
                        Target="_blank"
                        runat="Server">
                            <asp:ListItem Value="http://www.microsoft.com">Today's International Headlines</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Today's National Headlines</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Today's Local News</asp:ListItem>
                    </asp:BulletedList>

                    <hr />

                    <asp:Label id="NewsLabel2"                      
                        Font-size="12" 
                        Text="Click a link to display a different view:"
                        runat="Server">
                    </asp:Label><br />

                    <asp:LinkButton id="News_DefaultLink" 
                        Text="Go to the Default View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="DefaultView" 
                        CommandName="Link"
                        Width="150px"
                        runat="Server">
                    </asp:LinkButton>

                    <asp:LinkButton id="News_ShoppingLink" 
                        Text="Go to Shopping View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="Shopping" 
                        CommandName="Link"
                        Width="150px"
                        runat="Server">
                    </asp:LinkButton><br /><br />

                </asp:Panel>

            </asp:View>

            <asp:View id="ShoppingView" 
                runat="Server">

                <asp:Panel id="ShoppingPanel1" 
                    Width="330px" 
                    BackColor="#FFFFC0" 
                    BorderColor="#404040"
                    BorderStyle="Double"
                    runat="Server">

                    <asp:Label id="ShoppingLabel1" 
                        Font-Bold="true"
                        Font-size="14"                         
                        Text="The Shopping View"
                        runat="Server"
                        AssociatedControlID="ShoppingView">
                    </asp:Label>

                    <asp:BulletedList id="ShoppingBulletedlist1" 
                        BulletStyle="Disc" 
                        DisplayMode="Hyperlink"
                        Target="_blank"
                        runat="Server">
                            <asp:ListItem Value="http://www.microsoft.com">Shop for Home and Garden </asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Shop for Women's Fashions</asp:ListItem>
                            <asp:ListItem Value="http://www.microsoft.com">Shop for Men's Fashions</asp:ListItem>
                    </asp:BulletedList>

                    <hr />

                    <asp:Label id="ShoppingLabel2" 
                        Font-size="12" 
                        Text="Click a link to display a different view:"
                        runat="Server">
                    </asp:Label><br />

                    <asp:LinkButton id="Shopping_DefaultLink" 
                        Text="Go to the Default View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="DefaultView" 
                        CommandName="Link"
                        Width="150px"
                        runat="Server">
                    </asp:LinkButton>

                    <asp:LinkButton id="Shopping_NewsLink"
                        Text="Go to News View" 
                        OnCommand="LinkButton_Command"
                        CommandArgument="News" 
                        CommandName="Link"
                        Width="150px"
                        runat="Server">
                    </asp:LinkButton><br /><br />

                </asp:Panel>

            </asp:View>

        </asp:MultiView>

    </form>
</body>
</html>

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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