ListView.AlternatingItemTemplate Property (System.Web.UI.WebControls)

AlternatingItemTemplate Property

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.NET Framework Class Library

ListView..::.AlternatingItemTemplate Property

Updated: November 2007

Gets or sets the custom content for the alternating data item in a ListView control.

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

Syntax

Visual Basic (Declaration)

<BrowsableAttribute(False)> _
<PersistenceModeAttribute(PersistenceMode.InnerProperty)> _
<TemplateContainerAttribute(GetType(ListViewDataItem), BindingDirection.TwoWay)> _
Public Overridable Property AlternatingItemTemplate As ITemplate

Visual Basic (Usage)

Dim instance As ListView
Dim value As ITemplate

value = instance.AlternatingItemTemplate

instance.AlternatingItemTemplate = value

[BrowsableAttribute(false)]
[PersistenceModeAttribute(PersistenceMode.InnerProperty)]
[TemplateContainerAttribute(typeof(ListViewDataItem), BindingDirection.TwoWay)]
public virtual ITemplate AlternatingItemTemplate { get; set; }

Visual C++

[BrowsableAttribute(false)]
[PersistenceModeAttribute(PersistenceMode::InnerProperty)]
[TemplateContainerAttribute(typeof(ListViewDataItem), BindingDirection::TwoWay)]
public:
virtual property ITemplate^ AlternatingItemTemplate {
    ITemplate^ get ();
    void set (ITemplate^ value);
}

/** @property */
/** @attribute BrowsableAttribute(false) */
/** @attribute PersistenceModeAttribute(PersistenceMode.InnerProperty) */
/** @attribute TemplateContainerAttribute(ListViewDataItem, BindingDirection.TwoWay) */
public ITemplate get_AlternatingItemTemplate()
/** @property */
/** @attribute BrowsableAttribute(false) */
/** @attribute PersistenceModeAttribute(PersistenceMode.InnerProperty) */
/** @attribute TemplateContainerAttribute(ListViewDataItem, BindingDirection.TwoWay) */
public  void set_AlternatingItemTemplate(ITemplate value)

JScript

public function get AlternatingItemTemplate () : ITemplate
public function set AlternatingItemTemplate (value : ITemplate)

ASP.NET

<asp:ListView>
    <AlternatingItemTemplate>ITemplate</AlternatingItemTemplate>
</asp:ListView>

Property Value

Type: System.Web.UI..::.ITemplate

An object that contains the custom content for the alternating data item in a ListView control. The default is nullNothingnullptra null reference (Nothing in Visual Basic), which indicates that this property is not set.

Remarks

Use the AlternatingItemTemplate property to define a custom user interface (UI) for the alternating data item. The AlternatingItemTemplate template usually contains the same controls and content as the ItemTemplate template, but with a different appearance to distinguish items.

To specify the custom template declaratively, add an AlternatingItemTemplate element inside the ListView control. Then add controls and content between the opening and closing <AlternatingItemTemplate> tags. To display the field values from the data source, use a data-binding expression. For more information, see Data-Binding Expressions Overview.

To create buttons that automatically select, delete, and edit operations, add a button control to the template. Set its CommandName property to one of the values listed in the following table.

Button type	CommandName value
Delete	"Delete"
Edit	"Edit"
Select	"Select"

Examples

The following example shows how to use the AlternatingItemTemplate template to define the style for alternating data items in a ListView control.

Visual Basic

<%@ Page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html  >
  <head id="Head1" runat="server">
    <title>ListView AlternatingItemTemplate Example</title>
    <style type="text/css">
        body   
        {
          font-size: 10pt;
            font-family: Trebuchet MS, Arial, Tahoma;
            text-align:center;
        }
        .item { background-color: #E0FFFF }
        .alternatingItem { background-color: #B0E0E6 }
    </style>
  </head>
  <body>
    <form id="form1" runat="server">

      <h3>ListView AlternatingItemTemplate Example</h3>

      <asp:ListView ID="VendorsListView" 
        DataSourceID="VendorsDataSource"
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" width="640px" id="tblVendors" runat="server">
            <tr runat="server">
              <th runat="server">ID</th>
              <th runat="server">Account Number</th>
              <th runat="server">Name</th>
              <th runat="server">Preferred Vendor</th>
            </tr>
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager ID="VendorsDataPager" runat="server" PageSize="15">
            <Fields>
              <asp:NumericPagerField ButtonCount="10" />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr class="item" runat="server">
            <td>
              <asp:Label ID="VendorIDLabel" runat="server" Text='<%# Eval("VendorID") %>' />
            </td>
            <td>
              <asp:Label ID="AccountNumberLabel" runat="server" Text='<%# Eval("AccountNumber") %>' />
            </td>
            <td>
              <asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
            </td>
            <td align="center">
              <asp:CheckBox ID="PreferredCheckBox" runat="server" Enabled="False"
                Checked='<%# Eval("PreferredVendorStatus") %>' />
            </td>
          </tr>
        </ItemTemplate>
        <AlternatingItemTemplate>
          <tr class="alternatingItem" runat="server">
            <td>
              <asp:Label ID="VendorIDLabel" runat="server" Text='<%# Eval("VendorID") %>' />
            </td>
            <td>
              <asp:Label ID="AccountNumberLabel" runat="server" Text='<%# Eval("AccountNumber") %>' />
            </td>
            <td>
              <asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
            </td>
            <td align="center">
              <asp:CheckBox ID="PreferredCheckBox" runat="server" Enabled="False"
                Checked='<%# Eval("PreferredVendorStatus") %>' />
            </td>
          </tr>
        </AlternatingItemTemplate>
      </asp:ListView>

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->
      <asp:SqlDataSource ID="VendorsDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT VendorID, AccountNumber, Name, PreferredVendorStatus 
          FROM Purchasing.Vendor WHERE (ActiveFlag = 1)" >
      </asp:SqlDataSource>
    </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  >
  <head id="Head1" runat="server">
    <title>ListView AlternatingItemTemplate Example</title>
    <style type="text/css">
        body   
        {
          font-size: 10pt;
            font-family: Trebuchet MS, Arial, Tahoma;
            text-align:center;
        }
        .item { background-color: #E0FFFF }
        .alternatingItem { background-color: #B0E0E6 }
    </style>
  </head>
  <body>
    <form id="form1" runat="server">

      <h3>ListView AlternatingItemTemplate Example</h3>

      <asp:ListView ID="VendorsListView" 
        DataSourceID="VendorsDataSource"
        runat="server">
        <LayoutTemplate>
          <table cellpadding="2" width="640px" id="tblVendors" runat="server">
            <tr runat="server">
              <th runat="server">ID</th>
              <th runat="server">Account Number</th>
              <th runat="server">Name</th>
              <th runat="server">Preferred Vendor</th>
            </tr>
            <tr runat="server" id="itemPlaceholder" />
          </table>
          <asp:DataPager ID="VendorsDataPager" runat="server" PageSize="15">
            <Fields>
              <asp:NumericPagerField ButtonCount="10" />
            </Fields>
          </asp:DataPager>
        </LayoutTemplate>
        <ItemTemplate>
          <tr class="item" runat="server">
            <td>
              <asp:Label ID="VendorIDLabel" runat="server" Text='<%# Eval("VendorID") %>' />
            </td>
            <td>
              <asp:Label ID="AccountNumberLabel" runat="server" Text='<%# Eval("AccountNumber") %>' />
            </td>
            <td>
              <asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
            </td>
            <td align="center">
              <asp:CheckBox ID="PreferredCheckBox" runat="server" Enabled="False"
                Checked='<%# Eval("PreferredVendorStatus") %>' />
            </td>
          </tr>
        </ItemTemplate>
        <AlternatingItemTemplate>
          <tr class="alternatingItem" runat="server">
            <td>
              <asp:Label ID="VendorIDLabel" runat="server" Text='<%# Eval("VendorID") %>' />
            </td>
            <td>
              <asp:Label ID="AccountNumberLabel" runat="server" Text='<%# Eval("AccountNumber") %>' />
            </td>
            <td>
              <asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
            </td>
            <td align="center">
              <asp:CheckBox ID="PreferredCheckBox" runat="server" Enabled="False"
                Checked='<%# Eval("PreferredVendorStatus") %>' />
            </td>
          </tr>
        </AlternatingItemTemplate>
      </asp:ListView>

      <!-- This example uses Microsoft SQL Server and connects      -->
      <!-- to the AdventureWorks sample database. Use an ASP.NET    -->
      <!-- expression to retrieve the connection string value       -->
      <!-- from the Web.config file.                                -->
      <asp:SqlDataSource ID="VendorsDataSource" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AdventureWorks_DataConnectionString %>"
        SelectCommand="SELECT VendorID, AccountNumber, Name, PreferredVendorStatus 
          FROM Purchasing.Vendor WHERE (ActiveFlag = 1)" >
      </asp:SqlDataSource>
    </form>
  </body>
</html>

Platforms

Windows Vista, Windows XP SP2, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information