DataList.FooterTemplate Property
Gets or sets the template for the footer section of the DataList control.
Assembly: System.Web (in System.Web.dll)
<BrowsableAttribute(False)> <PersistenceModeAttribute(PersistenceMode.InnerProperty)> <TemplateContainerAttribute(GetType(DataListItem))> Public Overridable Property FooterTemplate As ITemplate
Property Value
Type: System.Web.UI.ITemplateA System.Web.UI.ITemplate object that contains the template for the footer section of the DataList control. The default value is null.
Use the FooterTemplate property to control the contents of the footer section. The appearance of the footer section is controlled by the FooterStyle property.
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The ShowFooter property must be set to true for this property to be visible. |
The HeaderStyle property of the DataList control inherits the style settings of the ControlStyle property. For example, if you specify a red font for the ControlStyle property, the HeaderStyle property will also have a red font. This allows you to provide a common appearance for the control by setting a single style property. You can override the inherited style settings by setting the HeaderStyle property. For example, you can specify a blue font for the HeaderStyle property, overriding the red font specified in the ControlStyle property.
To specify a template for the footer section, place the <FooterTemplate> tags between the opening and closing tags of the DataList control. You can then list the contents of the template between the opening and closing <FooterTemplate> tags.
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This control can be used to display user input, which might include malicious client script. Check any information that is sent from a client for executable script, SQL statements, or other code before displaying it in your application. You can use validation controls to verify user input before displaying the input text in a control. ASP.NET provides an input request validation feature to block script and HTML in user input. For more information, see Securing Standard Controls, How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings, and Validating User Input in ASP.NET Web Pages. |
The following code example demonstrates how to use the FooterTemplate property to control the contents of the footer section of the DataList control.
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The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model. |
<%@ Page Language="VB" AutoEventWireup="True" %> <%@ Import Namespace="System.Data" %> <!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" > <script runat="server"> Function CreateDataSource() As ICollection ' Create sample data for the DataList control. Dim dt As DataTable = New DataTable() dim dr As DataRow ' Define the columns of the table. dt.Columns.Add(New DataColumn("IntegerValue", GetType(Int32))) dt.Columns.Add(New DataColumn("StringValue", GetType(String))) dt.Columns.Add(New DataColumn("CurrencyValue", GetType(Double))) dt.Columns.Add(New DataColumn("ImageValue", GetType(String))) ' Populate the table with sample values. Dim i As Integer For i = 0 To 8 dr = dt.NewRow() dr(0) = i dr(1) = "Description for item " & i.ToString() dr(2) = 1.23 * (i + 1) dr(3) = "Image" & i.ToString() & ".jpg" dt.Rows.Add(dr) Next i Dim dv As DataView = New DataView(dt) Return dv End Function Sub Page_Load(sender As Object, e As EventArgs) ' Load sample data only once, when the page is first loaded. If Not IsPostBack Then ItemsList.DataSource = CreateDataSource() ItemsList.DataBind() End If End Sub Sub Selection_Change(sender As Object, e As EventArgs) ' Set the background color for the heading and footer sections ' of the DataList control. ItemsList.HeaderStyle.BackColor = _ System.Drawing.Color.FromName(List.SelectedItem.Value) ItemsList.FooterStyle.BackColor = _ System.Drawing.Color.FromName(List.SelectedItem.Value) End Sub </script> <head runat="server"> <title>DataList HeaderStyle and FooterStyle Example</title> </head> <body> <form id="form1" runat="server"> <h3>DataList HeaderStyle and FooterStyle Example</h3> Select a background color for the header and footer sections. <br /><br /> <asp:DataList id="ItemsList" BorderColor="black" CellPadding="5" CellSpacing="5" RepeatDirection="Vertical" RepeatLayout="Table" RepeatColumns="3" ShowFooter="True" runat="server"> <HeaderStyle BackColor="White"> </HeaderStyle> <FooterStyle BackColor="White"> </FooterStyle> <AlternatingItemStyle BackColor="Gainsboro"> </AlternatingItemStyle> <HeaderTemplate> List of items </HeaderTemplate> <FooterTemplate> <asp:Image id="FooterImage" ImageUrl='FooterImage.jpg' GenerateEmptyAlternateText='true' runat="server"/> </FooterTemplate> <ItemTemplate> Description: <br /> <%# DataBinder.Eval(Container.DataItem, "StringValue") %> <br /> Price: <%# DataBinder.Eval(Container.DataItem, "CurrencyValue", "{0:c}") %> <br /> <asp:Image id="ProductImage" AlternatingText='<%# DataBinder.Eval(Container.DataItem, "StringValue") %>' ImageUrl='<%# DataBinder.Eval(Container.DataItem, "ImageValue") %>' runat="server"/> </ItemTemplate> </asp:DataList> <hr /> Header and footer BackColor: <br /> <asp:DropDownList id="List" AutoPostBack="True" OnSelectedIndexChanged="Selection_Change" runat="server"> <asp:ListItem Selected="True" Value="White"> White </asp:ListItem> <asp:ListItem Value="Silver"> Silver </asp:ListItem> <asp:ListItem Value="DarkGray"> Dark Gray </asp:ListItem> <asp:ListItem Value="Khaki"> Khaki </asp:ListItem> <asp:ListItem Value="DarkKhaki"> Dark Khaki </asp:ListItem> </asp:DropDownList> </form> </body> </html>
Available since 1.1
FooterStyle
ShowFooter
System.Web.UI.ITemplate
DataList Class
System.Web.UI.WebControls Namespace
DataList Web Server Control Overview
Securing Standard Controls
How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings
Validating User Input in ASP.NET Web Pages
ASP.NET Web Forms Page Code Model

