DataList.SeparatorTemplate Property

 

Gets or sets the template for the separator between the items of the DataList control.

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

<BrowsableAttribute(False)>
<PersistenceModeAttribute(PersistenceMode.InnerProperty)>
<TemplateContainerAttribute(GetType(DataListItem))>
Public Overridable Property SeparatorTemplate As ITemplate

Property Value

Type: System.Web.UI.ITemplate

A System.Web.UI.ITemplate that contains the template for the separator between items in the DataList control. The default value is null.

Use the SeparatorTemplate property to control the contents of the separator between the items of the DataList control. The separator allows you to place an element with custom content between each item in the DataList control. The appearance of the separator between the items of the DataList control is controlled by the SeparatorStyle property.

To specify a template for the separator, place the <SeparatorTemplate> 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 <SeparatorTemplate> tags.

System_CAPS_cautionCaution

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 ControlsHow 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 SeparatorTemplate property to control the contents of the separator between each item in the DataList control.

System_CAPS_noteNote

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 separator section of
         ' the DataList control.
         ItemsList.SeparatorStyle.BackColor = _
             System.Drawing.Color.FromName(ItemList.SelectedItem.Value)

      End Sub

   </script>

<head runat="server">
    <title>DataList SeparatorTemplate and SeparatorStyle Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>DataList SeparatorTemplate and SeparatorStyle Example</h3>

      Select a background color for the separator between 
      items in the DataList.

      <br /><br />

      <asp:DataList id="ItemsList"
           BorderColor="black"
           CellPadding="5"
           CellSpacing="5"
           RepeatDirection="Vertical"
           RepeatLayout="Table"
           RepeatColumns="3"
           ShowFooter="True"
           runat="server">

         <HeaderStyle BackColor="#aaaadd">
         </HeaderStyle>

         <ItemStyle BackColor="Silver">
         </ItemStyle>

         <AlternatingItemStyle BackColor="DarkGray">
         </AlternatingItemStyle>

         <SeparatorStyle BackColor="White">
         </SeparatorStyle>

         <HeaderTemplate>

            List of items

         </HeaderTemplate>

         <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>

         <SeparatorTemplate>

            <asp:Image id="SeparatorImage"
                 GenerateEmptyAlternateText='true' 
                 ImageUrl="SeparatorImage.jpg"
                 runat="server"/>

         </SeparatorTemplate>

      </asp:DataList>

      <hr />

      <table cellpadding="5">

         <tr>

            <td>

               Separator BackColor:

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="ItemList"
                    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>

            </td>

         </tr>

      </table>

   </form>

</body>
</html>

.NET Framework
Available since 1.1
Return to top
Show: