SeparatorStyle Property

DataList.SeparatorStyle Property

 

Gets the style properties of the separator between each item in the DataList control.

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

<PersistenceModeAttribute(PersistenceMode.InnerProperty)>
Public Overridable ReadOnly Property SeparatorStyle As TableItemStyle

Property Value

Type: System.Web.UI.WebControls.TableItemStyle

A TableItemStyle object that contains the style properties of the separator between each item in the DataList control. The default value is an empty TableItemStyle object.

Use the SeparatorStyle property to provide a custom style for the separator between each item in the DataList control. The separator allows you to place an element with custom content between each item in the DataList control. Common style attributes that can be adjusted include foreground color, background color, font, and content alignment within the cell. Providing a different style enhances the appearance of the DataList control.

To specify a custom style for the separator, place the <SeparatorStyle> tags between the opening and closing tags of the DataList control. You can then list the style attributes within the opening <SeparatorStyle> tag.

The following code example demonstrates how to use the SeparatorStyle property to specify a custom background color for 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
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