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BulletedList.DisplayMode Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets or sets the display mode of the list content in a BulletedList control.

C# 
public virtual System.Web.UI.WebControls.BulletedListDisplayMode DisplayMode { get; set; }

Property Value

BulletedListDisplayMode

One of the BulletedListDisplayMode values. The default is Text.

Exceptions

ArgumentOutOfRangeException

The specified type is not one of the BulletedListDisplayMode values.

Examples

The following code example demonstrates how to create a BulletedList control and set the DisplayMode property. A ListBox control is populated with the BulletedListDisplayMode enumeration values. The format of the list item content changes based on the display mode that the user selects from the list box.

ASP.NET (C#) 
<%@ Page Language="C#" %>

<!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 runat="server">
  <title>DisplayMode Example</title>
<script runat="server">
  
  void Index_Changed(object sender, System.EventArgs e)
  {

      // Change the message displayed, based on 
      // the display mode selected from the list box.
      if (DisplayModeListBox.SelectedIndex > -1)
      {
          Message1.Text = "You chose: " + DisplayModeListBox.SelectedItem.Text;
      }

      // Change the display mode, based on 
      // the mode selected from the list box.
      switch (DisplayModeListBox.SelectedIndex) 
    {
          case 0:
              ItemsBulletedList.DisplayMode = BulletedListDisplayMode.Text;
              Message2.Text = "";
              break;
          case 1:
              ItemsBulletedList.DisplayMode = BulletedListDisplayMode.HyperLink;
              // Opens a new browser window to display the page linked to.
              ItemsBulletedList.Target = "_blank";
              Message2.Text = "";
              break;
          case 2:
              ItemsBulletedList.DisplayMode = BulletedListDisplayMode.LinkButton;
              break;
          default:
              throw new Exception("You did not select a valid display mode.");
              break;
      }

  }

  void ItemsBulletedList_Click(object sender, System.Web.UI.WebControls.BulletedListEventArgs e)
  {

      // Change the message displayed, based on the index
      // of the bulletedlist list item that was clicked.
      switch (e.Index) 
    {
          case 0:
              Message2.Text = "You  clicked list item 1.";
              break;
          case 1:
              Message2.Text = "You  clicked list item 2.";
              break;
          case 2:
              Message2.Text = "You  clicked list item 3.";
              break;
          default:
              throw new Exception("You did not click a valid list item.");
              break;
      }

  }

</script>

</head>
<body>

  <h3>DisplayMode Example</h3>

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

    <h3>BulletedListDisplayMode Example</h3>

    <p>
    <asp:BulletedList id="ItemsBulletedList" 
      BulletStyle="Disc"
      DisplayMode="Text" 
      OnClick="ItemsBulletedList_Click"
      runat="server">    
      <asp:ListItem Value="http://www.cohowinery.com">Coho Winery</asp:ListItem>
      <asp:ListItem Value="http://www.contoso.com">Contoso, Ltd.</asp:ListItem>
      <asp:ListItem Value="http://www.tailspintoys.com">Tailspin Toys</asp:ListItem>
    </asp:BulletedList></p>

    <hr />

    <h4>Select from the list to change the display mode:</h4>
    <asp:ListBox id="DisplayModeListBox" 
      Rows="1"
      SelectionMode="Single"
      AutoPostBack="True"
      OnSelectedIndexChanged="Index_Changed"
      runat="server">
        <asp:ListItem>Text</asp:ListItem>
        <asp:ListItem>Hyperlink</asp:ListItem>
        <asp:ListItem>LinkButton</asp:ListItem>
    </asp:ListBox>

    <asp:Label id="Message1" 
      runat="server"
      AssociatedControlID="DisplayModeListBox"/><br /><br />

    <asp:Label id="Message2"
      runat="server"
      AssociatedControlID="DisplayModeListBox"/>

   </form>

</body>
</html>

Remarks

Use the DisplayMode property to specify the display behavior to apply to the content of list items in a BulletedList control. The DisplayMode property is set using one of the BulletedListDisplayMode enumeration values. The following table lists the possible values.

Value Displayed as
Text Text.
HyperLink Hyperlinks.
LinkButton Link buttons.

The HyperLink value allows you to display list content as hyperlinks. When clicked, a hyperlink navigates to a URL. Use the Value property to specify the URL that a hyperlink navigates to.

The LinkButton field allows you to display list content as links. Use the BulletedList.Click event to post back to the server when a link button is clicked.

The value of this property is stored in view state.

Applies to

Proizvod Verzije
.NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

See also