Single value binding : DataBinding Expressions « Data Binding « ASP.NET Tutorial






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  2. Data Binding
  3. DataBinding Expressions
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="SingleValueBinding" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:Image runat="server" ImageUrl='<%# FilePath %>' ID="Image1"/><br>
      <asp:Label runat="server" Text='<%# FilePath %>' ID="Label1"/><br>
      <asp:TextBox runat="server" Text='<%# GetFilePath() %>' ID="Textbox1"/><br>
      <asp:HyperLink runat="server" NavigateUrl='<%# LogoPath.Value %>' 
        Font-Bold="True" Text="Show logo" ID="Hyperlink1"/><br>
      <input type="hidden" runat="server" ID="LogoPath" value="apress.gif" NAME="LogoPath">
      <b>
        <%# FilePath %>
      </b>
      <br>
      <img src="<%# GetFilePath() %>">
    </div>
    </form>
</body>
</html>

File: Default.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class SingleValueBinding : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    this.DataBind();
    }
  protected string GetFilePath()
  {
    return "http://www.java2s.com/style/logo.png";
  }

  protected string FilePath
  {
    get { return "http://www.java2s.com/style/logo.png"; }
  }
}








19.7.DataBinding Expressions
19.7.1.Understanding Templates and DataBinding Expressions
19.7.2.A template can contain other controls
19.7.3.Call other methods than the Eval() method in a DataBinding expression
19.7.4.Single value binding
19.7.5.Repeated Value Binding