Your own data binding control : WebControl « Custom Controls « ASP.NET Tutorial






File: Article.cs

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace myControls
{
    public class Article : CompositeControl
    {

        private string _title;
        private string _author;
        private string _contents;
        private ITemplate _itemTemplate;

        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }

        public string Author
        {
            get { return _author; }
            set { _author = value; }
        }

        public string Contents
        {
            get { return _contents; }
            set { _contents = value; }
        }

        [TemplateContainer(typeof(Article))]
        [PersistenceMode(PersistenceMode.InnerProperty)]
        public ITemplate ItemTemplate
        {
            get { return _itemTemplate; }
            set { _itemTemplate = value; }
        }

        protected override void CreateChildControls()
        {
            _itemTemplate.InstantiateIn(this);
        }
    }

}

            

File: Default.aspx

<%@ Page Language="C#" %>
<%@ Register TagPrefix="custom" Namespace="myControls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    void Page_Load()
    {
        Article1.Title = "your title";
        Article1.Author = "your name";
        Article1.Contents = "Blah, blah, blah, blah...";
        Article1.DataBind();
    }

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Show Article</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <custom:Article
        id="Article1"
        Runat="server">
        <ItemTemplate>
        <h1><%# Container.Title %></h1>
        <em>By <%# Container.Author %></em>
        <br /><br />
        <%# Container.Contents %>
        </ItemTemplate>
    </custom:Article>
    </div>
    </form>
</body>
</html>








14.19.WebControl
14.19.1.A control that inherits from the WebControl class.
14.19.2.Displaying a table of HTML colors.
14.19.3.File: DropShadow.cs
14.19.4.Specifying the Containing WebControl Tag
14.19.5.View State and Control State
14.19.6.Supporting Control State
14.19.7.Processing Postback Data and Events
14.19.8.Handling Postback Events
14.19.9.contains the custom pager control.
14.19.10.Using Postback Options
14.19.11.Working with Control Property Collections
14.19.12.Using a ControlBuilder
14.19.13.Applying Design-Time Attributes to a Control
14.19.14.Creating a Container ControlDesigner
14.19.15.You can add your own Smart Tasks to a custom control by inheriting a new class from the base DesignerActionList class.
14.19.16.Your own data binding control