Adding a Web Control Library to a Web page : Extends WebControl « Custom Controls « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. Custom Controls
  3. Extends WebControl
<%@ Register Assembly="ClassLibrary1" Namespace="ClassLibrary1" TagPrefix="cc1" %>

<!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 id="Head1" runat="server">
    <title>Adding a Custom Web Control</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <cc1:WebCustomControl1 ID="WebCustomControl1_1" runat="server" />
    </div>
    </form>
</body>
</html>

File: WebCustomControl1_1.cs

Imports System.ComponentModel
Imports System.Web.UI

<DefaultProperty("Text"), _
 ToolboxData("<{0}:WebCustomControl1 runat=server></{0}:WebCustomControl1>")> 
Public Class WebCustomControl1
    Inherits System.Web.UI.WebControls.WebControl

    Dim _text As String

    <Bindable(True), Category("Appearance"), DefaultValue("")> _
    Property [Text]() As String
        Get
            Return _text
        End Get

        Set(ByVal Value As String)
            _text = Value
        End Set
    End Property

    Protected Overrides Sub Render(ByVal output As System.Web.UI.HtmlTextWriter)
        output.Write([Text])
    End Sub

End Class








14.23.Extends WebControl
14.23.1.The Visual Studio Web Control Library class template (C#)
14.23.2.The Visual Studio Web Control Library class template (VB)
14.23.3.Adding a Web Control Library to a Web page
14.23.4.Using the HtmlTextWriter to render an HTML tag (C#)
14.23.5.Using the HtmlTextWriter to render an HTML tag (VB)
14.23.6.Using the HtmlTextWriter to render multiple HTML tags (C#)
14.23.7.Using the HtmlTextWriter to render multiple HTML tags (VB)
14.23.8.Rendering HTML tag attributes (C#)
14.23.9.Rendering HTML tag attributes (VB)