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LinkButton.AddParsedSubObject أسلوب

Visual Studio 2010

يعرض عنصر تحكم زر نمط الارتباط تشعبي على صفحة ويب.ControlCollection

مساحة الاسم:  System.Web.UI.WebControls
التجميع:  System.Web (في System.Web.dll)

protected override void AddParsedSubObject(
	Object obj
)

المعلمات

obj
النوع: System.Object
This عنصر تحكم provides the same functionality كـ the ASP.NET mobile Object عنصر تحكم في .NET الإصدار إطار العمل 1.1.

The following code example demonstrates how to override the AddParsedSubObject method in a custom LinkButton server control so that it either sets the text property to the parsed object's text property, if the parsed object is a Literal object, or to an empty string otherwise.


<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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>
        <title>Custom LinkButton - AddParsedSubObject - C# Example</title>
    <script runat="server">
      void LinkButton1_Command(Object sender, CommandEventArgs e) 
      {
        // Redirect to the Microsoft home page.
        Response.Redirect("http://www.microsoft.com/");
      }
    </script>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom LinkButton - AddParsedSubObject - C# Example</h3>

            <aspSample:CustomLinkButtonAddParsedSubObject 
              id="LinkButton1" 
              runat="server" 
              OnCommand="LinkButton1_Command" 
              ToolTip="Microsoft Home">Microsoft Corp.
            </aspSample:CustomLinkButtonAddParsedSubObject>

        </form>
    </body>
</html>


...


using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomLinkButtonAddParsedSubObject : System.Web.UI.WebControls.LinkButton
    {
        protected override void AddParsedSubObject(object obj)
        {
            // If the server control contains any child controls.
            if (this.HasControls()) 
            {
                // Notify the base server control that an element, either XML or HTML, 
                // was parsed, and adds the element to the server control's 
                // ControlCollection object.
                base.AddParsedSubObject(obj);
            }
            else // Else the server control doesn't contain any child controls.
            {
                // If the parsed element is a LiteralControl.
                if (obj is System.Web.UI.LiteralControl) 
                {
                    // Set the server control's Text property to the parsed element's Text value.
                    this.Text = ((System.Web.UI.LiteralControl)obj).Text;
                }
                else // Else the parsed element is not a LiteralControl.
                {
                    // If the server control has a value in the the Text property.
                    string currentText = this.Text;
                    if (currentText.Length != 0) 
                    {
                        // Set the server control's Text property to an empty string.
                        this.Text = System.String.Empty;

                        // Notify the base server control that a new LiteralControl was parsed, 
                        // and adds the element to the server control's ControlCollection object.
                        base.AddParsedSubObject(new System.Web.UI.LiteralControl(currentText));
                    }
                    base.AddParsedSubObject(obj);
                }
            }
        }
    }
}


نظام التشغيل Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, الإصدار x64 من نظام التشغيل Windows XP Professional, Windows XP Starter Edition, Windows Server 2008, نظام التشغيل Windows Server 2003, نظام التشغيل Windows Server 2000 المزود بحزمة الخدمة SP4, نظام التشغيل Windows Millennium Edition, نظام التشغيل Windows 98

لا يدعم .NET Framework و .NET Compact Framework كافة الإصدارات الخاصة بكل نظام أساسي. للحصول على قائمة بالإصدارات المدعمة، راجع متطلبات النظام إطار عمل .NET.

.NET Framework

مدعوم في: 4, 3.5, 3.0, 2.0, 1.1, 1.0
إظهار: