ASP.NET动态添加用户控件的方法

本文实例讲述了asp.net动态添加用户控件的方法。分享给大家供大家参考。具体实现方法如下：

为了让用户控件能asp.net页面实现动态添加，首先写一个接口igetucable,这个接口有一个函数，返回对象类型是usercontrol.

using system;
using system.collections.generic;
using system.linq;
using system.web;
using system.web.ui;
/// <summary>
/// summary description for igetucable
/// </summary>
namespace insus.net
{
public interface igetucable
{
 usercontrol getuc();
}
}

有了接口之后，需要创建用户控件calculator.ascx:

<%@ control language="c#" autoeventwireup="true" codefile="calculator.ascx.cs" inherits="calculator" %>
number a: <asp:textbox id="textbox1" runat="server"></asp:textbox> <br />
+ <br />
number b: <asp:textbox id="textbox2" runat="server"></asp:textbox><br />
<asp:button id="buttonequal" runat="server" text="="
onclick="buttonequal_click1" />
<br />
result: <asp:label id="labelresult" runat="server" text=""></asp:label>

calculator.ascx.cs,cs实现接口：

using system;
using system.collections.generic;
using system.linq;
using system.web;
using system.web.ui;
using system.web.ui.webcontrols;
using insus.net;
public partial class calculator : system.web.ui.usercontrol,igetucable
{
 protected void page_load(object sender, eventargs e)
 {
 }
 protected void buttonequal_click1(object sender, eventargs e)
 {
 decimal a = decimal.parse(this.textbox1.text.trim());
 decimal b = decimal.parse(this.textbox2.text.trim());
 this.labelresult.text = (a + b)。tostring ();
 }
 public usercontrol getuc()
 {
 return this;
 }
}

最后是在需要加载用户控件的aspx的page_load事件写：

protected void page_load(object sender, eventargs e)
{
 igetucable uc1 = (igetucable)loadcontrol("~/calculator.ascx");
 this.form1.controls.add(uc1.getuc());
}

希望本文所述对大家的asp.net程序设计有所帮助。