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;
}
}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());
}