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.
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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();
}
}
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有了接口之后,需要创建用户控件Calculator.ascx:
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<%@ 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>
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Calculator.ascx.cs,cs实现接口:
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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 ;
}
}
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最后是在需要加载用户控件的aspx的Page_load事件写:
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protected void Page_Load( object sender, EventArgs e)
{
IGetUCable uc1 = (IGetUCable)LoadControl( "~/Calculator.ascx" );
this .form1.Controls.Add(uc1.GetUC());
}
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希望本文所述对大家的asp.net程序设计有所帮助。