本文實(shí)例講述了ASP.NET動(dòng)態(tài)添加用戶控件的方法。分享給大家供大家參考。具體實(shí)現(xiàn)方法如下：
為了讓用戶控件能ASP.NET頁(yè)面實(shí)現(xiàn)動(dòng)態(tài)添加，首先寫一個(gè)接口IGetUCable,這個(gè)接口有一個(gè)函數(shù)，返回對(duì)象類型是UserControl.
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
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?jiǎng)?chuàng)建用戶控件Calculator.ascx:
|
1
2
3
4
5
6
7
8
|
<%@ 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實(shí)現(xiàn)接口：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
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; }} |
最后是在需要加載用戶控件的aspx的Page_load事件寫：
|
1
2
3
4
5
|
protected void Page_Load(object sender, EventArgs e){ IGetUCable uc1 = (IGetUCable)LoadControl("~/Calculator.ascx"); this.form1.Controls.Add(uc1.GetUC());} |
希望本文所述對(duì)大家的asp.net程序設(shè)計(jì)有所幫助。
