C# 动态创建控件

 1 private TextBox Txt;      
 2      
 3     protected void Page_Load(object sender, EventArgs e)      
 4      
 5     {      
 6      
 7         Create();      
 8      
 9     }      
10      
11     private void Create()      
12      
13     {      
14      
15         Button Btn = new Button();      
16      
17         Btn.ID = "MyBtn";      
18      
19         Btn.Text = "显示";      
20      
21         Btn.CommandArgument = "MyBtn";      
22      
23         Btn.Command += new CommandEventHandler(this.MyBtn_Command);      
24      
25         this.Txt = new TextBox();      
26      
27         this.Txt.ID = "MyTxt";      
28      
29         this.FindControl("form1").Controls.Add(Btn);      
30      
31         this.FindControl("form1").Controls.Add(Txt);      
32      
33 //这里还可以写成：Page.Form.Controls.Add(Txt);      
34      
35     }      
36      
37     public void MyBtn_Command(object sender, CommandEventArgs e)      
38      
39     {      
40      
41         if (e.CommandArgument.ToString() == "MyBtn")      
42      
43             Response.Write(Txt.Text);      
44     } 

下面是转贴的

 

 1     using System;       
 2     using System.Data;       
 3     using System.Configuration;       
 4     using System.Collections;       
 5     using System.Web;       
 6     using System.Web.Security;       
 7     using System.Web.UI;       
 8     using System.Web.UI.WebControls;       
 9     using System.Web.UI.WebControls.WebParts;       
10     using System.Web.UI.HtmlControls;       
11            
12     public partial class Test : System.Web.UI.Page       
13     {       
14      protected void Page_Load(object sender, EventArgs e)       
15      {       
16      //动态创建文本框控件       
17      TextBox txt = new TextBox();       
18      txt.ID = "txtTest";       
19            
20      //加入到WEB窗体中       
21      Page.Form.Controls.Add(txt);       
22            
23      //动态创建按钮控件       
24      Button btn = new Button();       
25      btn.ID = "btnTest";       
26      btn.Text = "提交";       
27            
28      //为按钮动态添加事件       
29      btn.Click += new EventHandler(btnTest_Click);       
30            
31      //加入到WEB窗体中       
32      Page.Form.Controls.Add(btn);       
33      }       
34      //为动态创建的按钮事件写一个方法       
35      protected void btnTest_Click(object sender, EventArgs e)       
36      {       
37      //获取在WEB窗体中动态创建的文本框控件       
38      TextBox txt = new TextBox();       
39      txt = Page.Form.FindControl("txtTest") as TextBox;       
40            
41      //输出在WEB窗体中动态创建的文本框控件的值       
42      Response.Write(txt.Text);       
43      }       
44     }