问题描述
I created a code to dynamically create button control, it worked in the .aspx and aspx.cs file, but when I separated the code in a separate class file the project would not compile
我尝试过:
我创建了一个动态创建按钮控件的代码,它在.aspx和aspx.cs文件中工作,但是当我在单独的类文件中分离代码时,项目将无法编译。下面是在页面加载时在aspx和aspx.cs文件中起作用的代码:
Aspx代码:< asp:PlaceHolder ID =PlaceHolder1runat =server >
代码背后:
按钮按钮=新按钮();
button.Text = 测试;
PlaceHolder1.Controls.Add(按钮);
button.Click + = delegate
{
//在这里输入你的代码
};
但是当我在类文件中将它分隔为下面的代码时,它将无法编译但显示错误CS0103:当前上下文中不存在名称'PlaceHolder1'。
使用System;
使用System.Collections.Generic;
使用System.Linq;
使用System.Web;
使用System.Web.UI;
使用System.Data;
使用System.Data.SqlClient;
使用System .Web.UI.WebC ontrols;
命名空间Default.App_Code
{
公共类CreateButtonClass
{
public CreateButtonClass()
{
}
public void CreateTestButton ()
{
按钮按钮=新按钮();
button.Text =测试;
PlaceHolder1.Controls.Add(按钮);
button.Click + = delegate
{
/ /在这里做你的代码
};
}
我的问题是,如何安排代码所以我将编译并调用该方法?
What I have tried:
I created a code to dynamically create button control, it worked in the .aspx and aspx.cs file, but when I separated the code in a separate class file the project would not compile. Below is the code that worked in aspx and aspx.cs file on page load:
Aspx code: <asp:PlaceHolder ID="PlaceHolder1" runat="server">
Code behind:
Button button = new Button();
button.Text = "Test";
PlaceHolder1.Controls.Add(button);
button.Click += delegate
{
//Do your code here
};
But when I separated it in class file as code below, it will not compile but show error that says "CS0103: The name 'PlaceHolder1' does not exist in the current context.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
namespace Default.App_Code
{
public class CreateButtonClass
{
public CreateButtonClass()
{
}
public void CreateTestButton()
{
Button button = new Button();
button.Text = "Test";
PlaceHolder1.Controls.Add(button);
button.Click += delegate
{
//Do your code here
};
}
My question is, how do I arrange the code so that I will compile and call the method?
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