调试的时候出现这个错误：“命名空间不直接包含诸如字段或方法之类的成员”，请各位大侠帮帮忙,告诉我原因！

Question

调试的时候出现这个错误：“命名空间不直接包含诸如字段或方法之类的成员”，请各位大侠帮帮忙,告诉可能错在哪里？

Answer 1

using System;
using System.Windows.Forms;
using System.Drawing;
class an:Form
{
public an():base()
{
Text="范例";
Button openBtn=new Button();
openBtn.Text="打开文件";
openBtn.Location=new Point(50,70);
openBtn.Click+=new EventHandler(this.openFileEH);
Controls.Add(openBtn);
}
public static void Main()
{
Application.Run(new an());}
}
protected void openFileEH(object sender,System.EventArgs e)
{
OpenFileDialog meOpenFileDialog=new OpenFileDialog();
myOpenFileDialog.InitialDirectory="C:\\";
myOpenFileDialog.Filter="wenbenwenjian(*.txt)|*.txt|qitawenjian(*.*)|*.*";
myOpenFileDialog.ShowReadOnly=true;
if(myOpenFileDialog.ShowDialog()==DialogResult.OK)
{
if(myOpenFileDialog.FileName!=null)
{Text=myOpenFileDialog.FileName;
}
}
}
问题出在protected那里阿

Answer 2

using System;
using System.Windows.Forms;
using System.Drawing;
class an:Form
{
public an():base()
{
Text="范例";
Button openBtn=new Button();
openBtn.Text="打开文件";
openBtn.Location=new Point(50,70);
openBtn.Click+=new EventHandler(this.openFileEH);
Controls.Add(openBtn);
}
public static void Main()
{
Application.Run(new an());}protected void openFileEH(object sender,System.EventArgs e)
{
OpenFileDialog meOpenFileDialog=new OpenFileDialog();
myOpenFileDialog.InitialDirectory="C:\\";
myOpenFileDialog.Filter="wenbenwenjian(*.txt)|*.txt|qitawenjian(*.*)|*.*";
myOpenFileDialog.ShowReadOnly=true;
if(myOpenFileDialog.ShowDialog()==DialogResult.OK)
{
if(myOpenFileDialog.FileName!=null)
{Text=myOpenFileDialog.FileName;
}
}
}}protected的这段代码要放到
class an:Form
{
... ...
}
中。