Question

在visual studio 2005 C#里面怎么写这段程序

在visual studio 2005 C#里面怎么写这段程序
System.IO.StreamReader sr = new System.IO.StreamReader(@"c:\a.txt");
this.textBox2.Text = sr.ReadToEnd();

这里我只能打开a.txt 要怎么样才能打开任意 .txt文件呢

Answer 1

OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "文本文件|*.txt";
if (ofd.ShowDialog() == DialogResult.OK)
{
System.IO.StreamReader sr = new System.IO.StreamReader(ofd.FileName);
this.textBox2.Text = sr.ReadToEnd();
}