我写下面的代码来打开txt文件
private void button1_Click(object sender, EventArgs e)
{
try
{
OpenFileDialog reader = new OpenFileDialog();
reader.Filter = "txt files (*.txt)|*.txt";
// reader.Title = "";
reader.ShowDialog();
rtb1.LoadFile(reader.FileName);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}
但此代码给出以下错误:
错误:
文件格式无效