Question

这里面那个 OpenFileDialog1.InitialDirectory出错，下面的也是，应该怎么改？

private void 打开文件ToolStripMenuItem_Click(object sender,EventArgs e)
{
OpenFileDialog1.InitialDirectory = "C:\\";
OpenFileDialog1.Filter = "text文件（*.text）|*.text|rtf文件（*rtf）|*rtf|All files(*.*)|*.*";
OpenFileDialog1.FilterIndex = 2;
if (OpenFileDialog1.ShowDialog() == DialogResult.OK)
{
Child1 = (Form2)this.ActivateMdiChild;//获取当前活动的窗口
if (Child1 ==null )
{
新建文件NToolStripMenuItem_Click(null, null);
Child1 = (Form2)this.ActivateMdiChild;
}
Child1.getRichTextBox().LoadFile(OpenFileDialog1.FileName);
Child1.Text = OpenFileDialog1.FileName;
}
}
每个OpenFileDialog1出错，如果没有1也是出错

Answer 1

1.
ctrl+t,添加 microsoft Common dialogue control,勾上,

2.
添加刚才工具箱里多出来的commondialogue到form上

3.
需要打开的时候,用下面的代码,显示打开文件对话框
CommonDialog1.ShowOpen