在Windows 7中无法打开OpenFileDialog [英] OpenFileDialog does not open in Windows 7

问题描述

我在Windows XP上使用Visual Studio 2008，问题是我试图打开一个文件对话框以选择一个文件，在WinXP上这可以正常工作，但在Windows7上却没有显示文件对话框.这是我的代码

I am using Visual Studio 2008 on Windows XP, the problem is that I am trying to open a file dialog box to select a file, and on WinXP this works fine but on Windows7 the file dialog does not show. This is my code

OpenFileDialog FD = new OpenFileDialog();

FD.Title = "Images";
                   FD.Filter = "Png Images| *.png";
                   FD.ShowDialog();
                   if (FD.FileName.ToString() != "")
                   {
                       pngImage.ImageLocation = FD.SafeFileName.ToString();
                       img = new Bitmap(FD.SafeFileName.ToString());
                   }//end if

推荐答案

该代码在哪里调用?是在Form_Load或Form_Shown事件中的某个位置-在某些情况下，不会显示在那里引发的异常.
您可以逐步调试程序直到ShowDialog()调用吗?

Where is that code called? Is it somewhere in a Form_Load or Form_Shown event - under some circumstances, exceptions thrown there are not shown.
Can you debug the program step by step downto the ShowDialog() call?

OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "c:\\";
openFileDialog1.Filter = "All files (*.*)|*.*";
openFileDialog1.FilterIndex = 1;
openFileDialog1.RestoreDirectory = true;

if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
  //openFileDialog1.FileName
}

这个在win7中对我有用

This one works for me in win7

FD.FileOk += new CancelEventHandler(openFileDialog1_FileOk);

private void openFileDialog1_FileOk(object sender, 
		System.ComponentModel.CancelEventArgs e)
{
 if (FD.FileName.ToString() != "")
                    {
                        pngImage.ImageLocation = FD.SafeFileName.ToString();
                        img = new Bitmap(FD.SafeFileName.ToString());
                    }//end if
}

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