这是关于openfiledialog [英] this is about openfiledialog

问题描述

打开文件(只是诸如.jpg，.png，bmp之类的图像)的代码是什么?

what is the code for open a file (Just images such as .jpg, .png, bmp)?

推荐答案

请参见

See the OpenFileDialog.Filter[^] property.

myOpenFileDialog.Filter = "Bitmap Files (*.bmp)|*.bmp|All Files (*.*)|*.*";

如果您不确定可以打开哪些图像文件，则此处有代码可以为您找到:

If you aren''t sure what image files you can open, there is code here which will find out for you: A FileDialog.Filter generator for all supported images[^]

BTW: I don''t know who down voted you - it''s not a silly question - so I have compensated with a five.

您可以使用如下代码:

You can use a code like this:

private void button1_Click(object sender, System.EventArgs e)
{
    Stream myStream = null;
    OpenFileDialog openFileDialog1 = new OpenFileDialog();

    openFileDialog1.InitialDirectory = "c:\\" ;
    openFileDialog1.Filter = "txt files (*.jpg)|*.bmp|All files (*.*)|*.*" ;
    openFileDialog1.FilterIndex = 2 ;
    openFileDialog1.RestoreDirectory = true ;

    if(openFileDialog1.ShowDialog() == DialogResult.OK)
    {
        try
        {
            if ((myStream = openFileDialog1.OpenFile()) != null)
            {
                using (myStream)
                {
                    // Insert code to read the stream here.
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
        }
    }
}

希望对您有帮助...

Hope it''s helpful...

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