专业实训9.10

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Microsoft.Win32.OpenFileDialog ofd = new Microsoft.Win32.OpenFileDialog();

ofd.DefaultExt = ".xml";

ofd.Filter = "xml file|*.xml";

if (ofd.ShowDialog() == true)

{

     //此处做你想做的事 ...=ofd.FileName;

}

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System.Windows.Forms.OpenFileDialog openFileDialog1 = new System.Windows.Forms.OpenFileDialog();

openFileDialog1.InitialDirectory = "c:\\";

openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";

openFileDialog1.FilterIndex = 2;

openFileDialog1.RestoreDirectory = true;

if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)

{

    //此处做你想做的事 ...=openFileDialog1.FileName;

}

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System.Windows.Forms.FolderBrowserDialog folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();

System.Windows.Forms.DialogResult result = folderBrowserDialog.ShowDialog();

if (result == System.Windows.Forms.DialogResult.OK)

{

    tb_FolderPath.Text = folderBrowserDialog.SelectedPath;

}

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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]

public class OpenFileName

{

    public int structSize = 0;

    public IntPtr hwnd = IntPtr.Zero;

    public IntPtr hinst = IntPtr.Zero;

    public string filter = null;

    public string custFilter = null;

    public int custFilterMax = 0;

    public int filterIndex = 0;

    public string file = null;

    public int maxFile = 0;

    public string fileTitle = null;

    public int maxFileTitle = 0;

    public string initialDir = null;

    public string title = null;

    public int flags = 0;

    public short fileOffset = 0;

    public short fileExtMax = 0;

    public string defExt = null;

    public int custData = 0;

    public IntPtr pHook = IntPtr.Zero;

    public string template = null;

}

public class LibWrap

{

    // Declare a managed prototype for the unmanaged function.

    [DllImport("Comdlg32.dll",SetLastError=true,ThrowOnUnmappableChar=true, CharSet = CharSet.Auto)]

    public static extern bool GetOpenFileName([In, Out] OpenFileName ofn);

}

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OpenFileName ofn = new OpenFileName();

ofn.structSize = Marshal.SizeOf(ofn);

ofn.filter = "Project files\0*.xml";

ofn.file = new string(new char[256]);

ofn.maxFile = ofn.file.Length;

ofn.fileTitle = new string(new char[64]);

ofn.maxFileTitle = ofn.fileTitle.Length;

ofn.initialDir = "C:\\";

ofn.title = "Open Project";

ofn.defExt = "xml";

ofn.structSize = Marshal.SizeOf(ofn);

if (LibWrap.GetOpenFileName(ofn))

{

    //此处做你想做的事 ...=ofn.file;

}