OpenFileDialog.ShowReadOnly Property

Gets or sets a value indicating whether the dialog box contains a read-only check box.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public:
property bool ShowReadOnly {
	bool get ();
	void set (bool value);
}
/** @property */
public boolean get_ShowReadOnly ()

/** @property */
public void set_ShowReadOnly (boolean value)

public function get ShowReadOnly () : boolean

public function set ShowReadOnly (value : boolean)

Not applicable.

Property Value

true if the dialog box contains a read-only check box; otherwise, false. The default value is false.

The following code example demonstrates the use of the ShowReadOnly property. This example displays the OpenFileDialog box with the ShowReadOnly property set to true. If the user clicks the option to open the file in read-only mode, the OpenFile method is used to open the file. Otherwise, the FileStream class is used to open the file in read/write mode.

private:
   FileStream^ OpenFile()
   {
      // Displays an OpenFileDialog and shows the read/only files.
      OpenFileDialog^ dlgOpenFile = gcnew OpenFileDialog;
      dlgOpenFile->ShowReadOnly = true;
      if ( dlgOpenFile->ShowDialog() == ::DialogResult::OK )
      {
         // If ReadOnlyChecked is true, uses the OpenFile method to
         // open the file with read/only access.
         if ( dlgOpenFile->ReadOnlyChecked == true )
         {
            return dynamic_cast<FileStream^>(dlgOpenFile->OpenFile());
         }
         // Otherwise, opens the file with read/write access.
         else
         {
            String^ path = dlgOpenFile->FileName;
            return gcnew FileStream( path,System::IO::FileMode::Open,System::IO::FileAccess::ReadWrite );
         }
      }

      return nullptr;
   }

private FileStream OpenFile()
{
    // Displays an OpenFileDialog and shows the read/only files.
    OpenFileDialog dlgOpenFile = new OpenFileDialog();
    dlgOpenFile.set_ShowReadOnly(true);
    if (dlgOpenFile.ShowDialog().Equals(get_DialogResult().OK)) {
        // If ReadOnlyChecked is true, uses the OpenFile method to
        // open the file with read/only access.
        if (dlgOpenFile.get_ReadOnlyChecked() == true) {
            return (FileStream)dlgOpenFile.OpenFile();
        }
        // Otherwise, opens the file with read/write access.
        else {
            String path = dlgOpenFile.get_FileName();
            return new FileStream(path, System.IO.FileMode.Open,
                System.IO.FileAccess.ReadWrite);
        }
    }
    return null;
} //OpenFile 

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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