SaveFileDialog.OpenFile Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Opens the file with read/write permission selected by the user.
public:
System::IO::Stream ^ OpenFile();public System.IO.Stream OpenFile ();member this.OpenFile : unit -> System.IO.StreamPublic Function OpenFile () As StreamReturns
The read/write file selected by the user.
Examples
The following code example illustrates creating a SaveFileDialog, setting members, calling the dialog box using the ShowDialog method, and opening the selected file. The example requires a form with a button placed on it.
private:
void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
Stream^ myStream;
SaveFileDialog^ saveFileDialog1 = gcnew SaveFileDialog;
saveFileDialog1->Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
saveFileDialog1->FilterIndex = 2;
saveFileDialog1->RestoreDirectory = true;
if ( saveFileDialog1->ShowDialog() == ::DialogResult::OK )
{
if ( (myStream = saveFileDialog1->OpenFile()) != nullptr )
{
// Code to write the stream goes here.
myStream->Close();
}
}
}
private void button1_Click(object sender, System.EventArgs e)
{
Stream myStream ;
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ;
saveFileDialog1.FilterIndex = 2 ;
saveFileDialog1.RestoreDirectory = true ;
if(saveFileDialog1.ShowDialog() == DialogResult.OK)
{
if((myStream = saveFileDialog1.OpenFile()) != null)
{
// Code to write the stream goes here.
myStream.Close();
}
}
}
Private Sub button1_Click(sender As Object, e As System.EventArgs)
Dim myStream As Stream
Dim saveFileDialog1 As New SaveFileDialog()
saveFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"
saveFileDialog1.FilterIndex = 2
saveFileDialog1.RestoreDirectory = True
If saveFileDialog1.ShowDialog() = DialogResult.OK Then
myStream = saveFileDialog1.OpenFile()
If (myStream IsNot Nothing) Then
' Code to write the stream goes here.
myStream.Close()
End If
End If
End Sub
Remarks
Caution
For security purposes, this method creates a new file with the selected name and opens it with read/write permissions. This can cause unintentional loss of data if you select an existing file to save to. To save data to an existing file while retaining existing data, use the File class to open the file using the file name returned in the FileName property.
