Example





In This Topic
GdPicture14.WPF Namespace / GdViewer Class / CloseDocument() Method

CloseDocument() Method

In This Topic
Closes the currently displayed document and clears the GdViewer control.

The DocumentClosed event is raised at the end after the document has been successfully closed.

Syntax
'Declaration

 


Public Sub CloseDocument() 
public void CloseDocument()
public procedure CloseDocument(); 
public function CloseDocument();
public: void CloseDocument(); 
public:

void CloseDocument();
Remarks
Just to remind you that the DocumentClosed event is raised using this method.
Example
How to close the currently displayed document with clearing the viewer. 
'We assume that the GdViewer1 control has been properly integrated.

Using dialog As System.Windows.Forms.FolderBrowserDialog = New System.Windows.Forms.FolderBrowserDialog()

    dialog.Description = "Select the folder you want to open your files from."

    dialog.ShowNewFolderButton = False

    dialog.RootFolder = Environment.SpecialFolder.Desktop

    If dialog.ShowDialog() = System.Windows.Forms.DialogResult.OK Then

        Dim folder As String = dialog.SelectedPath

        Dim fileName As String = ""

        For Each fName As String In System.IO.Directory.GetFiles(folder, "*.*", System.IO.SearchOption.TopDirectoryOnly)

            If GdViewer1.DisplayFromFile(fName) = GdPictureStatus.OK Then

                Dim result As MessageBoxResult = MessageBox.Show("Next file?", "GdViewer.CloseDocument", MessageBoxButton.YesNo)

                If result = MessageBoxResult.No Then

                    fileName = fName

                    Exit For

                Else

                    GdViewer1.CloseDocument()

                End If

            End If

        Next

        'Do your stuff with fileName.

    End If

End Using
//We assume that the GdViewer1 control has been properly integrated.

using (System.Windows.Forms.FolderBrowserDialog dialog = new System.Windows.Forms.FolderBrowserDialog())

{

    dialog.Description = "Select the folder you want to open your files from.";

    dialog.ShowNewFolderButton = false;

    dialog.RootFolder = Environment.SpecialFolder.Desktop;

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

    {

        string folder = dialog.SelectedPath;

        string fileName = "";

        foreach (string fName in System.IO.Directory.GetFiles(folder, "*.*", System.IO.SearchOption.TopDirectoryOnly))

        {

            if (GdViewer1.DisplayFromFile(fName) == GdPictureStatus.OK)

            {

                MessageBoxResult result = MessageBox.Show("Next file?", "GdViewer.CloseDocument", MessageBoxButton.YesNo);

                if (result == MessageBoxResult.No)

                {

                    fileName = fName;

                    break;

                }

                else

                {

                    GdViewer1.CloseDocument();

                }

            }

        }

        //Do your stuff with fileName.

    }

}
See Also

Reference

GdViewer Class
GdViewer Members
Clear Method
Redraw Method
Dispose Method