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

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Overloads 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.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
Using dialog As FolderBrowserDialog = New FolderBrowserDialog()
    dialog.Description = "Select the folder for opening your files."
    dialog.ShowNewFolderButton = False
    dialog.RootFolder = Environment.SpecialFolder.Desktop
    If dialog.ShowDialog() = DialogResult.OK Then
        Dim folder As String = dialog.SelectedPath
        Dim fileName As String = ""
        For Each fName As String In Directory.GetFiles(folder, "*.*", SearchOption.TopDirectoryOnly)
            If GdViewer1.DisplayFromFile(fName) = GdPictureStatus.OK Then
                Dim result As DialogResult = MessageBox.Show("Next file?", "GdViewer.CloseDocument", MessageBoxButtons.YesNo)
                If result = DialogResult.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 (FolderBrowserDialog dialog = new FolderBrowserDialog())
{
    dialog.Description = "Select the folder for opening your files.";
    dialog.ShowNewFolderButton = false;
    dialog.RootFolder = Environment.SpecialFolder.Desktop;
    if (dialog.ShowDialog() == DialogResult.OK)
    {
        string folder = dialog.SelectedPath;
        string fileName = "";
        foreach (string fName in Directory.GetFiles(folder, "*.*", SearchOption.TopDirectoryOnly))
        {
            if (GdViewer1.DisplayFromFile(fName) == GdPictureStatus.OK)
            {
                DialogResult result = MessageBox.Show("Next file?", "GdViewer.CloseDocument", MessageBoxButtons.YesNo);
                if (result == DialogResult.No)
                {
                    fileName = fName;
                    break;
                }
                else
                {
                    GdViewer1.CloseDocument();
                }
            }
        }
        //Do your stuff with fileName.
    }
}

Reference

GdViewer Class
GdViewer Members
Overload List
Clear Method
Redraw Method
Dispose Method