GdPicture.NET.14~GdPicture14.GdViewer~CloseDocument()

CloseDocument() Method

In This Topic

Closes the currently displayed document and clears the GdViewer control.

The GdViewer.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 GdViewer.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.

    }

}

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 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
DocumentClosed Event
DocumentClosed Event
Clear Method
Redraw Method
Dispose Method