How to use the Dispatcher in windows form Application.

chetan Allipur

9y7.9kWindows Forms

I am getting error on Dispatcher Keyword.

here is my code.

private void btnOk_Click(object sender, EventArgs e)

{

Dispatcher.BeginInvoke(new Action(OpenDocument));

OpenNewFile opn = new OpenNewFile();

opn.Hide();

}

public void OpenDocument()

{

if (cbRegion.SelectedIndex >= 0 && cbPaperSize.SelectedIndex >= 0 && cbFont.SelectedIndex >= 0 && cbTemplateSection.SelectedIndex >= 0 && cbTemplateDocument.SelectedIndex >= 0)

{

try

{

object missing = System.Reflection.Missing.Value;

if (!File.Exists(destinationPath))

{

File.Copy(sourcepath, destinationPath, true);

}

//Microsoft.Office.Interop.Word.Application ap = new Microsoft.Office.Interop.Word.Application();

//Microsoft.Office.Interop.Word.Document oWordDoc = Globals.ThisAddIn.Application.ActiveDocument;

Microsoft.Office.Interop.Word.Application ap = Globals.ThisAddIn.Application;

Microsoft.Office.Interop.Word.Document oWordDoc = ap.ActiveDocument;

oWordDoc = ap.Documents.Open(destinationPath, missing, false, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing

, missing, missing, missing);

oWordDoc = ap.ActiveDocument;

ap.Visible = true;

ap.Activate();

}

catch (Exception ex)

{

throw ex;

}

else

{

MessageBox.Show("Please select the value form combobox", "BOX", MessageBoxButtons.OK, MessageBoxIcon.Information);

}

6 Replies

Know the answer? Post it — somebody with the same question will find it here.

chetan Allipur9y ago
Thank you for giving the suggestions.
Amit Gupta9y ago
To close an opened document, you can call ap.Quit();

Please read my earlier reply's link.

Or

If its only a matter to open and close the word file, I ll prefer to use Process class, as using Interoperability is quite slow.

//Opening a word document
var proc = Process.Start("yor WordFilePath");

//Close the file
proc.Close(); or proc.Kill();

Hope this helps
chetan Allipur9y ago
If I button click blank page opening in the word. I have Dialough box to open other word files. When I open my new douments from the dialough box.The new document is opening.But I want to close the old document.

This is I want to do. How to close the previous opened document?
Amit Gupta9y ago
Can you tell me the scenario of your program? As I couldn't found any dialog opening related code in your snippet.

Is it your full code?

You can have a look to the below link
https://www.dotnetperls.com/word
chetan Allipur9y ago
I am getting error. like this "You cannot close Microsoft Word because a dialog box is open.\nClick OK, switch to Word, and then close the dialog box.". Please tell me solution
Amit Gupta9y ago
Hey

Dispatcher class is available in WPF not in Windows Form Application. Call your openDocument method directly.