C# WebBrowser.ShowPrintDialog() not showing
- by jeah_wicer
I have this peculiar problem while wanting to print a html-report. The file itself is a normal local html file, located on my hard drive.
To do this, I have tried the following:
public static void PrintReport(string path)
{
WebBrowser wb = new WebBrowser();
wb.Navigate(path);
wb.ShowPrintDialog()
}
And I have this form with a button with the click event:
private void button1_Click(object sender, EventArgs e)
{
string path = @"D:\MyReport.html";
PrintReport(path);
}
This does absolutely nothing. Which is kind of strange... but things get stranger...
When editing the print function to do the following:
public static void PrintReport(string path)
{
WebBrowser wb = new WebBrowser();
wb.Navigate(path);
MessageBox.Show("TEST");
wb.ShowPrintDialog()
}
It works. Yes, only adding a MessageBox. The MessageBox is showing and after it comes the print dialog. I have also tried with Thread.Sleep(1000) instead, which doesn't work. Can anyone explain to me what's going on here? Why would a messagebox make any difference?
Can it be some kind of permission problem? I've reproduced this on both Windows 7 and 8, same thing. I made this small application with only the above code to isolate the problem. I am quite sure it works on windows XP though, since an older version of the application I'm working on runs on it. When trying to do this directly with the mshtml-dll instead I also get problems.
Any input or clarification is greatly appreciated!
