C# .Net 3.5 Remove Event added to PrintDialog before add new event

Question

When I click button "Print" my form

private void btnPrint_Click(object sender, EventArgs e)
{
    PrintDialog.Document.PrintPage += (pSender, pE) => PrintEvent(pSender, pE, PrintInfo);
    PrintDialog.Document.Print();
}

PrintDialog is global variable type System.windows.forms.PrintDialog. When I click button "Print" at second time, I want remove PrintEvent added at the first time clicked button before add new PrintEvent. How can I do?

Answer 1

To do it, you must convert lambda to method:

private void btnPrint_Click(object sender, EventArgs e)
{
    PrintDialog.Document.PrintPage -= Print;
    PrintDialog.Document.PrintPage += Print;
    PrintDialog.Document.Print();
}

void Print(object sender, PrintPageEventArgs e)
(
    //pass info
    PrintEvent(sender, e, PrintInfo)
)