Question

I am trying to print a document with .txt extension and for that I am referring to my course book but confused. Here is the source code given in the book :

private void Print_Click(object sender, EventArgs e)
{
printDialog1.Document = printDocument1 // there is no object in my program names ad printDocument1
DialogResult result = printDialog1.ShowDialog();
if (result == DialogResult.OK)
{
printDocument1.Print();

and there is lot more code given

Answer 1

Your example is assuming that a PrintDocument object has been dragged onto the form from the toolbox: you could though just as easily create the object yourself.

      private void Print_Click(object sender, EventArgs e)
      {
        PrintDocument printDocument = new PrintDocument();
        printDocument.PrintPage += new PrintPageEventHandler(printDocument_PrintPage);

        PrintDialog printDialog = new PrintDialog 
        {
            Document = printDocument
        };

        DialogResult result = printDialog.ShowDialog();

        if (result == DialogResult.OK)
        {
            printDocument.Print(); // Raises PrintPage event
        }
    }

    void printDocument_PrintPage(object sender, PrintPageEventArgs e)
    {
        e.Graphics.DrawString(...);
    }