I have a need to print
out some documents programmatically using .Net and C#. Here are my notes on how to get basic
printing working in C#.
This document just goes
over printing on more than one page
Set up a Virtual Printer
Before I starting
writing this program I downloaded and installed a virtual printer. In the past I have used a CUPS printer on my
Mac but for this time around I looked around for something to run directly on
my Windows 7 machine. I found CutePDF at
http://www.cutepdf.com/Products/CutePDF/writer.asp [1]
I installed this virtual
server so I could test my printing without using up so much paper.
Before I go into my
instructions there is a good YouTube video that goes over how to do basic
printing in visual studio, using Visual basic.
http://youtu.be/m8Hz69jnae8 [2] It's not to hard to use this video to figure
out how to do it in C#
Create a basic Windows Form Application
From Visual Studio 2012
Professional click on New project (or from the menu select File --> New --> Project
- Select Windows Forms Application
- I named mine PrintDocumentWithMultiplePagesTestApp
- Click OK
Add a button to the
program, I updated the button's text to "Print"
From the ToolBox search
for print. The two print tools that
will be used for this simple tutorial are PrintDocument and PrintPreviewDialog.
Drag and drop one PrintPrevieDialog
and One PrintDocument tool to the Form.
They will show up on the bottom of the design window.
Double click on
PrintDocument1
This will open the code
were you can define how the document will be printed.
Microsoft has a good page explaining how the PrintPageEvent
works to print more than one page at http://msdn.microsoft.com/en-us/library/system.drawing.printing.printdocument.printpage.aspx
[3]
Basically you need to use the PrintPageEventArgs HasMorePages
value. If you set this to true the print
event will be called again until it is set to false
Here is the code I wrote for the document creation
public partial class Form1 : Form {
private int currentPage = 1;
public Form1() {
InitializeComponent();
}
private void printDocument1_PrintPage(object sender,
System.Drawing.Printing.PrintPageEventArgs e) {
Graphics g = e.Graphics;
Font font = new Font("Microsoft
Sans Serif", 24F,
System.Drawing.FontStyle.Bold,
System.Drawing.GraphicsUnit.Point,
((byte)(0)));
if (this.currentPage == 1) {
g.DrawString("First
Page", font,
System.Drawing.Brushes.Black, 100, 50);
this.currentPage++;
e.HasMorePages = true;
}
else if (this.currentPage == 2) {
g.DrawString("Second
Page", font,
System.Drawing.Brushes.Red, 100, 50);
this.currentPage = 1;
e.HasMorePages = false;
}
}
|
This will Document will
draw the string "First Page" on the first page then call the print
page event again and print the second page with "Second Page" on it.
Now this document is
ready to print but it needs to actually be printed.
Double Click on the
Button to create the Button click event for this button
private void button1_Click(object sender, EventArgs e) {
printPreviewDialog1.Document =
printDocument1;
printPreviewDialog1.ShowDialog();
this.currentPage = 1;
}
|
This code will assign
the printDocument1 to the printPreviewDialog1 and open it in a dialog.
Test it
Click Start and run the
program
Click print
This is the
PrintPreviewDialog. It’s a basic print
preview tool. You can feed it a PrintDocument
and it will display it and give you some basic tools to zoom, go through pages,
and print it.
Click on the "Two
Pages" button and you can see both pages side by side.
Click the Print button
It will immediately try
to print on your default printer (this basic print preview does not have an
option for selecting printers)
For some reason you have
to click the screen again to open the CudePDF dialog
This is the CutePDF
dialog. Give the document a name and
location and click Save.
Here is a screen capture
of the PDF created when I printed to the CutePDF.
As another test I
actually printed it out and I obtained the same results on a piece of paper.
References
[1] Cute PDF
Accessed 05/2013
[2] Cute PDF
Accessed 05/2013
[3] PrintDocument.PrintPage
Event
Accessed 05/2013
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