End user design report problem

[beginner81]

Hi. Im having the problem to design an end-user report . What should i do at first ?? Do i need to
pre-designed one and save it as the templates, so the end-users can load
the template when they want to design their own report ? IF yes, then
how? for ya info, im using the Dev Express XtraReport Designer

One more thing here, when i link a button to a report and export it
in .pdf file, the following error occur:

"An unhandled exception of type 'System.IO.IOException' occured in
mscorlib.dll

Additional information: The filename, directory name, or volume label
syntax is incorrect."

wat's wrong with the message ? for ur info, here is my code:

private void button1_Click(object sender,
System.EventArgs e)
{
XtraReport1 report = new XtraReport1();
report.CreatePdfDocument("c:\report.pdf");
report.ShowPreview();
}

and this is the library i've included.
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using DevExpress.XtraReports;

Hope someone can help as im in crying need now. Thanks in advance.

 

[obislavu]

>>>Additional information: The filename, directory name, or volume label
syntax is incorrect."

Write :
[code
report.CreatePdfDocument("c:\\report.pdf");
[/code]

Also use try-catch block :

try
{
XtraReport1 report = new XtraReport1();
            report.CreatePdfDocument("c:\report.pdf");
            report.ShowPreview();
}
catch (Exception ex)
{
  string sErr = ex.GetType() + ex.Message;
}
[code]
-obislavu-