print problem in C# .net windows application

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Hi All
I am working on C# windows application where print button is there if I click print button the printer path in .ini file when I am trying to run it shows error
below I m giving the code

private void btnPrinter_Click(object sender, EventArgs e)
{
 private printcon pObj = new printcon() //Here "printcon" is a class file//
 private OdbcConnection connPrt = new OdbcConnection();
 connPrt = new OdbcConnection(pObj.connection());   //Format of the        initialization string does not conform to specification starting at index 0.//
 PrintDocument doc = new PrintDocument();
 doc.PrinterSettings.PrinterName = Convert.ToString(connPrt);
 doc.PrintPage += this.doc_PrintPage;
 PrintDialog dlgSettings = new PrintDialog();
 dlgSettings.Document = doc;
 doc.Print();
}

If it is possible please help

Thanks & Regards
Indrajit Dasgupta

Posted 12-Oct-11 18:45pm

IndrajitDasgupat

Updated 12-Oct-11 18:46pm

Rajesh Anuhya

v2

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Pravin Patil, Mumbai 13-Oct-11 0:50am

What is the error...?

IndrajitDasgupat 14-Oct-11 1:10am

connPrt=new OdbcConnection(pObj.connection());
The Error is Below---
Format of the initialization string does not conform to specification starting at index 0.

Firo Atrum Ventus 13-Oct-11 1:06am

1. Typo in new printcon()
2. There's no need to declare local variable private (no one can read them anyway)
3. Can you please show the code in printcon class?

sandesh.mumbai 13-Oct-11 1:22am

just post the error msg also so we can get better idea about where it is having problem. As per code it looks ok just not getting why u r using this
doc.PrintPage += this.doc_PrintPage;

lukeer 13-Oct-11 3:00am

The actual printing is done in PrintPage event handler. The handler is called by the PrintDocument.

IndrajitDasgupat 14-Oct-11 1:11am

connPrt=new OdbcConnection(pObj.connection());
The Error is Below---
Format of the initialization string does not conform to specification starting at index 0.

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OriginalGriff · Answer 1 · 2011-10-12T21:06:00

We cannot hep from that code:

C#

private printcon pObj = new printcon() //Here "printcon" is a class file//
private OdbcConnection connPrt = new OdbcConnection();
connPrt = new OdbcConnection(pObj.connection());   //Format of the        initialization string does not conform to specification starting at index 0.

We do not know what printcon.connection is returning as a connection string - you haven't shown us that. And that is what the ODBC system is complaining about.

Run you program in the debugger. Put a breakpoint on the "connPrt = new OdbcConnection..." line, and step into the pObj.connection method. You should be able to work out what the problem is from there.

Anuja Pawar Indore · Answer 2 · 2011-10-12T22:19:00

Solution 2

Refer this article, might help
Print Windows Forms w/o using API[^]

Posted 12-Oct-11 22:19pm

Anuja Pawar Indore

sandesh.mumbai · Answer 3 · 2011-10-13T21:53:00

your call to printcon() while creating object is returning wrong value may be because of that u r call using pObj is not fall under OdbcConnection object please put breakpoint at instance of printcon & see the return value type.

private printcon pObj = new printcon() //Here "printcon" is a class file//
///put breakpoint on above line then chk for value type

private OdbcConnection connPrt = new OdbcConnection();
connPrt = new OdbcConnection(pObj.connection());

print problem in C# .net windows application

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