Show multiple data in parameters of crystal report in C#.net

Question

5.00/5 (1 vote)

See more:

Im making crystal report in VS 2008,And want to add a subreport,I have written following commands

1)CrystalReport1 cr = new CrystalReport1();
2) DataSet ds = new DataSet();
3) ds.Tables.Add("table");
4) ds.Tables[0].Columns.Add("name");
5) ds.Tables[0].Rows.Add("fksdfs");
6)cr.OpenSubreport("CrystalReport1.rpt").SetDataSource(ds.Tables["table"]);
7)crystalReportViewer1.ReportSource = cr;

getting error in 6th line : "Object reference not set to an instance of an object"

I have no clue how to resolve!!Can anyone plz help!!its urgent!!

Posted 11-Aug-10 19:18pm

saloni15

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sandeep Mewara · Accepted Answer · 2010-08-12T07:40:00

Object reference not set to an instance of an object
This error simply means that some object value is null and yet you are trying to use it somewhere directly or using it's properties.

Using DEBUGGER can tell you the exact object. When you got this error, you already know the line (which you have not mentioned here). Even if you are not aware, a simple debugging would tell you that.

Now here,
most probably the error is in line:

C#

cr.OpenSubreport("CrystalReport1.rpt").SetDataSource(ds.Tables["table"]);

You are trying to open a subreport using a method 'OpenSubreport' but you have no where defined that the crystal report object 'cr' has one.

Read on how to add subreports dynamically through code.