Object reference not set to an instance of an object.

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I can add the my coding in below

C#

35         //this.Con = new SqlConnection(s);
36         //this.Con.Open();
37         string ss = ConfigurationManager.ConnectionStrings["Con"].ToString();
38         this.Con = new SqlConnection(ss);
39         this.Con.Open();

object reference not set to an instance of an object error comes in internet explorer window ,,

how to solve these error ~~ASAP~~............

Posted 24-Feb-11 18:59pm

ManiKandanSekar

Updated 25-Feb-11 3:24am

Henry Minute

v3

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pankajupadhyay29 · Answer 1 · 2011-02-24T19:08:00

Solution 1

You have not added any connection string with name "Con" in your web.config
Use the following code

string ss = ConfigurationManager.ConnectionStrings["Con"].ConnectionString;
this.Con = new SqlConnection(ss);
this.Con.Open();

Posted 24-Feb-11 19:08pm

pankajupadhyay29

Abhinav S · Answer 2 · 2011-02-24T19:13:00

Solution 2

There is an object somewhere in your code that has not been instantiated and is null.
You are probably trying to access a property in that object and that is why you are getting this error!

Posted 24-Feb-11 19:13pm

Abhinav S