Static field and Object reference not set to an instance of an object

Question

I have a static field in a non static class.

public class DBtools
{
     public static string ConString ="XXXXXXXXX";
}

This field is assigned to property in the code.

SqlDataSource1.ConnectionString = DBtools.ConString;

But after i run this app I'm getting a error:

Object reference not set to an instance of an object

How come this is happening? It's a static field.

Are you sure `SqlDataSource1` has a value? – tpower Oct 23 '09 at 11:26 — tpower, Oct 23 '09 at 11:26

score 3 · Accepted Answer · answered Oct 23 '09 at 11:25

3

The SqlDataSource1 object has not been initialized.

answered Oct 23 '09 at 11:25

Tertius Geldenhuys

358
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score 2 · Answer 2 · answered Oct 23 '09 at 11:30

2

You have a debugger in front of you. Put a break point on that line, and when it stops investigate all the fields/variables/etc involved. It sounds like however SqlDataSource1 is defined, it is currently null.

answered Oct 23 '09 at 11:30

Marc Gravell

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score 1 · Answer 3 · answered Oct 23 '09 at 11:25

1

Maybe the error is referring to SqlDataSource1 being null?

answered Oct 23 '09 at 11:25

Christian Hayter

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Static field and Object reference not set to an instance of an object

3 Answers3