I'm using this code:
DataTable table = new DataTable();
table.Columns.Add("Title");
dataGridView1.DataSource = table;
to populate my dataGridView but I get a null reference exception when I set the datasource.
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ComanderKai77
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1Where are you initializing dataGridView1? – Nick Bailey Jan 30 '16 at 19:32
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1@ComanderKai77 Where does `dataGridView1` comes from ? – tchelidze Jan 30 '16 at 19:37
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In your code only if `dataGridView1` is `null`, such Exception will be thrown. Check that or give us more code.Notice that Exception always contains number of the line which thrown exception. – Fabio Jan 30 '16 at 19:48
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2Possible duplicate of [What is a NullReferenceException and how do I fix it?](http://stackoverflow.com/questions/4660142/what-is-a-nullreferenceexception-and-how-do-i-fix-it) – Tim Jan 30 '16 at 19:57
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The DGV is created by the Forms – ComanderKai77 Jan 30 '16 at 20:57
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The problem was, the code from above gets executed before the form is loaded. – ComanderKai77 Jan 30 '16 at 22:44
1 Answers
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Your dataGridView1 is most likely a NULL reference. To verify, set a breakpoint on the line and when you hit it, hover your mouse over dataGridView1.
Kai van Lopik
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