c＃dataGridView空引用异常

Question

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 .

Answer 1

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.