Question

Why is there an additional row in my DataGrid?

My DataSource has 15 rows.

source.DataSource = dt;
MessageBox.Show(Convert.ToString(source.Count)); // shows 15

dataGrid1.ItemsSource = source;
MessageBox.Show(Convert.ToString(dataGrid1.Items.Count)); // shows 16

My DataGrid has 16 rows, the last one is null.

How can I do delete the last row?

Answer 1

I could imagine that what you see is the empty row adding new records. Try:

<DataGrid CanUserAddRows="False" ...

to disable adding new rows, and I expect the surplus row to be gone.