Question

I need it to:

1. Expand the columns to fill the entire width regardless of length of strings.
2. Select the entire row on click anywhere on it.

I also need to capture a double click and retrive the value of a column, on the row a user clicked. Does the EventArgs e, have this property?

Answer 1

I think what you are looking to do is set the Column Fill Mode for the width.

Column Fill Mode in the Windows Forms DataGridView Control

You can handle the double click event using CellMouseDoubleClick

DataGridView.CellMouseDoubleClick Event

DataGridViewCellMouseEventArgs e
row = e.RowIndex
column = e.ColumnIndex