C# Datagrid

What properties you need to set?

Here is a sample code which set the readonly property of a cell to true when the value in other cell is changed

private void dgvWhere_CurrentCellChanged(object sender, EventArgs e)

        {

            //Enable 2 compare text box only if the operator is between

            if (dgvWhere.CurrentRow.Cells["dgvcmbOperator"].Value != null && dgvWhere.CurrentRow.Cells["dgvcmbOperator"].Value.ToString().Trim() == "between")

                dgvWhere.CurrentRow.Cells["dgvtxtCompare2"].ReadOnly = false;

            else

            {

                dgvWhere.CurrentRow.Cells["dgvtxtCompare2"].Value = null;

                dgvWhere.CurrentRow.Cells["dgvtxtCompare2"].ReadOnly = true;

            }

            DisplaySQL();

        }

Hope this helps