public void ShowList() { try { BusinessManager BM = new BusinessManager(); DataTable dt = BM.BALGetCompanyData(); BindingSource bSource = new BindingSource(); bSource.DataSource = dt; dataGridView1.DataSource = bSource; DataGridViewColumn column = dataGridView1.Columns[0]; column.Width = 233; } catch (Exception ex) { MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }