How do I toggle the background color of a datagridview row with checkbox column?

Question

I have a datagridview bound to a dataset. I added a datagridview checkbox column to it. I want to toggle the background color of a selected row when I select/unselect the checkbox. How do I do it?

Kirtan Patel · Answer

Here is What you want :) Here Column[0] is CheckBox Column Dot Forget to mark  do you like answer  please :) it will give me some credit :) private void dataGridView1_CellValueChanged( object sender DataGridViewCellEventArgs e) { dataGridView1.SelectionMode = DataGridViewSelectionMode .FullRowSelect; foreach ( DataGridViewRow r in dataGridView1.Rows) { if ( Convert .ToBoolean(r.Cells[0].Value) == true ) { dataGridView1.Rows[r.Index].DefaultCellStyle.BackColor = Color .Red; } else { dataGridView1.Rows[r.Index].DefaultCellStyle.BackColor = Color .Empty; } } // Make only CheckBox column writable and rest of all Readonly foreach ( DataGridViewColumn c in dataGridView1.Columns) { if (c.Index == 0) { c.ReadOnly = false ; } else { c.ReadOnly = true ; } } }

Jesupriyan · Answer

thanks for the las reply that is Posted on: 9/19/2008 6:00:42 PM.

Henry Vuong · Answer

Your code works but it can only change the color of one row at a time when I select another row the previously-selected row color is toggled back to normal. I figured out another way to toggle the color of multiple rows. For those who have similar question: private void DataGridView1_CellClick(object sender DataGridViewCellEventArgs e) { bool selected = !Convert.ToBoolean(dataGridView1.Rows[e.RowIndex].Cells[ckb_column].Value); if (selected) { dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.Gray; dataGridView1.Rows[e.RowIndex].Cells[ckb_column].Value = !Convert.ToBoolean(dataGridView1.Rows[e.RowIndex].Cells[ckb_column].Value); } else { dataGridView1.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.White; dataGridView1.Rows[e.RowIndex].Cells[ckb_column].Value = !Convert.ToBoolean(dataGridView1.Rows[e.RowIndex].Cells[ckb_column].Value); } } where ckb_column is the name of the checkbox column. No need to change the RowTemplate property. And of course I add this to the Form_Load even: //Delegate the CellClick event dataGridView1.CellClick += new DataGridViewCellEventHandler(DataGridView1_CellClick); Thank you for answering

Ryan Alford · Answer

In the properties for the DataGridView choose the RowTemplate property(you will need to drill-down) then open the DefaultCellStyle property that is part of the RowTemplate property. Set the SelectionForeColor and SelectionBackColor to whatever you want. now in the CellClick event for the DataGridView add this code. --------- Code -------- // this will work if your checkbox is the first column in the grid // if your checkbox is another column you will need to change the Cells index to the correct column index // This will allow the clicking of any cell in the grid and will check the checkbox if it is not checked and will uncheck // the checkbox if it is checked. if (Convert.ToBoolean(dataGridView1.Rows[e.RowIndex].Cells[0].Value)) { dataGridView1.Rows[e.RowIndex].Cells[0].Value = false; dataGridView1.Rows[e.RowIndex].Selected = false; } else { dataGridView1.Rows[e.RowIndex].Cells[0].Value = true; dataGridView1.Rows[e.RowIndex].Selected = true; } --------- Code --------