Come on man… there has to be a simple solution, and finally got one. dataGridView1.DefaultCellStyle.SelectionBackColor = Color.Blue; dataGridView1.DefaultCellStyle.SelectionForeColor = Color.Red; This worked for me, no complex codes, no event handling. I did it before but was not able to recall so thought posting it would help others and me in future 🙂
int sum = 0; for (int i = 0; i < dataGridView1.Rows.Count; ++i) { sum += Convert.ToInt32(dataGridView1.Rows[i].Cells[1].Value); } label1.Text = sum.ToString();
I may suggest NOT looping over each rows EACH time CellFormating is called, because it is called everytime A SINGLE ROW need to be refreshed. Private Sub dgv_DisplayData_Vertical_CellFormatting(sender As Object, e As DataGridViewCellFormattingEventArgs) Handles dgv_DisplayData_Vertical.CellFormatting Try If dgv_DisplayData_Vertical.Rows(e.RowIndex).Cells(“LevelID”).Value.ToString() = “6” Then e.CellStyle.BackColor = Color.DimGray End If If dgv_DisplayData_Vertical.Rows(e.RowIndex).Cells(“LevelID”).Value.ToString() = “5” Then e.CellStyle.BackColor = Color.DarkSlateGray End … Read more
there is HeaderText property in Column object, you can find the column and set its HeaderText after initializing grid or do it in windows form designer via designer for DataGrid. public Form1() { InitializeComponent(); grid.Columns[0].HeaderText = “First Column”; //………….. } More details are here at MSDN. More details about DataGrid are here.
The DataGridView has a Property called MultiSelect ( default True ). Set this to False.
Setting the CurrentCell and then calling BeginEdit(true) works well for me. The following code shows an eventHandler for the KeyDown event that sets a cell to be editable. My example only implements one of the required key press overrides but in theory the others should work the same. (and I’m always setting the [0][0] cell … Read more
First, I don’t understand why you are adding all the keys and values count times, Index is never used. I tried this example : var source = new BindingSource(); List<MyStruct> list = new List<MyStruct> { new MyStruct(“fff”, “b”), new MyStruct(“c”,”d”) }; source.DataSource = list; grid.DataSource = source; and that work pretty well, I get two … Read more
This works for me dataGridView1.Rows[rowIndex].Cells[columnIndex].Style.BackColor = Color.Red;
The above answer led me down the primrose path for awhile. It does not work as it causes multiple events to fire and just keeps adding events. The problem is that the above catches the DataGridViewEditingControlShowingEvent and it does not catch the value changed. So it will fire every time you focus then leave the … Read more
If the DataGridView is databound, you shouldn’t directly modify the content of the cell. Instead, you should modify the databound object. You can access that object through the DataBoundItem of the DataGridViewRow : MyObject obj = (MyObject)dataGridView.CurrentRow.DataBoundItem; obj.MyProperty = newValue; Note that the bound object should implement INotifyPropertyChanged so that the change is reflected in … Read more