RE: DataGridView CheckBoxColumn problem (SOLVED)

[Greg Keogh]

>Here is the code that does the trick for me.

 

Your code has overloads and properties that are not available to me, but
after adjusting it to compile, IT WORKS! I tried code very similar to yours
in my experiments, but I don't think I actually extracted the cell value,
flipped it and set it again like you do. Jeez I must have been close. Thanks
for pointing me in the right direction after such a long period of
hopelessness on this. My code is below and you will that I check for the
correct row and column along with some other subtle differences.

 

Thanks heaps,

Greg

 

 

/// <summary>
/// This handler is a workaround for a problem where the CheckBox column
cell in the
/// top row (top row only!) will not respond to mouse clicks and change
state.
/// </summary>
private void gridRU_MouseUp(object sender, MouseEventArgs e)
{
    DataGridView.HitTestInfo hti = gridRU.HitTest(e.X, e.Y);
    if ((hti.Type == DataGridViewHitTestType.Cell) && (hti.RowIndex == 0))
    {
        DataGridViewColumn col = gridRU.Columns[hti.ColumnIndex];
        if (col.Name == colSelected.Name)
        {
            DataGridViewCell cell =
gridRU.Rows[hti.RowIndex].Cells[hti.ColumnIndex];
            bool selected = (bool)cell.Value;
            cell.Value = !selected;
            gridRU.EndEdit();
            gridRU.InvalidateRow(hti.RowIndex);
        }
    }
}

 

 

private void MyDataGrid_MouseUp(object sender,
System.Windows.Forms.MouseEventArgs e)

{

    DataGrid senderGrid = sender as DataGrid;

     DataGrid.HitTestInfo hti = senderGrid.HitTest(e.X, e.Y);

     if (hti.Type == DataGrid.HitTestType.Cell && "check here that the right
cell has been clicked") 

    {

        bool itemChecked = !(bool) senderGrid[hti.Row, hti.Column];

        senderGrid[hti.Row, hti.Column] = itemChecked;

 
senderGrid.EndEdit(MyDataGrid.TableStyles[0].GridColumnStyles[hti.Column],
hti.Row, false);

        senderGrid.Refresh();

    }

}