(DataGridView + Binding)How to color line depending of the object binded?

Question

I would like to add a backcolor for specific line depending of a Property of the object binded.

The solution I have (and it works) is to use the Event DataBindingComplete but I do not think it's the best solution.

Here is the event:

    private void myGrid_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
    {

        for (int i = 0; i < this.myGrid.Rows.Count; i++)
        {
            if((this.myGrid.Rows[i].DataBoundItem as MyObject).Special)
            {
                this.myGrid.Rows[i].DefaultCellStyle.BackColor = Color.FromArgb(240, 128, 128);
            }
        }
    }

Any other option that would be better?

Answer 1

You can also attach an event handler to RowPostPaint:

dataGridView1.RowPostPaint += OnRowPostPaint;

void OnRowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
    MyObject value = (MyObject) dataGridView1.Rows[e.RowIndex].DataBoundItem;
    DataGridViewCellStyle style = dataGridView1.Rows[e.RowIndex].DefaultCellStyle;

    // Do whatever you want with style and value
    ....
}

Answer 2

I don't really work with WinForms that much, but in ASP you would use the 'ItemDataBound' method. Is there something similar in windows forms for a DataGrid?

If so, in that method, the event arguments would contain the item that was databound, along with the DataGrid row. So the general code would look something like this (syntax is probably off):

if(((MyObject)e.Item.DataItem).Special)
   e.Item.DefaultCellStyle.BackColor = Color.FromArgb(240, 128, 128);