protected override void Paint(Graphics g, Rectangle Bounds, CurrencyManager Source, int RowNum, Brush BackBrush, Brush ForeBrush, bool AlignToRight)
{
//can remove this if you don't want to vary the formatting on disabled cells
bool enabled = true;
//check if our event handler is not null for this cell and then signal the event
//the returning result in 'e' will contain a true or false boolean value
//the event can be 'receieved' anywhere in our program and the logic can be anything
// we choose. The method called from the event simply has to match our 'CheckCellEventHandler'
//delegate.
if (CheckCellEven != null)
{
DataGridEnableEventArgs e = new DataGridEnableEventArgs(RowNum, _col, enabled);
CheckCellEven(this, e);
if (e.MeetsCriteria)
{
BackBrush = new SolidBrush(Color.Orange);
}
}
//repeat again for our second event handler
if (CheckCellContains != null)
{
DataGridEnableEventArgs e = new DataGridEnableEventArgs(RowNum, _col, enabled);
CheckCellContains(this, e);
if (e.MeetsCriteria)
{
BackBrush = new SolidBrush(Color.PaleGreen);
}
}
base.Paint(g, Bounds, Source, RowNum, BackBrush, ForeBrush, AlignToRight);
//out third event handler , we are going to use this draw a rectangle around our
//cell so we call it after we have called the base class paint method
if (CheckCellEquals != null)
{
DataGridEnableEventArgs e = new DataGridEnableEventArgs(RowNum, _col, enabled);
CheckCellEquals(this, e);
if (e.MeetsCriteria)
{
g.DrawRectangle(new Pen(Color.Red, 2), Bounds.X + 1, Bounds.Y + 1, Bounds.Width - 2, Bounds.Height - 2);
}
}
}
protected override void Paint(Graphics g, Rectangle Bounds, CurrencyManager Source, int RowNum, Brush BackBrush, Brush ForeBrush, bool AlignToRight)
{
if (IsChecked != null)
{
// White backround.
g.FillRectangle(BackBrush, Bounds);
// Show check box if true.
Boolean Enabled = true;
DataGridEnableEventArgs e = new DataGridEnableEventArgs(RowNum, _col, Enabled);
IsChecked(this, e);
if (e.MeetsCriteria)
{
try
{
Image imgCheckBox = new Bitmap(Assembly.GetExecutingAssembly().GetManifestResourceStream("PocketPCGrid.CheckBox.GIF"));
g.DrawImage(imgCheckBox, Bounds.X + (Bounds.Width - imgCheckBox.Width) / 2, Bounds.Y);
}
catch (Exception)
{}
}
}
}