Comments on Yakko Warner: A nullable DataGridView CalendarColumn

Good call, I didn't think about Clone. I'...

2010-10-24T14:59:24.446-06:00

Good call, I didn't think about Clone.

I'm not sure why it would work for me without and it wouldn't work for you. All I could guess was that something in your implementation ended up using Clone, but mine did not. What that "something" is, though, I couldn't begin to guess.

I had to also override CalenderCellNullable.Clone ...

2010-10-24T02:08:56.596-06:00

I had to also override CalenderCellNullable.Clone to get this to work (on .NET 2.0).

public override object Clone() {
CalenderCellNullable clone = (CalenderCellNullable)base.Clone();
clone.isNullable = this.isNullable;
return clone;
}

What am I missing in the original that made it work for you without the code above?

Yakko, Thanks for the code - it helped TREMENDOUS...

2010-02-01T09:16:23.580-07:00

Yakko,

Thanks for the code - it helped TREMENDOUSLY! I'm using the grid non-bound.

I made a minor change to mine:
public class CalendarColumnNullable : DataGridViewColumn
{
public CalendarColumnNullable()
: base(new CalendarCellNullable())
...
}

public class CalendarCellNullable : CalendarCell
{
public CalendarCellNullable()
{
this.isNullable = true;
}
}