CellRenderer Deactivating

[Dirk Puis]

I have created a cellrenderer derived from GridTextBoxCellRenderer (to prevent the user from typing certain characters). This works fine. But now I want to remove leading zero characters from the cell if a new value has been entered. E.g. if the user enters "003", I want to change that into "3" when the value has been entered.

I tried handling OnDeactivating. In OnDeactivating, I get the TextBoxText ("003"), create a new string based on that ("3"), and then set the TextBoxText to that new string. Somehow, the text in the cell reverts to whatever was in there before I started editing. Is there anything else I need to do to enforce my own value?

[Administrator]

Try overriding OnSaveChanges and do your modifications there before setting it into the style for the cell. Below is the current source.

protected override bool OnSaveChanges()
{
	if (CurrentCell.IsModified)
	{
		GridStyleInfo style = Grid.Model[currentRowIndex, currentColIndex];
		style.FormattedText = this.TextBoxText;
		return true;
	}
	return false;
}

[Dirk Puis]

Wew, that works great ... with some modifications. I took out the "if(CurrentCell.IsModified)" because that never seems to be set. I also had to replace currentRowIndex and currentColIndex by CurrentCell.RowIndex and CurrentCell.ColIndex because currentRowIndex and currentColIndex were "inaccessible due to its protection level". So my code looks like this:

protected override bool OnSaveChanges()
{
// Allow subclasses to react to set the
// formatted text
TrimLeadingZeroes();

GridStyleInfo style =
Grid.Model[CurrentCell.RowIndex,
CurrentCell.ColIndex];
style.FormattedText = this.TextBoxText;
return true;
}