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Forums » Prof-UIS General Discussion » Setting a range to numeric cells Collapse All
Subject Author Date
a a Feb 9, 2006 - 6:29 PM

Is it possible to set a minimum and maximum value to cells with numeric content? (Just like the color cells does for limiting values in [0,255].)


If not, I would implement it by deriving cell classes, but the only annoying point is that I have to check the actual data type (I’m using a ’value’ class for data abstraction, and the internal code might know the type without having to check).


Thanks.

Technical Support Feb 10, 2006 - 9:17 AM

Just override the OnQueryEnabledIncrement() and OnQueryEnabledDecrement() virtual methods. Here is the code from the CExtGridCellUpDownColorPart cell class in which the value can only be in the range of 0 to 255:

bool CExtGridCellUpDownColorPart::OnQueryEnabledIncrement() const
{
 ASSERT_VALID( this );
 if( intVal >= 255 )
  return false;
 return true;
}
bool CExtGridCellUpDownColorPart::OnQueryEnabledDecrement() const
{
 ASSERT_VALID( this );
 if( intVal <= 0 )
  return false;
 return true;
}

a a Feb 13, 2006 - 3:28 AM

Thanks.