Forum

I have a grid cell with the CExtGridCellComboBox inserted and enum mode set to true. If the grid cell is empty (no value has been selected) and I call TextSet() with an invalid string (one not added to the combo box) the text in that cell will be changed, even though it is not a valid choice. But if the grid cell already has a value selected and I call TextSet() with an invalid string the cell is reset to be empty.

It would be nice if TextSet() worked the same in both cases.

Thank you for reporting this problem. Please add the lines marked with red to the CExtGridCellComboBox::TextSet() method and recompile the library:

void CExtGridCellComboBox::TextSet(
 __EXT_MFC_SAFE_LPCTSTR str, // = __EXT_MFC_SAFE_LPCTSTR(NULL) // empty text
 bool bAllowChangeDataType // = false
 )
{
 ASSERT_VALID( this );
 CExtGridCellString::TextSet( str, bAllowChangeDataType );
 if( ! GetEnumMode() )
  return;
LONG nNewCurSel =
  FindStringExact( str );
 if( nNewCurSel < 0 )
 {
  if( _tcscmp( str, _T("") ) != 0 )
   SetCurSel( -1, true );
  return;
 }
LONG nOldCurSel =
  GetCurSel();
 if( nNewCurSel == nOldCurSel )
  return;
 SetCurSel( nNewCurSel );
}

This will fix the issue.