Good evening!
Sample project, covered this message theme is attached to the mail. Screenshot that illustrates problem is attached too.
I went into task of displaying multiline text in DBGrid cells and have success, but some features of the DBGrid scrolling is out of my understanding.
If describe problem in short it lies in strange scrolling behaviour - sometimes, selected row may be invisible for user, because it locates under DBGrid
viewport or DBGrid can fill with records only half of visible area*. * *
*
The code is very simple to understand:
1. TMyDBGrid is descendant of TCustomDBGrid, that overrides PrepareCanvas procedure
2. Within PrepareCanvas routine I set TextStyle with SingleLine=False and WrodBreak=True fields and also calculate dimentions of rectangle that can hold multiline cell text.
3. Height of text I strore in corresponding element of RowHeights array.
All text appears multiline and well formated, but if you look at screenshot the two facts are obvious: selected row can be displayed under the bottom of the visible part of grid and grid itself sometimes displayed half filled.
So, the problem now: what things should I change to have correct scrolling.
Best Regards, Andrey Smyntyna
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