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Offer Har
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Oct 15, 2008 - 7:01 PM
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Dear Support, I need to know if an item in a tree (a row) is visible or not. I see that the function ItemGetVisibleIndexOf can tell me if an item is collapsed or not, but I also need to know if it is within the visible part of the grid - if I have 200 rows, and only 20 are visible, I would to do some periodic checks vs the database only on these 20 items, and leave the other 180 rows to time when they are visible. Thanks, Ron.
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Technical Support
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Oct 17, 2008 - 8:51 AM
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This is provided by the CExtTreeGridWnd::ItemCopyMove() method. It can either move tree brunches or clone them. There is also another CExtTreeGridWnd::ItemCopyMoveTest() method, which allows you to determine whether you can move a tree item or not. It’s not possible to change the parent item of a tree item to its child item.
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Technical Support
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Oct 16, 2008 - 2:15 PM
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The CExtTreeGridWnd::ItemGetVisibleIndexOf() method returns a zero-based index of tree item in the entire available scrollable range of grid rows. The CExtScrollItemWnd::OnSiwGetVisibleRange() method returns ranges of visible columns and rows. The returned CRect::top and CRect::bottom values specify zero-based row indices of the first and last visible grid rows.
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Offer Har
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Oct 16, 2008 - 4:22 PM
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Great - thanks... Any way of moving a sub-tree....? my other question of that day?
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