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Hello,

We are using your controls (with a valid license) since 1 month in our VS6 projects. You have said that some MFC controls (CTreeCtrl, CComboBoxEx, CListBox, CListCtrl) will never be replace by a Prof-UIS controls because for you there’s no improvement to do.

What we need, is a CTreeCtrl-derived class that support the checkboxes (like MFC CTreeCtrl does) but with a 2-states/3-states options. VS6 doesn’t support the automatic 3-states. We are using the basic method (with images) to display a 3-states checkbox in a Tree, which is correct but this solution doesn’t reflect the XP look, and in future months we planning to use/make a special skin for our products.

Is the 3-states checkboxes Tree feature is not enough for you to begin to make your Tree?
The skin-ability of your controls is also a good reason to provide equivalent controls for "all" MFC controls. Isn’t it?

Best Regards

Thank you for the interesting question. We can offer you to use CExtTreeGridWnd class as a replacement for the tree view common control. You can use any of numerous grid cell classes available in Prof-UIS in it, including CExtGridCellCheckBox, which supports three states. In comparison with the standard tree view, the grid also features multiple columns.