At design time, you can use True DBList's visual editing mode to perform the following tasks:
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Add and remove columns.
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Copy columns to and from the Clipboard.
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Move and resize columns.
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Adjust the list's row height.
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Retrieve field layouts from a bound data source.
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Split the list into separate vertical scrolling regions.
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Save the current list layout to a file.
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Load an existing list layout from a file.
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Access the list's property pages.
To enter visual editing mode, click anywhere on the list with the right mouse button to display the list's context menu, then choose the Edit command.
The list control is now activated in-place, which means that you can work with its columns directly on the form. For example, if you point to a dividing line between two columns, the mouse pointer changes to the following symbol.
This indicates that the column you are pointing to is ready to be resized. If you drag the dividing line to a different position, the column will change its width accordingly, and the list will reposition any adjacent columns.
Similarly, if you point to a column header, the mouse pointer changes again.
This symbol indicates that the column is ready to be selected. If you click its header, the entire column is highlighted. You can also drag the mouse pointer within the column header area to extend the selection to other adjacent columns. To cancel the selection and return the columns to their normal, unhighlighted state, click any cell within the list's data area.
Column selection serves two purposes in visual editing mode:
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Selected columns can be moved to a different position within the list by dragging within the column header (provided that AllowColMove is True for the current split).
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Selected columns act as arguments for some visual editing menu commands.
If the list is already in visual editing mode, right-clicking it again displays a different context menu. This is the visual editing menu, which provides commands for manipulating columns, splits, and layouts.
For more information on visual editing, as well as an explanation of the visual editing menu commands, see Design Time Interaction.