Interference with the drag & drop on MC ListBox

LV 2010, Win 7

I have a Drag and Drop interface, where the user drags elements from one part of the window on a multicolumn ListBox, in order to build a result of type worksheet.

The format they're building is known and that they can apply to multiple data files in the future.

They can also drag rows around to rearrange their and columns around too, once they are placed.

It's everything works fine, EXCEPT:

If the text in a given cell listbox is longer than the width of the cell, the text is partially hidden.  It is very good.

If you move the mouse over the cell, something like a 'tip-band' opens and displays the full text.  It is very good.

BUT

This band of advanced interfere with dragging something.  When you click, you click on the BAND, not the list box.

As a result, the DEPARTURE of DRAG? event never gets called and then you can not drag.

You can see in this JING :

I drag a few items on the OK sheet.

I can drag down TIME line and put it somewhere else.

But I can't drag the item with the band on this subject.

Notice that I CAN drag this line, by entering the number which has no band that covers. (My code allows you to drag a line by clicking anywhere on the line, except for the symbol).

If you try hard you can move the mouse on a cell, click on before the band gets up and do it very well.

Thus, the code works fine.

I checked do DRAG from? is not called, if there is a band under the mouse.

What can I do about it?  I have not found a way to disable this band. Indeed, it is useful.

But I don't think that is a command I can get events from.

So I have no way of knowing if she is released or not.


Tags: NI Software

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