I'd personally use a scale transform rather than star values. It would allow you to bind the ScaleY property to a view model property with the value to display however, so no need for code-behind.
Chris On 2 July 2010 08:38, Xerxes Battiwalla <[email protected]> wrote: > Hi everyone, > > This week we've needed to create a gauge control which is used to indicate > positive values by filling a bar from the middle of the gauge upward, and > negative values from the middle downward. A picture is worth a thousand > words, so here's a QnD of what the control should do: > http://www.xerxesb.com/wp-content/uploads/2010/07/gauges.png > > The first gauge shows the control in its initial state. When the user > presses the up arrow, the control increases in single increments (as in the > second gauge) and when they press down it goes in reverse (third gauge) > > We managed to do it, but I wanted to canvas how everyone else would > implement the same control? > > Our implementation basically used a fill for the green bit, and placed it > inside a grid with two rows (the grid was only half the size of the whole > bar, and by default positioned to the entire height of the positive side of > the gauge). The fill's size was set to take up the entire bottom row, and we > then had some code in the code-behind to set the size of both rows using > star values. If the value was negative we then apply a RenderTransform to > flip the fill upside down. It works, but feels kludgy. Was hoping there is a > XAML only way of doing something like this? > > Cheers, > Xerx > > _______________________________________________ > ozwpf mailing list > [email protected] > http://prdlxvm0001.codify.net/mailman/listinfo/ozwpf > >
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