Correct me if I'm wrong here, but that would then mean the vm has to know the height of the control in order to set the correct proportion? Using star values at least means the vm only has to know about ratios and proportions, not absolute heights
sent from my phone On 2 Jul 2010 08:49, "Chris Anderson" <[email protected]> wrote: > 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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