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
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