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POHow to do aligned scrolling through two chart areas without using AlignToChartArea?
 

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  1. POHow to do aligned scrolling through two chart areas without using AlignToChartArea?
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    <p>I have two <code>ChartArea</code> objects in a <code>Chart</code> (<code>System.Windows.Forms.DataVisualization.Charting</code> is what I'm using).</p> <p>One is a Point graph, and the other is a RangeBar graph. The horizontal axis on the RangeBar graph is actually the Y axis, so I <em>cannot</em> just use something like this:</p> <pre><code>Chart1.ChartAreas["Chart Area 2"].AlignWithChartArea = "Default"; </code></pre> <p>I've figured out how to zoom both charts and keep them aligned, but when I try to scroll both charts by clicking on the scrollbar on one of the horizontal axes, I can't quite get it to line up. They <em>almost</em> line up, but they're off by maybe a second or so (the horizontal axis in both graphs is time).</p> <p>Here's what I have:</p> <pre><code>private void theChart_AxisViewChanged(object sender, ViewEventArgs e) { if (e.ChartArea == theChart.ChartAreas["MyPointChartArea"]) { theChart.ChartAreas["MyRangeBarChartArea"].AxisY.ScaleView.Position = e.NewPosition; theChart.ChartAreas["MyRangeBarChartArea"].AxisY.ScaleView.Size = e.NewSize; theChart.ChartAreas["MyRangeBarChartArea"].AxisY.ScaleView.SizeType = e.NewSizeType; } if (e.ChartArea == theChart.ChartAreas["MyRangeBarChartArea"]) { theChart.ChartAreas["MyPointChartArea"].AxisX.ScaleView.Position = e.NewPosition; theChart.ChartAreas["MyPointChartArea"].AxisX.ScaleView.Size = e.NewSize; theChart.ChartAreas["MyPointChartArea"].AxisX.ScaleView.SizeType = e.NewSizeType; } } </code></pre> <p>What else do I need to do to get the charts to line up? The physical extent of the charts is the same. It's just the data that are slightly misaligned.</p> <p>Thanks for any help.</p>
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