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exception in v1.7.1.5

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T O P I C R E V I E W
scl1688scl	Posted - 18 Mar 2009 : 09:24:06 hi, my demo runs a exception in v1.7.1.5,but very smooth in v1.7.1.4, mybe it's the bug of v1.7.1.5. ************ exception ************ System.IndexOutOfRangeException: at com.quinncurtis.spcchartnet.SPCControlChartData.GetCalculatedValue(Int32 row, Int32 column) at com.quinncurtis.spcchartnet.SPCChartBase.DisplayCalculatedValues() at com.quinncurtis.spcchartnet.SPCChartBase.DisplayTableData() at com.quinncurtis.spcchartnet.SPCChartBase.RebuildChartUsingCurrentData() at com.quinncurtis.spcchartnet.SPCChartBase.timer1_Tick(Object sender, EventArgs e) at System.Windows.Forms.Timer.OnTick(EventArgs e) at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ----------------------------------------------------------------- thanks.
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quinncurtis	Posted - 19 Mar 2009 : 09:22:05 Thank you for the example. We are able to reproduce the problem. It is associated with enabling the scroll bar when the point count is so low that the scroll bar has no function. The scroll bar ends up being initialized with a negative range. There are a couple of things you can do. 1. Do not enable the scroll bar until you call AddNewSampleRecord enough times to produce one screens worth of data, the numdatapointsinview value in our example programs. 2. Or, set the property HScrollBarMaxValueAdjust to half the value of numdatapointsinview. this.HScrollBarMaxValueAdjust = numdatapointsinview / 2; In the meantime we will add code to disable the scroll bar until at least a screens worth of data is added to the chart.
scl1688scl	Posted - 19 Mar 2009 : 08:14:05 the demo file "BatchXBarRChart.cs" packaged in v1.7.1.5, I rewrited the "SimulateData" function: private void SimulateData() { //very simple data ... ChartCalendar timestamp = new ChartCalendar(DateTime.Now.AddHours(-1)); double[] data = new double[] { 5.1, 5.2, 5.3}; DoubleArray samples = new DoubleArray(data); this.ChartData.AddNewSampleRecord(timestamp, samples, "memo1..."); timestamp = new ChartCalendar(DateTime.Now); data = new double[] { 5.2, 5.3, 5.4 }; samples = new DoubleArray(data); this.ChartData.AddNewSampleRecord(timestamp, samples, "memo2..."); } the exception raised which described in above thread, when I comment the line "this.EnableScrollBar = true;",it runs well,it's really very strange.
quinncurtis	Posted - 18 Mar 2009 : 14:37:21 Revision 1.7.1.4 is more than one month old. Are you trying to use the trial version past the 30 day trial period? All of our example programs enable the scroll bar. Can you reproduce your problem using any of our example programs, either in their original state, or after some modification that simulates changes you made to your own demo program. If we can't reproduce the problem we are not going to be able offer any suggestions.
scl1688scl	Posted - 18 Mar 2009 : 14:17:16 trial version. I debug the program,when I remove the line "chart.EnableScrollBar = true",the exception disappears;and it raises again when I add this line.
quinncurtis	Posted - 18 Mar 2009 : 10:03:52 Sorry, but based on the limited information provided we cannot make any suggestions. Are you using the trial, or commercial version of the software? Can you reproduce the problem using any of our example programs ? Can you modify any of our example program so that they can reproduce the problem ? Quinn-Curtis Customer Support

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