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About olap--categarybar


Talisa
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I write codes like this in a botton's respondent function:

chart1.Extensions.Clear();

  chart1.Titles.Clear();

  chart1.Extensions.Remove(olap1);

  olap1 = new ChartFX.WinForms.Olap.Olap();

  ADOMD.Connect(connectStr, strQuery);

  olap1.DataSource = ADOMD;

  chart1.Extensions.Add(olap1);

  chart1.UpdateSizeNow();

"olap1" and "ADOMD" are global Variable.

Here is the problem:

After these codes performed and the chartfx renew, the categarybar disappears.

And if I click the chart several times, some bugs would appear sometimes.

What should I do ?

I will be very appreciated if anyone tell me the answer.

I need the answer badlly.

Thank you~

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