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I have a realy sshort question.

How can you Change the y value from a DataPoint. i know how to manualy set the y value. i just go to Chart2 > Series > Series1 > Points and there they are DataPoints I added 19 points so i was wondering how i can make it so when i press a button then DataPoint 0 the Yvalue is Textbox1.text etc

i tought it would be something like

chart2.series("Dagloon").Point.DataPoint.Yvalue = textbox1.text

but that doesnt realy work.

user3588568
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2 Answers2

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chart2.series("Dagloon").Point.DataPoint.Yvalue(0) = textbox1.text

Convert textbox1.text to double

Louis van Tonder
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user3906921
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Try this,

Chart2.Series("Dagloon").Points.AddY(Convert.ToDouble(textbox1.text))

Hope this helps.

Miki Gajjar
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  • I don't think that's what he wants because this adds a new x point but doesn't set "DataPoint 0 (ie. x point 0) the Yvalue". – Doug Null Aug 29 '19 at 21:10