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You can draw lines in the chart by creating the <AxisMarker> element tag as a child node of the <annotationElements> element tag or <backgroundElements> element tag. This sample is to show how to draw a line in the chart using <annotationElements>.

The value attribute in the <AxisLine> element tag controls the location of the line, and the label attribute in the <AxisLine> element tag can be set to display the annotation of the line.

...
  <annotationElements>
    <AxisMarker>
      <lines>
        <AxisLine value="2500" label="Goal(2,500)">
          <stroke>
            <Stroke color="#ff0000" weight="1">
          </stroke>
        </AxisLine>                      
      </lines>
    </AxisMarker>                  
  </annotationElements>
...

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