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Emory
399
XamChart can draw dashed line part of the data points?
posted

Hello,

only a portion of the red line, I want to draw the dashed line.(XAML or Code-Behind)

ColumnChart2D.Series[0].DataPoints[0].Stroke = Brushes.Transparent;
ColumnChart2D.Series[0].DataPoints[0].Fill = Brushes.Red;
ColumnChart2D.Series[0].DataPoints[0].StrokeThickness = 2;

Line color and thickness could be modified in code-behind.
But,I can not change line type of the red line.

Is good in any way.
please help,post your good idea.

regards.

yung

  • 9836
    Verified Answer
    posted

    Hi Yung,

    One option is to use style but it would be applied for all of the Lines in the grid.

    <Grid.Resources>

                <Style TargetType="Line">

                    <Setter Property="StrokeDashArray" Value="5"/>

                </Style>

    </Grid.Resources>

    If you need to set this only for the first Line then you can  try to get a reference for the Line that represents the first point in the visual tree and either set the style above or use the following code:

    private void button1_Click(object sender, RoutedEventArgs e)

    {

    Line firstLine =

    Utilities.GetDescendantFromType(xamChart1, typeof(Line), false) as Line;

      

    DoubleCollection dashes = new DoubleCollection();

    dashes.Add(5);

    dashes.Add(5);

    firstLine.StrokeDashArray = dashes;

    }

    Note that the lines are generated each time when the chart is refreshed so this might be not a good option.

     

    In order to possibly get this feature into a future release, please submit a feature request here