Point Shapes in Line Chart

[Pete]

Hi, is it possible to change the shape of the points in a line chart, so that for example we could have a star instead of a circle, if so how is this achieved ?

Thanks a lot,

Pete.

[Shinu]

Hi Pete,

Go through the following forum links.

Styling Chart Elements
Custom Appearance Properties

Shinu.

[Pete]

Hi, these forums don't show me how to change an individual point depending on a value, is this possible

ie ,

if (double.Parse(results.Rows[i]["ObservationValue"].ToString()) > 2)

{

RRChartSeries1.Items[i].ActiveRegion.Tooltip =

"Too HIGH";
RRChartSeries1.Items[i].Appearance.FillStyle.MainColor = System.Drawing.Color.Red;

}

and I want to set a different point shape depending on this value being true ?

[Giuseppe]

Hello Pete,

Unfortunately you cannot set different point marks for the line series items depending on their value -- you can choose a point mark figure for the whole series from the predefined values (Cross, Diamond, Circle, Rectangle, Star3, Star4, Star5, Star6) and set it like this:

<rad:RadChart ID="RadChart1" runat="server">
    <Series>
        <rad:ChartSeries DataYColumn="Value" Type="Line">
            <Appearance>
                <PointMark Figure="Cross" Visible="True">
                    <FillStyle FillType="Solid" MainColor="Yellow">
                    </FillStyle>
                </PointMark>
            </Appearance>
        </rad:ChartSeries>
    </Series>
    <PlotArea>
        <YAxis AxisMode="extended">
        </YAxis>
    </PlotArea>
</rad:RadChart>

Regards,
Manuel
the Telerik team

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[Pete]

Thanks for the fast reply. I will find another way of doing this.

[Chris]

How i can activate the predefined point shapes using vb.net code? In the manual i cannot find any informations ...

thanks chris

[Chris]

[Giuseppe]

Hello Chris,

Here is a sample VB.NET code snippet to get you started:

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Dim series As New ChartSeries()

        series.Type = ChartSeriesType.Line

        series.AddItem(5)
        series.AddItem(11)
        series.AddItem(15)
        series.AddItem(11)

        series.Appearance.PointMark.Figure = Telerik.Charting.Styles.DefaultFigures.Diamond
        series.Appearance.PointMark.Visible = True
        series.Appearance.PointMark.FillStyle.MainColor = Drawing.Color.Red
        series.Appearance.PointMark.FillStyle.FillType = Styles.FillType.Solid

        RadChart1.Series.Add(series)
    End Sub

Hope this helps.


Sincerely yours,
Manuel
the Telerik team

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