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X-Axis as a string

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Chart
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Richard
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Richard asked on 09 Jan 2009, 10:29 AM
Hi

I am trying to do a simple bar chart showing the following data;

Group               Value

Group 1 140.30
Group 2   5.00
Group 3          81.70

I wish to have the above groups as labels in the x-asis, but the barchart always shows 1,2,3

Can you please give me a simple example on how to achieve the above.

Regards

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Velin
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answered on 09 Jan 2009, 05:12 PM
Hi Richard,

After you have added your DataSeries to the ChartArea you can manually access the AxisX.TickPoints collection and set a custom label to any TickPoint within. This could be accomplished with code like this:

            string[] groups = new string[] { "Group1", "Group2", "Group3" }; 
 
            this.RadChart1.DefaultView.ChartArea.DataSeries.Add(series); 
            TickPointCollection tickPoints = RadChart1.DefaultView.ChartArea.AxisX.TickPoints; 
 
            foreach (TickPoint point in tickPoints) 
            { 
                point.Label = groups[tickPoints.IndexOf(point)]; 
            } 

Hope this will help.

Kind regards,
Velin
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Richard
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answered on 10 Jan 2009, 10:02 AM
Hi Velin

This worked fine many thanks!

Regards
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Jayesh
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answered on 10 Feb 2009, 09:44 AM

Hi

 

I am using RadControls for Winforms Q1 2008 SP1. TickPointCollection does not seem to be present in this release. Is there another way to change the X-Axis labels in this release?

Regards
Jashin

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Velin
Telerik team
answered on 10 Feb 2009, 02:21 PM
Hi Jashin,

First, I would like to inform you that there is a separate forum for questions related to RadChart for WinForms as it a completely different product. Please consider writing your future questions here. Thank you.

And onto your question -- if you are populating RadChart X axis manually, the items are available in RadChart1.PlotArea.XAxis.Items collection. However, if you use the default AutoScale=true setting, the items will be auto-generated and available in the BeforeLayout event handler:

        foreach (ChartAxisItem item in RadChart1.PlotArea.XAxis.Items) 
        { 
            item.TextBlock.Text = "Custom Axis Label"
        } 

Hope this helps.

Regards,
Velin
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Nick
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answered on 13 Mar 2009, 03:02 PM
Is there any way of fomatting the string on the X axis so that the string is virtical - I have around 60 points with very long labels. It just doesn't dispay well with lables over 10 characters or so?
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Velin
Telerik team
answered on 16 Mar 2009, 02:53 PM
Hi Nick,

With the Q1 2009 release of RadChart you can rotate the labels on the X axis by applying a simple style to the AxisXLabel2D control. Here is the markup:

        <Style TargetType="telerik:AxisXLabel2D"
            <Setter Property="LayoutTransform"
                <Setter.Value> 
                    <RotateTransform Angle="-90"/> 
                </Setter.Value> 
            </Setter> 
        </Style> 


Best wishes,
Velin
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Chris
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answered on 04 Jun 2009, 06:52 AM
Hi,

we using code behind example to create a chart. how can i get following done in code behind not sure how  to get to this propert from code:

following works in xamel but need to do from code

<Style TargetType="telerik:AxisXLabel2D"
            <Setter Property="LayoutTransform"
                <Setter.Value> 
                    <RotateTransform Angle="-90"/> 
                </Setter.Value> 
            </Setter> 
        </Style> 

or

 

 

<telerik:LabelFormatConverter

 

 

x:Key="labelFormatConverter" />

 

 

 

<Style

 

 

TargetType="telerik:AxisXLabel2D">

 

 

 

<Setter

 

 

Property="LayoutTransform">

 

 

 

<Setter.Value>

 

 

 

<RotateTransform

 

 

Angle="-90" />

 

 

 

</Setter.Value>

 

 

 

</Setter>

 


thx
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Velin
Telerik team
answered on 05 Jun 2009, 02:27 PM
Hi Chris,

I'm afraid the only option to modify the appearance of these elements is through a custom style defined as StaticResource. There is no public API exposing AxisXLabel2D objects as they are part of the visual tree and generated  in run time.

All the best,
Velin
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