Range Selector Label Formatting

[Craig]

I have just started using the Range Selector linked to a Chart View with a Date Time Categorical axis. My issue is that I cannot seem to find the formatting setting for the date label in the Range Selector. 

Can you please help?

[Craig]

Also, how do I synchronise the palette between the Chart View and the Range Selector?

[Stefan]

Hi Craig,

Thank you for writing. 

You can use the LabelInitializing event of the AssociatedElement to access and format the labels:

((RangeSelectorViewElement)radRangeSelector1.RangeSelectorElement.AssociatedElement).LabelInitializing += new LabelInitializingEventHandler(RangeSelectorViewElement_LabelInitializing);

private void RangeSelectorViewElement_LabelInitializing(object sender, LabelInitializingEventArgs e)
{
    DateTime date = DateTime.Parse(e.LabelElement.Text);
    e.LabelElement.Text = string.Format("{0:MM yyyy}", date);
    e.LabelElement.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
    e.LabelElement.AngleTransform = 45;
}

As to the palette, here is how to access the chart element in RadRangeSelector and set its palette. The best place to do that is the Form.Load event:

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);

    RangeSelectorViewElement rangeChart = ((RangeSelectorViewElement)radRangeSelector1.RangeSelectorElement.AssociatedElement);
    rangeChart.View.Series[0].Palette = KnownPalette.Metro.GlobalEntries[0];
}

I hope this helps. 

Regards,
Stefan
Telerik