How to hide the x-axis scale and show a user custom label?

[PEIYANG]

At first the x-axis is show scale ( 5,6,7,8,9,10,11) normally, now I want to hide the scale axis,and use "A" to replace 5,and use "B" to replace 10 as x-axis label? How to do that? This is the picture:https://www.yousendit.com/download/TEhXTG0rcTJwaFF3anNUQw

This is my code,but seems wrong.

this.RadChart1.DefaultView.ChartArea.AxisX.AxisLabelsVisibility = Visibility.Collapsed;
             for (int i = 0; i < RadChart1.SeriesMappings.Count; i++)
             for(int j=0;j< RadChart1.SeriesMappings[i].ItemMappings.Count;j++)
             {
                 //if( RadChart1.SeriesMappings[i].ItemMappings[j]
                // RadChart1.SeriesMappings[i].ItemMappings[j].DataPointMember.ToString();
                 if(??==5)
                     ??.xlabel="A";
             }

[Petar Kirov]

Hi Peiyang,

If you don't need to know the exact XValue-s of the data points (and want only A, B, C... to be shown for each item on the X Axis) then you don't need to specify ItemMapping for the XValue, and on the DataBound you can set each of the datapoints an XCategory value of A, B, C, etc.

radChart.DataBound += new EventHandler<ChartDataBoundEventArgs>(chart_DataBound);

void chart_DataBound(object sender, ChartDataBoundEventArgs e)
{
    char c = 'A';

    foreach (var item in chart.DefaultView.ChartArea.DataSeries[0])
    {
        item.XCategory = "" + c;
        c++;
    }
}

Or you can listen to the RangeChanged event of the Axis X and change the TickMark labels:

chart.DefaultView.ChartArea.AxisX.RangeChanged +=new EventHandler(AxisX_RangeChanged);

void AxisX_RangeChanged(object sender, EventArgs e)
{
    char c = 'A';

    foreach (var item in chart.DefaultView.ChartArea.AxisX.TickPoints)
    {
        item.Label = "" + c;
        c++;
    }
}

 I hope this helps.

All the best,
Petar Kirov
the Telerik team