no i dont want axis label to set vertically ,in fact i want to set charttext orientation of chart

ChartText doesn't have support for vertical orientation.  However, Annotations can be vertically oriented.  But I think the best way to do this is through a FillSceneGraph event handler:

using Infragistics.UltraChart.Resources.Appearance;
using Infragistics.UltraChart.Core.Primitives;
using Infragistics.UltraChart.Shared.Events;
using Infragistics.UltraChart.Shared.Styles;

private void ultraChart1_FillSceneGraph(object sender, FillSceneGraphEventArgs e)
{
    List<Text> newTextPrimitives = new List<Text>();
    LabelStyle labelStyle = new LabelStyle();
    labelStyle.Orientation = TextOrientation.VerticalLeftFacing;
    foreach (Primitive currentPrimitive in e.SceneGraph)
    {
        Box currentBox = currentPrimitive as Box;
        if (currentBox != null && currentBox.Row > -1 && currentBox.Column > -1)
        {
            // this is a column in the column chart
            double currentDataValue = Convert.ToDouble(currentBox.Value);
            Text newTextPrimitive = new Text(currentBox.rect, currentDataValue.ToString("0.0"), labelStyle);
            newTextPrimitives.Add(newTextPrimitive);
        }
    }
    e.SceneGraph.AddRange(newTextPrimitives.ToArray());
}