It worked.

Thanks a lot.

Regards

sanms 

You can try adding the following line:

this.ultraChart1.Axis.X.Labels.Layout.Behavior = Infragistics.UltraChart.Shared.Styles.AxisLabelLayoutBehaviors.None;

Even this did not solve my problem. You can simulate it by just copying the code below and running it for some time, say for 300 seconds..

Sorry I could not insert the output graph here.

I modified  your code to have a delay of 500ms before each draw. Because I get data from device based on a specified interval [say every second]

Also added 1 Second to dateTime after each draw.

private const int maxLabels = 15;

private Random rnd;

private DateTime dateTime;

public Form1()

{

InitializeComponent();

rnd = new Random();

}

protected override void OnLoad(EventArgs e)

{

base.OnLoad(e);

NumericTimeSeries series = new NumericTimeSeries();

this.dateTime = DateTime.Now;

this.ultraChart1.Series.Add(series);

this.ultraChart1.Axis.X.TickmarkIntervalType = Infragistics.UltraChart.Shared.Styles.AxisIntervalType.Seconds;

this.ultraChart1.Axis.X.TickmarkStyle = Infragistics.UltraChart.Shared.Styles.AxisTickStyle.DataInterval;

System.Windows.Forms.Timer timer1 = new Timer();

timer1.Interval = 500;

timer1.Tick +=new EventHandler(timer1_Tick);

timer1.Start();

}

private void timer1_Tick(object sender, EventArgs e)

{

NumericTimeSeries series = this.ultraChart1.Series[0] as NumericTimeSeries;

NumericTimeDataPoint dataPoint = new NumericTimeDataPoint(this.dateTime, rnd.Next(100), dateTime.ToString(), false);

series.Points.Add(dataPoint);

int count = series.Points.Count;

this.ultraChart1.Axis.X.TickmarkInterval = count / maxLabels;

dateTime = dateTime.AddSeconds(1);

}

In this case the code can be something like:

public partial class Form1 : Form

private Random rnd;

this.dateTime = DateTime.Now;

this.ultraChart1.Axis.X.TickmarkIntervalType = Infragistics.UltraChart.Shared.Styles.AxisIntervalType.Seconds;

int count = series.Points.Count;

Only difference is that I have to plot against time [ show date time as X - Axis label]

I am having problem if I have to display datavalues against time. Whatever problem I have is with Linechart displaying Date Time in X-Axis as label [ Instead of XYSeries and XYDataPoint Am using NumericTimeSeries and NumericDataPoint respectively ]

Is it possible to have Scatter chart displaying DateTime as labels...

I am using 8.1 version

In the code below I have tried to reproduce the problem

public partial class Form1 : Form

private Random rnd;

System.Windows.Forms.Timer timer1;

public Form1()

{

InitializeComponent();

rnd = new Random();

ultraChart1.ChartType = Infragistics.UltraChart.Shared.Styles.ChartType.LineChart;

ultraChart1.LineChart.TreatDateTimeAsString = true;ultraChart1.Axis.X.TickmarkStyle = Infragistics.UltraChart.Shared.Styles.AxisTickStyle.DataInterval;

ultraChart1.Axis.X.TickmarkInterval = 2;

ultraChart1.Axis.X.Labels.ItemFormatString = "<ITEM_LABEL>";

}

protected override void OnLoad(EventArgs e)

{

base.OnLoad(e);

NumericTimeSeries series = new NumericTimeSeries();

 

for (int i = 0; i <= 5; i++)

{

System.Threading.Thread.Sleep(500);NumericTimeDataPoint point = new NumericTimeDataPoint(DateTime.Now, rnd.Next(100), DateTime.Now.ToShortTimeString(), false);

series.Points.Add(point);

this.ultraChart1.Series.Add(series);

this.ultraChart1.Refresh();

}

ultraChart1.Axis.X.TickmarkInterval = 5;

 

int count = series.Points.Count;for (int i = 1; i <= count + 20; i++)

{

System.Threading.Thread.Sleep(500);

RepeatDraw();

}

ultraChart1.Axis.X.TickmarkInterval = 10;

 

timer1 = new Timer();

timer1.Interval = 100;

timer1.Tick += new EventHandler(timer1_Tick);

timer1.Start();

 

 

}

private void RepeatDraw()

{

NumericTimeSeries series = this.ultraChart1.Series[0] as NumericTimeSeries;NumericTimeDataPoint point = new NumericTimeDataPoint(DateTime.Now, rnd.Next(100), DateTime.Now.ToShortTimeString(), false);

series.Points.Add(point);

this.ultraChart1.Series.Add(series);

this.ultraChart1.Refresh();

}

private void timer1_Tick(object sender, EventArgs e)

{

 

NumericTimeSeries series = this.ultraChart1.Series[0] as NumericTimeSeries;

int count = series.Points.Count;

for (int i = 1; i <= count + 200; i++)

{

NumericTimeDataPoint point = new NumericTimeDataPoint(DateTime.Now, rnd.Next(100), DateTime.Now.ToShortTimeString(), false);

series.Points.Add(point);

this.ultraChart1.Series.Add(series);this.ultraChart1.Refresh();

 

 

}

timer1.Stop();

 

 

}