Steema Central

Posted: **Thu Nov 19, 2009 9:26 am**

Hello, When i want to show a datetime object on the x-axis, it starts at 1899.

See the attachment how it looks.

Source code looks like this.

ObservableCollection<Gensys.Widget.ObjectsAndMessages.ObjectsAndMessagesModel.MessageData> col = new ObservableCollection<ObjectsAndMessagesModel.MessageData>();
Steema.TeeChart.WPF.Styles.Bar barSeries;
tchart.Chart.Series.Add(barSeries = new Steema.TeeChart.WPF.Styles.Bar());

barSeries.XValues.DateTime = true;
barSeries.XValues.DataMember = "Date";
barSeries.YValues.DataMember = "TotalTickets";

int counter = 0;
List<MessageData> messageData = _objectsAndMessagesModel.MessageList.Where(m => m.Date == time).ToList();
foreach (MessageData data in messageData)
{
barSeries.Add(data.TotalTickets);
barSeries[counter].Color = GetMessageTypeColor(data.MessageType);
counter++;

col.Add(data);
}

barSeries.DataSource = col;

barSeries.XValues.DataMember = "Date";
I bind to the date property that is located inan other class, but the datacontext is set to an instance of that class and the datasource is set to the observablecollection where data is located.

How can i fix this?

the barchart is selfstacked btw.

Posted: **Thu Nov 19, 2009 12:43 pm**

Hello SPS,

I recommend that see on Tutorial number 4 Axis Control.,specifically see in Increment, Where you can find some examples of when to use date times. If it isn't don't hesitate to let us know.

I hope will helps.

Thanks,

Posted: **Thu Nov 19, 2009 1:29 pm**

Hello,

thank you for your reply, but i dont think thats the answer, because when i change the multibar to stacked or something else then selfstack, then the x-axis will show the correct dates. But i want i to be set at selfstack. I think it is a bug when using the selfstack option

Posted: **Thu Nov 19, 2009 3:41 pm**

Hi SPS,

I've tried to reproduce it with the following code but coudln't:

Code: Select all

        private void InitializeChart()
        {
            //tChart1.Aspect.View3D = false;

            for (int i = 0; i < 5; i++)
			{
                new Steema.TeeChart.WPF.Styles.Bar(tChart1.Chart);
                tChart1[i].XValues.DateTime = true;
                tChart1[i].FillSampleValues(5);
			}
            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Steema.TeeChart.WPF.Styles.Bar bar1 = tChart1[0] as Steema.TeeChart.WPF.Styles.Bar;
            if (bar1.MultiBar == Steema.TeeChart.WPF.Styles.MultiBars.Stacked)
                bar1.MultiBar = Steema.TeeChart.WPF.Styles.MultiBars.Side;
            else
                bar1.MultiBar = Steema.TeeChart.WPF.Styles.MultiBars.Stacked;
        }

Could you please modify it until the problem can be reproduced? Or could you send us a simple example project we can run as-is to reproduce the problem here?

Steema Central

Barchart, datetime on x-axis

Barchart, datetime on x-axis

Re: Barchart, datetime on x-axis

Re: Barchart, datetime on x-axis

Re: Barchart, datetime on x-axis