Gantt color does not change..

MU · Post by MU » Mon Jul 14, 2008 7:32 am

Hi..
I use "TeeChart 2.0.3033.18431" in a web application (Steema.TeeChart.Chart). The Datasource is defined for a gannt (X,Y,start,end,nexttask,color). Everything is ok except the color of the gantts. they are always beeing shown in standard colors (~orange & ~red). But wenn I use the same code in a normal windows form (with Steema.TeeChart.TChart) then works everything normal..
Do you have any idea?Thanks...

Narcís · Post by **Narcís** » Mon Jul 14, 2008 8:00 am

Hi MU,

This works fine for me here using this code:

Code: Select all

		Steema.TeeChart.Styles.Gantt gantt1 = new Steema.TeeChart.Styles.Gantt(WebChart1.Chart);

		gantt1.Add(DateTime.Parse("14/07/2008"), DateTime.Parse("18/07/2008"), 0, System.Drawing.Color.Yellow);
		gantt1.Add(DateTime.Parse("13/07/2008"), DateTime.Parse("15/07/2008"), 1, System.Drawing.Color.Red);
		gantt1.Add(DateTime.Parse("16/07/2008"), DateTime.Parse("19/07/2008"), 2, System.Drawing.Color.Blue);
		gantt1.Add(DateTime.Parse("12/07/2008"), DateTime.Parse("16/07/2008"), 3, System.Drawing.Color.Green);
		gantt1.Add(DateTime.Parse("13/07/2008"), DateTime.Parse("17/07/2008"), 4, System.Drawing.Color.White);

Could you please modify it or send a simple example project we can run "as-is" to reproduce the problem here? You could reproduce datasource as in the example Christopher Ireland posted here.

You can either post your files at news://www.steema.net/steema.public.attachments newsgroup or at our upload page.

Thanks in advance.

MU · Post by MU » Mon Jul 14, 2008 8:44 am

Hi Narcis...
I used the ShowSeries.aspx...

Code: Select all

chart= new Chart();
        
            
            /*
            //Datatable
            DataTable table = new DataTable();
            table.Columns.Add("Label", typeof(string));
            table.Columns.Add("Y", typeof(int));
            table.Columns.Add("Next", typeof(int));            
            table.Columns.Add("Start", typeof(DateTime));
            table.Columns.Add("End", typeof(DateTime));            
            table.Columns.Add("ColorTask", typeof(Color));
            */

        
          

            //Add Series to Chart

           
                switch (Request.QueryString["seriestype"])
                {

                    case "Line": chart.Series.Add(new Steema.TeeChart.Styles.Line());
                        chart.Series.Add(new Steema.TeeChart.Styles.Line()); break;
                    case "Bar": chart.Series.Add(new Steema.TeeChart.Styles.Bar()); break;
                    case "HorizBar": chart.Series.Add(new Steema.TeeChart.Styles.HorizBar()); break;
                    case "Area": chart.Series.Add(new Steema.TeeChart.Styles.Area()); break;
                    case "Point": chart.Series.Add(new Steema.TeeChart.Styles.Points()); break;
                    case "Surface": chart.Series.Add(new Steema.TeeChart.Styles.Surface()); break;
                    case "Gantt":


                        if (Session["ProjectTable"] != null)//datasource
                        {
                            
                            Gantt gannt = new Gantt();                           
                            DataTable table = (DataTable)Session["ProjectTable"];
                            gannt.ColorEach = false;
                            

                            gannt.DataSource = table;

                            gannt.EndValues.DataMember = "End";
                            gannt.EndValues.DateTime = true;

                            gannt.LabelMember = "Label";
                            gannt.NextTasks.DataMember = "Next";

                            gannt.StartValues.DataMember = "Start";
                            gannt.StartValues.DateTime = true;

                            

                            gannt.XValues.DataMember = "Start";
                            gannt.XValues.DateTime = true;

                            gannt.YValues.DataMember = "Y";
                            gannt.ColorMember = "ColorTask";
                            gannt.Title = "Title...";

                            gannt.LinePen.Width = 2;
                            gannt.LinePen.Color = Color.Green;

                            gannt.CheckDataSource();
                            chart.Series.Add(gannt);
                        }
                }

As I said everything is ok except the color (in asp.net).
it works windows for with Steema.Teechart.TChart.

Narcís · Post by **Narcís** » Mon Jul 14, 2008 9:09 am

Hi MU,

Have you tried setting ColorEach property to true instead of false as in the code snippet you posted?

Code below works fine for me here:

Code: Select all

	protected void Page_Load(object sender, EventArgs e)
	{
		DataTable table = new DataTable();
		table.Columns.Add("Label", typeof(string));
		table.Columns.Add("Y", typeof(int));
		table.Columns.Add("Next", typeof(int));
		table.Columns.Add("Start", typeof(DateTime));
		table.Columns.Add("End", typeof(DateTime));
		table.Columns.Add("ColorTask", typeof(Color));

		DataRow dataRow;

		dataRow = table.NewRow();
		dataRow[0] = "Project 1";
		dataRow[1] = 1;
		dataRow[2] = 2;
		dataRow[3] = DateTime.Parse("14/07/2008");
		dataRow[4] = DateTime.Parse("18/07/2008"); ;
		dataRow[5] = System.Drawing.Color.Red;
		table.Rows.Add(dataRow);

		dataRow = table.NewRow();
		dataRow[0] = "Project 2";
		dataRow[1] = 2;
		dataRow[2] = 3;
		dataRow[3] = DateTime.Parse("16/07/2008");
		dataRow[4] = DateTime.Parse("20/07/2008"); ;
		dataRow[5] = System.Drawing.Color.Blue;
		table.Rows.Add(dataRow);

		dataRow = table.NewRow();
		dataRow[0] = "Project 3";
		dataRow[1] = 3;
		dataRow[2] = -1;
		dataRow[3] = DateTime.Parse("23/07/2008");
		dataRow[4] = DateTime.Parse("30/07/2008"); ;
		dataRow[5] = System.Drawing.Color.Yellow;
		table.Rows.Add(dataRow);

		dataRow = table.NewRow();
		dataRow[0] = "Project 4";
		dataRow[1] = 4;
		dataRow[2] = -1;
		dataRow[3] = DateTime.Parse("25/07/2008");
		dataRow[4] = DateTime.Parse("28/07/2008"); ;
		dataRow[5] = System.Drawing.Color.Green;
		table.Rows.Add(dataRow); 


		Steema.TeeChart.Styles.Gantt gantt = new Steema.TeeChart.Styles.Gantt(WebChart1.Chart);
		//gantt.ColorEach = false;

		gantt.DataSource = table;

		gantt.EndValues.DataMember = "End";
		gantt.EndValues.DateTime = true;

		gantt.LabelMember = "Label";
		gantt.NextTasks.DataMember = "Next";

		gantt.StartValues.DataMember = "Start";
		gantt.StartValues.DateTime = true;

		gantt.XValues.DataMember = "Start";
		gantt.XValues.DateTime = true;

		gantt.YValues.DataMember = "Y";
		gantt.ColorMember = "ColorTask";
		gantt.Title = "Title...";

		gantt.LinePen.Width = 2;
		gantt.LinePen.Color = Color.Green;

		gantt.CheckDataSource();
	}

MU · Post by MU » Mon Jul 14, 2008 12:41 pm

The problem is probably something different. Actually my code and your code are working. but wenn I use the Seesion in order to send the datatable to the Series.aspx page, the colors are not received. I dont know why (The are empty)
Thank you..

Narcís · Post by **Narcís** » Mon Jul 14, 2008 12:47 pm

Hi MU,

In that case you can try storing and retrieving session variables as in the Zooming example at the live ASP.NET demo.

If this doesn't help please send us a simple example project we can run "as-is" to reproduce the problem here.

Thanks in advance.

Narcís · Post by **Narcís** » Mon Jul 14, 2008 1:48 pm

Hi MU.

As an upgrade, code below works fine for me here. Could you please check if it works fine at your end?

Code: Select all

	protected void Page_Load(object sender, EventArgs e)
	{
		if (Session["ProjectTable"] == null)
		{
			DataTable table = new DataTable();
			table.Columns.Add("Label", typeof(string));
			table.Columns.Add("Y", typeof(int));
			table.Columns.Add("Next", typeof(int));
			table.Columns.Add("Start", typeof(DateTime));
			table.Columns.Add("End", typeof(DateTime));
			table.Columns.Add("ColorTask", typeof(Color));

			DataRow dataRow;

			dataRow = table.NewRow();
			dataRow[0] = "Project 1";
			dataRow[1] = 1;
			dataRow[2] = 2;
			dataRow[3] = DateTime.Parse("14/07/2008");
			dataRow[4] = DateTime.Parse("18/07/2008"); ;
			dataRow[5] = System.Drawing.Color.Red;
			table.Rows.Add(dataRow);

			dataRow = table.NewRow();
			dataRow[0] = "Project 2";
			dataRow[1] = 2;
			dataRow[2] = 3;
			dataRow[3] = DateTime.Parse("16/07/2008");
			dataRow[4] = DateTime.Parse("20/07/2008"); ;
			dataRow[5] = System.Drawing.Color.Blue;
			table.Rows.Add(dataRow);

			dataRow = table.NewRow();
			dataRow[0] = "Project 3";
			dataRow[1] = 3;
			dataRow[2] = -1;
			dataRow[3] = DateTime.Parse("23/07/2008");
			dataRow[4] = DateTime.Parse("30/07/2008"); ;
			dataRow[5] = System.Drawing.Color.Yellow;
			table.Rows.Add(dataRow);

			dataRow = table.NewRow();
			dataRow[0] = "Project 4";
			dataRow[1] = 4;
			dataRow[2] = -1;
			dataRow[3] = DateTime.Parse("25/07/2008");
			dataRow[4] = DateTime.Parse("28/07/2008"); ;
			dataRow[5] = System.Drawing.Color.Green;
			table.Rows.Add(dataRow);

			Session.Add("ProjectTable", table);
		}

		Steema.TeeChart.Styles.Gantt gantt = new Steema.TeeChart.Styles.Gantt(WebChart1.Chart);
		//gantt.ColorEach = false;

		DataTable sessionTable = (DataTable)Session["ProjectTable"];
		gantt.DataSource = sessionTable;

		gantt.EndValues.DataMember = "End";
		gantt.EndValues.DateTime = true;

		gantt.LabelMember = "Label";
		gantt.NextTasks.DataMember = "Next";

		gantt.StartValues.DataMember = "Start";
		gantt.StartValues.DateTime = true;

		gantt.XValues.DataMember = "Start";
		gantt.XValues.DateTime = true;

		gantt.YValues.DataMember = "Y";
		gantt.ColorMember = "ColorTask";
		gantt.Title = "Title...";

		gantt.LinePen.Width = 2;
		gantt.LinePen.Color = Color.Green;

		gantt.CheckDataSource();
	}