Oops Posted April 19, 2007 Report Share Posted April 19, 2007 Hello I have a requirement to make a chart which shows the daily , weekly and monthly average of some data for the same time period, as a line chart with 3 different lines for the three categories. I have all the data in 3 different datatables (and can mix them into 1 too). i tried merging all the datatables into 1 and then setting it as the datasource but without correct results. The weekly and monthly line should have points only at the start of every week and month but i couldnt get that to happen. -- Basically if im plotting 60 days then there shud be 60 points on the Day series line, 8 week points on the weeks line and 2 month points connected by the month series line..hope u get the idea .... How can this be done correctly. Am i supposed to be making different series' and If i make different series how am i supposed to populate them with date strings for the x axis and the corresponding values for the y axis? I have been through the documentation and havent found this. Really would appreciate some help on this. Many Thanks. Link to comment Share on other sites More sharing options...
Frank Posted April 19, 2007 Report Share Posted April 19, 2007 The key here is X-Values. Instead of passing string labels, you must pass X-Values for each series, in this case a DateTime. For example: // Daily data chart.Data.X[0,0] = (new DateTime(2000,1,1).ToOADate()); chart.Data.X[0,1] = (new DateTime(2000,1,2).ToOADate()); chart.Data.X[0,2] = (new DateTime(2000,1,3).ToOADate()); chart.Data.X[0,3] = (new DateTime(2000,1,4).ToOADate()); chart.Data.X[0,4] = (new DateTime(2000,1,5).ToOADate()); chart.Data.X[0,5] = (new DateTime(2000,1,6).ToOADate()); chart.Data.X[0,6] = (new DateTime(2000,1,7).ToOADate()); chart.Data.X[0,7] = (new DateTime(2000,1,8).ToOADate()); chart.Data.X[0,8] = (new DateTime(2000,1,9).ToOADate()); chart.Data.X[0,9] = (new DateTime(2000,1,10).ToOADate()); chart.Data.X[0,10] = (new DateTime(2000,1,11).ToOADate()); chart.Data.X[0,11] = (new DateTime(2000,1,12).ToOADate()); chart.Data.X[0,12] = (new DateTime(2000,1,13).ToOADate()); chart.Data.X[0,13] = (new DateTime(2000,1,14).ToOADate()); chart.Data.X[0,14] = (new DateTime(2000,1,15).ToOADate()); chart.Data.X[0,15] = (new DateTime(2000,1,16).ToOADate()); // Weekly data chart.Data.X[1,0] = (new DateTime(2000,1,1).ToOADate()); chart.Data.X[1,1] = (new DateTime(2000,1,8).ToOADate()); chart.Data.X[1,2] = (new DateTime(2000,1,15).ToOADate()); ... Databinding can also be done, your columns must be like this: Date1 DailyValue Date2 Weekly Value Link to comment Share on other sites More sharing options...
Oops Posted April 20, 2007 Author Report Share Posted April 20, 2007 Thanks that did the trick Link to comment Share on other sites More sharing options...
Frank Posted April 20, 2007 Report Share Posted April 20, 2007 Excellent! Link to comment Share on other sites More sharing options...
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