Hi, I tried to write the following description for my issue, let me know if I managed to clarify my need or I should rephrase it. I will try to attach the desired graph

"Let s suppose my graph is for the period of datetime: 06/01/2011 at 12:00 to 06/01/2011 at 23:00

I Have one datetime X_axis representing both hours and minutes within the hours. Each 2 consecutive hours have only one single minute date time within them. For example, for the hours: 13h and 14h, there is only one specific minute Datetime: " 13h:47" for example holding the corresponding peak value of the range: 13h to 14h

so the x_axis goes like this: 12h, 12:35, 13h, 13h47, 14h, 14:53 ...etc. The datetime column in my datatable is called: Date

Now for the Y_values, there are 2 datatable columns (that s why I will have 2 graphs/orange graphs)

One column is called: HourValue holding the values for the consecutive hours DateTimes: 12h, 13h, 14h, 15h ...etc, the values are numeric values: 16543, 12345, 98765 ... for example

So in order not to alter my hours graph, I set  in my data table the column HourValue to NULL for the date values :  12:35, 13h47, 14:53 ...etc of my Date column

The second graph is representing the Datatable column MinuteValue and this column holds the values for the Dates: 12:35, 13h47, 14:53 ...etc

Therefore, I set in my datatable, the column MinuteValue to  Null for the dates: 12h, 13h, 14h, 15h...etc so that my minutes graph won'be altered by the hours values

In other way: the hours graph will have only the hours' corresponding values and the minutes graph will have only the minutes' corresponding values.

The last requirement is: the hours graph will be lines connecting the values of the different hours, and the minutes graph will be scattered bold dots spread, NO LINES  connecting the different minute values

p.s: please ignore the blue graph, only look at the 2 orange graphs where the 1st orange graph is for the hours and the second orange graph is for the minutes"

sorry one last thing, the hours graph has each value correspinding to the hour datetime set to bold, like the Y-value for the hour 13h is bold and lines connecting the hours 13h to 14h is thin line.

Thanks a lot for looking at this, it will be big help

Thanks a lot Maya, I appreciate your help. would u have a simple/sample for the composite chart with one graph as scattered dots and the 2nd graph will be regular line chart , I guess ?? , i found the sample in the samples a little complicated for me :( 

Thanks

Thanks a lot Maya :)