Plotting dynamic data for a graph using flot(JQuery)

Question

Hello All.......

I am new in Asp.Net Web development..........

I am working on a web form application which is using asp.net c#  and MS SQL Server 2008 as database. I want to plot a graph of trends based on time filters. I need to perform this using jquery library flot.

I want the units of trends points on y axis and date on x axis. I want to plot 4 different trends, so there will be 4 lines for 4 different trends over graph after plotting.

I know to fetch the data from db using web method, but how to collect this data?....... as a list or what & then how to format this data in to javascript function & plot the graph?

Can anybody help me to perform this?.

Thanks in advance.

- Regards