Sub Reports Not Linked?

Hi,

I have a main report which has 4 sub reports. In code I build a table and populate it for the main report and set it's datasource to my memory table. I then want to do the same for the sub reports in that I build a table in memory and populate it with data. I then want to set the subreports datasource to my new memory table.

For some reason I am getting missing parameter error.

Any help please,

Roger Porter