I have 3 radtabs each one containing a radgrid. In the first tab you have all the to-be-classify registers, there can only be two types of registers ( A and R). So for example if you mark 10 registers on the first radgrid and classify them, the first radgrid rebinds (using the needDataSource event) and everything is fine, but if I change tab and look at any of the two other radgrids neither will be updated. I have to refresh the page if I want to see the changes.
In my code in the NeedDataSource event setting the DataSource for the 3 radgrids but only seems to be working for the selected radgrid (because if I change the classification from A to R in the second radgrid I wont see the registers that does not belong to this radgrid anymore but I don't see the changes on the R radgrid)
here is my code (I dont use any AjaxManager, all is being done only by Postbacks)