How to update the input parameters values if other input parameters values changing in SSRS 2005?

Hi,

Could you please help me on the below scenario in SSRS 2005

I have 4 Input parameters in the report (Country, States, Districts, Projects). Here I need all the parameters need to be selected by default in all the parameters. Assume if i go and change thecountryparameter by selecting only one value then other three parameters(States, Districts, Projects) will get updated as per the country and all should be in the selected mode only.

And once again if i go and change the States  parameter by selecting only one value, then other two parameters (Districts, Projects) will get   loaded.

The reason here is, some users will won't select any parameter as all are selected by default. just they will click on "view report" button.

and some users will select one or two parameters instead of selecting all.

and some users for specific project they will select all the parameters.

Could you help me on this if it if feasible in SSRS 2005.

Many Thanks in advance.



Thanks

Venkat.