How to use the caseccading parameter in my ssrs report? with some scenioro?

Question

Hi i have a complex report for that i am using the 3/4 parameters name list.
parm1:ProductId
parme2:manafacturer
pram3:productname
so here i will use these 3 paramters in my ssrs report .
so here i will create a casecading parameters using the above 3 parameters.
But here my requirement is..
1)for my user selcction select the paramater1  as ProductId based on the productID parameter the 2 nd 3 paramters
i want to display automatically without user selection
2),Here every productid have a single productName and single manfacturer
 and here i dnt need the drop down list of 2 nd 3rd parameter for user selection. i need only the text boxes
4)am alredy tried for this but i will able to see only one value in the user selection of param1.but it would not change for the second selection
5)can you give me some idea hw would i show u 2nd and 3rd parameteer based on 1st paramter value without drop down list for my user seletion of my first parametr1
I guess u understand my requirement.
can you suggest me any help .....for the above requirement.
ThanX!

Answer 1

In your case you need to setup parameters like this
1. ProductId
Have a dataset which gives you list of productids. It should return atleast one field which would be the distinct productids from your table. 
ie like
SELECT ProductID
FROM ProductTable
assuming ProductID is it Primary key
In report go to parameter properties for ProductId parameter
In Available Values tab choose the option Get values from query
Map the above dataset and choose value field name as ProductId and label also as the same
This will populate param 1 with values
2. Manufacturer
Have a dataset which gives you list of manufacturers. It should return atleast one field which would be the distinct manufacturer from your table. 
ie like
SELECT Manufacturer
FROM ManufacturerTable m
WHERE EXISTS (SELECT 1
FROM ProductTable
WHERE ProductId = @ProductId
AND Manufacturer = m.Manufacturer
assuming Manufacturer field has unique values. map @ProductId query parameter to SSRS parameter ProductId you created above
In report go to parameter properties for Manufacturer parameter and map the parameter to dataset as per same sequence of steps before
3. Product
Have a dataset which gives you list of manufacturers. It should return atleast one field which would be the distinct manufacturer from your table. 
ie like
SELECT ProductName
FROM ProductTable m
WHERE ProductId = @ProductId
assuming Manufacturer field has unique values. map @ProductId query parameter to SSRS parameter ProductId you created above
In report go to parameter properties for ProductName parameter and map the parameter to dataset as per same sequence of steps before
Now if you run the report the values for Manufacturer and ProductName keeps on changing based on value you chose for productid parameter
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Visakh
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