how to set a fields from a url sharepoint 2010

I have a list called Case,in the Case form i have the folowing hyper link

http://appserver/Lists/Hearings/I开发者_JS百科tem/newifs.aspx?List=928323ea%2Deace%2D4220%2D845c%2D84871b4f00a8&=&Case_x0020_Number=100000

if you can see at the end of the url I have the item Case Number,what I want is to make the Hearing add new form to have the value of 10000 at the Case Number

so the user don't need to re-enter the value.

but when I click that link it open the new form thing but the field corresponding to that value is blank.

Note : from the share point it self the Case Number of the Hearing is lookup from the Case Number.

is there away to accomplish this?

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You say

but when I click that link it open the new form thing but the field corresponding to that value is blank.

This happens when you click the hyperlink directly from the list view?

If you want your "Case number" field to populate dynamically you should create a calculated column, and use a formula to take the current "Case number" for the selected item. After that you can create a Hyperlink in InfoPath and navigate from the item's edit screen...

The formula for the calculated column should be something like this:

=("LocationToNavigate?queryStringParameter="&ListFiedName)