In my scenario i want to dispaly related tasks , after clicking on edit link of every task item I have modified Edit form of task list and added the Listview webpart of task to display related other tasks in task list in sharepoint designer (how to go for this because webpart connection provides filter only for matching columns . How to add querystring parameter(between webparts in Allitems.aspx and EditForm.aspx of task list) and I want to use Querysting with like operator for related task. any ideas. I got above error. while doing this.

What was your filter condition for Tasks list? Withouth designer you can user User Context Filter or Jquery or Web Part with hidden property. /best regards.

hi, can you give some more idea about how to go for that. or how to specify this filter condition?

Hi, Transferring parameters between Allitems.aspx and EditForm.aspx needs lots of work. You need to create your own view to set the links with parameters and your own editform.aspx to deal with parameters. I did not get how you filter the related other tasks. But, for web part connection, I have one thing to tell: after transferring parameters through web part connection, you can use a new column as matching column and get value from dealing with the corresponding column value or use jquery or something. Hope it is helpful! Seven

You can look this blog for how to use Current User Filter webPart. http://zieglers.wordpress.com/2009/02/17/how-to-filter-list-values-based-on-current-user-profile-usercontextfilter-web-part/ It's out of the box solution, you just need to have appropriate user profile property and relation to list column. Hope this helps /best regards.