Display dynamic content in a page based on selected value in List view webpart

Question

Here's what I have in my Sharepoint 2010. A page showing a list view webpart and the related lists in separate webparts. Based on the value selected in the parent list, the child lists are populated. What I want to do now is display the selected value (the parameter that is passed to the related webparts) in a separate webpart and preferably in a format like "You have selected: ". This should keep changing with the selections.

I tried making a connection between a new list webpart and the parent list webpart and showing only the desired column - but this comes with the column name and I don't want a display like that. I also tried a CEWP but could not establish connection to it.

Any help is much appreciated.

Answer 1

In Sharepoint Designer 2010

Create and fill 2 lists:

• ParentList
• ChildListWithoutLookup
  • Id
  • Title
  • ParentId (Number of decimal places: None)

Create a web part page:
"Site Pages" --> "Web Part Page" --> give it a name

Enter editing of page
On Ribbon choose "Insert" --> "Data View" --> ParentList

"Insert" --> "Display Item Form" --> ChildListWithoutLookup

Make data connection:

On Design surface

• choose ParentList webpart --> Options (List View Tools) --> make sure "Inline editing" activated

• choose ChildListWithoutLookup web part

  • on ribbon click "Options" (List View Tools) --> "Add/Remove columns" --> make sure that only ParentID is chosen
  • Change text "ChildListWithoutLookup --> "You have chosen: "

Press F12
On clicking "Select". the corresponding parent Id is shown

Upon clicking "Select" on 1st line:

Upon clicking "Select" on 2nd line:

Update:
I believe that it is advisable to avoid messing with the Sharepoint code without extreme necessity.
If you still want to get ID in code, it is possible to extract from URL (property) using substring() after "SelectedID=" (before following "&" containing the ID of parent item on which a user pressed the button in "Select" field.