Count Based on Parent and Region

[sakthi266]

Hi Team, 

            Good Morning. I have a Data Model like mentioned below.  WI_Link , WorkItem , WorkItemId, State, Type ,Parent are from One Table, Tree Level is from Different Table , Region ID From different Table Active is From Different Table connected with Each other in Data Model.  

Table
				-
WI_Link	WorkItem	Tree Level1	State	Type	Active	Parent	Region ID
1	1	Second (Active) 1	Parent	Active	TRUE	0	2.2
2	1.1	Parent(Active) 1	Child	Active	TRUE	1	2.2
3	1.2	Parent(Active) 1	Child	Active	TRUE	1	2.2
4	1.3	Parent(Active) 1	Child	Active	TRUE	1	2.2
5	2	Parent(Active) 2	Parent	Active	TRUE	0	2.3
6	2.1	Parent(Active) 2	Child	Active	TRUE	2	2.2
7	2.2	Parent(Active) 2	Child	Active	TRUE	2	2.3

 I need to Show the Count based on Both Parent and Region as If Select 2.2

WI Item No	Child Count
1	3
Unassigned	1

Unassigned that is Row No. 6

If I select 2.3 then it should show 

WI Item	Child Count
2	1

Note : There is a problem in Tree Level1 as for the Workitem 1 the name should be Parent(Active) 1  instead of second(Active) 1. So for this I Created a tow table mentioned below.

Parent
WI_Link	WorkItem	Tree Level1	State	Type	Active	Workitem as Parent	Region ID	Key
1	1	State-Type & WorkItem	Parent	Active	TRUE	1	2.2	1 & 2.2
5	2	State-Type & WorkItem	Parent	Active	TRUE	2	2.3	2 & 2.3
Child :
	WorkItem	Tree Level1	State	Type	Active	Parent	Region ID	Key
	1.1	State-Type & Parent	Child	Active	TRUE	1	2.2	1 & 2.2
	1.2	State-Type& Parent	Child	Active	TRUE	1	2.2	1 & 2.2
	1.3	State-Type& Parent	Child	Active	TRUE	1	2.2	1 & 2.2
	2.1	State-Type& Parent	Child	Active	TRUE	2	2.2	2 & 2.2
	2.2	State-Type	Child	Active	TRUE	2	2.3	2 & 2.3

Now the Answer is coming like this

Region 2.2
WI Item	Child Count
1	3
Unassigned	1	Not Showing in My Count as I linked with Key Field
Region 2.3
WI Item No	Child Count
2	1

Attached for the Reference. 

Please do the needful. Its very Urgent