IIf in 2 data sets in SSRS

Question

I have 2 data sets in my project. 1 data set returns a String Column.
Like below

Name

Praveen
Thomas
Joseph

Another data set also returns a string column like below

CMDBNetBiosName

Praveen
Joseph

I need to compare both the columns in data sets and need to return Yes in another column if both are same, return No if both are not same. I was trying to use below IIF expression for this but receiving errors.

=IIf(Sum(Fields!Name.Value) = Sum(Fields!CMDBNetBios.Value,"DataSet2"),"Yes","No")  

I'm pretty new to SSRS. Please help me to achieve this.

Answer 1

You can try:

=IIF(
ISNOTHING(
  Lookup(
    Fields!Name.Value,Fields!CMDBNetBios.Value, Fields!CMDBNetBios.Value, "DataSet2")),
"No","Yes")

This expressions works like this: if you have a tablix set to DataSet1 you can iterate over each row in it and look up the Name field in the DataSet2 , if the Name is present in any CMDBNetBiosName row it returns Yes otherwise No .

Hope it helps.