Check keyvaluepair againt existing values in list of keyvaluepair

Question

Hello,

How can I check a new KeyValuePair against an existing list of KeyValuePair ? I want to compare for a condition to include or exclude the item. I am using vb.net 3.5

it is a nested For loop and I am deleting a datarow on the result of the condition

args = (existing list of KeyValuePAir)
For Each datarow As DataRow In ds.Tables(0).Rows
Dim args2 As KeyValuePair(Of Integer, Integer) = New KeyValuePair(Of Integer, Integer)(datarow.Item("Integer1"), datarow.Item("Integer2"))

what I want to do here is see if args2 is already contained in args if not I would delete the datarow , but I also need to search the datarow multiple times

Answer 1

Try

For Each pair As KeyValuePair In pairs 
    If pair.Key == myPair.Key And pair.Value == myPair.Value Then
         'Do stuff
    End If
Next

I am not sure whether you need to write a better equality check

Answer 2

I was able to resolve it by checking with

 If Not args.Contains(args2) Then
                        datarow.Delete()


      ds.AcceptChanges()