Error While Adding Json Strings To a List

[Anju_CP]

I was trying to populate a list with String which is in a Json format.

The screenshots are above. The JStr variable type is String and ListofJsonString is List of Strings.

Here I tried to Add/Append JStr to the list but it is giving error like this

What could be the reason for this and how to resolve this issue.

[MohammedShabbir (shabbir.qs)]

Use the below method to solve your issue.

Just use invoke method activity.

• TargetObject: ListOfJsonString
• MethodName: Add
  Pass Parameters
• Direction: In
• Type: String
• Value: JStr

Hope this solves your issue.

[prashant1603765 (Prashant Kumar)]

Hi @Anju_CP

The error happens because the list is not initialized- fix it by intialize pls
ListofJsonString = New List(Of String)
before using .Add(JStr).

Happy Automation

[ashokkarale]

@Anju_CP

You can’t add list items using assign activity. Use Append Item to Collection Activity for this.

Make sure you initialize the listvariable before adding an item using ListofJsonString = New List(Of String)

[Anju_CP]

Hi @prashant1603765

Thank you for the response.

Initalization is already that was not the issue.

[Anju_CP]

Thank you @MohammedShabbir ,

Invoke method resolved the issue.