Value.AddOrUpdate Method
Adds a Value with the specified key to the Value if the key does not already exist, or updates a Value in the Value if the key already exists.
          Namespace:  TcHmiSrv.Core
Assembly:  TcHmiSrvExtNet.Core (in
TcHmiSrvExtNet.Core.dll) Version: 1.3.0.0
Syntax
C#
public void AddOrUpdate(
    string key,
    Value value
)Parameters
| key | Type: System.String | 
| value | Type: TcHmiSrv.Core.Value |