Does anyone know anything of Callbacks / Delegates in Jscript?
I have an an external DLL that provides a method I need to use that takes 2 params - a string, and an object of class"x" (according to the code completion prompt in TC).
In the documentation and sample code (typically C#, nothing JScript) I've seen in various places on line, this parameter is actually a delegate (bool) passed in as a function - which then returns a bool, and NOT an object of class "x".
Given my lack of knowledge of callbacks and delegates in JScript, it's not overly surprising that this, in my TC Jscript is erroring!
I see (again from TC code completion) that class "X" has a method "CreateDelegate" - it actually has 10 overloads of this method... but the first overload takes two params:
CreateDelegate(System.Type type, System.Reflection.MethodInfo method)
Forgive this rambling post - but if anyone can help - I'd desperately appreciate it!
In the documentation and sample code (typically C#, nothing JScript) I've seen in various places on line, this parameter is actually a delegate (bool) passed in as a function - which then returns a bool, and NOT an object of class "x".
Given my lack of knowledge of callbacks and delegates in JScript, it's not overly surprising that this, in my TC Jscript is erroring!
I see (again from TC code completion) that class "X" has a method "CreateDelegate" - it actually has 10 overloads of this method... but the first overload takes two params:
CreateDelegate(System.Type type, System.Reflection.MethodInfo method)
Forgive this rambling post - but if anyone can help - I'd desperately appreciate it!
- I don't know specifically about JScript, but VBScript for example is not strongly typed. A lot of .Net types simply do not exists in VBScript. So when I have to interface to a .NET library from VBScript, I often have to write a COM-visible wrapper library in .NET first, and call that wrapper library from my script.
' Some .NET class function that returns a List(Of String), which is incompatible with standard VBScript
Public Function DoSomethingInDotNet() As List(Of String)
' ...
End Function
' Intermediate wrapper class function that returns a type compatible with VBScript (in this case an ArrayList)
Public Function WrapDotNetFunction() As ArrayList
Return New ArrayList(DoSomethingInDotNet())
End Function
' VBScript code where you call the wrapper, which then calls the actual .NET method.
Sub Main()
Set Result = CreateObject("System.Collections.ArrayList")
Set Result = objWrapper.WrapDotNetFunction
End Sub
