For some background, this is related to Passing IEnumerable Variables into .NET from ColdFusion. I've changed the code to use a list instead, and have made progress, but continue to hit roadblocks when using anything other than simple data types with .NET and ColdFusion. So here's the current issue.
First, I have a .dll with the following VideoWallEvent.cs file:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace CoStar.Utilities.VideoWall
{
public class VideoWallEventActivityCollection
{
public string CountryCode { get; set; }
public DateTime ActivityDate { get; set; }
public List<VideoWallEvent> Events { get; set; }
}
public class VideoWallEvent
{
public string ID { get; set; }
public decimal Latitude { get; set; }
public decimal Longitude { get; set; }
public VideoWallEvent(string EventID, decimal EventLatitude, decimal EventLongitude)
{
ID = EventID;
Latitude = EventLatitude;
Longitude = EventLongitude;
}
}
}
I've also generated a proxy object object using JNBProxyGUI.exe
following instructions from the prior question. Give that the above dll, and the proxy jar I've generated, I run the following ColdFusion code:
<cfset UtilitiesProxy = ExpandPath("UtilitiesProxy.jar") />
<cfset CoStarUtilities = ExpandPath("CoStar.Utilities.dll") />
<cfset Paths = ArrayToList([CoStarUtilities, UtilitiesProxy])>
<cfset theEvent = CreateObject(".net", "CoStar.Utilities.VideoWall.VideoWallEvent", Paths) />
<cfset eventList = CreateObject(".net","System.Collections.Generic.List`1", Paths).init(theEvent.getDotNetClass()) />
<cfset eventList.Add(theEvent.Init("1234", javacast("bigdecimal","30.2669444"), javacast("bigdecimal","-97.7427778"))) />
<cfset eventList.Add(theEvent.Init("1235", javacast("bigdecimal","30.2669444"), javacast("bigdecimal","-97.7427778"))) />
<cfset eventCollection = CreateObject(".net", "CoStar.Utilities.VideoWall.VideoWallEventActivityCollection", CoStarUtilities) />
<cfdump var="#eventList.ToArray()#" label="Items in eventList" />
<hr />
<cfdump var="#eventCollection#" label="eventCollection" />
<cfdump var="#eventList#" label="eventList" />
<cfset eventCollection.Set_Events(eventList) />
This gives me the following output:
As you can see from the screenshot, I can successfully add items to the list, I can get the ActivityCollection object that expects a List object, but calling the Set_Events
method and passing the List throws the following error:
The Set_Events method was not found.
Either there are no methods with the specified method name and argument types
or the Set_Events method is overloaded with argument types that ColdFusion cannot
decipher reliably. ColdFusion found 0 methods that match the provided arguments.
If this is a Java object and you verified that the method exists, use the javacast
function to reduce ambiguity.
The error occurred in C:/inetpub/scribble/VideoWall/index.cfm: line 17
15 : <cfdump var="#eventList#" label="eventList" />
16 :
17 : <cfset eventCollection.Set_Events(eventList) />
So I now need help figuring out how to properly push this List into the Set_Events() method.
(From the comments)
Believe it or not it is just an assembly path problem. You have to use both files in the assembly list, not just CoStarUtilities
, ie:
<cfset eventCollection = CreateObject(".net"
, "CoStar.Utilities.VideoWall.VideoWallEventActivityCollection"
, Paths ) />