Return Variable/return Parameter error in AES "Call IDO Method"

Using CSI 9.01.01 on prem. I've written an IDO Method (C#) to perform a look up. The parameters are:

string pItem, string pSource, string pCostType, ref int pYesNo

The event is firing, but I'm getting the following error:

No value was returned from IDO Method that has [IDO Name: QVI_SLItems] and [Method Name: CheckItemSourceAndCostType].
Final output parameter has value: 1

Event Name is IdoOnItemUpdate.

Event Handler Sequence is 23.

Event Action Sequence is 30.

This is how I have the call defined inside the Event:

I've tried using both RE and RV. DoesItemMatch has been declared as a Variable in the step just before this one. It should be returning either a 0 or 1. What am I doing wrong?

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Stephen Cena

I may have figured this out, but I need to rework the Event as it's now not firing properly.

I think the issue is/was that I'm attempting to return an int, not a string and that is causing the AES to choke. When I look at how variables are getting assigned, all of them are in "" which means (at least to me) that everything is a string. I'll update again once I get the Event fully working. Or if anyone else has any comments in the meantime, they are welcomed.

Stephen Cena

Nope. That wasn't it either. I'm not sure what I'm doing wrong. I have the Method declared with 3 input parameters and 1 output parameter. I've tested the IDO Method in a Form and it works as expected. When I try to use it in the AES, I get

No value was returned from IDO Method that has [IDO Name: QVI_SLItems] and [Method Name: CheckItemSourceAndCostType].
Final output parameter has value: 1

Event Name is IdoOnItemUpdate.

Event Handler Sequence is 23.

Event Action Sequence is 30.

I've tried both RV and RE. Neither works. Any help?

Stephen Cena

Ok so I found a better solution to my problem. Instead of writing an IDO method, I was able to get the same results using "Load IDO Collection" and the ROWS(id) call.

However, I would like an answer to this question as I can see there being benefits for future Events I could write.

I'll keep tinkering in my free time, but any help with this would be greatly appreciated.

Thanks in advance!

avillanueva

I had the same issue a long ago. In the end I used ref parameters in the C# method as the output, because the only return values the AES expect are 0 and 16, just like if you were calling a SP.

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Stephen Cena

That's what I have in my method definition:

string pSource, string pCostType, ref string pYesNo

Do I have to declare all 3 input parameters and then declare a return variable in the AES? How does your AES definition look?

Stephen Cena

This is my complete C# method definition:

public void CheckItemSourceAndCostType(string pItem, string pSource, string pCostType, ref string pYesNo)

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avillanueva

And this is my C# method definition

Stephen Cena

That's exactly what I had (or similar). For some reason, it doesn't like it. I may just have to try again.

0712131256598360.doc

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