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payrollproject  
#1 Posted : Friday, January 3, 2020 5:53:59 PM(UTC)
payrollproject

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I'm using Mono C#. I'm unable to reference the CenterPoint API.

Here is the error I'm getting:
"hello.cs(19,10): error CS0246: The type or namespace name 'DataAccessAPI' could
not be found (are you missing a using directive or an assembly reference?)"

Evidently there is some DLL (or import statement?) that I'm missing.

My code is below, but I don't think the code itself is very important since the code was generated automatically from CenterPoint's data browser tool. All I'm trying to do is run it.

How do I reference your DLLs?

Code:

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using CenterPointDataBrowser;

namespace CenterPointDataBrowser
{
   public class ReportDataExample
   {
      public DataSet GetReportData()
      {
         string databaseName = "PayrollSample";
         string reportKey = "968465a0-1b3c-47b8-9b80-915ad2888037";

         // Initialize the API
         DataAccessAPI api = new DataAccessAPI();

         // Open the database
         api.OpenDatabase(databaseName); // there is an over-loaded method if you need to supply a user/name password

         // Retrieve the report
         Report report = api.GetReport(reportKey);

         // Uncomment the following line of code line if you do not want any filters 
         // If commented out, then the filters set in CP are applied.
         // report.ClearFilters(); 
         
         // Set filters (optional)
         report.SetFilterText("Filter_FirstName", TextOperators.Contains, "the");
         report.SetFilterText("Filter_LastName", TextOperators.Contains, "the");


         // Uncomment the following line of code line if you do not want any options
         // If commented out, then the options set in CP are used
         // report.ClearOptions(); 

         // Set options (optional)


         // Gather the report's data
         //
         // Note: Some reports only return the data needed to produce the report. If you want
         // to return all data, then change GetReportData(false) to GetReportData(true)
         DataSet ds =  report.GetReportData(false); 

		 // Close the database 
         api.CloseDatabase();
         return ds;
      }
      static void Main(string[] args) {
      }
   }
}

Edited by user Friday, January 3, 2020 5:57:06 PM(UTC)  | Reason: Not specified

tony  
#2 Posted : Friday, January 3, 2020 6:11:12 PM(UTC)
tony

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DataAccessAPI is in CenterPointDataBrowser.DLL.

I'm not sure how Mono C# handles references to DLLs but in Visual Studio, your project would need a Reference to that DLL. If the reference didn't exist, that would cause a compile-time error. Are you getting a compile-time error?

I found this: https://www.mono-project.com/community/help/

If it's a run-time error, then it is probably because CenterPointDataBrowser.DLL has its own set of dependencies - it requires several CenterPoint DLLs which in turn may depend on still other CenterPoint DLLs. If this is the problem, then running your code in a folder that contains the CenterPoint DLLs would probably solve the problem.

thanks 1 user thanked tony for this useful post.
payrollproject on 1/3/2020(UTC)
payrollproject  
#3 Posted : Friday, January 3, 2020 7:05:51 PM(UTC)
payrollproject

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Thanks, this is resolved. Yes, it was a compile time error.

Here's how I got it to compile. In Mono, there is an /r: option which takes a path to the DLLs. I got it to compile by supplying the /r: option with CenterPointDataBrowser.DLL

In order to figure out how to set up my project to reference all your DLLs, I will consult the Mono Project documentation you linked.
tony  
#4 Posted : Friday, January 3, 2020 7:17:03 PM(UTC)
tony

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Thanks for the update!

You really should only have to set up that one reference.

If you get run-time errors, that is because the browser DLL can't find the other CenterPoint DLLs that CenterPointDataBrowser.DLL depends on. I don't believe that you can resolve that problem with the /r: option. If you run into run-time problems, run your hello.exe in the same folder as the CenterPoint DLLs - this would be the ReflectedDLLs folder underneath the main CenterPoint folder.
payrollproject  
#5 Posted : Friday, January 3, 2020 7:38:10 PM(UTC)
payrollproject

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I did end up getting runtime errors, as you predicted.

To simplify things, I switched to Microsoft C# (csc). I also put the program in the ReflectedDLLs folder. Still got runtime errors. Here are the commands I typed in command prompt. Compiles fine, but doesn't run. Command prompt is running in Administrator mode.

Code:

C:\Program Files (x86)\Red Wing Software\CenterPoint\ReflectedDLLs>csc --version

Microsoft (R) Visual C# Compiler version 3.4.0-beta4-19569-03 (82f2e254)
Copyright (C) Microsoft Corporation. All rights reserved.

error CS2007: Unrecognized option: '--version'
warning CS2008: No source files specified.
error CS1562: Outputs without source must have the /out option specified

C:\Program Files (x86)\Red Wing Software\CenterPoint\ReflectedDLLs>csc /r:Center
pointDataBrowser.DLL hello.cs
Microsoft (R) Visual C# Compiler version 3.4.0-beta4-19569-03 (82f2e254)
Copyright (C) Microsoft Corporation. All rights reserved.


C:\Program Files (x86)\Red Wing Software\CenterPoint\ReflectedDLLs>hello.exe

Unhandled Exception: System.BadImageFormatException: Could not load file or asse
mbly 'CenterPointDataBrowser, Version=14.10.6.0, Culture=neutral, PublicKeyToken
=null' or one of its dependencies. An attempt was made to load a program with an
 incorrect format.
   at CenterPointDataBrowser.ReportDataExample.GetReportData()
   at CenterPointDataBrowser.ReportDataExample.Main(String[] args)

C:\Program Files (x86)\Red Wing Software\CenterPoint\ReflectedDLLs>

Edited by user Friday, January 3, 2020 7:39:38 PM(UTC)  | Reason: Not specified

payrollproject  
#6 Posted : Friday, January 3, 2020 8:46:05 PM(UTC)
payrollproject

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Update: I got the code to run.

The runtime error was resolved when I realized that CenterPoint is using 32-bit. I had to set up my environment to compile to x86, instead of "Any CPU" or x64. Then, the code ran.
Nibblez4everybody  
#7 Posted : Tuesday, December 7, 2021 6:48:32 AM(UTC)
Nibblez4everybody

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Posts: 9
United States
Location: Bakersfield

Hello, I am wondering how you went to set up your environment to compile to x86, instead of "Any CPU". I am having the same error when I try to run my code from the command line.
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