Jiwa

I'm adding a work order instruction custom field. It's a simple lookup to select a PartNo using jswInventory.

My problem is when doing

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CustomFieldValue.Contents = MyValue

it's throwing an object reference not set to an instance of an object. Debugging I can see that CustomFieldValue is null.
Shouldn't that be passed in as a parameter to the ButtonClicked event in the plugin?
Is there another way I can get CustomFieldValue to set the contents?

I added a custom field of type lookup to Work Order instructions and didn't get any such error.

Attached is the plugin I used. It was in Jiwa version 7.2.1 SR5 (why does nobody tell us the version?)

Take a look and see if you can work out why you get an error and my plugin doesn't.

If you still can't work it out, then provide a sample plugin which exhibits the problem (another thing nobody seems to do!).

(why does nobody tell us the version?)

Because if there's a latest version (and there's always a latest version) why mention it? I'd assume your own dev environment would be patched to the latest. If it's me who's writing a plugin for an older version and ask I question via these forums, I'll mention the version as it's more relevant.

provide a sample plugin which exhibits the problem (another thing nobody seems to do!)

Because often the plugin contain client-identifying information or other confidential information and to strip out that irrelevant code is just more trouble than it's worth and wouldn't contribute to the question in point.

But seeing as you've asked, this is my ButtonClicked code (the relevant bit!). Still not sure why my code is getting a null for CustomFieldValue but I'll replace the code below with yours.

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    public void ButtonClicked(JiwaFinancials.Jiwa.JiwaApplication.IJiwaBusinessLogic BusinessLogicHost, JiwaFinancials.Jiwa.JiwaApplication.Controls.JiwaGrid GridObject, JiwaFinancials.Jiwa.JiwaApplication.IJiwaForm FormObject, int Col, int Row, JiwaFinancials.Jiwa.JiwaApplication.IJiwaLineCustomFieldValues HostItem, JiwaFinancials.Jiwa.JiwaApplication.CustomFields.CustomField CustomField, JiwaFinancials.Jiwa.JiwaApplication.CustomFields.CustomFieldValue CustomFieldValue)
    {
      if (CustomField.PluginCustomField.Name == "Extra1")
      {
         var search = FormObject.Manager.Search;   
         search.Clear();
         search.CurrentOption = 1;
         JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.clsSearch.SearchModes searchMode = JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.clsSearch.SearchModes.jswInventory;
         search.SetDefaultSearch(ref searchMode);
         search.UsePinBoard = false;      
            
         if (search.Show(FormObject.Form) == System.Windows.Forms.DialogResult.OK)
         {
               if (search.Results.Count > 0)
               {
                  var idField = (JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.Field)search.get_Fields(2);
                  //MessageBox.Show(idField.FieldValue.ToString());
                  //System.Diagnostics.Debugger.Launch();
                  
                  CustomFieldValue.Contents = idField.FieldValue.ToString();
                   //CustomFieldValue.DisplayContents = string.Format("{0}", idField.FieldValue.ToString());
               }
               else
               {
                  throw new JiwaFinancials.Jiwa.JiwaApplication.Exceptions.ClientCancelledException();
               }
         }
         else
            {
            throw new JiwaFinancials.Jiwa.JiwaApplication.Exceptions.ClientCancelledException();
            }
      }      
    }

DannyC wrote: to strip out that irrelevant code is just more trouble than it's worth

Wow.

I don't see the line you said is giving the error:

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CustomFieldValue.Contents = MyValue

in your code anywhere:

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 public void ButtonClicked(JiwaFinancials.Jiwa.JiwaApplication.IJiwaBusinessLogic BusinessLogicHost, JiwaFinancials.Jiwa.JiwaApplication.Controls.JiwaGrid GridObject, JiwaFinancials.Jiwa.JiwaApplication.IJiwaForm FormObject, int Col, int Row, JiwaFinancials.Jiwa.JiwaApplication.IJiwaLineCustomFieldValues HostItem, JiwaFinancials.Jiwa.JiwaApplication.CustomFields.CustomField CustomField, JiwaFinancials.Jiwa.JiwaApplication.CustomFields.CustomFieldValue CustomFieldValue)
    {
      if (CustomField.PluginCustomField.Name == "Extra1")
      {
         var search = FormObject.Manager.Search;   
         search.Clear();
         search.CurrentOption = 1;
         JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.clsSearch.SearchModes searchMode = JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.clsSearch.SearchModes.jswInventory;
         search.SetDefaultSearch(ref searchMode);
         search.UsePinBoard = false;     
           
         if (search.Show(FormObject.Form) == System.Windows.Forms.DialogResult.OK)
         {
               if (search.Results.Count > 0)
               {
                  var idField = (JiwaFinancials.Jiwa.JiwaApplication.JiwaSearch.Field)search.get_Fields(2);
                  //MessageBox.Show(idField.FieldValue.ToString());
                  //System.Diagnostics.Debugger.Launch();
                 
                  CustomFieldValue.Contents = idField.FieldValue.ToString();
                   //CustomFieldValue.DisplayContents = string.Format("{0}", idField.FieldValue.ToString());
               }
               else
               {
                  throw new JiwaFinancials.Jiwa.JiwaApplication.Exceptions.ClientCancelledException();
               }
         }
         else
            {
            throw new JiwaFinancials.Jiwa.JiwaApplication.Exceptions.ClientCancelledException();
            }
      }     
    }

Well, even replacing your code with mine still comes up with the same error.

Here's a screenshot of your code, debugging in Visual Studio. You can see the value for CustomFieldValue is null.

I don't see the line you said is giving the error:

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CustomFieldValue.Contents = idField.FieldValue.ToString();

Sure, it's not

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CustomFieldValue.Contents = MyValue;

but the issue isn't the value getting passed in, it's that the CustomFieldValue is null.

Danny,

I'm afraid this is the next step for you:

If you still can't work it out, then provide a sample plugin which exhibits the problem

I've gone to the trouble of trying to reproduce your issue and creating a plugin specifically to try and reproduce your issue - the least you can do now is reciprocate and provide a plugin which demonstrates the problem.

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CustomFieldValue.Contents = idField.FieldValue.ToString();

Oh, well in that case idField is likely null.

the least you can do now is reciprocate and provide a plugin which demonstrates the problem

We seem to be having an argument but not sure why. I'm just trying to give all relevant information succinctly without distracting with irrelevant information.

Attached is my plugin. And it's 7.2.1 SR5.