Acumatica服务管理模块：SD300100工单Labor页签字段自动填充报错

I’ve run into quite a few similar case-sensitivity headaches with Acumatica customizations, so let’s break down how to troubleshoot and fix this issue.

First, let’s start with the most common culprits when case sensitivity breaks your auto-population logic:

1. Mismatched DAC Field Naming (PascalCase vs. Lowercase) #

Acumatica’s DAC fields follow PascalCase naming conventions (e.g., ModelNumber, not modelnumber). If your code references the field in lowercase (or incorrect casing), it will fail to map properly to the database column, even if the database stores values in uppercase.

Example Fix: #

If you had code like this (incorrect casing):

var serviceRecord = PXSelect<Service, 
    Where<Service.modelnumber, Equal<Current<Labor.modelnumber>>>>.Select(Base);

Update it to match the DAC’s PascalCase field names:

var serviceRecord = PXSelect<Service, 
    Where<Service.ModelNumber, Equal<Current<Labor.ModelNumber>>>>.Select(Base);

2. Database Collation Case Sensitivity #

If your Acumatica database uses a case-sensitive collation (e.g., SQL_Latin1_General_CP1_CS_AS), direct equality checks will fail if the case of the selected Model Number doesn’t exactly match the stored value.

Fix Options: #

• Option 1: Use IgnoreCase in DAC Field Attributes
  Update the ModelNumber field in both the Labor and Service DACs (or their extensions) to include IgnoreCase = true:

  [PXDBString(50, IsUnicode = true, IgnoreCase = true)]
  [PXUIField(DisplayName = "Model Number")]
  public virtual string ModelNumber { get; set; }
  

  This tells Acumatica to ignore case when querying or comparing this field.

• Option 2: Normalize Case in Your Query
  Explicitly convert both values to the same case (upper or lower) in your logic to bypass collation restrictions:

  Labor currentLabor = Base.Caches[typeof(Labor)].GetCurrent<Labor>();
  if (currentLabor?.ModelNumber != null)
  {
      string normalizedModel = currentLabor.ModelNumber.ToUpper();
      Service service = PXSelect<Service, 
          Where<Service.ModelNumber, Equal<Required<Service.ModelNumber>>>>
          .Select(Base, normalizedModel);
      
      if (service != null)
      {
          currentLabor.ServiceID = service.ServiceID;
          Base.Caches[typeof(Labor)].Update(currentLabor);
      }
  }
  

3. Debug to Confirm Case Mismatch #

To verify that case is indeed the issue:

• Add debug logs to print the selected Model Number and the values stored in the Service table:

  PXDebug.WriteLine($"Selected Model Number: {currentLabor.ModelNumber}");
  var allServices = PXSelect<Service>.Select(Base);
  foreach (Service s in allServices)
  {
      PXDebug.WriteLine($"Stored Model: {s.ModelNumber}, Service ID: {s.ServiceID}");
  }
  

• Run a direct SQL query against your Acumatica database to test case sensitivity:

  -- Test exact case match
  SELECT ServiceID FROM Service WHERE ModelNumber = 'YOUR_SELECTED_MODEL';
  -- Test case-insensitive match
  SELECT ServiceID FROM Service WHERE UPPER(ModelNumber) = UPPER('YOUR_SELECTED_MODEL');
  

If the second query returns a result but the first doesn’t, your collation is case-sensitive, and you’ll need one of the fixes above.

Final Checks #

• Double-check that your code is attached to the correct event (usually FieldUpdated on the Labor.ModelNumber field) to trigger the auto-population when the model is selected.
• Ensure you’re saving the updated Labor record after setting the ServiceID (using Base.Caches[typeof(Labor)].Update(currentLabor)).

内容的提问来源于stack exchange，提问作者Dane