PXProcessing SetError not showing in UI Grid - acumatica

Question

This my process screen:
as you can see it throws errors but it doesnt indicate the error mark on the grid.
After clicking the process button, it just unchecks the checkbox in my records
i want the grid to be like this(with the red 'x' mark):
this is my graph :
public PXCancel<PayrollFilter> Cancel;
public PXSetup<PayrollSetup> PayrollSetup;
public PXFilter<PayrollFilter> Filter;
[PXFilterable]
public PXFilteredProcessingJoin<PayrollEmployeeProcess, PayrollFilter,
InnerJoin<EPEmployee,
On<PayrollEmployee.employeeID, Equal<EPEmployee.bAccountID>>,
InnerJoin<Branch,
On<EPEmployee.parentBAccountID, Equal<Branch.bAccountID>>>>,
Where<PayrollEmployee.payPeriodID, Equal<Current<PayrollFilter.payPeriodID>>,
And<Branch.branchID, Equal<Current<AccessInfo.branchID>>>>> EmployeePayrollProcess;
#region Constructor
public PayrollProcess()
{
PayrollSetup setup = PayrollSetup.Current;
EmployeePayrollProcess.SetSelected<PayrollEmployeeProcess.selected>();
EmployeePayrollProcess.SetProcessDelegate(delegate (List<PayrollEmployeeProcess> employees)
{
if (Filter.Current == null) return;
var payPeriod = Filter.Current.PayPeriodID ?? 0;
var payrollPeriod = Filter.Current.PayrollPeriodID ?? 0;
if (payPeriod == 0 || payrollPeriod == 0) return;
PXLongOperation.StartOperation(this, delegate ()
{
bool errorOccured = false;
foreach (PayrollEmployeeProcess employee in employees)
{
PayrollRegisterEntry graph = PXGraph.CreateInstance<PayrollRegisterEntry>();
try
{
graph.ProcessPayroll(employee, payPeriod, payrollPeriod);
PXProcessing<PayrollEmployeeProcess>.SetInfo("Employee processed");
}
catch (Exception ex)
{
errorOccured = true;
//employees.IndexOf(employee),
PXProcessing<PayrollEmployeeProcess>.SetError(ex);
}
finally
{
graph.Clear();
}
}
if (errorOccured) throw new PXException("At least one employee was not processed.");
});
});
// EmployeePayrollProcess.
}`
can anyone can help me? I'm using Acumatica 6

Answer 1

Throwing an exception in Acumatica sets the error in the header. To set a Row or Field level error you need to set/raise it. There's a few ways to set/raise errors, what they have in common is that they don't use the 'throw' keyword.
For a processing screen with a filter, use the following syntax to raise the error:
PXFilteredProcessing<GridDetailDAC, GridFilterDAC>.SetError(rowIndex, new PXSetPropertyException("Error Message", PXErrorLevel.RowError));
Processing screen without filter:
PXProcessing.SetError(rowIndex, new PXException("Error Message"));