Adding search function to the AlternateID on the Sales Order Line Grid - acumatica

Question

I want to add a pxselector to the AlternateID field on the Sales Order Line grid to search multiple alternate id's for a single item for the customer identified on the SOHeader. I added the following code:
namespace PX.Objects.SO {
public class SOOrderEntry_Extension:PXGraphExtension<SOOrderEntry> {
#region Event Handlers
[PXMergeAttributes(Method = MergeMethod.Merge)]
[PXSelector(typeof(Search<INItemXRef.alternateID,
Where<INItemXRef.inventoryID, Equal<Current<SOLine.inventoryID>>,
And<INItemXRef.bAccountID, Equal<Current<SOOrder.customerID>>>>>),
typeof(INItemXRef.alternateID),
typeof(INItemXRef.inventoryID),
typeof(INItemXRef.bAccountID)
)]
public void SOLine_AlternateID_CacheAttributeCacheAttached() {}
#endregion
}
}
I also deleted the text control from the Transactions grid and re-added it as a selector.
My selector shows up on the AlternateID field on as expected but when the selector is clicked the error "Error #107: View doesn't exist" is displayed.
This was an example Ruslan from Acumatica went over with us at Framework training last week in Ohio, but I obviously missed a step. Any help would be appreciated.

Answer 1

George, you put a wrong name for your event handler and that causes the error. Try replacing your handler with the code snippet below:
[PXMergeAttributes(Method = MergeMethod.Merge)]
[PXSelector(typeof(Search<INItemXRef.alternateID>),
typeof(INItemXRef.alternateID),
typeof(INItemXRef.inventoryID),
typeof(INItemXRef.bAccountID))]
public void SOLine_AlternateID_CacheAttached(PXCache sender)
{
}