How can I use acumatica custom attribute in Event Handler?

Question

I need to use my custom attribute to trigger an event, in this case I need usrTextileItem==true to trigger usrTextileItemType Field to visible=true.

here's my Declaration in Extension for Textile Item

[PXBool]
[PXUIField(DisplayName="Textile Item")]

here's my Declaration in Extension for Textile Item Type

[PXDBString(1)]
[PXUIField(DisplayName="Textile Item Type", Visible=false)]
[PXDefault("C")]
[PXStringList(
new string[]{
"C","Y","B","F"   
},
new string[]{
"Cotton", "Yarn","Beam","Finish Goods"
})]

and this is my current InventroyMaint__Extension

protected void InventoryItem_UsrTextileItem_FieldUpdated(PXCache cache, PXFieldUpdatedEventArgs e)
{

  InventoryItem row = (InventoryItem)e.Row;
  InventoryItemExt ext = cache.GetExtension<InventoryItemExt>();

 if(ext.usrTextileItem==true){ 
    PXUIFieldAttribute.SetVisible<InventoryItemExt.usrTextileItemType>(cache, row, true);
 }

}

and I can't get the extensions value, and I have 3 error that says: First error:

'PX.Data.PXCache' does not contain a definition for 'GetExtension' and the best extension method overload 'PX.Data.PXCacheEx.GetExtension(PX.Data.IBqlTable)' has some invalid arguments in file: Code#InventoryItemMaint(37)

Instance argument: cannot convert from 'PX.Data.PXCache' to 'PX.Data.IBqlTable' in file: Code#InventoryItemMaint(37)

'usrTextileItem': cannot reference a type through an expression; try 'PX.Objects.IN.InventoryItemExt.usrTextileItem' instead in file: Code#InventoryItemMaint(39)

Gabriel Gabriel · Accepted Answer · 2016-06-20T13:24:35

The code doesn't compile, but even if it did, it wouldn't work. SetVisible, SetEnabled or any other call affecting UI shouldn't be done from FieldUpdated event. You should do it from RowSelected instead. This is covered during in the developer training materials; I suggest you review how events work and in which order they're processed when you change value and do a callback.

P.S. cache.GetExtension<T>(); expects a parameter - replace it with cache.GetExtension<InventoryItemExt>(row);

How can I use acumatica custom attribute in Event Handler?

1 Answers