Acumatica Custom Selector SQL Error - Incorrect Syntax near the keyword - acumatica

Question

I am trying to create a custom Parts selector to search all records if there is no vendor selected, if a vendor is selected I want to filter the selector's results to only include Parts with the vendor selected.
Using PXCustomSelectorAttribute:
SQL Error: Incorrect syntax near the keyword 'AND'
Incorrect syntax near the keyword 'ORDER'
[PXNonInstantiatedExtension]
public class SO_SOLine_ExistingColumn : PXCacheExtension<PX.Objects.SO.SOLine>
{
#region InventoryID
[PXMergeAttributes(Method = MergeMethod.Replace)] //was append
[PXUIField(DisplayName = "Part #")]
[PartSelector(typeof(SOLineExt.usrCusVendor))]
public int? InventoryID { get; set; }
#endregion
}
public class PartSelector : PXCustomSelectorAttribute
{
[Serializable]
[PXProjection(typeof(
Select2<atcVendorItem,
LeftJoin<InventoryItem,
On<InventoryItem.inventoryCD, Equal<atcVendorItem.inventoryCD>, And<InventoryItem.inventoryID, Equal<atcVendorItem.inventoryID>>>>>), Persistent = false)]
public class atcPartView : IBqlTable
{
// DAC W/Inventory Item Table mapped and joined with Vendor Items
}
//Selected table
private Type _MfgField;
////way to have multiple description fields
public PartSelector(Type MfgField) : base(typeof(atcPartView.inventoryID))
{
_MfgField = MfgField;
}
protected virtual IEnumerable GetRecords()
{
var cache = this._Graph.Caches[BqlCommand.GetItemType(_MfgField)];
var cbs = (BAccount)cache.Current;
// make mfgfield
if (cbs != null)
{
foreach (atcPartView p in PXSelect<atcPartView, Where<atcPartView.vendorID, Equal<Required<SOLineExt.usrMfg>>>>.Select(_Graph, cbs.BAccountID))
{
yield return p;
}
}
else
{
foreach (atcPartView p in PXSelect<atcPartView, Where<atcPartView.vendorID, IsNotNull>>.Select(_Graph))
{
yield return p;
}
}
}
}

Answer 1

I was able to find another exception while debugging in visual studio,
my issue was because I was trying to cast the field as BAccount when referencing the SOLine Extension. Changing the cast fixed my issue