I’m Implementing a custom Material request note (MRN) screen. Now I need to add a custom button to Production orders screen which create a MRN based on that production order. currently it gives the Object reference not set to an instance of an object. error. I have added few if conditions to check the null values, but it did not hit any if condition. Following is my Action code
public PXAction<AMProdItem> CreateMRN;
[PXButton(DisplayOnMainToolbar = true, CommitChanges = true)]
[PXUIField(DisplayName = "Create MRN", Enabled = true)]
protected virtual IEnumerable createMRN(PXAdapter adapter)
{
// Populate a local inventoryItemList variable.
List<AMProdMatl> inventoryItemList = new List<AMProdMatl>();
foreach (AMProdMatl inventoryItem in adapter.Get<AMProdMatl>())
{
inventoryItemList.Add(inventoryItem);
}
if(inventoryItemList.Count == 0)
{
string msg = "MRN - Item list is empty";
throw new PXException(msg);
}
// Trigger the Save action to save changes in the database.
//Base.Actions.PressSave();
var productionOrder = Base.ProdItemRecords.Current;
if (productionOrder == null)
{
string msg = "MRN - production order is null";
throw new PXException(msg);
}
/*Execute ValidatePrices method asynchronously
using PXLongOperation.StartOperation*/
PXLongOperation.StartOperation(this,
() => CreateMRNDoc(productionOrder.ProdOrdID, inventoryItemList)
);
// Return the local inventoryItemList variable.
return inventoryItemList;
}
private static void CreateMRNDoc(string orderId, List<AMProdMatl> itemList )
{
using (var ts = new PXTransactionScope())
{
var mRNEntry = PXGraph.CreateInstance<MRMaterialRequestNoteEntry>();
// Initialize the summary of the invoice.
var doc = new MRMaterialRequest()
{
DocType = MRNDocType.ProductionOrder,
DocDate = DateTime.Now,
DepartmentID = "1",
Status = MRNStatus.Open,
Description = orderId
};
doc = mRNEntry.MaterialRequestView.Insert(doc);
doc = mRNEntry.MaterialRequestView.Update(doc);
mRNEntry.Actions.PressSave();
mRNEntry.MaterialRequestView.Current = doc;
if( doc == null )
{
string msg = "MRN - Material request note is null";
throw new PXException(msg);
}
foreach (AMProdMatl item in itemList)
{
if (item.InventoryID == null)
{
string msg = "inventory id is null";
throw new PXException(msg);
};
var itemDoc = new MRInventoryItems()
{
//Mrrefnbr = "0000006",
InventoryID = item.InventoryID,
OrderQty = item.TotalQtyRequired,
SourceOrderNbr = orderId
};
if (itemDoc == null)
{
string msg = "MRN - Material request note item document is null";
throw new PXException(msg);
}
itemDoc = mRNEntry.MaterialDetailsView.Insert(itemDoc);
mRNEntry.MaterialDetailsView.Update(itemDoc);
}
mRNEntry.Actions.PressSave();
ts.Complete();
}
}when commented the foreach loop which create the MRInventoryItems record list, rest of the code work fine. and create a new MRN record without the inventory items.
