working with lists

In this video we'll use a .NET List and eventually use it as the "From" of a business Process

public class DemoWorkWithListBP : BusinessProcessBase
{
    public readonly Models.Products Products = new Models.Products();

    public DemoWorkWithListBP()
    {
        Relations.Add(Products,
          Products.ProductID.IsEqualTo(
            () => enumerator.Current.ProductID));
    }
    protected override void OnLeaveRow()
    {
        MessageBox.Show(
$@"Id: {enumerator.Current.ProductID}
Name: {Products.ProductName}
Current Quantity: {Products.UnitsInStock}
New Quantity: {enumerator.Current.UnitsInStockCount}");

        if (!enumerator.MoveNext())
            Exit();
    }
    List<StockInfo>.Enumerator enumerator;
    public void Run()
    {
        enumerator = StockInfo.CreateTestData().GetEnumerator();
        if (!enumerator.MoveNext()) return;

        Execute();
    }
} 

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