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Mark J Price 2022-08-17 16:53:29 +01:00
parent 82d7a2990d
commit 003d4056a9
4 changed files with 10 additions and 14 deletions
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2
vs4win/Chapter10/WorkingWithEFCore/Program.Modifications.cs
View file

@ -8,7 +8,7 @@ partial class Program
{
using (Northwind db = new())
{
if ((db.Products is null) || (db.Products.Count() == 0))
if ((db.Products is null) || (!db.Products.Any()))
{
Fail("There are no products.");
return;

10
vs4win/Chapter10/WorkingWithEFCore/Program.Queries.cs
View file

@ -34,7 +34,7 @@ partial class Program
WriteLine();
}
if (categories is null)
if ((categories is null) || (!categories.Any()))
{
Fail("No categories found.");
return;
@ -81,7 +81,7 @@ partial class Program
IQueryable<Category>? categories = db.Categories?
.Include(c => c.Products.Where(p => p.Stock >= stock));
if (categories is null)
if ((categories is null) || (!categories.Any()))
{
Fail("No categories found.");
return;
@ -119,7 +119,7 @@ partial class Program
.Where(product => product.Cost > price)
.OrderByDescending(product => product.Cost);
if (products is null)
if ((products is null) || (!products.Any()))
{
Fail("No products found.");
return;
@ -154,7 +154,7 @@ partial class Program
IQueryable<Product>? products = db.Products?
.Where(p => EF.Functions.Like(p.ProductName, $"%{input}%"));
if (products is null)
if ((products is null) || (!products.Any()))
{
Fail("No products found.");
return;
@ -194,6 +194,4 @@ partial class Program
WriteLine($"Random product: {p.ProductId} {p.ProductName}");
}
}
}

2
vscode/Chapter10/WorkingWithEFCore/Program.Modifications.cs
View file

@ -8,7 +8,7 @@ partial class Program
{
using (Northwind db = new())
{
if ((db.Products is null) || (db.Products.Count() == 0))
if ((db.Products is null) || (!db.Products.Any()))
{
Fail("There are no products.");
return;

10
vscode/Chapter10/WorkingWithEFCore/Program.Queries.cs
View file

@ -34,7 +34,7 @@ partial class Program
WriteLine();
}
if (categories is null)
if ((categories is null) || (!categories.Any()))
{
Fail("No categories found.");
return;
@ -81,7 +81,7 @@ partial class Program
IQueryable<Category>? categories = db.Categories?
.Include(c => c.Products.Where(p => p.Stock >= stock));
if (categories is null)
if ((categories is null) || (!categories.Any()))
{
Fail("No categories found.");
return;
@ -119,7 +119,7 @@ partial class Program
.Where(product => product.Cost > price)
.OrderByDescending(product => product.Cost);
if (products is null)
if ((products is null) || (!products.Any()))
{
Fail("No products found.");
return;
@ -154,7 +154,7 @@ partial class Program
IQueryable<Product>? products = db.Products?
.Where(p => EF.Functions.Like(p.ProductName, $"%{input}%"));
if (products is null)
if ((products is null) || (!products.Any()))
{
Fail("No products found.");
return;
@ -194,6 +194,4 @@ partial class Program
WriteLine($"Random product: {p.ProductId} {p.ProductName}");
}
}
}