context.Blogs.FromSql("SELECT * FROM dbo.Blogs").OrderBy(b => b.Name)
.
- context.Blogs.FromSql("SELECT * FROM [dbo].[SearchBlogs]({0})", userSuppliedSearchTerm)
.
- context.Blogs.FromSql("SELECT * FROM [dbo].[SearchBlogs]({@searchTerm})", new SqlParameter("@searchTerm", userSuppliedSearchTerm))
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services
- .AddEntityFrameworkSqlite()
- .AddDbContext<MyContext>((serviceProvider, options) =>
- options.UseSqlite(connectionString)
- .UseInternalServiceProvider(serviceProvider));
- }
-
-
- optionsBuilder.ConfigureWarnings(warnings =>
- warnings.Default(WarningBehavior.Ignore)
- .Log(CoreEventId.IncludeIgnoredWarning, CoreEventId.ModelValidationWarning)
- .Throw(RelationalEventId.QueryClientEvaluationWarning))
-
-
- optionsBuilder.ConfigureWarnings(warnings =>
- warnings.Default(WarningBehavior.Ignore)
- .Log(CoreEventId.IncludeIgnoredWarning, CoreEventId.ModelValidationWarning)
- .Throw(RelationalEventId.QueryClientEvaluationWarning))
-
-
- var blogs = context.Blogs
- .Where(b => EF.Property<DateTime>(b, "LastUpdated") > DateTime.Now.AddDays(-5))
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include("Posts");
-
-
- context.Blogs.Include("Posts.Tags");
-
-
- context.Blogs
- .Include("Posts.Tags.TagInfo')
- .Include("Contributors");
-
- public IServiceCollection ConfigureDesignTimeServices(IServiceCollection serviceCollection)
.
-
-
- The name of the assembly that contains the design time services.
-
-
- The NuGet package name that contains the design time services.
-
- public IServiceCollection ConfigureDesignTimeServices(IServiceCollection serviceCollection)
.
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(options => options.UseSqlServer(connectionString));
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(options => options.UseSqlServer(connectionString));
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(ServiceLifetime.Scoped);
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services
- .AddEntityFrameworkSqlServer()
- .AddDbContext<MyContext>((serviceProvider, options) =>
- options.UseSqlServer(connectionString)
- .UseInternalServiceProvider(serviceProvider));
- }
-
- true
if the current object is equal to the other parameter; otherwise, false
.true
if the current object is equal to the other parameter; otherwise, false
.true
if the specified false
.true
if the specified false
.null
.
- The second null
.
- true
if the value of false
.null
.
- The second null
.
- true
if the value of false
.true
if false
.true
if false
.String.Empty
if the String.Empty
if the
- [BaseTypeRequired(typeof(IComponent)] // Specify requirement
- public class ComponentAttribute : Attribute
- {}
-
- [Component] // ComponentAttribute requires implementing IComponent interface
- public class MyComponent : IComponent
- {}
-
- Function definition table syntax:
- ("o", o);
- }
- ]]>
- In some other cases, the input value is returned unmodified. This makes it easier to use the argument checks in calls to base class constructors
- or property setters:
-
-
- var query = from s in Students
- join a in Addresses on s.AdressID equals a.ID into addresses
- from a in addresses
- select new { s, a };
-
-
- var query = from s in Students
- join a in Addresses on s.AdressID equals a.ID
- select new { s, a };
-
-
- var result = (from s in Students
- select s).Aggregate(0, (totalAge, s) => totalAge + s.Age);
-
-
- var result = (from s in Students
- select s.Name).Aggregate((allNames, name) => allNames + " " + name);
-
-
- var result = (from s in Students
- select s).All();
-
-
- var result = (from s in Students
- select s).Any();
-
-
- var query = (from s in Students
- select s.ID).Average();
-
-
- var query = (from s in Students
- select s.ID).Cast<int>();
-
-
- var query = (from s in Students
- select s).Concat(students2);
-
-
- var query = (from s in Students
- select s).Contains (student);
-
-
- var query = (from s in Students
- select s).Count();
-
-
- var query = (from s in Students
- select s).DefaultIfEmpty ("student");
-
-
- var query = (from s in Students
- select s).Distinct();
-
-
- var query = (from s in Students
- select s).Except(students2);
-
-
- var query = (from s in Students
- select s).First();
-
-
- var query = from s in Students
- where s.First == "Hugo"
- group s by s.Country;
-
-
- var query = (from s in Students
- select s).Intersect(students2);
-
-
- var query = (from s in Students
- select s).Last();
-
-
- var query = (from s in Students
- select s).LongCount();
-
-
- var query = (from s in Students
- select s.ID).Max();
-
-
- var query = (from s in Students
- select s.ID).Min();
-
-
- var query = (from s in Students
- select s.ID).OfType<int>();
-
-
- var query = (from s in Students
- select s).Reverse();
-
-
- var query = (from s in Students
- select s).Single();
-
-
- var query = (from s in Students
- select s).Skip (3);
-
-
- var query = (from s in Students
- select s.ID).Sum();
-
-
- var query = (from s in Students
- select s).Take(3);
-
-
- var query = (from s in Students
- select s).Union(students2);
-
-
- var query = from s in Students
- where s.First == "Hugo"
- select s;
-
-
- MainSource (...)
- .Select (x => x)
- .Distinct ()
- .Select (x => x)
-
-
- Naively, the last Select node would resolve (via Distinct and Select) to the
- MainSource (MainSource (...).Select (x => x).Distinct ())
- .Select (x => x)
-
-
- Now, the last Select node resolves to the new
- x.GroupBy (k => key, e => element, (k, g) => result)
-
- is therefore equivalent to:
-
- c.GroupBy (k => key, e => element).Select (grouping => resultSub)
-
- where resultSub is the same as result with k and g substituted with grouping.Key and grouping, respectively.
-
- from order in ...
- select order.OrderItems.Count()
-
- In this query, the
- from c in Customers
- from o in (from oi in OrderInfos where oi.Customer == c orderby oi.OrderDate select oi.Order)
- orderby o.Product.Name
- select new { c, o }
-
- This will be transformed into:
-
- from c in Customers
- from oi in OrderInfos
- where oi.Customer == c
- orderby oi.OrderDate
- orderby oi.Order.Product.Name
- select new { c, oi.Order }
-
- As another example, take the following query:
-
- from c in (from o in Orders select o.Customer)
- where c.Name.StartsWith ("Miller")
- select c
-
- (This query is never produced by the
- from o in Orders
- where o.Customer.Name.StartsWith ("Miller")
- select o
-
- context.Blogs.FromSql("SELECT * FROM dbo.Blogs").OrderBy(b => b.Name)
.
- context.Blogs.FromSql("SELECT * FROM [dbo].[SearchBlogs]({0})", userSuppliedSearchTerm)
.
- context.Blogs.FromSql("SELECT * FROM [dbo].[SearchBlogs]({@searchTerm})", new SqlParameter("@searchTerm", userSuppliedSearchTerm))
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services
- .AddEntityFrameworkSqlite()
- .AddDbContext<MyContext>((serviceProvider, options) =>
- options.UseSqlite(connectionString)
- .UseInternalServiceProvider(serviceProvider));
- }
-
-
- optionsBuilder.ConfigureWarnings(warnings =>
- warnings.Default(WarningBehavior.Ignore)
- .Log(CoreEventId.IncludeIgnoredWarning, CoreEventId.ModelValidationWarning)
- .Throw(RelationalEventId.QueryClientEvaluationWarning))
-
-
- optionsBuilder.ConfigureWarnings(warnings =>
- warnings.Default(WarningBehavior.Ignore)
- .Log(CoreEventId.IncludeIgnoredWarning, CoreEventId.ModelValidationWarning)
- .Throw(RelationalEventId.QueryClientEvaluationWarning))
-
-
- var blogs = context.Blogs
- .Where(b => EF.Property<DateTime>(b, "LastUpdated") > DateTime.Now.AddDays(-5))
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include(blog => blog.Posts);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags);
-
-
- context.Blogs
- .Include(blog => blog.Posts).ThenInclude(post => post.Tags).ThenInclude(tag => tag.TagInfo)
- .Include(blog => blog.Contributors);
-
-
- context.Blogs.Include("Posts");
-
-
- context.Blogs.Include("Posts.Tags");
-
-
- context.Blogs
- .Include("Posts.Tags.TagInfo')
- .Include("Contributors");
-
- public IServiceCollection ConfigureDesignTimeServices(IServiceCollection serviceCollection)
.
-
-
- The name of the assembly that contains the design time services.
-
-
- The NuGet package name that contains the design time services.
-
- public IServiceCollection ConfigureDesignTimeServices(IServiceCollection serviceCollection)
.
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(options => options.UseSqlServer(connectionString));
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(options => options.UseSqlServer(connectionString));
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services.AddDbContext<MyContext>(ServiceLifetime.Scoped);
- }
-
-
- public void ConfigureServices(IServiceCollection services)
- {
- var connectionString = "connection string to database";
-
- services
- .AddEntityFrameworkSqlServer()
- .AddDbContext<MyContext>((serviceProvider, options) =>
- options.UseSqlServer(connectionString)
- .UseInternalServiceProvider(serviceProvider));
- }
-
- true
if the current object is equal to the other parameter; otherwise, false
.true
if the current object is equal to the other parameter; otherwise, false
.true
if the specified false
.true
if the specified false
.null
.
- The second null
.
- true
if the value of false
.null
.
- The second null
.
- true
if the value of false
.true
if false
.true
if false
.String.Empty
if the String.Empty
if the
- [BaseTypeRequired(typeof(IComponent)] // Specify requirement
- public class ComponentAttribute : Attribute
- {}
-
- [Component] // ComponentAttribute requires implementing IComponent interface
- public class MyComponent : IComponent
- {}
-
- Function definition table syntax:
- ("o", o);
- }
- ]]>
- In some other cases, the input value is returned unmodified. This makes it easier to use the argument checks in calls to base class constructors
- or property setters:
-
-
- var query = from s in Students
- join a in Addresses on s.AdressID equals a.ID into addresses
- from a in addresses
- select new { s, a };
-
-
- var query = from s in Students
- join a in Addresses on s.AdressID equals a.ID
- select new { s, a };
-
-
- var result = (from s in Students
- select s).Aggregate(0, (totalAge, s) => totalAge + s.Age);
-
-
- var result = (from s in Students
- select s.Name).Aggregate((allNames, name) => allNames + " " + name);
-
-
- var result = (from s in Students
- select s).All();
-
-
- var result = (from s in Students
- select s).Any();
-
-
- var query = (from s in Students
- select s.ID).Average();
-
-
- var query = (from s in Students
- select s.ID).Cast<int>();
-
-
- var query = (from s in Students
- select s).Concat(students2);
-
-
- var query = (from s in Students
- select s).Contains (student);
-
-
- var query = (from s in Students
- select s).Count();
-
-
- var query = (from s in Students
- select s).DefaultIfEmpty ("student");
-
-
- var query = (from s in Students
- select s).Distinct();
-
-
- var query = (from s in Students
- select s).Except(students2);
-
-
- var query = (from s in Students
- select s).First();
-
-
- var query = from s in Students
- where s.First == "Hugo"
- group s by s.Country;
-
-
- var query = (from s in Students
- select s).Intersect(students2);
-
-
- var query = (from s in Students
- select s).Last();
-
-
- var query = (from s in Students
- select s).LongCount();
-
-
- var query = (from s in Students
- select s.ID).Max();
-
-
- var query = (from s in Students
- select s.ID).Min();
-
-
- var query = (from s in Students
- select s.ID).OfType<int>();
-
-
- var query = (from s in Students
- select s).Reverse();
-
-
- var query = (from s in Students
- select s).Single();
-
-
- var query = (from s in Students
- select s).Skip (3);
-
-
- var query = (from s in Students
- select s.ID).Sum();
-
-
- var query = (from s in Students
- select s).Take(3);
-
-
- var query = (from s in Students
- select s).Union(students2);
-
-
- var query = from s in Students
- where s.First == "Hugo"
- select s;
-
-
- MainSource (...)
- .Select (x => x)
- .Distinct ()
- .Select (x => x)
-
-
- Naively, the last Select node would resolve (via Distinct and Select) to the
- MainSource (MainSource (...).Select (x => x).Distinct ())
- .Select (x => x)
-
-
- Now, the last Select node resolves to the new
- x.GroupBy (k => key, e => element, (k, g) => result)
-
- is therefore equivalent to:
-
- c.GroupBy (k => key, e => element).Select (grouping => resultSub)
-
- where resultSub is the same as result with k and g substituted with grouping.Key and grouping, respectively.
-
- from order in ...
- select order.OrderItems.Count()
-
- In this query, the
- from c in Customers
- from o in (from oi in OrderInfos where oi.Customer == c orderby oi.OrderDate select oi.Order)
- orderby o.Product.Name
- select new { c, o }
-
- This will be transformed into:
-
- from c in Customers
- from oi in OrderInfos
- where oi.Customer == c
- orderby oi.OrderDate
- orderby oi.Order.Product.Name
- select new { c, oi.Order }
-
- As another example, take the following query:
-
- from c in (from o in Orders select o.Customer)
- where c.Name.StartsWith ("Miller")
- select c
-
- (This query is never produced by the
- from o in Orders
- where o.Customer.Name.StartsWith ("Miller")
- select o
-
-