generic type

The name of a generic type parameter on an externally visible type or method does not start with an uppercase 'T'.

The containing type has no generic type parameters, and none of the type arguments have generic type parameters.

In the type system, a generic type parameter is represented by an instance of Type, just as ordinary types are.

Precedes one or more digits representing the number of type parameters, located at the end of the name of a generic type.

And a closed constructed type otherwise . A generic type can be instantiated only if it is closed .

A covariant delegate can be assigned another delegate of the same type, but with a more derived generic type parameter.

Notice that the constraint specifies that the generic type can only be instantiated with a value type.

Similarly, the constraints in a constraint list for a generic type parameter must be enclosed in braces.

You can still make late-bound calls to such a generic type as long as the COM object implements the IDispatch interface.

The following code displays the name and parameter position of a Type object that represents a generic type parameter.

A type argument supplied to a generic type does not satisfy the reference type constraint on its corresponding type parameter.

A generic type can be open without being a generic type definition, in which case it has a mixture of type arguments and type parameters.

But it's not always convenient to load classes into the JVM to access generic type information.

Tag in the comment for a generic type or generic member declaration to describe one of the type parameters.

The list of generic type parameters of a generic type or method, specified as part of the definition of the generic type or generic method.

Consequently, each permutation of a generic type with a specific argument type is considered a unique type.

A corresponding type argument specifies at compilation time the data type of one of the elements in the generic type.

The IL we've generated for the generic type already has the method its going to call picked out.

A type argument supplied to a generic type does not satisfy the value type constraint on its corresponding type parameter.

Constraints are part of the generic type metadata so that the client-side compiler can take advantage of them as well.

Type objects that represent the type arguments supplied for a constructed type, or the type parameters of a generic type definition.

Users of the generic type cannot substitute type arguments that do not satisfy the constraints.

The general term " generic type" includes both constructed types and generic type definitions .

Serializing an instance of a generic type is no different from serializing a non-generic type.

Is not the same as the number of type parameters in the current generic type definition.

Instantiation of a generic type or calls to existing generic methods can be added , deleted, or changed .

Method contains the types that have been assigned to the generic type parameters of the generic method definition.

How the MSIL for a generic type is used differs based on whether or not the supplied type parameter is a value or reference type.

Generic type parameter names should start with an uppercase 'T' and optionally may be followed by another uppercase letter.

Properties or indexers can only use generic type parameters defined at the scope of the class.

The constructor constraint ensures that the generic type has the ability to create objects of that type.

The object returned by this method functions as a placeholder for a constructed generic type in your emitted code.

If the current Type represents a type parameter in the definition of a generic type or generic method , this property always returns false.

The Infer Generic Type Arguments refactoring automatically tries to guess the appropriate generic types for classes used in their raw form.

Returns the type of an array whose element type is the generic type parameter, with the specified number of dimensions.

An array of types to be substituted for the type parameters of the current generic type definition.

Gets the position of a type parameter in the type parameter list of the generic type that declared the parameter.

A generic type is declared with conflicting constraints due to a combination of indirect constraints.

The common language runtime creates a closed generic type when you create an instance of your class and specify a generic type argument.

If you define your own generic type of method the resulting assembly currently would not work.

You cannot create instances of it unless you specify real types for its generic type parameters.

This error indicates that you tried to modify an initializer in a generic type.

Typically, MMORPGs, even the great ones, only offer the most generic type quests, in completely generic environments.

Tag should be used in the comment for a generic type or method declaration to describe a type parameter.

The elements of the array represent the type arguments of a generic type or the type parameters of a generic type definition.

That represents a generic type is always a generic type definition.

If the current Type represents a type parameter of a generic type, this property always returns false.

In a generic type definition, a placeholder for a data type you supply when you declare the type.

The current type does not represent the definition of a generic type.

But it is appealing, almost seductive, to incorporate mixins as part of a generic type system.

When a generic type parameter is used as a constraint, it is called a naked type constraint.

Move the Declare statement outside the scope of any generic type, or remove it altogether.

A way of limiting the types that can be specified for a generic type parameter.

That code will be used in any further request for a reference type instead of a generic type parameter.

For example, constraints are checked at a method call to a generic method, or when building a constructed type out of a generic type.

Returns an array of Type objects that represent the type arguments of a generic type or the type parameters of a generic type definition.

Returns the method of the specified constructed generic type that corresponds to the specified method of the generic type definition.

A generic type serves as a basis for declaring several different programming elements, each of which operates on a specific data type.

The elements of the returned array are in the order in which they appear in the list of type parameters for the generic type definition.

Describes the constraints on a generic type parameter of a generic type or method.

These instances are not instances of the generic type definition, but of the constructed type formed by specifying type arguments.

Returns the type or member identified by the specified metadata token, in the context defined by the specified generic type parameters.

A closed generic type is a type declaration where a particular type is specified for a type parameter.

Is a generic type parameter, then the runtime behavior is determined by the type that is specified for that generic type parameter.

A generic type can be instantiated only if it is closed.

Returns the type of a one-dimensional array whose element type is the generic type parameter.

Equals method, define equality appropriately for the type specified by the generic type argument.

Returns the field identified by the specified metadata token, in the context defined by the specified generic type parameters.

Object for the constructor or method represented by the specified handle, for the specified generic type.

Does not represent a generic type parameter, the value of this property is undefined.

A class, structure, interface, procedure, or delegate declared from a generic type by supplying type arguments for its type parameters.

Scala uses square brackets to denote generic type, instead of the angle brackets used in Java programming.

The generic type parameter T is the primary type that you wish to cast the class to.

Type represents a generic type definition, from which other generic types can be constructed.

Returns a Type object that represents a generic type definition from which the current generic type can be constructed.

Type objects representing the type arguments of a generic type or the type parameters of a generic type definition.

Values that describes the covariance and special constraints of the current generic type parameter .

Unchecked generic type operation The compiler will issue an error or warning whenever it encounters an unchecked generic type operation.

The documentation of a generic type includes a tag for the type parameter that has the wrong name.

Represents a generic type definition from which other generic types can be constructed.

Creates an instance of the type designated by the specified generic type parameter, using the parameter less constructor .

Object representing the dynamic assembly that contains the generic type definition the current type parameter belongs to.

The declaring type of method is not the generic type definition of type.

The position of the type parameter in the type parameter list of the generic type or method that declared the parameter.

A type parameter represents a requirement for a type that is to be supplied when the generic type is constructed.

Code block 8 uses a generic delegate called GenericEventHandler, which accepts a generic sender type and a generic type parameter.

Type represents a type parameter of a generic type or method definition.

Returns true if the type represents the definition of a generic type.

Shows how to define a generic type in a dynamic module, how to define its generic type parameters, and how to use them in method signatures.

property returns a fully qualified type name including nested types , the assembly name , and generic type arguments.

Type represents a type parameter in the definition of a generic type or method.

Because it is only a template, you cannot create instances of a class, structure, or interface that is a generic type definition.

A generic type declaration contains one or more unspecified types known as type parameters.

Listing 7 declares that p is a function that takes a parameter of the generic type specified by A and returns a boolean.

Returns the underlying generic type definition for the current constructed type.

The name of the generic type parameter.

You can constrain multiple interfaces on the same generic type parameter, separated by a comma.

Flags that describe the special constraints of the current generic type parameter.

Object that represents a generic type definition from which the current type can be obtained.

This includes the type arguments as well as the generic type itself.

A type parameter of a generic type declaration, or a type argument of a constructed generic type.

As its name indicates, HasGenericArguments is set to true if the type represented by the Type object uses generic type parameters.

Gets a value indicating whether the generic method contains unassigned generic type parameters.

Generic type parameters known to be reference types.

The signature format extends the idea of field and method descriptors to include generic type information.

Property to determine the generic type the generic type parameter belongs to.

This property is not supported for incomplete generic type parameters.

Defines and creates generic type parameters for dynamically defined generic types and methods.

This method receives several parameters, including a SQL statement and a result handler, and returns an object of generic type T.

For a generic type , encloses the generic type argument list .

Type. This one provides information about a generic type with specific type parameters.

Value is not of the type specified for the generic type parameter T.

Retrieve the type parameter from the completed generic type definition and then use reflection on the retrieved type.

A generic type definition is not assignable from a closed constructed type.

When using administrative type registration, you need to specify the exact type arguments to use instead of the generic type parameters.

The generic type of the Future object is the result of the actual operation.

Type Arguments property (in the Properties window) to match the desired type for the generic type.

Use this method when your emitted code requires a type constructed from the current generic type definition.

With generic types, the type-specific versions are all generated from the original generic type.

Returns an array of Type objects that represent the constraints on the current generic type parameter.

Returns the type of an array whose element type is the generic type parameter.

In C#, a generic type parameter cannot itself be a generic, although constructed types can be used as generics.

However, the specified type arguments can themselves be generic type parameters.

Returns a generic method constructed from the current generic method definition using the specified generic type arguments.

Type represents a constructed generic type, the base type reflects the generic arguments.

Represents a type parameter of a generic type or method.

Normally, when you invoke a generic type, you supply a type argument for each type parameter the generic type defines.

The example also defines a DisplayGenericParameter method to examine a generic type parameter and display its constraints.

Parameter references a generic type, it must follow the syntax conventions for generic types.

The type parameters of the generic type Map were inferred as [Nothing, Nothing] when the map was created.

Types constructed from the same generic type but with different type arguments are distinct types.

Type represents a generic type parameter, in which case the value is unspecified.

delegate class and substitute your custom type for the generic type parameter.

The number 1 being traced is the number of generic type parameters of the generic type used.

Object that represents the dynamic module that contains the generic type parameter.

Type objects that represent the constraints on the current generic type parameter.

For an example of an open generic type that is not a generic type, see "Type Parameter or Type Argument" later in this topic.

The declaring type of method is not a generic type definition.

Remove the argument list following the type argument in the statement invoking the generic type.

A specific data type that replaces a type parameter when you declare a constructed type from a generic type.

Objects that represent the constraints on the current generic type parameter.

Delegates defined outside the scope of a class can use generic type parameters.

Gets a value indicating whether the current type is a generic type.

Enumerations cannot have generic type parameters.

A base class can define virtual methods whose signatures use generic type parameters.

Shows how to define a generic method in a dynamic module, how to define its generic type parameters, and how to execute the method.

You can write a visualizer for a target that is a generic type only if the generic type is an open type.

Gets the base type constraint of the current generic type parameter.

If the current Type represents a generic type parameter, the GetConstructors method returns an empty array.

The following guidelines cover selecting the correct names for generic type parameters.

Type object that represents a pointer to the current generic type parameter.

Not supported for incomplete generic type parameters.

Invalid for incomplete generic type parameters.

That's unfortunate, because it means that you have to wrap primitive types whenever you want to use them as arguments to a generic type.

DOUBLE is the generic type used in various models.

Gets the type arguments for the current generic type reference.

The code in a generic type has to be defined only once.

This is similar to declaring a generic type, but the type parameter's scope is limited to the method or constructor in which it's declared.

It is important to note that although constraints are optional, they are often essential when developing a generic type.

The SetParameters method is used to give the method one parameter, whose type will be specified by the first generic type parameter.

A Module statement uses the Of keyword to introduce generic type parameters.

Generic type parameters can't be instantiated with primitive types.

Recall from Chapter 1 that Scala uses square brackets ([. . . ]) for generic type parameters.

Note that operators cannot define new generic type parameters.

A generic type parameter might come from the type you are examining, from an enclosing type, or from a generic method.

A method on the generic type definition of type, which specifies which method of type to return.

Get a Type object that represents the generic type.

Use constraints to require the generic type to implement the IDisposableinterface.

Your component or control cannot be a generic type, which is also called a template type or a parameterized type.

The generic type argument declares the type of result this CriteriaQuery will return upon execution.

The declaring type is not necessarily a generic type.

Gets the dynamic module that contains the generic type parameter.

Gets the method that declared the current generic type parameter.

Therefore, if a generic type is non-public, Visual Studio cannot generate a unit test for it.

It refers to a non-generic type declaration.

The generic type parameter is the type of the array's elements.

The constructed generic type whose method is returned.

The SetReturnType method is used to give the method a return type, specified by the second generic type parameter.

When using the subclass generic type parameters, you must repeat any constraints stipulated at the base class level at the subclass level.

The MakeGenericType method requires a generic type definition.

Class that is generic is always a generic type definition.

Java 5 also extended the reflection APIs to provide access to generic type information at run time.

They are invocations of distinct generic type declarations.

Type object represents a generic type parameter.

Add a tag for each type parameter of the generic type or method.

Type does not represent a generic type.

Class using the specified target object, method name, and generic type arguments.

Represents the uninstantiated generic type.

Add explicit generic type parameters.

Verifies that two specified generic type data are not equal.

You can use is and as on both generic type parameters and on generic classes with specific type arguments.

It is a parameterized type (like a generic type in Java), parameterized here with String.

A generic type is like a template.

Represents a generic type parameter.

Note the use of the two constraints on the generic type parameter F.

A single type can define multiple generic-type parameters.

Get an instance of Type that represents the generic type.

Get an array that contains the generic type arguments, using the GetGenericArguments method.

AspectJ 5 also lets you make inter-type declarations on a generic type.

First, the generic type is instantiated as follows.

The angle brackets assign a specific type (that is, the parameterized type) to the generic type represented by the "T" argument types.

Is a generic type that is unknown at compile time, it is not possible to make this transformation at compile time.

Type is an open generic type (that is, the ContainsGenericParameters property returns true).

In C#, you can view information about generic type parameters.

If a nested type is generic, this method returns its generic type definition.

The generic type the method belongs to.

Explains how to inherit from a generic type with the Class Designer.

This is true even if the enclosing generic type is a closed constructed type.

When you define a generic type, you parameterize it with one or more data types.

Usually this is done because the implementation of the generic type requires some methods of the base class or interface.

The principle difference is that a generic type has a list of Type objects representing its generic type parameters.

See How to: Define a Generic Type with Reflection Emit.

How to: Define a Generic Type with Reflection Emit.

Note that a method is not generic just because it is declared in a generic type.

You must have a generic type or method definition.

A nested type argument is a type argument that is also a generic type.

When instantiating the remote server, simply provide the type arguments, just as if you where using a local generic type

However, you can force a cast from a generic type parameter to any other type using a temporary Object variable

For example, you might want to use another generic type system such as Service Data Object (SDO) (see Resources).

For example, a generic type such as List is erased to simply List.

You can define method-specific generic type parameters even if the containing class does not use generics at all

Constrains a generic type parameter to require that any type argument passed to it be a reference type, or introduces a

Type represents a type parameter in the definition of a generic type or generic method, this property always returns

Is This a Generic Type or Method Definition?

Similarly, you can constrain a generic type parameter to be a reference type (a class) using the class constraint

Sets the number of generic type parameters for the current method, specifies their names, and returns an array of

Type arguments and type parameters of constructed generic types, generic type definitions, and generic method definitions

The type parameters of generic type definitions and generic method definitions are represented by instances of the

Type objects that represent the type parameters or type arguments of a generic type, and use the

Type represents a type parameter of a generic type, this property always returns

Does not represent the definition of a generic type, an

Defines the generic type parameters for the current type, specifying their number and their names, and returns an array of

Is This a Generic Type or Method?

As with instance method, you can provide constraints for generic type parameters defined by the static method

Type represents a type parameter of a generic type definition,

For a method that belongs to a generic type, use the

When calling a method that defines generic type parameters, you can provide the type to use at the call site

And naturally, a delegate can define constraints to accompany its generic type parameters

To obtain information about a generic type or type parameter at run time, you can use the methods of

Object represents a generic method that contains unassigned generic type parameters; otherwise,

Constructing an Instance of a Generic Type

You can have a base class constraint, meaning, stipulating that the generic type parameter is derived from a particular base class

You need to provide type arguments when instantiating a node, and again, you can use the linked list's own generic type parameters

Contains unassigned generic type parameters; otherwise,

Constructed generic types and generic type definitions

An attribute that references a generic type parameter will cause a compile-time error

Is in scope to obtain an array of generic type arguments for

When emitting code, a generic type parameter is represented by a

to perform a downcast with a generic type

An attribute can reference a closed constructed generic type