Class ReflectionExtensions

Contains a set of extensions for common reflection activities

Inheritance

System.Object

ReflectionExtensions

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: LemonEdge.Utils

Assembly: Utils.dll

Syntax

public static class ReflectionExtensions

Remarks

In general this includes methods for getting dynamic property setters and getters against unknown types. This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

Methods

ClearEventInvocations(Object, String)

Set the given event eventName for a given object obj to null

Declaration

public static void ClearEventInvocations(this object obj, string eventName)

Parameters

Type	Name	Description
System.Object	obj	The object that has an event you want to clean the invocation list for
System.String	eventName	The name of the event you want to clear against the object instance

GetGenericInstanceOfBaseType(Type, Type)

Given a type this returns the type generic type that implements the baseType this inherits

Declaration

public static Type GetGenericInstanceOfBaseType(this Type type, Type baseType)

Parameters

Type	Name	Description
System.Type	type	Finds what class this class implements of the generic specified base type. This type must inherit from basetype
System.Type	baseType	he type that has a generic argument(s) that you would like the whole type for

Returns

Type	Description
System.Type	The generic type of `baseType` that the `type` implements or inherits

Remarks

For example:

public class MyClass<T>
{
}

public class MyDecimalClass : MyClass<decimal> { }

public static Type GetMyDecimalClassType()
{
    return typeof(MyDecimalClass).GetGenericInstanceOfBaseType(typeof(MyClass<>));
}

Would return the MyClass<decimal> type

GetGenericTypeArgumentOfImplementedBaseClass(Type, Type)

Given a type that implements or inherits forGenericType that has a generic argument, this function will return the Type used as the generic argument for the forGenericType

Declaration

public static Type GetGenericTypeArgumentOfImplementedBaseClass(this Type type, Type forGenericType)

Parameters

Type	Name	Description
System.Type	type	The type that inherits or implements `forGenericType`
System.Type	forGenericType	The type that has a generic argument that you would like the generic type for

Returns

Type	Description
System.Type	The generic type argument for the `forGenericType` that the `type` implements or inherits

Remarks

For example:

public class MyClass<T>
{
}

public class MyDecimalClass : MyClass<decimal> { }

public static Type GetMyDecimalClassType()
{
    return typeof(MyDecimalClass).GetGenericTypeArgumentOfImplementedBaseClass(typeof(MyClass<>));
}

Would return the decimal type

GetValue(Type, String, Object)

Returns the value for the specified propertyName againt the specified item an instance of type type

Declaration

public static object GetValue(this Type type, string propertyName, object item)

Parameters

Type	Name	Description
System.Type	type	The type this property resides against that we want the value of
System.String	propertyName	The name of the property we want to return the value of
System.Object	item	An instance of type `type`

Returns

Type	Description
System.Object	The value of `propertyName` against the `item` instance

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

InheritsFromIncludingGeneric(Type, Type)

Indicates if the given type inherits from of implements the specified baseType including if that type has generic arguments

Declaration

public static bool InheritsFromIncludingGeneric(this Type type, Type baseType)

Parameters

Type	Name	Description
System.Type	type	The type you want to know if it inherits from `baseType`
System.Type	baseType	The type you want to know if `type` inherits from

Returns

Type	Description
System.Boolean	True if `type` inherits from `baseType` including if that type has generic arguments

InheritsFromIncludingGeneric<T>(Type)

Indicates if the given T inherits from of implements the specified type including if that type has generic arguments

Declaration

public static bool InheritsFromIncludingGeneric<T>(this Type type)

Parameters

Type	Name	Description
System.Type	type	The type you want to know if `T` inherits from

Returns

Type	Description
System.Boolean	True if `T` inherits from `type` including if that type has generic arguments

Type Parameters

Name	Description
T	The type you want to know if it inherits from `type`

InheritsFromType(Type, String)

Returns true if the specified type type inherits from a class called typeName

Declaration

public static bool InheritsFromType(this Type type, string typeName)

Parameters

Type	Name	Description
System.Type	type	The type to see if it inherits any class called `typeName`
System.String	typeName	The name of a type you want to see if the type `type` inherits

Returns

Type	Description
System.Boolean

SetValue(Type, String, Object, Object)

Set the value for the specified propertyName to value againt the specified item an instance of type type

Declaration

public static void SetValue(this Type type, string propertyName, object item, object value)

Parameters

Type	Name	Description
System.Type	type	The type this property resides against that we want the value of
System.String	propertyName	The name of the property we want to return the value of
System.Object	item	An instance of type `type`
System.Object	value	The value to set for the `propertyName` against an `item` instance

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

ToCodeTypeName(Type)

Used for auto code generation. Returns the name of a given type in c# style syntax

Declaration

public static string ToCodeTypeName(this Type type)

Parameters

Type	Name	Description
System.Type	type	The type to return a c# formatted type code for

Returns

Type	Description
System.String	The specified type in c# style coding

Remarks

For example List<int> would be returned as List<int> and not List'1Int

ToPropertyAccessor<T>(PropertyInfo, Nullable<Int32>)

Returns a function that given an instance of T will return the value of property p

Declaration

public static Func<T, object> ToPropertyAccessor<T>(this PropertyInfo p, int? index = default(int? ))

Parameters

Type	Name	Description
System.Reflection.PropertyInfo	p	The property to return a value for
System.Nullable<System.Int32>	index	If the property has an indexer this holds the index value to the property

Returns

Type	Description
System.Func<T, System.Object>	An System.Func<T, TResult> that takes an instance of the object and returns the value for the specified `p` property

Type Parameters

Name	Description
T	The type of the item that will be passed to return the property value of `p` from

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

ToPropertyAccessor<T>(PropertyInfo, Type, Nullable<Int32>)

Returns a function that given an instance of T will return the value of property p

Declaration

public static Func<T, object> ToPropertyAccessor<T>(this PropertyInfo p, Type actualTypeThatImplementsT, int? index = default(int? ))

Parameters

Type	Name	Description
System.Reflection.PropertyInfo	p	The property to return a value for
System.Type	actualTypeThatImplementsT	The actual type that implements the property `p`. This may not be `T` if this type inherits or implements `T`
System.Nullable<System.Int32>	index	If the property has an indexer this holds the index value to the property

Returns

Type	Description
System.Func<T, System.Object>	An System.Func<T, TResult> that takes an instance of the object and returns the value for the specified `p` property

Type Parameters

Name	Description
T	The type of the item that will be passed to return the property value of `p` from

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

ToPropertyAccessor<T, R>(PropertyInfo, Nullable<Int32>)

Returns a function that given an instance of T will return the value of property p as type R

Declaration

public static Func<T, R> ToPropertyAccessor<T, R>(this PropertyInfo p, int? index = default(int? ))

Parameters

Type	Name	Description
System.Reflection.PropertyInfo	p	The property to return a value for
System.Nullable<System.Int32>	index	If the property has an indexer this holds the index value to the property

Returns

Type	Description
System.Func<T, R>	An System.Func<T, TResult> that takes an instance of the object and returns the value for the specified `p` property

Type Parameters

Name	Description
T	The type of the item that will be passed to return the property value of `p` from
R	The return type from the property

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

ToPropertyAccessorExpression<T, R>(PropertyInfo, Nullable<Int32>, Boolean)

Returns a expression (for use with Linq and other technologies) of a function that given an instance of T will return the value of property p as type R

Declaration

public static Expression<Func<T, R>> ToPropertyAccessorExpression<T, R>(this PropertyInfo p, int? index = default(int? ), bool cast = true)

Parameters

Type	Name	Description
System.Reflection.PropertyInfo	p	The property to return a value for
System.Nullable<System.Int32>	index	If the property has an indexer this holds the index value to the property
System.Boolean	cast	Indicates if the value being returned should be cast to `R` or not

Returns

Type	Description
System.Linq.Expressions.Expression<System.Func<T, R>>	An System.Linq.Expressions.Expression<TDelegate> (for use with Linq and other technologies) of System.Func<T, TResult> that takes an instance of the object and returns the value for the specified `p` property

Type Parameters

Name	Description
T	The type of the item that will be passed to return the property value of `p` from
R	The return type from the property

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)

ToPropertySetter<T>(PropertyInfo, Nullable<Int32>)

Returns an action that can be used to set the property value for the specified propInfo against an instance of the type

Declaration

public static Action<T, object> ToPropertySetter<T>(this PropertyInfo propInfo, int? index = default(int? ))

Parameters

Type	Name	Description
System.Reflection.PropertyInfo	propInfo	The propertyinfo which describes the property you want to be able to set the value against
System.Nullable<System.Int32>	index	If the property has an indexer this holds the index value to the property

Returns

Type	Description
System.Action<T, System.Object>	An System.Action<T1, T2> that takes an instance of the object and the value to set the specified `propInfo` property to

Type Parameters

Name	Description
T	The type of object that you want to set a property value against

Remarks

This is significantly faster than using System.Reflection.PropertyInfo.GetValue(System.Object) and System.Reflection.PropertyInfo.SetValue(System.Object,System.Object)