Class MemberHelper

Namespace

LinqToDB.Expressions

Assembly

linq2db.dll

public static class MemberHelper

Inheritance

object

MemberHelper

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Methods

ConstructorOf(Expression<Func<object>>)

public static ConstructorInfo ConstructorOf(Expression<Func<object>> func)

Parameters

func Expression<Func<object>>

Returns

ConstructorInfo

ConstructorOf<T>(Expression<Func<T, object>>)

public static ConstructorInfo ConstructorOf<T>(Expression<Func<T, object>> func)

Parameters

func Expression<Func<T, object>>

Returns

ConstructorInfo

Type Parameters

T

FieldOf<T>(Expression<Func<T, object?>>)

public static FieldInfo FieldOf<T>(Expression<Func<T, object?>> func)

Parameters

func Expression<Func<T, object>>

Returns

FieldInfo

Type Parameters

T

GetMemberInfo(Expression)

Gets the member information from given expression.

public static MemberInfo GetMemberInfo(Expression expr)

Parameters

expr Expression

The expression.

Returns

MemberInfo

Remarks

Returns member information for given expressions, e.g.:

• For: x => x.SomeProperty, returns MemberInfo of SomeProperty.
• For: x => x.SomeMethod(), returns MethodInfo of SomeMethod.
• For: x => new { X = x.Name }, return ConstructorInfo of anonymous type.
• For: x => Sql.Property<int>(x, "SomeProperty"), returns MemberInfo of "SomeProperty" if exists on type, otherwise returns DynamicColumnInfo for SomeProperty on given type.

Exceptions

ArgumentException

Only simple, non-navigational, member names are supported in this context (e.g.: x => Sql.Property(x, "SomeProperty")).

GetMemberInfo(LambdaExpression)

Gets the member information from given lambda expression. GetMemberInfo(Expression)

public static MemberInfo GetMemberInfo(LambdaExpression func)

Parameters

func LambdaExpression

The lambda expression.

Returns

MemberInfo

Exceptions

ArgumentException

Only simple, non-navigational, member names are supported in this context (e.g.: x => Sql.Property(x, "SomeProperty")).

GetMemberInfoWithType(Expression)

Gets the member information with type from given expression.

public static MemberHelper.MemberInfoWithType GetMemberInfoWithType(Expression expr)

Parameters

expr Expression

The expression.

Returns

MemberHelper.MemberInfoWithType

Remarks

Returns member information for given expressions, e.g.:

• For: x => x.SomeProperty, returns MemberInfo of SomeProperty.
• For: x => x.SomeMethod(), returns MethodInfo of SomeMethod.
• For: x => new { X = x.Name }, return ConstructorInfo of anonymous type.
• For: x => Sql.Property<int>(x, "SomeProperty"), returns MemberInfo of "SomeProperty" if exists on type, otherwise returns DynamicColumnInfo for SomeProperty on given type.

Exceptions

ArgumentException

Only simple, non-navigational, member names are supported in this context (e.g.: x => Sql.Property(x, "SomeProperty")).

GetMemberInfoWithType(LambdaExpression)

Gets the member information with type from given lambda expression. GetMemberInfo(Expression)

public static MemberHelper.MemberInfoWithType GetMemberInfoWithType(LambdaExpression func)

Parameters

func LambdaExpression

The lambda expression.

Returns

MemberHelper.MemberInfoWithType

Exceptions

ArgumentException

Only simple, non-navigational, member names are supported in this context (e.g.: x => Sql.Property(x, "SomeProperty")).

MemberOf<T>(Expression<Func<T, object?>>)

public static MemberInfo MemberOf<T>(Expression<Func<T, object?>> func)

Parameters

func Expression<Func<T, object>>

Returns

MemberInfo

Type Parameters

T

MemberOf<T, TMember>(Expression<Func<T, TMember>>)

public static MemberInfo MemberOf<T, TMember>(Expression<Func<T, TMember>> func)

Parameters

func Expression<Func<T, TMember>>

Returns

MemberInfo

Type Parameters

T

TMember

MethodOf(Expression<Action>)

public static MethodInfo MethodOf(Expression<Action> func)

Parameters

func Expression<Action>

Returns

MethodInfo

MethodOf(Expression<Func<object?>>)

public static MethodInfo MethodOf(Expression<Func<object?>> func)

Parameters

func Expression<Func<object>>

Returns

MethodInfo

MethodOfGeneric(Expression<Action>)

public static MethodInfo MethodOfGeneric(Expression<Action> func)

Parameters

func Expression<Action>

Returns

MethodInfo

MethodOfGeneric(Expression<Func<object?>>)

public static MethodInfo MethodOfGeneric(Expression<Func<object?>> func)

Parameters

func Expression<Func<object>>

Returns

MethodInfo

MethodOfGeneric<T>(Expression<Func<T, object?>>)

public static MethodInfo MethodOfGeneric<T>(Expression<Func<T, object?>> func)

Parameters

func Expression<Func<T, object>>

Returns

MethodInfo

Type Parameters

T

MethodOfGeneric<T1, T2>(Expression<Func<T1, T2, object?>>)

public static MethodInfo MethodOfGeneric<T1, T2>(Expression<Func<T1, T2, object?>> func)

Parameters

func Expression<Func<T1, T2, object>>

Returns

MethodInfo

Type Parameters

T1

T2

MethodOfGeneric<T1, T2, T3>(Expression<Func<T1, T2, T3, object?>>)

public static MethodInfo MethodOfGeneric<T1, T2, T3>(Expression<Func<T1, T2, T3, object?>> func)

Parameters

func Expression<Func<T1, T2, T3, object>>

Returns

MethodInfo

Type Parameters

T1

T2

T3

MethodOfGeneric<T1, T2, T3, T4>(Expression<Func<T1, T2, T3, T4, object?>>)

public static MethodInfo MethodOfGeneric<T1, T2, T3, T4>(Expression<Func<T1, T2, T3, T4, object?>> func)

Parameters

func Expression<Func<T1, T2, T3, T4, object>>

Returns

MethodInfo

Type Parameters

T1

T2

T3

T4

MethodOf<T>(Expression<Func<T, object?>>)

public static MethodInfo MethodOf<T>(Expression<Func<T, object?>> func)

Parameters

func Expression<Func<T, object>>

Returns

MethodInfo

Type Parameters

T

MethodOf<T1, T2>(Expression<Func<T1, T2, object?>>)

public static MethodInfo MethodOf<T1, T2>(Expression<Func<T1, T2, object?>> func)

Parameters

func Expression<Func<T1, T2, object>>

Returns

MethodInfo

Type Parameters

T1

T2

MethodOf<T1, T2, T3>(Expression<Func<T1, T2, T3, object?>>)

public static MethodInfo MethodOf<T1, T2, T3>(Expression<Func<T1, T2, T3, object?>> func)

Parameters

func Expression<Func<T1, T2, T3, object>>

Returns

MethodInfo

Type Parameters

T1

T2

T3

MethodOf<T1, T2, T3, T4>(Expression<Func<T1, T2, T3, T4, object?>>)

public static MethodInfo MethodOf<T1, T2, T3, T4>(Expression<Func<T1, T2, T3, T4, object?>> func)

Parameters

func Expression<Func<T1, T2, T3, T4, object>>

Returns

MethodInfo

Type Parameters

T1

T2

T3

T4

PropertyOf(Expression<Func<object?>>)

public static PropertyInfo PropertyOf(Expression<Func<object?>> func)

Parameters

func Expression<Func<object>>

Returns

PropertyInfo

PropertyOf<T>(Expression<Func<T, object?>>)

public static PropertyInfo PropertyOf<T>(Expression<Func<T, object?>> func)

Parameters

func Expression<Func<T, object>>

Returns

PropertyInfo

Type Parameters

T