Class ColumnExpression

Namespace

Microsoft.EntityFrameworkCore.Query.SqlExpressions

Assembly

Microsoft.EntityFrameworkCore.Relational.dll

An expression that represents a column in a SQL tree.

This type is typically used by database providers (and other extensions). It is generally not used in application code.

This class is not publicly constructable. If this is a problem for your application or provider, then please file an issue at https://github.com/dotnet/efcore.

public sealed class ColumnExpression : SqlExpression, IPrintableExpression

Inheritance

object

Expression

SqlExpression

ColumnExpression

Implements

IPrintableExpression

Inherited Members

SqlExpression.Type

SqlExpression.TypeMapping

SqlExpression.NodeType

Expression.Assign(Expression, Expression)

Expression.MakeBinary(ExpressionType, Expression, Expression)

Expression.MakeBinary(ExpressionType, Expression, Expression, bool, MethodInfo)

Expression.MakeBinary(ExpressionType, Expression, Expression, bool, MethodInfo, LambdaExpression)

Expression.Equal(Expression, Expression)

Expression.Equal(Expression, Expression, bool, MethodInfo)

Expression.ReferenceEqual(Expression, Expression)

Expression.NotEqual(Expression, Expression)

Expression.NotEqual(Expression, Expression, bool, MethodInfo)

Expression.ReferenceNotEqual(Expression, Expression)

Expression.GreaterThan(Expression, Expression)

Expression.GreaterThan(Expression, Expression, bool, MethodInfo)

Expression.LessThan(Expression, Expression)

Expression.LessThan(Expression, Expression, bool, MethodInfo)

Expression.GreaterThanOrEqual(Expression, Expression)

Expression.GreaterThanOrEqual(Expression, Expression, bool, MethodInfo)

Expression.LessThanOrEqual(Expression, Expression)

Expression.LessThanOrEqual(Expression, Expression, bool, MethodInfo)

Expression.AndAlso(Expression, Expression)

Expression.AndAlso(Expression, Expression, MethodInfo)

Expression.OrElse(Expression, Expression)

Expression.OrElse(Expression, Expression, MethodInfo)

Expression.Coalesce(Expression, Expression)

Expression.Coalesce(Expression, Expression, LambdaExpression)

Expression.Add(Expression, Expression)

Expression.Add(Expression, Expression, MethodInfo)

Expression.AddAssign(Expression, Expression)

Expression.AddAssign(Expression, Expression, MethodInfo)

Expression.AddAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.AddAssignChecked(Expression, Expression)

Expression.AddAssignChecked(Expression, Expression, MethodInfo)

Expression.AddAssignChecked(Expression, Expression, MethodInfo, LambdaExpression)

Expression.AddChecked(Expression, Expression)

Expression.AddChecked(Expression, Expression, MethodInfo)

Expression.Subtract(Expression, Expression)

Expression.Subtract(Expression, Expression, MethodInfo)

Expression.SubtractAssign(Expression, Expression)

Expression.SubtractAssign(Expression, Expression, MethodInfo)

Expression.SubtractAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.SubtractAssignChecked(Expression, Expression)

Expression.SubtractAssignChecked(Expression, Expression, MethodInfo)

Expression.SubtractAssignChecked(Expression, Expression, MethodInfo, LambdaExpression)

Expression.SubtractChecked(Expression, Expression)

Expression.SubtractChecked(Expression, Expression, MethodInfo)

Expression.Divide(Expression, Expression)

Expression.Divide(Expression, Expression, MethodInfo)

Expression.DivideAssign(Expression, Expression)

Expression.DivideAssign(Expression, Expression, MethodInfo)

Expression.DivideAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.Modulo(Expression, Expression)

Expression.Modulo(Expression, Expression, MethodInfo)

Expression.ModuloAssign(Expression, Expression)

Expression.ModuloAssign(Expression, Expression, MethodInfo)

Expression.ModuloAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.Multiply(Expression, Expression)

Expression.Multiply(Expression, Expression, MethodInfo)

Expression.MultiplyAssign(Expression, Expression)

Expression.MultiplyAssign(Expression, Expression, MethodInfo)

Expression.MultiplyAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.MultiplyAssignChecked(Expression, Expression)

Expression.MultiplyAssignChecked(Expression, Expression, MethodInfo)

Expression.MultiplyAssignChecked(Expression, Expression, MethodInfo, LambdaExpression)

Expression.MultiplyChecked(Expression, Expression)

Expression.MultiplyChecked(Expression, Expression, MethodInfo)

Expression.LeftShift(Expression, Expression)

Expression.LeftShift(Expression, Expression, MethodInfo)

Expression.LeftShiftAssign(Expression, Expression)

Expression.LeftShiftAssign(Expression, Expression, MethodInfo)

Expression.LeftShiftAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.RightShift(Expression, Expression)

Expression.RightShift(Expression, Expression, MethodInfo)

Expression.RightShiftAssign(Expression, Expression)

Expression.RightShiftAssign(Expression, Expression, MethodInfo)

Expression.RightShiftAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.And(Expression, Expression)

Expression.And(Expression, Expression, MethodInfo)

Expression.AndAssign(Expression, Expression)

Expression.AndAssign(Expression, Expression, MethodInfo)

Expression.AndAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.Or(Expression, Expression)

Expression.Or(Expression, Expression, MethodInfo)

Expression.OrAssign(Expression, Expression)

Expression.OrAssign(Expression, Expression, MethodInfo)

Expression.OrAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.ExclusiveOr(Expression, Expression)

Expression.ExclusiveOr(Expression, Expression, MethodInfo)

Expression.ExclusiveOrAssign(Expression, Expression)

Expression.ExclusiveOrAssign(Expression, Expression, MethodInfo)

Expression.ExclusiveOrAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.Power(Expression, Expression)

Expression.Power(Expression, Expression, MethodInfo)

Expression.PowerAssign(Expression, Expression)

Expression.PowerAssign(Expression, Expression, MethodInfo)

Expression.PowerAssign(Expression, Expression, MethodInfo, LambdaExpression)

Expression.ArrayIndex(Expression, Expression)

Expression.Block(Expression, Expression)

Expression.Block(Expression, Expression, Expression)

Expression.Block(Expression, Expression, Expression, Expression)

Expression.Block(Expression, Expression, Expression, Expression, Expression)

Expression.Block(params Expression[])

Expression.Block(IEnumerable<Expression>)

Expression.Block(Type, params Expression[])

Expression.Block(Type, IEnumerable<Expression>)

Expression.Block(IEnumerable<ParameterExpression>, params Expression[])

Expression.Block(Type, IEnumerable<ParameterExpression>, params Expression[])

Expression.Block(IEnumerable<ParameterExpression>, IEnumerable<Expression>)

Expression.Block(Type, IEnumerable<ParameterExpression>, IEnumerable<Expression>)

Expression.Catch(Type, Expression)

Expression.Catch(ParameterExpression, Expression)

Expression.Catch(Type, Expression, Expression)

Expression.Catch(ParameterExpression, Expression, Expression)

Expression.MakeCatchBlock(Type, ParameterExpression, Expression, Expression)

Expression.Condition(Expression, Expression, Expression)

Expression.Condition(Expression, Expression, Expression, Type)

Expression.IfThen(Expression, Expression)

Expression.IfThenElse(Expression, Expression, Expression)

Expression.Constant(object)

Expression.Constant(object, Type)

Expression.DebugInfo(SymbolDocumentInfo, int, int, int, int)

Expression.ClearDebugInfo(SymbolDocumentInfo)

Expression.Empty()

Expression.Default(Type)

Expression.ElementInit(MethodInfo, params Expression[])

Expression.ElementInit(MethodInfo, IEnumerable<Expression>)

Expression.Reduce()

Expression.ReduceAndCheck()

Expression.ReduceExtensions()

Expression.ToString()

Expression.Dynamic(CallSiteBinder, Type, IEnumerable<Expression>)

Expression.Dynamic(CallSiteBinder, Type, Expression)

Expression.Dynamic(CallSiteBinder, Type, Expression, Expression)

Expression.Dynamic(CallSiteBinder, Type, Expression, Expression, Expression)

Expression.Dynamic(CallSiteBinder, Type, Expression, Expression, Expression, Expression)

Expression.Dynamic(CallSiteBinder, Type, params Expression[])

Expression.MakeDynamic(Type, CallSiteBinder, IEnumerable<Expression>)

Expression.MakeDynamic(Type, CallSiteBinder, Expression)

Expression.MakeDynamic(Type, CallSiteBinder, Expression, Expression)

Expression.MakeDynamic(Type, CallSiteBinder, Expression, Expression, Expression)

Expression.MakeDynamic(Type, CallSiteBinder, Expression, Expression, Expression, Expression)

Expression.MakeDynamic(Type, CallSiteBinder, params Expression[])

Expression.Break(LabelTarget)

Expression.Break(LabelTarget, Expression)

Expression.Break(LabelTarget, Type)

Expression.Break(LabelTarget, Expression, Type)

Expression.Continue(LabelTarget)

Expression.Continue(LabelTarget, Type)

Expression.Return(LabelTarget)

Expression.Return(LabelTarget, Type)

Expression.Return(LabelTarget, Expression)

Expression.Return(LabelTarget, Expression, Type)

Expression.Goto(LabelTarget)

Expression.Goto(LabelTarget, Type)

Expression.Goto(LabelTarget, Expression)

Expression.Goto(LabelTarget, Expression, Type)

Expression.MakeGoto(GotoExpressionKind, LabelTarget, Expression, Type)

Expression.MakeIndex(Expression, PropertyInfo, IEnumerable<Expression>)

Expression.ArrayAccess(Expression, params Expression[])

Expression.ArrayAccess(Expression, IEnumerable<Expression>)

Expression.Property(Expression, string, params Expression[])

Expression.Property(Expression, PropertyInfo, params Expression[])

Expression.Property(Expression, PropertyInfo, IEnumerable<Expression>)

Expression.Invoke(Expression, params Expression[])

Expression.Invoke(Expression, IEnumerable<Expression>)

Expression.Label(LabelTarget)

Expression.Label(LabelTarget, Expression)

Expression.Label()

Expression.Label(string)

Expression.Label(Type)

Expression.Label(Type, string)

Expression.Lambda<TDelegate>(Expression, params ParameterExpression[])

Expression.Lambda<TDelegate>(Expression, bool, params ParameterExpression[])

Expression.Lambda<TDelegate>(Expression, IEnumerable<ParameterExpression>)

Expression.Lambda<TDelegate>(Expression, bool, IEnumerable<ParameterExpression>)

Expression.Lambda<TDelegate>(Expression, string, IEnumerable<ParameterExpression>)

Expression.Lambda<TDelegate>(Expression, string, bool, IEnumerable<ParameterExpression>)

Expression.Lambda(Expression, params ParameterExpression[])

Expression.Lambda(Expression, bool, params ParameterExpression[])

Expression.Lambda(Expression, IEnumerable<ParameterExpression>)

Expression.Lambda(Expression, bool, IEnumerable<ParameterExpression>)

Expression.Lambda(Type, Expression, params ParameterExpression[])

Expression.Lambda(Type, Expression, bool, params ParameterExpression[])

Expression.Lambda(Type, Expression, IEnumerable<ParameterExpression>)

Expression.Lambda(Type, Expression, bool, IEnumerable<ParameterExpression>)

Expression.Lambda(Expression, string, IEnumerable<ParameterExpression>)

Expression.Lambda(Expression, string, bool, IEnumerable<ParameterExpression>)

Expression.Lambda(Type, Expression, string, IEnumerable<ParameterExpression>)

Expression.Lambda(Type, Expression, string, bool, IEnumerable<ParameterExpression>)

Expression.GetFuncType(params Type[])

Expression.TryGetFuncType(Type[], out Type)

Expression.GetActionType(params Type[])

Expression.TryGetActionType(Type[], out Type)

Expression.GetDelegateType(params Type[])

Expression.ListInit(NewExpression, params Expression[])

Expression.ListInit(NewExpression, IEnumerable<Expression>)

Expression.ListInit(NewExpression, MethodInfo, params Expression[])

Expression.ListInit(NewExpression, MethodInfo, IEnumerable<Expression>)

Expression.ListInit(NewExpression, params ElementInit[])

Expression.ListInit(NewExpression, IEnumerable<ElementInit>)

Expression.Loop(Expression)

Expression.Loop(Expression, LabelTarget)

Expression.Loop(Expression, LabelTarget, LabelTarget)

Expression.Bind(MemberInfo, Expression)

Expression.Bind(MethodInfo, Expression)

Expression.Field(Expression, FieldInfo)

Expression.Field(Expression, string)

Expression.Field(Expression, Type, string)

Expression.Property(Expression, string)

Expression.Property(Expression, Type, string)

Expression.Property(Expression, PropertyInfo)

Expression.Property(Expression, MethodInfo)

Expression.PropertyOrField(Expression, string)

Expression.MakeMemberAccess(Expression, MemberInfo)

Expression.MemberInit(NewExpression, params MemberBinding[])

Expression.MemberInit(NewExpression, IEnumerable<MemberBinding>)

Expression.ListBind(MemberInfo, params ElementInit[])

Expression.ListBind(MemberInfo, IEnumerable<ElementInit>)

Expression.ListBind(MethodInfo, params ElementInit[])

Expression.ListBind(MethodInfo, IEnumerable<ElementInit>)

Expression.MemberBind(MemberInfo, params MemberBinding[])

Expression.MemberBind(MemberInfo, IEnumerable<MemberBinding>)

Expression.MemberBind(MethodInfo, params MemberBinding[])

Expression.MemberBind(MethodInfo, IEnumerable<MemberBinding>)

Expression.Call(MethodInfo, Expression)

Expression.Call(MethodInfo, Expression, Expression)

Expression.Call(MethodInfo, Expression, Expression, Expression)

Expression.Call(MethodInfo, Expression, Expression, Expression, Expression)

Expression.Call(MethodInfo, Expression, Expression, Expression, Expression, Expression)

Expression.Call(MethodInfo, params Expression[])

Expression.Call(MethodInfo, IEnumerable<Expression>)

Expression.Call(Expression, MethodInfo)

Expression.Call(Expression, MethodInfo, params Expression[])

Expression.Call(Expression, MethodInfo, Expression, Expression)

Expression.Call(Expression, MethodInfo, Expression, Expression, Expression)

Expression.Call(Expression, string, Type[], params Expression[])

Expression.Call(Type, string, Type[], params Expression[])

Expression.Call(Expression, MethodInfo, IEnumerable<Expression>)

Expression.ArrayIndex(Expression, params Expression[])

Expression.ArrayIndex(Expression, IEnumerable<Expression>)

Expression.NewArrayInit(Type, params Expression[])

Expression.NewArrayInit(Type, IEnumerable<Expression>)

Expression.NewArrayBounds(Type, params Expression[])

Expression.NewArrayBounds(Type, IEnumerable<Expression>)

Expression.New(ConstructorInfo)

Expression.New(ConstructorInfo, params Expression[])

Expression.New(ConstructorInfo, IEnumerable<Expression>)

Expression.New(ConstructorInfo, IEnumerable<Expression>, IEnumerable<MemberInfo>)

Expression.New(ConstructorInfo, IEnumerable<Expression>, params MemberInfo[])

Expression.New(Type)

Expression.Parameter(Type)

Expression.Variable(Type)

Expression.Parameter(Type, string)

Expression.Variable(Type, string)

Expression.RuntimeVariables(params ParameterExpression[])

Expression.RuntimeVariables(IEnumerable<ParameterExpression>)

Expression.SwitchCase(Expression, params Expression[])

Expression.SwitchCase(Expression, IEnumerable<Expression>)

Expression.Switch(Expression, params SwitchCase[])

Expression.Switch(Expression, Expression, params SwitchCase[])

Expression.Switch(Expression, Expression, MethodInfo, params SwitchCase[])

Expression.Switch(Type, Expression, Expression, MethodInfo, params SwitchCase[])

Expression.Switch(Expression, Expression, MethodInfo, IEnumerable<SwitchCase>)

Expression.Switch(Type, Expression, Expression, MethodInfo, IEnumerable<SwitchCase>)

Expression.SymbolDocument(string)

Expression.SymbolDocument(string, Guid)

Expression.SymbolDocument(string, Guid, Guid)

Expression.SymbolDocument(string, Guid, Guid, Guid)

Expression.TryFault(Expression, Expression)

Expression.TryFinally(Expression, Expression)

Expression.TryCatch(Expression, params CatchBlock[])

Expression.TryCatchFinally(Expression, Expression, params CatchBlock[])

Expression.MakeTry(Type, Expression, Expression, Expression, IEnumerable<CatchBlock>)

Expression.TypeIs(Expression, Type)

Expression.TypeEqual(Expression, Type)

Expression.MakeUnary(ExpressionType, Expression, Type)

Expression.MakeUnary(ExpressionType, Expression, Type, MethodInfo)

Expression.Negate(Expression)

Expression.Negate(Expression, MethodInfo)

Expression.UnaryPlus(Expression)

Expression.UnaryPlus(Expression, MethodInfo)

Expression.NegateChecked(Expression)

Expression.NegateChecked(Expression, MethodInfo)

Expression.Not(Expression)

Expression.Not(Expression, MethodInfo)

Expression.IsFalse(Expression)

Expression.IsFalse(Expression, MethodInfo)

Expression.IsTrue(Expression)

Expression.IsTrue(Expression, MethodInfo)

Expression.OnesComplement(Expression)

Expression.OnesComplement(Expression, MethodInfo)

Expression.TypeAs(Expression, Type)

Expression.Unbox(Expression, Type)

Expression.Convert(Expression, Type)

Expression.Convert(Expression, Type, MethodInfo)

Expression.ConvertChecked(Expression, Type)

Expression.ConvertChecked(Expression, Type, MethodInfo)

Expression.ArrayLength(Expression)

Expression.Quote(Expression)

Expression.Rethrow()

Expression.Rethrow(Type)

Expression.Throw(Expression)

Expression.Throw(Expression, Type)

Expression.Increment(Expression)

Expression.Increment(Expression, MethodInfo)

Expression.Decrement(Expression)

Expression.Decrement(Expression, MethodInfo)

Expression.PreIncrementAssign(Expression)

Expression.PreIncrementAssign(Expression, MethodInfo)

Expression.PreDecrementAssign(Expression)

Expression.PreDecrementAssign(Expression, MethodInfo)

Expression.PostIncrementAssign(Expression)

Expression.PostIncrementAssign(Expression, MethodInfo)

Expression.PostDecrementAssign(Expression)

Expression.PostDecrementAssign(Expression, MethodInfo)

Expression.CanReduce

object.GetType()

object.Equals(object, object)

object.ReferenceEquals(object, object)

Properties

IsNullable

The bool value indicating if this column can have null values.

public bool IsNullable { get; }

Property Value

bool

Name

The name of the column.

public string Name { get; }

Property Value

string

Table

The table from which column is being referenced.

public TableExpressionBase Table { get; }

Property Value

TableExpressionBase

Methods

Equals(object)

public override bool Equals(object obj)

Parameters

obj object

Returns

bool

GetHashCode()

public override int GetHashCode()

Returns

int

MakeNullable()

Makes this column nullable.

public ColumnExpression MakeNullable()

Returns

ColumnExpression

A new expression which has IsNullable property set to true.

Print(ExpressionPrinter)

protected override void Print(ExpressionPrinter expressionPrinter)

Parameters

expressionPrinter ExpressionPrinter

VisitChildren(ExpressionVisitor)

protected override Expression VisitChildren(ExpressionVisitor visitor)

Parameters

visitor ExpressionVisitor

Returns

Expression