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SqlExpressionFactory.Case Method

Definition

Overloads

Case(SqlExpression, CaseWhenClause[])
Obsolete.

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

Case(IReadOnlyList<CaseWhenClause>, SqlExpression)

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

Case(SqlExpression, SqlExpression, CaseWhenClause[])
Case(SqlExpression, IReadOnlyList<CaseWhenClause>, SqlExpression)

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

Case(SqlExpression, IReadOnlyList<CaseWhenClause>, SqlExpression, SqlExpression)

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

Case(SqlExpression, CaseWhenClause[])

Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs

Caution

Use overload which takes IReadOnlyList instead of params

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, params Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause[] whenClauses);
C#
[System.Obsolete("Use overload which takes IReadOnlyList instead of params")]
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, params Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause[] whenClauses);

Parameters

operand
SqlExpression

An expression to compare with Test in whenClauses.

whenClauses
CaseWhenClause[]

A list of CaseWhenClause to compare and get result from.

Returns

An expression representing a CASE statement in a SQL tree.

Implements

Attributes

Applies to

Entity Framework Core 6.0 y otras versiones
Producto Versiones (Obsoleto)
Entity Framework Core 3.0, 3.1 (5.0, 6.0)

Case(IReadOnlyList<CaseWhenClause>, SqlExpression)

Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression elseResult);
C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? elseResult);
C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression Case (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? elseResult);

Parameters

whenClauses
IReadOnlyList<CaseWhenClause>

A list of CaseWhenClause to evaluate condition and get result from.

elseResult
SqlExpression

A value to return if no whenClauses matches, if any.

Returns

An expression representing a CASE statement in a SQL tree.

Implements

Applies to

Entity Framework Core 9.0 y otras versiones
Producto Versiones
Entity Framework Core 3.0, 3.1, 5.0, 6.0, 7.0, 8.0, 9.0

Case(SqlExpression, SqlExpression, CaseWhenClause[])

Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression elseResult, params Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause[] whenClauses);

Parameters

operand
SqlExpression
elseResult
SqlExpression
whenClauses
CaseWhenClause[]

Returns

Applies to

Entity Framework Core 3.1 y Entity Framework Core 3.0
Producto Versiones
Entity Framework Core 3.0, 3.1

Case(SqlExpression, IReadOnlyList<CaseWhenClause>, SqlExpression)

Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs
Source:
SqlExpressionFactory.cs

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression elseResult);
C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? operand, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? elseResult);

Parameters

operand
SqlExpression

An expression to compare with Test in whenClauses.

whenClauses
IReadOnlyList<CaseWhenClause>

A list of CaseWhenClause to compare and get result from.

elseResult
SqlExpression

A value to return if no whenClauses matches, if any.

Returns

An expression representing a CASE statement in a SQL tree.

Implements

Applies to

Entity Framework Core 8.0 y otras versiones
Producto Versiones
Entity Framework Core 5.0, 6.0, 7.0, 8.0

Case(SqlExpression, IReadOnlyList<CaseWhenClause>, SqlExpression, SqlExpression)

Source:
SqlExpressionFactory.cs

Creates a new CaseExpression which represent a CASE statement in a SQL tree.

C#
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression Case (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? operand, System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? elseResult, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? existingExpression = default);

Parameters

operand
SqlExpression

An expression to compare with Test in whenClauses.

whenClauses
IReadOnlyList<CaseWhenClause>

A list of CaseWhenClause to compare or evaluate and get result from.

elseResult
SqlExpression

A value to return if no whenClauses matches, if any.

existingExpression
SqlExpression

An optional expression that can be re-used if it matches the new expression.

Returns

An expression representing a CASE statement in a SQL tree.

Implements

Applies to

Entity Framework Core 9.0
Producto Versiones
Entity Framework Core 9.0