Delen via

RelationalSqlTranslatingExpressionVisitor.TranslateCount Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Package:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Package:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Overloads

TranslateCount(Expression)
TranslateCount(SqlExpression)
Obsolete.

Translates Count over an expression to an equivalent SQL representation.

TranslateCount(Expression) 

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression TranslateCount (System.Linq.Expressions.Expression expression = default);
abstract member TranslateCount : System.Linq.Expressions.Expression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.TranslateCount : System.Linq.Expressions.Expression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
Public Overridable Function TranslateCount (Optional expression As Expression = Nothing) As SqlExpression

Parameters

expression
Expression

Returns

SqlExpression

Applies to

TranslateCount(SqlExpression)

Caution

Use IAggregateMethodCallTranslatorProvider to add translation for aggregate methods

Translates Count over an expression to an equivalent SQL representation.

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression TranslateCount (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression sqlExpression);
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? TranslateCount (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression sqlExpression);
[System.Obsolete("Use IAggregateMethodCallTranslatorProvider to add translation for aggregate methods")]
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression? TranslateCount (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression sqlExpression);
abstract member TranslateCount : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.TranslateCount : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
[<System.Obsolete("Use IAggregateMethodCallTranslatorProvider to add translation for aggregate methods")>]
abstract member TranslateCount : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.TranslateCount : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
Public Overridable Function TranslateCount (sqlExpression As SqlExpression) As SqlExpression

Parameters

sqlExpression
SqlExpression

An expression to translate Count over.

Returns

SqlExpression

A SQL translation of Count over the given expression.

Attributes
ObsoleteAttribute

Applies to