Class PredicateBuilder

Namespace

System.Linq

Assembly

Volo.Abp.Core.dll

See http://www.albahari.com/expressions for information and examples.

public static class PredicateBuilder

Inheritance

object

PredicateBuilder

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Methods

And<T>(Expression<Func<T, bool>>, Expression<Func<T, bool>>)

AND

public static Expression<Func<T, bool>> And<T>(this Expression<Func<T, bool>> expr1, Expression<Func<T, bool>> expr2)

Parameters

expr1 Expression<Func<T, bool>>

expr2 Expression<Func<T, bool>>

Returns

Expression<Func<T, bool>>

Type Parameters

T

Extend<T>(ExpressionStarter<T>, Expression<Func<T, bool>>, PredicateOperator)

Extends the specified source Predicate with another Predicate and the specified PredicateOperator.

public static Expression<Func<T, bool>> Extend<T>(this ExpressionStarter<T> first, Expression<Func<T, bool>> second, PredicateOperator @operator = PredicateOperator.Or)

Parameters

first ExpressionStarter<T>

The source Predicate.

second Expression<Func<T, bool>>

The second Predicate.

operator PredicateOperator

The Operator (can be "And" or "Or").

Returns

Expression<Func<T, bool>>

Expression{Func{T, bool}}

Type Parameters

T

The type

Extend<T>(Expression<Func<T, bool>>, Expression<Func<T, bool>>, PredicateOperator)

Extends the specified source Predicate with another Predicate and the specified PredicateOperator.

public static Expression<Func<T, bool>> Extend<T>(this Expression<Func<T, bool>> first, Expression<Func<T, bool>> second, PredicateOperator @operator = PredicateOperator.Or)

Parameters

first Expression<Func<T, bool>>

The source Predicate.

second Expression<Func<T, bool>>

The second Predicate.

operator PredicateOperator

The Operator (can be "And" or "Or").

Returns

Expression<Func<T, bool>>

Expression{Func{T, bool}}

Type Parameters

T

The type

New<T>(bool)

Create an expression with a stub expression true or false to use when the expression is not yet started.

public static ExpressionStarter<T> New<T>(bool defaultExpression)

Parameters

defaultExpression bool

Returns

ExpressionStarter<T>

Type Parameters

T

New<T>(Expression<Func<T, bool>>?)

Start an expression

public static ExpressionStarter<T> New<T>(Expression<Func<T, bool>>? expr = null)

Parameters

expr Expression<Func<T, bool>>

Returns

ExpressionStarter<T>

Type Parameters

T

Or<T>(Expression<Func<T, bool>>, Expression<Func<T, bool>>)

OR

public static Expression<Func<T, bool>> Or<T>(this Expression<Func<T, bool>> expr1, Expression<Func<T, bool>> expr2)

Parameters

expr1 Expression<Func<T, bool>>

expr2 Expression<Func<T, bool>>

Returns

Expression<Func<T, bool>>

Type Parameters

T