And(IPredicateDescription[]) Method

Returns a CompositePredicateDescription which represents a conditional AND operation.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Shared Function And( _
   ByVal ParamArray predicateDescriptions() As IPredicateDescription _
) As CompositePredicateDescription

'Usage
 
Dim predicateDescriptions() As IPredicateDescription
Dim value As CompositePredicateDescription
 
value = PredicateBuilder.And(predicateDescriptions)

public static CompositePredicateDescription And( 
   params IPredicateDescription[] predicateDescriptions
)

Parameters

predicateDescriptions

Example

public void AndQuery() {
  var mgr = new DomainModelEntityManager();

  var expr1 = new PredicateDescription(typeof(Customer), "Country", FilterOperator.IsEqualTo, "Mexico");
  var expr2 = new PredicateDescription(typeof(Customer), "CompanyName", FilterOperator.StartsWith, "A");

  // Where companyname starts with A and country = mexico
  var finalcrit = PredicateBuilder.And(expr1, expr2);
  var query = mgr.Customers.Where(finalcrit);
  var list = query.ToList();
}

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

PredicateBuilder Class
PredicateBuilder Members
Overload List