Make(Type,String,FilterOperator,Object) Method

Return a PredicateDescription from the filter information provided.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Shared Function Make( _
   ByVal type As Type, _
   ByVal propertyName As String, _
   ByVal filterOp As FilterOperator, _
   ByVal value As Object _
) As PredicateDescription

'Usage
 
Dim type As Type
Dim propertyName As String
Dim filterOp As FilterOperator
Dim value As Object
Dim value As PredicateDescription
 
value = PredicateBuilder.Make(type, propertyName, filterOp, value)

public static PredicateDescription Make( 
   Type type,
   string propertyName,
   FilterOperator filterOp,
   object value
)

Parameters

type: The type of object to be queried
propertyName: The property name to use in the filter
filterOp: the filter operator
value: The filter value

Remarks

Use Make to build a dynamic predicate.

Example

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

  var expr1 = PredicateBuilder.Make(typeof(Product), "UnitPrice", FilterOperator.IsLessThanOrEqualTo, 10);
  var expr2 = PredicateBuilder.Make(typeof(Product), "Discontinued", FilterOperator.IsEqualTo, false);

  var results = mgr.Products.Where(expr1.And(expr2)).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