Class FilterDescriptor

Represents a filter descriptor of the form Member-Operator-Value.

Inheritance
System.Object
DescriptorBase
FilterDescriptorBase
OperatorValueFilterDescriptorBase
FilterDescriptor
ChartFilterDescriptor
Inherited Members
Namespace: Telerik.Windows.Data
Assembly: Telerik.Windows.Data.dll

Syntax

public class FilterDescriptor : OperatorValueFilterDescriptorBase, ISuspendNotifications, IFilterDescriptor, INotifyPropertyChanged

Constructors

FilterDescriptor()

Initializes a new instance of the FilterDescriptor class.

Declaration
public FilterDescriptor()

FilterDescriptor(String, FilterOperator, Object)

Initializes a new instance of the FilterDescriptor class.

Declaration
public FilterDescriptor(string member, FilterOperator filterOperator, object filterValue)
Parameters
System.String member

The member.
FilterOperator filterOperator

The filter operator.
System.Object filterValue

The filter value.

FilterDescriptor(String, FilterOperator, Object, Boolean)

Initializes a new instance of the FilterDescriptor class.

Declaration
public FilterDescriptor(string member, FilterOperator filterOperator, object filterValue, bool caseSensitive)
Parameters
System.String member

The member.
FilterOperator filterOperator

The filter operator.
System.Object filterValue

The filter value.
System.Boolean caseSensitive

If set to true indicates that this filter descriptor will be case sensitive.

FilterDescriptor(String, FilterOperator, Object, Boolean, Type)

Initializes a new instance of the FilterDescriptor class.

Declaration
public FilterDescriptor(string member, FilterOperator filterOperator, object filterValue, bool caseSensitive, Type memberType)
Parameters
System.String member

The member.
FilterOperator filterOperator

The filter operator.
System.Object filterValue

The filter value.
System.Boolean caseSensitive

If set to true indicates that this filter descriptor will be case sensitive.
System.Type memberType

The Type of the member.

FilterDescriptor(String, FilterOperator, Object, CultureInfo)

Initializes a new instance of the FilterDescriptor class.

Declaration
public FilterDescriptor(string member, FilterOperator filterOperator, object filterValue, CultureInfo cultureInfo)
Parameters
System.String member

The member.
FilterOperator filterOperator

The filter operator.
System.Object filterValue

The filter value.
System.Globalization.CultureInfo cultureInfo

The culture of the filter descriptor.

Fields

MemberProperty

Identifies the Member dependency property.

Declaration
public static readonly DependencyProperty MemberProperty
Field Value
System.Windows.DependencyProperty

Properties

IsActive

Gets a value indicating whether this filter is active. A filter is considered active if its Value is different from OperatorValueFilterDescriptorBase.UnsetValue.

Declaration
public override bool IsActive { get; }
Property Value
System.Boolean

A value indicating whether this filter is active.
Overrides
Remarks

A filter is considered active if its Value is different from OperatorValueFilterDescriptorBase.UnsetValue.

Member

Gets or sets the member name which will be used for filtering.

Declaration
public string Member { get; set; }
Property Value
System.String

The member that will be used for filtering.

MemberType

Gets or sets the type of the member that is used for filtering. Set this property if the member type cannot be resolved automatically. Such cases are: items with ICustomTypeDescriptor, XmlNode or DataRow. Changing this property does not raise PropertyChanged event.

Declaration
public Type MemberType { get; set; }
Property Value
System.Type

The type of the member used for filtering.

Methods

CreateFilterExpression(ParameterExpression)

Creates a predicate filter expression used for collection filtering.

Declaration
protected override Expression CreateFilterExpression(ParameterExpression parameterExpression)
Parameters
System.Linq.Expressions.ParameterExpression parameterExpression

The parameter expression, which will be used for filtering.
Returns
System.Linq.Expressions.Expression

A predicate filter expression.
Overrides
Remarks

Creates a predicate filter expression.

ToString()

Declaration
public override string ToString()
Returns
System.String

Extension Methods