Class ConstantFilterAttribute

Data object constant value filter attribute

Inheritance
Object
Attribute
FilterBaseAttribute
FilterAttribute
ConstantFilterAttribute
Inherited Members
Namespace: XData.Mapping
Assembly: XData.docfx.dll
Syntax
[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
public sealed class ConstantFilterAttribute : FilterAttribute
Remarks

Filter value can be constant, data object variable value (see Variables), current date or time

Constructors

| Improve this Doc View Source

ConstantFilterAttribute(String, String, String, Object)

Constant filter attribute

Declaration
public ConstantFilterAttribute(string name, string source, string fieldName, object constant)
Parameters
Type Name Description
String name

Filter name
String source

Filter source alias
String fieldName

Filter field name
Object constant

Filter value
Exceptions
Type Condition
XDataRuntimeException

Filter name cannot be null or empty string

Properties

| Improve this Doc View Source

ConstantType

Filter value type

Declaration
public FilterConstantType ConstantType { get; set; }
Property Value
Type Description
FilterConstantType
See Also
| Improve this Doc View Source

ConstantValue

Filter value

Declaration
public object ConstantValue { get; }
Property Value
Type Description
Object
See Also
| Improve this Doc View Source

FilterType

Filter type

Declaration
public override FilterType FilterType { get; }
Property Value
Type Description
FilterType Constant
Overrides
| Improve this Doc View Source

Name

Filter parameter name

Declaration
public string Name { get; }
Property Value
Type Description
String
Remarks

No Sql parameter prefix needed

| Improve this Doc View Source

Nullable

Filter null value handling mode

Declaration
public FilterNullable Nullable { get; set; }
Property Value
Type Description
FilterNullable
See Also
| Improve this Doc View Source

TypeId

When implemented in a derived class, gets a unique identifier for this Attribute.

Declaration
public override object TypeId { get; }
Property Value
Type Description
Object

An Object that is a unique identifier for the attribute.
Overrides

Extension Methods