DbExpressionBuilder.Constant Method
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Creates a new DbConstantExpression.
| Constant(TypeUsage, Object) |
Creates a new DbConstantExpression of the specified primitive type with the given constant value. |
| Constant(Object) |
Creates a new DbConstantExpression with the given constant value. |
Creates a new DbConstantExpression of the specified primitive type with the given constant value.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbConstantExpression ^ Constant(System::Data::Metadata::Edm::TypeUsage ^ constantType, System::Object ^ value);public static System.Data.Common.CommandTrees.DbConstantExpression Constant(this System.Data.Metadata.Edm.TypeUsage constantType, object value);static member Constant : System.Data.Metadata.Edm.TypeUsage * obj -> System.Data.Common.CommandTrees.DbConstantExpression<Extension()>
Public Function Constant (constantType As TypeUsage, value As Object) As DbConstantExpressionParameters
- constantType
- TypeUsage
The type of the constant value.
- value
- Object
The constant value to represent.
Returns
A new DbConstantExpression with the given value and a result type of constantType.
Exceptions
value or constantType is null.
value is not an instance of a valid constant type, constantType does not represent a primitive type, or value is of a different primitive type than that represented by constantType.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Creates a new DbConstantExpression with the given constant value.
public:
static System::Data::Common::CommandTrees::DbConstantExpression ^ Constant(System::Object ^ value);public static System.Data.Common.CommandTrees.DbConstantExpression Constant(object value);static member Constant : obj -> System.Data.Common.CommandTrees.DbConstantExpressionPublic Function Constant (value As Object) As DbConstantExpressionParameters
- value
- Object
The constant value to represent.
Returns
A new DbConstantExpression with the given value.
Exceptions
value is null.
value is not an instance of a valid constant type.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
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