Parameter Name Prefix Attribute Class
This attribute is used to define a common stored procedure parameter name prefix that will be used
for all stored procedures called by the data context extension methods. It should be applied to the
data context class.
Definition
Namespace: EWSoftware.EntityFramework.DataAnnotations
Assembly: EWSoftware.EntityFramework (in EWSoftware.EntityFramework.dll) Version: 2025.11.12.0
Assembly: EWSoftware.EntityFramework (in EWSoftware.EntityFramework.dll) Version: 2025.11.12.0
C#
public sealed class ParameterNamePrefixAttribute : AttributeVB
Public NotInheritable Class ParameterNamePrefixAttribute
Inherits AttributeC++
public ref class ParameterNamePrefixAttribute sealed : public AttributeF#
[<SealedAttribute>]
type ParameterNamePrefixAttribute =
class
inherit Attribute
endRemarks
As an example, if set to "param" and an entity property name is AccountKey, the
stored procedure parameter name will be set to @paramAccountKey. If not defined on a data context
the parameter will be named after the property (@AccountKey in the preceding example).
Example
C#
[ParameterNamePrefix("param")]
public sealed class DemoDatabaseDataContext : DbContext
{
... Data context definition ...
}Constructors
| ParameterNamePrefixAttribute | Initialize a new instance of the attribute using the given parameter name prefix |
Properties
| Prefix | This read-only property returns the parameter name prefix that will be applied to all stored procedure parameters. |
| TypeId | When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute) |
Methods
| Equals | Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute) |
| GetHashCode | Returns the hash code for this instance. (Inherited from Attribute) |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| IsDefaultAttribute | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute) |
| Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute) |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
Extension Methods
| ToNullableT |
This is used to convert objects to null values if they are equal to null,
DBNull.Value, or the default value for the given type.
(Defined by DatabaseExtensions) |
| ToStringOrNull |
This is used to convert an object to a string and return either the string value if not empty, or
null if it is an empty string.
(Defined by DatabaseExtensions) |