ColumnModification Class
Definition
Important
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Implementation of IColumnModification interface.
This type is typically used by database providers; it is generally not used in application code.
public class ColumnModification
public class ColumnModification : Microsoft.EntityFrameworkCore.Update.IColumnModification
type ColumnModification = class
type ColumnModification = class
interface IColumnModification
Public Class ColumnModification
Public Class ColumnModification
Implements IColumnModification
- Inheritance
-
ColumnModification
- Implements
Remarks
Represents an update, insert, or delete operation for a single column. IReadOnlyModificationCommand contain lists of IColumnModification.
See Implementation of database providers and extensions for more information and examples.
Constructors
Properties
Column |
The column. |
ColumnName |
The name of the column. |
ColumnType |
The database type of the column. |
Entry |
The IUpdateEntry that represents the entity that is being modified. |
IsConcurrencyToken |
Obsolete.
Indicates whether the column is concurrency token. |
IsCondition |
Indicates whether the column is used in the |
IsKey |
Indicates whether the column is part of a primary or alternate key. |
IsNullable |
A value indicating whether the column could contain a null value. |
IsRead |
Indicates whether a value must be read from the database for the column. |
IsWrite |
Indicates whether a value must be written to the database for the column. |
JsonPath |
In case of JSON column modification, the JSON path leading to the JSON element that needs to be updated. |
OriginalParameterName |
The parameter name to use for the original value parameter (UseOriginalValueParameter), if needed. |
OriginalValue |
The original value of the property mapped to this column. |
ParameterName |
The parameter name to use for the current value parameter (UseCurrentValueParameter), if needed. |
Property |
The property that maps to the column. |
TypeMapping |
The relational type mapping for the column. |
UseCurrentValue |
Indicates whether the current value of the property should be used. |
UseCurrentValueParameter |
Indicates whether the current value of the property must be passed as a parameter to the SQL. |
UseOriginalValue |
Indicates whether the original value of the property should be used. |
UseOriginalValueParameter |
Indicates whether the original value of the property must be passed as a parameter to the SQL. |
UseParameter |
Indicates whether the value of the property must be passed as a parameter to the SQL as opposed to being inlined. |
Value |
Gets or sets the current value of the property mapped to this column. |
Methods
AddSharedColumnModification(ColumnModification) |
Adds a modification affecting the same database value. |
AddSharedColumnModification(IColumnModification) |
Adds a modification affecting the same database value. |
GetCurrentProviderValue(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
GetCurrentValue(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
GetOriginalProviderValue(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
GetOriginalValue(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
IsModified(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
IsStoreGenerated(IUpdateEntry, IProperty) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
ResetParameterNames() |
Resets parameter names, so they can be regenerated if the command needs to be re-added to a new batch. |
SetStoreGeneratedValue(IUpdateEntry, IProperty, Object) |
This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use it directly in your code with extreme caution and knowing that doing so can result in application failures when updating to a new Entity Framework Core release. |
Applies to
Entity Framework