Class EntityColumnValue

The value of the entity column.

Inheritance
System.Object
EntityColumnValue
Implements
System.ICloneable
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Terrasoft.Core.Entities
Assembly: Terrasoft.Core.dll
Syntax
public class EntityColumnValue : ICloneable

Constructors

EntityColumnValue(EntityColumnValue)

Initializes a new EntityColumnValue instance that is a clone of the specified value.

Declaration
public EntityColumnValue(EntityColumnValue source)
Parameters
Type Name Description
EntityColumnValue source

The entity column value whose clone is being created.

EntityColumnValue(UserConnection)

Initializes a new EntityColumnValue instance, using the specified user connection.

Declaration
public EntityColumnValue(UserConnection userConnection)
Parameters
Type Name Description
UserConnection userConnection

User connection.

Properties

Column

The schema column that corresponds to the current value of the entity column.

Declaration
public EntitySchemaColumn Column { get; set; }
Property Value
Type Description
EntitySchemaColumn

IsChanged

Indicates whether the value has been changed.

Declaration
public bool IsChanged { get; set; }
Property Value
Type Description
System.Boolean

IsLoaded

Determines whether the value is loaded.

Declaration
public bool IsLoaded { get; set; }
Property Value
Type Description
System.Boolean

IsVirtual

Indicates whether the value is virtual and will not be saved in the database.

Declaration
public bool IsVirtual { get; set; }
Property Value
Type Description
System.Boolean

LocalizableValue

Declaration
public LocalizableString LocalizableValue { get; }
Property Value
Type Description
LocalizableString

Name

The name of the entity column value.

Declaration
public string Name { get; set; }
Property Value
Type Description
System.String

OldValue

The previous value.

Declaration
public object OldValue { get; set; }
Property Value
Type Description
System.Object

StreamBytes

The stored value as a System.Byte array for the column of the binary type.

Declaration
public byte[] StreamBytes { get; }
Property Value
Type Description
System.Byte[]

UserConnection

User connection.

Declaration
public UserConnection UserConnection { get; set; }
Property Value
Type Description
UserConnection

Value

The stored value.

Declaration
public object Value { get; set; }
Property Value
Type Description
System.Object
Exceptions
Type Condition
InvalidObjectStateException

If the column value is not loaded.

Methods

ClearValue()

Clears column values.

Declaration
public void ClearValue()

Clone()

Creates a clone of the current value of the entity column.

Declaration
public object Clone()
Returns
Type Description
System.Object

A clone of the current value of the entity column.

IsStreamBytesEquals(Byte[])

Declaration
public bool IsStreamBytesEquals(byte[] value)
Parameters
Type Name Description
System.Byte[] value
Returns
Type Description
System.Boolean

IsValueEquals(Object)

Declaration
public bool IsValueEquals(object value)
Parameters
Type Name Description
System.Object value
Returns
Type Description
System.Boolean

LoadValue(IDataReader, Int32, Int32)

Loads the value from the passed-in System.Data.IDataReader instance.

Declaration
public void LoadValue(IDataReader dataReader, int fieldIndex, int packageSize)
Parameters
Type Name Description
System.Data.IDataReader dataReader

The System.Data.IDataReader instance from which the value is loaded.
System.Int32 fieldIndex

Index of the field that will be loaded in the System.Data.IDataReader.
System.Int32 packageSize

The packet size.

LoadValue(Object)

Loads the passed-in value of the System.Object type.

Declaration
public void LoadValue(object value)
Parameters
Type Name Description
System.Object value

The value of the System.Object type that is being loaded.

ResetOldValue()

The current value of the entity column overwrites the old value.

Declaration
public void ResetOldValue()

ResetValue()

Reverts changes to the previous value of the entity column.

Declaration
public void ResetValue()

Validate(EntityValidationMessageCollection)

Verifies that the column value is correct.

Declaration
public bool Validate(EntityValidationMessageCollection validationMessages)
Parameters
Type Name Description
EntityValidationMessageCollection validationMessages

Collection of messages about verification of the column value.
Returns
Type Description
System.Boolean

true if the column value is valid; otherwise – false.

Implements

System.ICloneable

Extension Methods