Class DataContext

Provides meta data entry point.

Inheritance

System.Object

DataContext

Implements

System.IDisposable

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: Mediachase.BusinessFoundation.Data

Assembly: Mediachase.BusinessFoundation.Data.dll

Version: 10.8.0

Syntax

public class DataContext : IDisposable

Remarks

You should initialize Current in current thread to start Mediachase Ibn Data.

Constructors

DataContext(String)

Initializes a new instance of the DataContext class.

Declaration

public DataContext(string connectionString)

Parameters

Type	Name	Description
System.String	connectionString	The connection string.

Fields

SystemUser

Defines system user constant.

Declaration

public static readonly object SystemUser

Field Value

Type	Description
System.Object

Properties

Attributes

Gets the attributes.

Declaration

public AttributeCollection Attributes { get; }

Property Value

Type	Description
AttributeCollection	The attributes.

Cache

Gets or sets the cache.

Declaration

public DataContextCache Cache { get; }

Property Value

Type	Description
DataContextCache	The cache.

Current

Gets or sets the current.

Declaration

public static DataContext Current { get; set; }

Property Value

Type	Description
DataContext	The current.

CurrentUserId

Gets or sets the current user id.

Declaration

public object CurrentUserId { get; set; }

Property Value

Type	Description
System.Object	The current user id.

Remarks

DataContext.SystemUser is default value.

CurrentUserTimeZone

Gets or sets the current user time zone.

Declaration

public TimeZone CurrentUserTimeZone { get; set; }

Property Value

Type	Description
System.TimeZone	The current user time zone.

Remarks

System.TimeZone.CurrentTimeZone is default value. You can use Mediachase.BusinessFoundation.Data.UserTimeZone to create custom time zone.

Item[String]

Gets or sets the System.Object with the specified attribute key.

Declaration

public object this[string attributeKey] { get; set; }

Parameters

Type	Name	Description
System.String	attributeKey

Property Value

Type	Description
System.Object

MetaModel

Gets the meta class manager.

Declaration

public virtual MetaClassManager MetaModel { get; }

Property Value

Type	Description
MetaClassManager	The meta class manager.

SqlContext

Gets the SQL context.

Declaration

public SqlContext SqlContext { get; }

Property Value

Type	Description
SqlContext	The SQL context.

Methods

BeginTransaction()

Begins the transaction.

Declaration

public virtual TransactionScope BeginTransaction()

Returns

Type	Description
TransactionScope

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration

public void Dispose()

Dispose(Boolean)

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

FromConfig()

Froms the config.

Declaration

public static DataContext FromConfig()

Returns

Type	Description
DataContext

GetMetaClass(String)

Gets the meta class.

Declaration

public MetaClass GetMetaClass(string metaClassName)

Parameters

Type	Name	Description
System.String	metaClassName	Name of the meta class.

Returns

Type	Description
MetaClass

GetMetaFieldType(String)

Gets the type of the meta field.

Declaration

public MetaFieldType GetMetaFieldType(string metaFieldTypeName)

Parameters

Type	Name	Description
System.String	metaFieldTypeName	Name of the meta field type.

Returns

Type	Description
MetaFieldType

GetMetaView(String)

Gets the meta view.

Declaration

public MetaView GetMetaView(string metaViewName)

Parameters

Type	Name	Description
System.String	metaViewName	Name of the meta view.

Returns

Type	Description
MetaView

GetModuleDataStorage(String)

Gets the module data storage.

Declaration

public ModuleDataStorage GetModuleDataStorage(string moduleName)

Parameters

Type	Name	Description
System.String	moduleName	Name of the module.

Returns

Type	Description
ModuleDataStorage

InitMetaModel()

Inits this instance.

Declaration

protected void InitMetaModel()

Switch(DataContext)

Switches the specified new context.

Declaration

public static DataContextSwitcher Switch(DataContext newContext)

Parameters

Type	Name	Description
DataContext	newContext	The new context.

Returns

Type	Description
DataContextSwitcher

Events

MetaModelLoad

Occurs when meta model is loaded.

Declaration

public static event EventHandler<MetaModelLoadEventArgs> MetaModelLoad

Event Type

Type	Description
System.EventHandler<MetaModelLoadEventArgs>

Implements

System.IDisposable