Class GenericDataSourceView<T>

Base class for EPiServer DataSource controls.

Inheritance

System.Object

GenericDataSourceView<T>

Implements

System.Web.UI.IStateManager

Namespace: EPiServer.Web.WebControls

Assembly: EPiServer.dll

Version: 9.12.2

Syntax

public class GenericDataSourceView<T> : DataSourceView, IStateManager where T : class, IDataSourceMethods, IDataSource

Type Parameters

Name	Description
T

Remarks

ViewState will contain an object array "o" with length 4. The elements will serve the different parameter collections o[0] - SelectParameters o[1] - InsertParameters o[2] - UpdateParameters o[3] - DeleteParameters

Constructors

GenericDataSourceView(IDataSource, String)

Initializes a new instance of the GenericDataSourceView<T> class.

Declaration

public GenericDataSourceView(IDataSource dataSource, string viewName)

Parameters

Type	Name	Description
System.Web.UI.IDataSource	dataSource	The data source.
System.String	viewName	Name of the view.

GenericDataSourceView(IDataSource, String, Boolean, Boolean, Boolean)

Initializes a new instance of the GenericDataSourceView<T> class.

Declaration

public GenericDataSourceView(IDataSource dataSource, string viewName, bool canUpdate, bool canDelete, bool canInsert)

Parameters

Type	Name	Description
System.Web.UI.IDataSource	dataSource	The data source.
System.String	viewName	Name of the view.
System.Boolean	canUpdate	if set to `true` update is supported.
System.Boolean	canDelete	if set to `true` delete is supported.
System.Boolean	canInsert	if set to `true` insert is supported.

GenericDataSourceView(IDataSource, String, Boolean, Boolean, Boolean, Boolean, Boolean)

Initializes a new instance of the GenericDataSourceView<T> class.

Declaration

public GenericDataSourceView(IDataSource dataSource, string viewName, bool canUpdate, bool canDelete, bool canInsert, bool canPage, bool canRetrieveTotalCount)

Parameters

Type	Name	Description
System.Web.UI.IDataSource	dataSource	The data source.
System.String	viewName	Name of the view.
System.Boolean	canUpdate	if set to `true` update is supported.
System.Boolean	canDelete	if set to `true` delete is supported.
System.Boolean	canInsert	if set to `true` insert is supported.
System.Boolean	canPage	if set to `true` paging is supported.
System.Boolean	canRetrieveTotalCount	if set to `true` retrieving total count supported.

Properties

CanDelete

Gets a value indicating whether the System.Web.UI.DataSourceView object associated with the current System.Web.UI.DataSourceControl object supports the System.Web.UI.DataSourceView.ExecuteDelete(System.Collections.IDictionary,System.Collections.IDictionary) operation.

Declaration

public override bool CanDelete { get; }

Property Value

Type	Description
System.Boolean

CanInsert

Declaration

public override bool CanInsert { get; }

Property Value

Type	Description
System.Boolean

CanPage

Gets a value indicating whether the System.Web.UI.DataSourceView object associated with the current System.Web.UI.DataSourceControl object supports paging through the data retrieved by the System.Web.UI.DataSourceView.ExecuteSelect(System.Web.UI.DataSourceSelectArguments) method.

Declaration

public override bool CanPage { get; }

Property Value

Type	Description
System.Boolean

CanRetrieveTotalRowCount

Gets a value indicating whether the System.Web.UI.DataSourceView object associated with the current System.Web.UI.DataSourceControl object supports retrieving the total number of data rows, instead of the data.

Declaration

public override bool CanRetrieveTotalRowCount { get; }

Property Value

Type	Description
System.Boolean

CanUpdate

Gets a value indicating whether the System.Web.UI.DataSourceView object associated with the current System.Web.UI.DataSourceControl object supports the System.Web.UI.DataSourceView.ExecuteUpdate(System.Collections.IDictionary,System.Collections.IDictionary,System.Collections.IDictionary) operation.

Declaration

public override bool CanUpdate { get; }

Property Value

Type	Description
System.Boolean

DeleteParameters

Gets the parameters that will be used for delete operations.

Declaration

public ParameterCollection DeleteParameters { get; }

Property Value

Type	Description
System.Web.UI.WebControls.ParameterCollection

InsertParameters

Gets the parameters that will be used for insert operations.

Declaration

public ParameterCollection InsertParameters { get; }

Property Value

Type	Description
System.Web.UI.WebControls.ParameterCollection

SelectParameters

Gets the parameters that will be used for select operations.

Declaration

public ParameterCollection SelectParameters { get; }

Property Value

Type	Description
System.Web.UI.WebControls.ParameterCollection

UpdateParameters

Gets the parameters that will be used for updated operations.

Declaration

public ParameterCollection UpdateParameters { get; }

Property Value

Type	Description
System.Web.UI.WebControls.ParameterCollection

Methods

ExecuteDelete(IDictionary, IDictionary)

Deletes items according to given DataSource implementation

Declaration

protected override int ExecuteDelete(IDictionary keys, IDictionary oldValues)

Parameters

Type	Name	Description
System.Collections.IDictionary	keys	keys
System.Collections.IDictionary	oldValues	old values

Returns

Type	Description
System.Int32	number of deleted items

ExecuteInsert(IDictionary)

Inserts items according to given DataSource implementation

Declaration

protected override int ExecuteInsert(IDictionary values)

Parameters

Type	Name	Description
System.Collections.IDictionary	values	values

Returns

Type	Description
System.Int32	number of inserted items

ExecuteSelect(DataSourceSelectArguments)

Selects items according to given DataSource implementation

Declaration

protected override IEnumerable ExecuteSelect(DataSourceSelectArguments arguments)

Parameters

Type	Name	Description
System.Web.UI.DataSourceSelectArguments	arguments	select arguments

Returns

Type	Description
System.Collections.IEnumerable	Collection of items

ExecuteUpdate(IDictionary, IDictionary, IDictionary)

Updates items according to given DataSource implementation

Declaration

protected override int ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues)

Parameters

Type	Name	Description
System.Collections.IDictionary	keys	keys
System.Collections.IDictionary	values	values
System.Collections.IDictionary	oldValues	oldValues

Returns

Type	Description
System.Int32	number of updated records

LoadViewState(Object)

Loads data from view state.

Declaration

protected virtual void LoadViewState(object savedState)

Parameters

Type	Name	Description
System.Object	savedState	The view state object.

OnDeleted(DataSourceStatusEventArgs)

Raises the Deleted event.

Declaration

protected virtual void OnDeleted(DataSourceStatusEventArgs e)

Parameters

Type	Name	Description
DataSourceStatusEventArgs	e	The DataSourceStatusEventArgs instance containing the event data.

OnDeleting(DataSourceMethodEventArgs)

Raises the Deleting event.

Declaration

protected virtual void OnDeleting(DataSourceMethodEventArgs e)

Parameters

Type	Name	Description
DataSourceMethodEventArgs	e	The DataSourceMethodEventArgs instance containing the event data.

OnEventOccurred(DataSourceStatusEventArgs, Object)

Raises an event notifying that an operation has occurred. The operation is specified by the eventKey which is one of the following.

Declaration

protected virtual void OnEventOccurred(DataSourceStatusEventArgs e, object eventKey)

Parameters

Type	Name	Description
DataSourceStatusEventArgs	e	The DataSourceStatusEventArgs instance containing the event data.
System.Object	eventKey	The event key.

OnEventOccurring(DataSourceMethodEventArgs, Object)

Raises an event notifying that an operation is occuring. The operation is specified by the eventKey which is one of the following.

Declaration

protected virtual void OnEventOccurring(DataSourceMethodEventArgs e, object eventKey)

Parameters

Type	Name	Description
DataSourceMethodEventArgs	e	The DataSourceMethodEventArgs instance containing the event data.
System.Object	eventKey	The event key.

OnInserted(DataSourceStatusEventArgs)

Raises the Inserted event.

Declaration

protected virtual void OnInserted(DataSourceStatusEventArgs e)

Parameters

Type	Name	Description
DataSourceStatusEventArgs	e	The DataSourceStatusEventArgs instance containing the event data.

OnInserting(DataSourceMethodEventArgs)

Raises the Inserting event.

Declaration

protected virtual void OnInserting(DataSourceMethodEventArgs e)

Parameters

Type	Name	Description
DataSourceMethodEventArgs	e	The DataSourceMethodEventArgs instance containing the event data.

OnSelected(DataSourceStatusEventArgs)

Raises the Selected event.

Declaration

protected virtual void OnSelected(DataSourceStatusEventArgs e)

Parameters

Type	Name	Description
DataSourceStatusEventArgs	e	The DataSourceStatusEventArgs instance containing the event data.

OnSelecting(DataSourceMethodEventArgs)

Raises the Selecting event.

Declaration

protected virtual void OnSelecting(DataSourceMethodEventArgs e)

Parameters

Type	Name	Description
DataSourceMethodEventArgs	e	The DataSourceMethodEventArgs instance containing the event data.

OnUpdated(DataSourceStatusEventArgs)

Raises the Updated event.

Declaration

protected virtual void OnUpdated(DataSourceStatusEventArgs e)

Parameters

Type	Name	Description
DataSourceStatusEventArgs	e	The DataSourceStatusEventArgs instance containing the event data.

OnUpdating(DataSourceMethodEventArgs)

Raises the Updating event.

Declaration

protected virtual void OnUpdating(DataSourceMethodEventArgs e)

Parameters

Type	Name	Description
DataSourceMethodEventArgs	e	The DataSourceMethodEventArgs instance containing the event data.

SaveViewState()

Saves changes to the GenericDataSourceView<T> to an System.Object for storing in the associated control's ViewState.

Declaration

protected virtual object SaveViewState()

Returns

Type	Description
System.Object	The System.Object that contains the view state changes.

TrackViewState()

Instructs the GenericDataSourceView<T> to track changes to its view state.

Declaration

protected virtual void TrackViewState()

Events

Deleted

Occurs when a System.Web.UI.DataSourceView.ExecuteDelete(System.Collections.IDictionary,System.Collections.IDictionary) operation has completed.

Declaration

public event DataSourceStatusEventHandler Deleted

Event Type

Type	Description
DataSourceStatusEventHandler

Deleting

Occurs before a System.Web.UI.DataSourceView.ExecuteDelete(System.Collections.IDictionary,System.Collections.IDictionary) operation.

Declaration

public event DataSourceMethodEventHandler Deleting

Event Type

Type	Description
DataSourceMethodEventHandler

Inserted

Occurs when a System.Web.UI.DataSourceView.ExecuteInsert(System.Collections.IDictionary) operation has completed.

Declaration

public event DataSourceStatusEventHandler Inserted

Event Type

Type	Description
DataSourceStatusEventHandler

Inserting

Occurs before a System.Web.UI.DataSourceView.ExecuteInsert(System.Collections.IDictionary) operation.

Declaration

public event DataSourceMethodEventHandler Inserting

Event Type

Type	Description
DataSourceMethodEventHandler

Selected

Occurs when a System.Web.UI.DataSourceView.ExecuteSelect(System.Web.UI.DataSourceSelectArguments) operation has completed.

Declaration

public event DataSourceStatusEventHandler Selected

Event Type

Type	Description
DataSourceStatusEventHandler

Selecting

Occurs before a System.Web.UI.DataSourceView.ExecuteSelect(System.Web.UI.DataSourceSelectArguments) operation.

Declaration

public event DataSourceMethodEventHandler Selecting

Event Type

Type	Description
DataSourceMethodEventHandler

Updated

Occurs when a System.Web.UI.DataSourceView.ExecuteUpdate(System.Collections.IDictionary,System.Collections.IDictionary,System.Collections.IDictionary) operation has completed.

Declaration

public event DataSourceStatusEventHandler Updated

Event Type

Type	Description
DataSourceStatusEventHandler

Updating

Occurs before a System.Web.UI.DataSourceView.ExecuteUpdate(System.Collections.IDictionary,System.Collections.IDictionary,System.Collections.IDictionary) operation.

Declaration

public event DataSourceMethodEventHandler Updating

Event Type

Type	Description
DataSourceMethodEventHandler

Implements

System.Web.UI.IStateManager

Extension Methods

IdentityObjectExtensions.GetIdentity(Object)

IdentityObjectExtensions.SetIdentity(Object, Identity)

PropertyBagObjectsExtensions.ToPropertyBag(Object)

PropertyBagObjectsExtensions.ToPropertyBag(Object, IEnumerable<String>)

RuntimeModelExtensions.GetOriginalType(Object)