Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / UI / DataSourceControl.cs / 1 / DataSourceControl.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System.Collections; using System.ComponentModel; using System.Security.Permissions; ////// A DataSourceControl represents a data source that can be used to /// data-bind a DataBoundControl. /// DataSourceControl is an abstract base class that defines the /// interface between a DataBoundControl and its data source. /// The design of DataSourceControl enables creation of a variety of /// data controls with different underlying data sources such /// as SqlDataControl, WebServiceDataControl, XmlDataControl etc. /// The data source is implemented as a control even though it /// has no visual rendering, to allow it to be persisted /// declaratively, and to allow it to participate in state /// management should it choose to. /// In abstract terms a DataSourceControl has an underlying data source. /// This data source may contain one or more lists of data within it. /// Each list is associated with a name and at the bare minimum /// supports enumeration via the IEnumerable interface. A DataBoundControl /// is typically bound to a single list within the DataControl. /// [ Bindable(false), ControlBuilder(typeof(DataSourceControlBuilder)), Designer("System.Web.UI.Design.DataSourceDesigner, " + AssemblyRef.SystemDesign), NonVisualControl() ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public abstract class DataSourceControl : Control, IDataSource, IListSource { private static readonly object EventDataSourceChanged = new object(); private static readonly object EventDataSourceChangedInternal = new object(); [ EditorBrowsable(EditorBrowsableState.Never), ] public override string ClientID { get { return base.ClientID; } } [ EditorBrowsable(EditorBrowsableState.Never), ] public override ControlCollection Controls { get { return base.Controls; } } [ Browsable(false), DefaultValue(false), EditorBrowsable(EditorBrowsableState.Never), ] public override bool EnableTheming { get { return false; } set { throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name)); } } [ Browsable(false), DefaultValue(""), EditorBrowsable(EditorBrowsableState.Never), ] public override string SkinID { get { return String.Empty; } set { throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name)); } } ////// Gets or sets a value that indicates whether a control should be rendered on /// the page. /// [ Browsable(false), DefaultValue(false), EditorBrowsable(EditorBrowsableState.Never), ] public override bool Visible { get { return false; } set { throw new NotSupportedException(SR.GetString(SR.ControlNonVisual, this.GetType().Name)); } } ////// Raised internally by a DataSource when data-related state is /// changed. DataSourceViews attach to this event so that they can /// be notified when the parent data source changes. /// This event is separate from DataSourceChanged because the DataSourceView /// attaches to it and fires its DataSourceViewChanged event. We want that /// to fire before the DataSourceChanged event. /// internal event EventHandler DataSourceChangedInternal { add { Events.AddHandler(EventDataSourceChangedInternal, value); } remove { Events.RemoveHandler(EventDataSourceChangedInternal, value); } } [ EditorBrowsable(EditorBrowsableState.Never), ] public override void ApplyStyleSheetSkin(Page page) { base.ApplyStyleSheetSkin(page); } ////// Overidden to prevent child controls from being added to this control. /// protected override ControlCollection CreateControlCollection() { return new EmptyControlCollection(this); } [ EditorBrowsable(EditorBrowsableState.Never), ] public override Control FindControl(string id) { return base.FindControl(id); } ////// [ EditorBrowsable(EditorBrowsableState.Never), ] public override void Focus() { throw new NotSupportedException(SR.GetString(SR.NoFocusSupport, this.GetType().Name)); } protected abstract DataSourceView GetView(string viewName); protected virtual ICollection GetViewNames() { return null; } [ EditorBrowsable(EditorBrowsableState.Never), ] public override bool HasControls() { return base.HasControls(); } private void OnDataSourceChanged(EventArgs e) { EventHandler handler = (EventHandler)Events[EventDataSourceChanged]; if (handler != null) { handler(this, e); } } private void OnDataSourceChangedInternal(EventArgs e) { EventHandler handler = (EventHandler)Events[EventDataSourceChangedInternal]; if (handler != null) { handler(this, e); } } protected virtual void RaiseDataSourceChangedEvent(EventArgs e) { OnDataSourceChangedInternal(e); OnDataSourceChanged(e); } [ EditorBrowsable(EditorBrowsableState.Never), ] public override void RenderControl(HtmlTextWriter writer) { base.RenderControl(writer); } #region Implementation of IDataSource ////// Raised when the underlying data source has changed. The /// change may be due to a change in the control's properties, /// or a change in the data due to an edit action performed by /// the DataSourceControl. /// event EventHandler IDataSource.DataSourceChanged { add { Events.AddHandler(EventDataSourceChanged, value); } remove { Events.RemoveHandler(EventDataSourceChanged, value); } } ///DataSourceView IDataSource.GetView(string viewName) { return GetView(viewName); } /// ICollection IDataSource.GetViewNames() { return GetViewNames(); } #endregion #region Implementation of IListSource /// bool IListSource.ContainsListCollection { get { if (DesignMode) { return false; } return ListSourceHelper.ContainsListCollection(this); } } /// IList IListSource.GetList() { if (DesignMode) { return null; } return ListSourceHelper.GetList(this); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System.Collections; using System.ComponentModel; using System.Security.Permissions; ////// A DataSourceControl represents a data source that can be used to /// data-bind a DataBoundControl. /// DataSourceControl is an abstract base class that defines the /// interface between a DataBoundControl and its data source. /// The design of DataSourceControl enables creation of a variety of /// data controls with different underlying data sources such /// as SqlDataControl, WebServiceDataControl, XmlDataControl etc. /// The data source is implemented as a control even though it /// has no visual rendering, to allow it to be persisted /// declaratively, and to allow it to participate in state /// management should it choose to. /// In abstract terms a DataSourceControl has an underlying data source. /// This data source may contain one or more lists of data within it. /// Each list is associated with a name and at the bare minimum /// supports enumeration via the IEnumerable interface. A DataBoundControl /// is typically bound to a single list within the DataControl. /// [ Bindable(false), ControlBuilder(typeof(DataSourceControlBuilder)), Designer("System.Web.UI.Design.DataSourceDesigner, " + AssemblyRef.SystemDesign), NonVisualControl() ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public abstract class DataSourceControl : Control, IDataSource, IListSource { private static readonly object EventDataSourceChanged = new object(); private static readonly object EventDataSourceChangedInternal = new object(); [ EditorBrowsable(EditorBrowsableState.Never), ] public override string ClientID { get { return base.ClientID; } } [ EditorBrowsable(EditorBrowsableState.Never), ] public override ControlCollection Controls { get { return base.Controls; } } [ Browsable(false), DefaultValue(false), EditorBrowsable(EditorBrowsableState.Never), ] public override bool EnableTheming { get { return false; } set { throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name)); } } [ Browsable(false), DefaultValue(""), EditorBrowsable(EditorBrowsableState.Never), ] public override string SkinID { get { return String.Empty; } set { throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name)); } } ////// Gets or sets a value that indicates whether a control should be rendered on /// the page. /// [ Browsable(false), DefaultValue(false), EditorBrowsable(EditorBrowsableState.Never), ] public override bool Visible { get { return false; } set { throw new NotSupportedException(SR.GetString(SR.ControlNonVisual, this.GetType().Name)); } } ////// Raised internally by a DataSource when data-related state is /// changed. DataSourceViews attach to this event so that they can /// be notified when the parent data source changes. /// This event is separate from DataSourceChanged because the DataSourceView /// attaches to it and fires its DataSourceViewChanged event. We want that /// to fire before the DataSourceChanged event. /// internal event EventHandler DataSourceChangedInternal { add { Events.AddHandler(EventDataSourceChangedInternal, value); } remove { Events.RemoveHandler(EventDataSourceChangedInternal, value); } } [ EditorBrowsable(EditorBrowsableState.Never), ] public override void ApplyStyleSheetSkin(Page page) { base.ApplyStyleSheetSkin(page); } ////// Overidden to prevent child controls from being added to this control. /// protected override ControlCollection CreateControlCollection() { return new EmptyControlCollection(this); } [ EditorBrowsable(EditorBrowsableState.Never), ] public override Control FindControl(string id) { return base.FindControl(id); } ////// [ EditorBrowsable(EditorBrowsableState.Never), ] public override void Focus() { throw new NotSupportedException(SR.GetString(SR.NoFocusSupport, this.GetType().Name)); } protected abstract DataSourceView GetView(string viewName); protected virtual ICollection GetViewNames() { return null; } [ EditorBrowsable(EditorBrowsableState.Never), ] public override bool HasControls() { return base.HasControls(); } private void OnDataSourceChanged(EventArgs e) { EventHandler handler = (EventHandler)Events[EventDataSourceChanged]; if (handler != null) { handler(this, e); } } private void OnDataSourceChangedInternal(EventArgs e) { EventHandler handler = (EventHandler)Events[EventDataSourceChangedInternal]; if (handler != null) { handler(this, e); } } protected virtual void RaiseDataSourceChangedEvent(EventArgs e) { OnDataSourceChangedInternal(e); OnDataSourceChanged(e); } [ EditorBrowsable(EditorBrowsableState.Never), ] public override void RenderControl(HtmlTextWriter writer) { base.RenderControl(writer); } #region Implementation of IDataSource ////// Raised when the underlying data source has changed. The /// change may be due to a change in the control's properties, /// or a change in the data due to an edit action performed by /// the DataSourceControl. /// event EventHandler IDataSource.DataSourceChanged { add { Events.AddHandler(EventDataSourceChanged, value); } remove { Events.RemoveHandler(EventDataSourceChanged, value); } } ///DataSourceView IDataSource.GetView(string viewName) { return GetView(viewName); } /// ICollection IDataSource.GetViewNames() { return GetViewNames(); } #endregion #region Implementation of IListSource /// bool IListSource.ContainsListCollection { get { if (DesignMode) { return false; } return ListSourceHelper.ContainsListCollection(this); } } /// IList IListSource.GetList() { if (DesignMode) { return null; } return ListSourceHelper.GetList(this); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DesignerResources.cs
- StandardCommands.cs
- Int32.cs
- DataBindingExpressionBuilder.cs
- SqlDataSourceRefreshSchemaForm.cs
- XmlBoundElement.cs
- MainMenu.cs
- OdbcParameterCollection.cs
- RelationalExpressions.cs
- WebPartDisplayModeEventArgs.cs
- ISAPIRuntime.cs
- SimpleWorkerRequest.cs
- XmlAttributeCollection.cs
- InvalidDataException.cs
- MulticastOption.cs
- DmlSqlGenerator.cs
- OdbcTransaction.cs
- SymLanguageType.cs
- PreloadedPackages.cs
- RequestCache.cs
- EntityContainerAssociationSet.cs
- WindowAutomationPeer.cs
- PrintPreviewControl.cs
- BitmapEffectRenderDataResource.cs
- BaseAsyncResult.cs
- XmlLanguage.cs
- AssociationEndMember.cs
- JulianCalendar.cs
- _UriSyntax.cs
- RedistVersionInfo.cs
- WorkflowViewStateService.cs
- Range.cs
- WebException.cs
- _AutoWebProxyScriptWrapper.cs
- FormViewDeleteEventArgs.cs
- TogglePattern.cs
- XmlElementList.cs
- PolicyUtility.cs
- DataGridState.cs
- X500Name.cs
- ExpressionCopier.cs
- Control.cs
- ByteStack.cs
- CheckBoxPopupAdapter.cs
- ParagraphVisual.cs
- TypeConverterMarkupExtension.cs
- AsynchronousChannel.cs
- XNameConverter.cs
- ExpandCollapsePattern.cs
- MethodImplAttribute.cs
- ReaderWriterLock.cs
- CharacterString.cs
- Thickness.cs
- Imaging.cs
- RequestBringIntoViewEventArgs.cs
- XmlFormatReaderGenerator.cs
- UrlAuthFailedErrorFormatter.cs
- TdsParserStateObject.cs
- Type.cs
- EntityDataSourceState.cs
- ServiceOperationUIEditor.cs
- GeneralTransform3DCollection.cs
- Visual3DCollection.cs
- ContainerVisual.cs
- ToolboxService.cs
- Listbox.cs
- ExtensionCollection.cs
- CheckBox.cs
- IntPtr.cs
- TemplateControl.cs
- DashStyle.cs
- HashSetDebugView.cs
- RegexCompilationInfo.cs
- Point4D.cs
- ClientSideQueueItem.cs
- WhitespaceReader.cs
- TableItemPattern.cs
- documentsequencetextpointer.cs
- ValuePattern.cs
- Converter.cs
- SqlConnectionPoolGroupProviderInfo.cs
- ImageDesigner.cs
- DriveInfo.cs
- CachedBitmap.cs
- MultipartContentParser.cs
- RichTextBox.cs
- DSASignatureDeformatter.cs
- ProgressBar.cs
- SqlDataSourceStatusEventArgs.cs
- TCPListener.cs
- TdsEnums.cs
- AuthenticatingEventArgs.cs
- ChangePassword.cs
- BCryptNative.cs
- WebConvert.cs
- AsnEncodedData.cs
- QilInvokeLateBound.cs
- SiteMapNodeCollection.cs
- ServiceProviders.cs
- UnsafeNativeMethods.cs