Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / 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
- ADMembershipUser.cs
- DSACryptoServiceProvider.cs
- ApplicationFileParser.cs
- CharUnicodeInfo.cs
- OdbcEnvironmentHandle.cs
- RemoteX509AsymmetricSecurityKey.cs
- UniformGrid.cs
- JavaScriptSerializer.cs
- ToolStripRenderEventArgs.cs
- Form.cs
- ServiceObjectContainer.cs
- BitmapEffectState.cs
- TypeForwardedToAttribute.cs
- TypePresenter.xaml.cs
- FontSourceCollection.cs
- EventSourceCreationData.cs
- GroupDescription.cs
- CodeDelegateCreateExpression.cs
- ListDictionaryInternal.cs
- WorkflowLayouts.cs
- GridSplitter.cs
- regiisutil.cs
- PeerNodeAddress.cs
- DelimitedListTraceListener.cs
- TextWriterTraceListener.cs
- MethodBuilder.cs
- VectorAnimationUsingKeyFrames.cs
- DataRowExtensions.cs
- TcpAppDomainProtocolHandler.cs
- sqlnorm.cs
- Control.cs
- PathGradientBrush.cs
- wgx_commands.cs
- XmlSchemaInferenceException.cs
- AuthenticationException.cs
- HuffModule.cs
- GridViewRowEventArgs.cs
- DeferredSelectedIndexReference.cs
- DocumentAutomationPeer.cs
- SByteStorage.cs
- EventPrivateKey.cs
- RequestCacheEntry.cs
- ImageSource.cs
- RelatedImageListAttribute.cs
- DataListItemEventArgs.cs
- OdbcDataAdapter.cs
- XmlILOptimizerVisitor.cs
- CodeDOMUtility.cs
- DataGridViewControlCollection.cs
- TextPointerBase.cs
- ImageButton.cs
- SourceInterpreter.cs
- NotifyIcon.cs
- StackSpiller.Generated.cs
- ItemAutomationPeer.cs
- FactoryMaker.cs
- ValueOfAction.cs
- ErrorInfoXmlDocument.cs
- IdentityManager.cs
- ToolStripCodeDomSerializer.cs
- ImageBrush.cs
- StaticDataManager.cs
- WmlValidatorAdapter.cs
- InitiatorSessionSymmetricMessageSecurityProtocol.cs
- HttpListenerElement.cs
- CodeAttributeArgumentCollection.cs
- BaseDataList.cs
- ActivityExecutionWorkItem.cs
- _OSSOCK.cs
- PointCollection.cs
- TreeViewImageIndexConverter.cs
- FloaterBaseParaClient.cs
- bidPrivateBase.cs
- XmlMtomWriter.cs
- StringCollection.cs
- SqlDataReader.cs
- SettingsProperty.cs
- QueueException.cs
- HttpHandlersSection.cs
- WindowsHyperlink.cs
- PassportAuthenticationModule.cs
- XsltInput.cs
- ObjectContextServiceProvider.cs
- WebPartHeaderCloseVerb.cs
- HitTestWithPointDrawingContextWalker.cs
- ProbeRequestResponseAsyncResult.cs
- ColumnTypeConverter.cs
- SettingsBase.cs
- Compiler.cs
- ISCIIEncoding.cs
- BuildManagerHost.cs
- Context.cs
- HTTPNotFoundHandler.cs
- DataGridViewHitTestInfo.cs
- Int32CollectionValueSerializer.cs
- MultipartContentParser.cs
- XmlNode.cs
- StorageAssociationTypeMapping.cs
- HttpValueCollection.cs
- SchemaTableOptionalColumn.cs