Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / ListControlDesigner.cs / 1 / ListControlDesigner.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design.WebControls { using System; using System.Design; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Diagnostics; using System.IO; using System.Data; using System.Web.UI; using System.Web.UI.Design; using System.Web.UI.Design.Util; using System.Web.UI.WebControls; using System.Windows.Forms.Design; using DialogResult = System.Windows.Forms.DialogResult; using AttributeCollection = System.ComponentModel.AttributeCollection; using DataBinding = System.Web.UI.DataBinding; ////// /// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] [SupportsPreviewControl(true)] public class ListControlDesigner : DataBoundControlDesigner { ////// This is the base class for all ////// designers. /// /// /// public ListControlDesigner() { } ////// Initializes a new instance of ////// . /// /// /// Adds designer actions to the ActionLists collection. /// public override DesignerActionListCollection ActionLists { get { DesignerActionListCollection actionLists = new DesignerActionListCollection(); actionLists.AddRange(base.ActionLists); actionLists.Add(new ListControlActionList(this, DataSourceDesigner)); return actionLists; } } ////// /// public string DataValueField { get { return ((ListControl)Component).DataValueField; } set { ((ListControl)Component).DataValueField = value; } } ////// /// Retrieves the HTML to be used for the design time representation of the control runtime. /// public string DataTextField { get { return ((ListControl)Component).DataTextField; } set { ((ListControl)Component).DataTextField = value; } } ////// /// Used to determine whether the control should render its default action lists, /// containing a DataSourceID dropdown and related tasks. /// protected override bool UseDataSourcePickerActionList { get { return false; } } internal void ConnectToDataSourceAction() { InvokeTransactedChange(Component, new TransactedChangeCallback(ConnectToDataSourceCallback), null, SR.GetString(SR.ListControlDesigner_ConnectToDataSource)); } private bool ConnectToDataSourceCallback(object context) { ListControlConnectToDataSourceDialog dialog = new ListControlConnectToDataSourceDialog(this); DialogResult result = UIServiceHelper.ShowDialog(Component.Site, dialog); return (result == DialogResult.OK); } ////// /// DataBinds the given control to get design time rendering /// protected override void DataBind(BaseDataBoundControl dataBoundControl) { // We don't need to databind here because we just added items to the items collection return; } ////// Starts collection editor for List Items /// internal void EditItems() { PropertyDescriptor descriptor = TypeDescriptor.GetProperties(Component)["Items"]; Debug.Assert(descriptor != null, "Expected to find Items property on ListControl"); InvokeTransactedChange(Component, new TransactedChangeCallback(EditItemsCallback), descriptor, SR.GetString(SR.ListControlDesigner_EditItems), descriptor); } ////// Transacted callback to invoke the Edit Items dialog. /// private bool EditItemsCallback(object context) { IDesignerHost designerHost = (IDesignerHost)GetService(typeof(IDesignerHost)); Debug.Assert(designerHost != null); PropertyDescriptor descriptor = (PropertyDescriptor)context; ListItemsCollectionEditor editor = new ListItemsCollectionEditor(typeof(ListItemCollection)); editor.EditValue(new TypeDescriptorContext(designerHost, descriptor, Component), new WindowsFormsEditorServiceHelper(this), descriptor.GetValue(Component)); return true; } ////// /// public override string GetDesignTimeHtml() { try { ListControl listControl = (ListControl)ViewControl; ListItemCollection items = listControl.Items; bool isDataBound = IsDataBound(); if (items.Count == 0 || isDataBound) { if (isDataBound) { items.Clear(); items.Add(SR.GetString(SR.Sample_Databound_Text)); } else { items.Add(SR.GetString(SR.Sample_Unbound_Text)); } } return base.GetDesignTimeHtml(); } catch (Exception e) { return GetErrorDesignTimeHtml(e); } } ///Gets the HTML to be used for the design time representation of the control runtime. ////// public IEnumerable GetResolvedSelectedDataSource() { return ((IDataSourceProvider)this).GetResolvedSelectedDataSource(); } ////// public object GetSelectedDataSource() { return ((IDataSourceProvider)this).GetSelectedDataSource(); } ////// /// public override void Initialize(IComponent component) { VerifyInitializeArgument(component, typeof(ListControl)); base.Initialize(component); } ////// Initializes the component for design. /// ////// /// Return true if the control is databound. /// private bool IsDataBound() { DataBinding dataSourceBinding = DataBindings["DataSource"]; return (dataSourceBinding != null || DataSourceID.Length > 0); } ////// /// This method is called when the data source the control is /// connected to changes. Override this method to perform any /// additional actions that your designer requires. Make sure to call /// the base implementation as well. /// This method exists because it shipped in V1. Removing it creates a breaking change. /// Then call the base class' implementation. /// public virtual void OnDataSourceChanged() { // Call the base protected implementation to inherit the default behavior // of BaseDataBoundControlDesigner. base.OnDataSourceChanged(true); } ////// Called by data bound control designers to raise the data source /// changed event so that listeners can be notified. /// protected override void OnDataSourceChanged(bool forceUpdateView) { // Call the public OnDataSourceChanged method without parameters introduced in this class, // which exists for back-compat. This method is new in V2. // Derived classes overrode OnDataSourceChanged(), so make sure that gets called. this.OnDataSourceChanged(); } ////// /// protected override void PreFilterProperties(IDictionary properties) { base.PreFilterProperties(properties); PropertyDescriptor prop; Attribute[] fieldPropAttrs = new Attribute[] { new TypeConverterAttribute(typeof(DataFieldConverter)) }; prop = (PropertyDescriptor)properties["DataTextField"]; Debug.Assert(prop != null); prop = TypeDescriptor.CreateProperty(this.GetType(), prop, fieldPropAttrs); properties["DataTextField"] = prop; prop = (PropertyDescriptor)properties["DataValueField"]; Debug.Assert(prop != null); prop = TypeDescriptor.CreateProperty(this.GetType(), prop, fieldPropAttrs); properties["DataValueField"] = prop; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved./// Filters the properties to replace the runtime DataSource property /// descriptor with the designer's. /// ///
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- BoundsDrawingContextWalker.cs
- ObservableDictionary.cs
- HostedTcpTransportManager.cs
- LifetimeServices.cs
- NavigationEventArgs.cs
- CatalogUtil.cs
- ResourceDisplayNameAttribute.cs
- SQLDecimal.cs
- UInt16.cs
- HtmlInputControl.cs
- WebConfigurationManager.cs
- AsyncWaitHandle.cs
- HttpHandlerAction.cs
- WebPartUtil.cs
- ResourceManager.cs
- ValueTable.cs
- Constant.cs
- FixedTextPointer.cs
- XmlNodeComparer.cs
- XmlSchemaException.cs
- IgnoreSection.cs
- FlagsAttribute.cs
- NullableBoolConverter.cs
- XmlLangPropertyAttribute.cs
- ToolStripSplitButton.cs
- LinkConverter.cs
- MsmqIntegrationBindingCollectionElement.cs
- AnonymousIdentificationSection.cs
- RijndaelManaged.cs
- InspectionWorker.cs
- RadioButtonFlatAdapter.cs
- _LocalDataStore.cs
- SvcMapFileLoader.cs
- TraceListeners.cs
- XmlExtensionFunction.cs
- dtdvalidator.cs
- SqlNotificationRequest.cs
- FixedPosition.cs
- PackagePart.cs
- DrawingBrush.cs
- MenuItemBinding.cs
- ListViewInsertEventArgs.cs
- OpCodes.cs
- ObjectDataSourceSelectingEventArgs.cs
- WebServiceData.cs
- CfgParser.cs
- XpsFixedDocumentSequenceReaderWriter.cs
- NamedPipeTransportSecurityElement.cs
- TimeSpan.cs
- _IPv4Address.cs
- LabelLiteral.cs
- SinglePhaseEnlistment.cs
- ConstNode.cs
- TableMethodGenerator.cs
- XmlSchemaGroupRef.cs
- DataGridViewToolTip.cs
- IPGlobalProperties.cs
- ImpersonationContext.cs
- CommonRemoteMemoryBlock.cs
- RIPEMD160Managed.cs
- PersonalizationDictionary.cs
- DBDataPermission.cs
- WebContext.cs
- HttpResponse.cs
- HighContrastHelper.cs
- ContourSegment.cs
- IPipelineRuntime.cs
- TemplateParser.cs
- TemplateLookupAction.cs
- LinkArea.cs
- OdbcConnectionOpen.cs
- PageBreakRecord.cs
- AsyncOperationContext.cs
- WorkItem.cs
- BrowserDefinition.cs
- ClientEventManager.cs
- MarginCollapsingState.cs
- XmlSerializationWriter.cs
- CodeLabeledStatement.cs
- ClientConfigurationSystem.cs
- EventToken.cs
- WebPageTraceListener.cs
- Condition.cs
- EntityDataSourceView.cs
- CancellationTokenRegistration.cs
- CommonDialog.cs
- BufferModesCollection.cs
- BitmapMetadata.cs
- NegationPusher.cs
- VisualTreeUtils.cs
- WebReferencesBuildProvider.cs
- XmlComplianceUtil.cs
- PropertyMapper.cs
- QueryOperationResponseOfT.cs
- InvalidWMPVersionException.cs
- ThicknessKeyFrameCollection.cs
- Stack.cs
- BinaryObjectReader.cs
- WebZone.cs
- TextEmbeddedObject.cs