Code:
/ DotNET / DotNET / 8.0 / 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
- IteratorDescriptor.cs
- ListBindingConverter.cs
- ConnectionPoint.cs
- PackUriHelper.cs
- DataSet.cs
- Socket.cs
- TextBoxBase.cs
- NominalTypeEliminator.cs
- CounterSample.cs
- serverconfig.cs
- RuntimeWrappedException.cs
- WmlImageAdapter.cs
- ZoneButton.cs
- ConfigurationValidatorBase.cs
- DSASignatureFormatter.cs
- AmbientLight.cs
- WebPartTransformerAttribute.cs
- PrivilegeNotHeldException.cs
- RetrieveVirtualItemEventArgs.cs
- DefaultPerformanceCounters.cs
- LogEntrySerializer.cs
- HasRunnableWorkflowEvent.cs
- GridViewRowPresenterBase.cs
- PeerToPeerException.cs
- TransformedBitmap.cs
- OAVariantLib.cs
- MemoryFailPoint.cs
- BamlLocalizableResource.cs
- DropSource.cs
- MgmtConfigurationRecord.cs
- NestPullup.cs
- UnsafeNativeMethods.cs
- ScopedMessagePartSpecification.cs
- TimeoutValidationAttribute.cs
- IncrementalHitTester.cs
- InternalBase.cs
- StrongNamePublicKeyBlob.cs
- ResourceReferenceExpressionConverter.cs
- ClientData.cs
- StreamAsIStream.cs
- ForeignConstraint.cs
- HtmlInputRadioButton.cs
- GenerateTemporaryAssemblyTask.cs
- PackageController.cs
- ColorInterpolationModeValidation.cs
- Int32Rect.cs
- ScriptControlManager.cs
- WindowsMenu.cs
- ToolStrip.cs
- SchemaNamespaceManager.cs
- ObjectDataSourceSelectingEventArgs.cs
- RoutedPropertyChangedEventArgs.cs
- SolidColorBrush.cs
- WorkItem.cs
- HttpBindingExtension.cs
- FontStretchConverter.cs
- Comparer.cs
- BoundField.cs
- LocalizabilityAttribute.cs
- CustomErrorCollection.cs
- BackEase.cs
- GridViewCommandEventArgs.cs
- IisTraceListener.cs
- UserValidatedEventArgs.cs
- References.cs
- System.Data_BID.cs
- CapiSafeHandles.cs
- TcpProcessProtocolHandler.cs
- VectorCollectionConverter.cs
- ToolStripContainerActionList.cs
- DataGridGeneralPage.cs
- CodeDirectionExpression.cs
- GridEntry.cs
- SqlUDTStorage.cs
- PackagingUtilities.cs
- DeclaredTypeValidatorAttribute.cs
- MouseActionConverter.cs
- XmlDocumentSchema.cs
- IIS7UserPrincipal.cs
- NameTable.cs
- SuppressMessageAttribute.cs
- NameValueSectionHandler.cs
- HMACSHA256.cs
- SessionPageStatePersister.cs
- DesignOnlyAttribute.cs
- Odbc32.cs
- DocumentEventArgs.cs
- SponsorHelper.cs
- FontCacheUtil.cs
- DataServices.cs
- QueryAsyncResult.cs
- UpDownEvent.cs
- WinEventTracker.cs
- PlatformNotSupportedException.cs
- FloaterParaClient.cs
- EntityFrameworkVersions.cs
- BitmapSizeOptions.cs
- ISAPIRuntime.cs
- ReferentialConstraint.cs
- _SSPISessionCache.cs