Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / DataSourceHelper.cs / 1 / DataSourceHelper.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Data; internal sealed class DataSourceHelper { private DataSourceHelper() { } internal static IEnumerable GetResolvedDataSource(object dataSource, string dataMember) { if (dataSource == null) return null; IListSource listSource = dataSource as IListSource; if (listSource != null) { IList memberList = listSource.GetList(); if (listSource.ContainsListCollection == false) { // the returned list is itself the list we need to bind to // NOTE: I am ignoring the DataMember parameter... ideally we might have // thrown an exception, but this would mess up design-time usage // where the user may change the data source from a DataSet to a // DataTable. return (IEnumerable)memberList; } if ((memberList != null) && (memberList is ITypedList)) { ITypedList typedMemberList = (ITypedList)memberList; PropertyDescriptorCollection propDescs = typedMemberList.GetItemProperties(new PropertyDescriptor[0]); if ((propDescs != null) && (propDescs.Count != 0)) { PropertyDescriptor listProperty = null; if (String.IsNullOrEmpty(dataMember)) { listProperty = propDescs[0]; } else { listProperty = propDescs.Find(dataMember, true); } if (listProperty != null) { object listRow = memberList[0]; object list = listProperty.GetValue(listRow); if ((list != null) && (list is IEnumerable)) { return (IEnumerable)list; } } throw new HttpException(SR.GetString(SR.ListSource_Missing_DataMember, dataMember)); } else { throw new HttpException(SR.GetString(SR.ListSource_Without_DataMembers)); } } } if (dataSource is IEnumerable) { return (IEnumerable)dataSource; } return null; } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- XmlDownloadManager.cs
- SecurityRuntime.cs
- CapabilitiesSection.cs
- HttpStaticObjectsCollectionBase.cs
- RegexInterpreter.cs
- XsdDateTime.cs
- SqlStatistics.cs
- SchemaDeclBase.cs
- Queue.cs
- TextDecorationCollection.cs
- ExtensionDataReader.cs
- HtmlEncodedRawTextWriter.cs
- DocumentXmlWriter.cs
- SchemaEntity.cs
- UnionExpr.cs
- ElementProxy.cs
- OracleConnection.cs
- InternalCache.cs
- PersonalizationStateInfoCollection.cs
- MobileUITypeEditor.cs
- CounterCreationData.cs
- ParamArrayAttribute.cs
- DataTransferEventArgs.cs
- ConfigurationManagerHelperFactory.cs
- FirstMatchCodeGroup.cs
- IsolationInterop.cs
- CryptoHelper.cs
- XmlArrayItemAttributes.cs
- MethodAccessException.cs
- BridgeDataRecord.cs
- SqlDataSourceSelectingEventArgs.cs
- RouteCollection.cs
- HtmlTableRow.cs
- APCustomTypeDescriptor.cs
- SoapParser.cs
- ScriptHandlerFactory.cs
- ToolBar.cs
- DataTableTypeConverter.cs
- CharEnumerator.cs
- DeviceFilterDictionary.cs
- GlyphRun.cs
- EdmEntityTypeAttribute.cs
- EntitySetDataBindingList.cs
- SortAction.cs
- ShaderRenderModeValidation.cs
- WindowsProgressbar.cs
- ReadOnlyDictionary.cs
- GenericUriParser.cs
- ReliableChannelListener.cs
- CallbackException.cs
- AnnotationAuthorChangedEventArgs.cs
- DataGridViewSelectedCellsAccessibleObject.cs
- IdentitySection.cs
- KernelTypeValidation.cs
- SlotInfo.cs
- StaticExtensionConverter.cs
- WebPartCancelEventArgs.cs
- StateMachineHistory.cs
- SortedDictionary.cs
- HierarchicalDataBoundControl.cs
- MethodSignatureGenerator.cs
- RelatedView.cs
- JournalEntryStack.cs
- EncoderBestFitFallback.cs
- _ListenerResponseStream.cs
- ZipIOCentralDirectoryBlock.cs
- Vars.cs
- ASCIIEncoding.cs
- ComboBoxItem.cs
- X509Extension.cs
- ContentValidator.cs
- CardSpaceException.cs
- EnlistmentState.cs
- TrackingDataItem.cs
- WebPartConnectionCollection.cs
- SmtpLoginAuthenticationModule.cs
- BasicExpressionVisitor.cs
- ChineseLunisolarCalendar.cs
- HashHelper.cs
- SqlProviderManifest.cs
- _DomainName.cs
- SymDocumentType.cs
- _ShellExpression.cs
- NativeActivity.cs
- ConfigurationManagerInternalFactory.cs
- ToolboxItem.cs
- RightsManagementManager.cs
- Size.cs
- DataTableCollection.cs
- NetMsmqSecurityElement.cs
- ClientCredentialsElement.cs
- SqlDeflator.cs
- TokenFactoryFactory.cs
- ColumnHeaderCollectionEditor.cs
- ListViewSortEventArgs.cs
- SafeBitVector32.cs
- SqlStream.cs
- COM2IDispatchConverter.cs
- OdbcConnectionFactory.cs
- AdornedElementPlaceholder.cs