Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / DataSourceHelper.cs / 1305376 / 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; } } } // 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
- XmlSchemaIdentityConstraint.cs
- SizeChangedEventArgs.cs
- _ConnectOverlappedAsyncResult.cs
- EnvelopedSignatureTransform.cs
- ReferentialConstraintRoleElement.cs
- TableAutomationPeer.cs
- AppearanceEditorPart.cs
- ISFClipboardData.cs
- OleDbDataAdapter.cs
- AttachmentService.cs
- XmlSchemaAny.cs
- TextEditorLists.cs
- MapPathBasedVirtualPathProvider.cs
- DelegateBodyWriter.cs
- BindingSource.cs
- XmlSchemaSimpleTypeUnion.cs
- DataRecord.cs
- ParentQuery.cs
- ProcessRequestArgs.cs
- DbQueryCommandTree.cs
- WebReference.cs
- OleDbDataReader.cs
- UIElementCollection.cs
- GroupItem.cs
- SR.cs
- VisualStyleElement.cs
- PeerEndPoint.cs
- WmlTextViewAdapter.cs
- CurrencyManager.cs
- MDIWindowDialog.cs
- TextShapeableCharacters.cs
- PrintPreviewControl.cs
- RSAPKCS1SignatureDeformatter.cs
- Certificate.cs
- SafePEFileHandle.cs
- HttpCookie.cs
- WebEventTraceProvider.cs
- SafeNativeMethods.cs
- ConstrainedDataObject.cs
- SortExpressionBuilder.cs
- DesignTimeData.cs
- FormViewInsertedEventArgs.cs
- ApplicationSecurityInfo.cs
- SqlParameter.cs
- OleDragDropHandler.cs
- DocumentScope.cs
- ScriptRef.cs
- MembershipSection.cs
- ColumnMap.cs
- DataMemberConverter.cs
- AccessDataSource.cs
- DesignerAttribute.cs
- VisualTransition.cs
- ParserStack.cs
- Effect.cs
- AppLevelCompilationSectionCache.cs
- OptionalRstParameters.cs
- TypeElement.cs
- WebPartsPersonalization.cs
- AccessorTable.cs
- CurrencyManager.cs
- PackWebRequestFactory.cs
- TextOnlyOutput.cs
- StylusTip.cs
- ObjectQueryProvider.cs
- MailWebEventProvider.cs
- CompilationUtil.cs
- MultiTrigger.cs
- sqlpipe.cs
- XmlQualifiedNameTest.cs
- ParseChildrenAsPropertiesAttribute.cs
- ImmComposition.cs
- RichTextBoxDesigner.cs
- mediaclock.cs
- WinEventTracker.cs
- MailMessage.cs
- PersonalizationState.cs
- SqlFileStream.cs
- FrugalList.cs
- XPathAxisIterator.cs
- NavigationPropertyEmitter.cs
- ListViewGroup.cs
- TextChangedEventArgs.cs
- PassportAuthentication.cs
- ConfigurationStrings.cs
- ObjectDataSource.cs
- WebRequestModulesSection.cs
- Cursor.cs
- RegexTree.cs
- RecordBuilder.cs
- ProxyWebPart.cs
- KnownBoxes.cs
- _SecureChannel.cs
- XslException.cs
- DocumentPageHost.cs
- TypeUnloadedException.cs
- BaseDataBoundControl.cs
- NavigationPropertySingletonExpression.cs
- FormViewRow.cs
- SemanticResolver.cs