Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / AppSettingsExpressionEditor.cs / 1 / AppSettingsExpressionEditor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Configuration; using System.Design; using System.Globalization; ///public class AppSettingsExpressionEditor : ExpressionEditor { // Get the collection of appSettings from config private KeyValueConfigurationCollection GetAppSettings(IServiceProvider serviceProvider){ if (serviceProvider != null) { IWebApplication webApp = (IWebApplication)serviceProvider.GetService(typeof(IWebApplication)); if (webApp != null) { Configuration config = webApp.OpenWebConfiguration(true); if (config != null) { AppSettingsSection settingsSection = config.AppSettings; if (settingsSection!= null) { return settingsSection.Settings; } } } } return null; } public override ExpressionEditorSheet GetExpressionEditorSheet(string expression, IServiceProvider serviceProvider) { return new AppSettingsExpressionEditorSheet(expression, this, serviceProvider); } /// public override object EvaluateExpression(string expression, object parseTimeData, Type propertyType, IServiceProvider serviceProvider) { KeyValueConfigurationCollection settings = GetAppSettings(serviceProvider); if (settings != null) { KeyValueConfigurationElement element = settings[expression]; if (element != null) { return element.Value; } } return null; } private class AppSettingsExpressionEditorSheet : ExpressionEditorSheet { private AppSettingsExpressionEditor _owner; private string _appSetting; public AppSettingsExpressionEditorSheet(string expression, AppSettingsExpressionEditor owner, IServiceProvider serviceProvider) : base(serviceProvider) { _owner = owner; _appSetting = expression; } [DefaultValue("")] [SRDescription(SR.AppSettingExpressionEditor_AppSetting)] [TypeConverter(typeof(AppSettingsTypeConverter))] public string AppSetting { get { return _appSetting; } set { _appSetting = value; } } public override bool IsValid { get { return !String.IsNullOrEmpty(AppSetting); } } public override string GetExpression() { return _appSetting; } private class AppSettingsTypeConverter : TypeConverter { private static readonly string NoAppSetting = "(None)"; public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) { return true; } return base.CanConvertFrom(context, sourceType); } public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value is string) { if (String.Equals((string)value, NoAppSetting, StringComparison.OrdinalIgnoreCase)) { return String.Empty; } return value; } return base.ConvertFrom(context, culture, value); } public override bool CanConvertTo(ITypeDescriptorContext context, Type destType) { if (destType == typeof(string)) { return true; } return base.CanConvertTo(context, destType); } public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (value is string) { if (((string)value).Length == 0) { return NoAppSetting; } return value; } return base.ConvertTo(context, culture, value, destinationType); } public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return false; } public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { if (context != null) { AppSettingsExpressionEditorSheet sheet = (AppSettingsExpressionEditorSheet)context.Instance; AppSettingsExpressionEditor asee = sheet._owner; KeyValueConfigurationCollection appSettings = asee.GetAppSettings(sheet.ServiceProvider); if (appSettings != null) { return (appSettings.Count > 0); } } return base.GetStandardValuesSupported(context); } public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (context != null) { AppSettingsExpressionEditorSheet sheet = (AppSettingsExpressionEditorSheet)context.Instance; AppSettingsExpressionEditor asee = sheet._owner; KeyValueConfigurationCollection appSettings = asee.GetAppSettings(sheet.ServiceProvider); if (appSettings != null) { ArrayList valueList = new ArrayList(appSettings.AllKeys); valueList.Sort(); valueList.Add(String.Empty); return new StandardValuesCollection(valueList); } } return base.GetStandardValues(context); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- WebBrowser.cs
- PassportAuthenticationEventArgs.cs
- ExpandCollapsePattern.cs
- XmlDocumentFragment.cs
- TemplatePartAttribute.cs
- TraceData.cs
- DistributedTransactionPermission.cs
- ResizeGrip.cs
- MethodCallExpression.cs
- SqlMethodAttribute.cs
- Classification.cs
- MsmqIntegrationMessagePool.cs
- TrailingSpaceComparer.cs
- X509Chain.cs
- PinnedBufferMemoryStream.cs
- ButtonBaseDesigner.cs
- WebPartZoneDesigner.cs
- TemplateControl.cs
- SqlDataRecord.cs
- ZoneButton.cs
- AutoGeneratedFieldProperties.cs
- GreenMethods.cs
- UnhandledExceptionEventArgs.cs
- ISAPIWorkerRequest.cs
- Int32CollectionConverter.cs
- AlternateView.cs
- RequiredFieldValidator.cs
- ByteAnimationUsingKeyFrames.cs
- RowParagraph.cs
- FontCollection.cs
- Schema.cs
- ServiceChannelFactory.cs
- DbInsertCommandTree.cs
- PenContexts.cs
- ClientScriptManagerWrapper.cs
- PowerStatus.cs
- RotateTransform3D.cs
- wgx_render.cs
- CookieProtection.cs
- SynchronizationHandlesCodeDomSerializer.cs
- Pointer.cs
- Run.cs
- TraceSection.cs
- Error.cs
- DataGridViewTopLeftHeaderCell.cs
- RelatedCurrencyManager.cs
- ProcessDesigner.cs
- metadatamappinghashervisitor.hashsourcebuilder.cs
- PointAnimationUsingKeyFrames.cs
- PerfService.cs
- DesignTimeDataBinding.cs
- CultureMapper.cs
- HtmlTableRow.cs
- GetPageNumberCompletedEventArgs.cs
- LocalizationParserHooks.cs
- Duration.cs
- CmsUtils.cs
- PolicyManager.cs
- Panel.cs
- PerspectiveCamera.cs
- SAPICategories.cs
- NativeMethods.cs
- TableRowCollection.cs
- ProfileSettingsCollection.cs
- XPathEmptyIterator.cs
- MachineKey.cs
- AppDomainManager.cs
- BoundColumn.cs
- Publisher.cs
- ConfigurationStrings.cs
- Function.cs
- InstanceLockLostException.cs
- GroupBoxAutomationPeer.cs
- SafeIUnknown.cs
- PageAdapter.cs
- ZoneMembershipCondition.cs
- TagMapCollection.cs
- ParameterReplacerVisitor.cs
- SuppressIldasmAttribute.cs
- TableSectionStyle.cs
- CultureTable.cs
- JournalEntry.cs
- DataGridViewImageCell.cs
- _DigestClient.cs
- ProfileModule.cs
- LayoutExceptionEventArgs.cs
- ResourceKey.cs
- FilteredAttributeCollection.cs
- TemplateControlCodeDomTreeGenerator.cs
- HttpListener.cs
- Scene3D.cs
- CapabilitiesAssignment.cs
- DocumentsTrace.cs
- AddDataControlFieldDialog.cs
- webproxy.cs
- Point4DValueSerializer.cs
- PasswordTextNavigator.cs
- oledbmetadatacolumnnames.cs
- ClientConfigurationHost.cs
- HttpCachePolicy.cs