Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / TreeViewImageKeyConverter.cs / 1305376 / TreeViewImageKeyConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Windows.Forms { using Microsoft.Win32; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Collections.Specialized; ////// /// ImageIndexConverter is a class that can be used to convert /// image index values one data type to another. /// public class TreeViewImageKeyConverter : ImageKeyConverter { ////// /// Converts the given object to another type. The most common types to convert /// are to and from a string object. The default implementation will make a call /// to ToString on the object if the object is valid and if the destination /// type is string. If this cannot convert to the desitnation type, this will /// throw a NotSupportedException. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(string) && (value == null)) { return SR.GetString(SR.toStringDefault); } else { string strValue = value as string; if (strValue != null && (strValue.Length == 0)) { return SR.GetString(SR.toStringDefault); } } return base.ConvertTo(context, culture, value, destinationType); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.Windows.Forms { using Microsoft.Win32; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Collections.Specialized; ////// /// ImageIndexConverter is a class that can be used to convert /// image index values one data type to another. /// public class TreeViewImageKeyConverter : ImageKeyConverter { ////// /// Converts the given object to another type. The most common types to convert /// are to and from a string object. The default implementation will make a call /// to ToString on the object if the object is valid and if the destination /// type is string. If this cannot convert to the desitnation type, this will /// throw a NotSupportedException. /// public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } if (destinationType == typeof(string) && (value == null)) { return SR.GetString(SR.toStringDefault); } else { string strValue = value as string; if (strValue != null && (strValue.Length == 0)) { return SR.GetString(SR.toStringDefault); } } return base.ConvertTo(context, culture, value, destinationType); } } } // 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
- State.cs
- SchemaNotation.cs
- DataPagerFieldItem.cs
- XmlLoader.cs
- HttpClientCertificate.cs
- SafeNativeMethodsOther.cs
- DispatcherTimer.cs
- ComponentChangingEvent.cs
- DependencyPropertyKind.cs
- OptimizedTemplateContentHelper.cs
- CollectionChange.cs
- QuotedPrintableStream.cs
- ReservationCollection.cs
- IItemContainerGenerator.cs
- Win32MouseDevice.cs
- TransactionBridgeSection.cs
- SQLBinary.cs
- ContentHostHelper.cs
- KeyBinding.cs
- ErrorHandler.cs
- SQLByteStorage.cs
- SByteStorage.cs
- PartManifestEntry.cs
- DataGridTableCollection.cs
- PersonalizationProviderCollection.cs
- compensatingcollection.cs
- Parser.cs
- AffineTransform3D.cs
- StylusButton.cs
- ContractBase.cs
- CustomAttributeFormatException.cs
- RoleGroup.cs
- VirtualDirectoryMapping.cs
- LinqDataSourceDisposeEventArgs.cs
- SQLDecimal.cs
- PropertyValueChangedEvent.cs
- MobileRedirect.cs
- SqlError.cs
- ToolStripControlHost.cs
- Substitution.cs
- StatusBar.cs
- TextHidden.cs
- EntityObject.cs
- DownloadProgressEventArgs.cs
- Pair.cs
- SqlDataRecord.cs
- RepeatButton.cs
- PeerName.cs
- NamespaceImport.cs
- _NetworkingPerfCounters.cs
- WebPartTransformerAttribute.cs
- SamlDelegatingWriter.cs
- TripleDES.cs
- BooleanConverter.cs
- KeyedCollection.cs
- XpsSerializerFactory.cs
- CompModSwitches.cs
- DbQueryCommandTree.cs
- XmlAnyElementAttributes.cs
- _ListenerResponseStream.cs
- HtmlInputSubmit.cs
- PageThemeBuildProvider.cs
- SynchronizationHandlesCodeDomSerializer.cs
- EntityRecordInfo.cs
- UriScheme.cs
- Mapping.cs
- XmlSchemaRedefine.cs
- ConfigurationConverterBase.cs
- PasswordRecoveryDesigner.cs
- InheritedPropertyChangedEventArgs.cs
- ResourceDictionaryCollection.cs
- XPathException.cs
- TriggerActionCollection.cs
- DateTimeConverter2.cs
- DiagnosticsElement.cs
- ServiceDeploymentInfo.cs
- DataGridViewCellStyleChangedEventArgs.cs
- HtmlTableCellCollection.cs
- LayoutEditorPart.cs
- DiagnosticsConfigurationHandler.cs
- ListControl.cs
- StaticResourceExtension.cs
- CreateRefExpr.cs
- FormViewModeEventArgs.cs
- SystemIPGlobalStatistics.cs
- VideoDrawing.cs
- ItemsPanelTemplate.cs
- TabRenderer.cs
- SqlTriggerAttribute.cs
- SqlUtil.cs
- HttpTransportManager.cs
- MonikerUtility.cs
- Vector3DValueSerializer.cs
- OleDbWrapper.cs
- AmbientProperties.cs
- ListViewInsertedEventArgs.cs
- DataGridViewCheckBoxCell.cs
- QueryParameter.cs
- ListBoxChrome.cs
- AnnotationElement.cs