Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / WinForms / Managed / System / WinForms / ListViewInsertionMark.cs / 1 / ListViewInsertionMark.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Drawing; using System.Runtime.InteropServices; using System.Diagnostics; namespace System.Windows.Forms { ////// /// public sealed class ListViewInsertionMark { private ListView listView; private int index = 0; private Color color = Color.Empty; private bool appearsAfterItem = false; internal ListViewInsertionMark(ListView listView) { this.listView = listView; } ////// Encapsulates insertion-mark information /// ////// /// Specifies whether the insertion mark appears /// after the item - otherwise it appears /// before the item (the default). /// /// public bool AppearsAfterItem { get { return appearsAfterItem; } set { if (appearsAfterItem != value) { appearsAfterItem = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Returns bounds of the insertion-mark. /// /// public Rectangle Bounds { get { NativeMethods.RECT rect = new NativeMethods.RECT(); listView.SendMessage(NativeMethods.LVM_GETINSERTMARKRECT, 0, ref rect); return Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom); } } ////// /// The color of the insertion-mark. /// /// public Color Color { get { if (color.IsEmpty) { color = SafeNativeMethods.ColorFromCOLORREF((int)listView.SendMessage(NativeMethods.LVM_GETINSERTMARKCOLOR, 0, 0)); } return color; } set { if (color != value) { color = value; if (listView.IsHandleCreated) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } ////// /// Item next to which the insertion-mark appears. /// /// public int Index { get { return index; } set { if (index != value) { index = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Performs a hit-test at the specified insertion point /// and returns the closest item. /// /// public int NearestIndex(Point pt) { NativeMethods.POINT point = new NativeMethods.POINT(); point.x = pt.X; point.y = pt.Y; NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_INSERTMARKHITTEST, point, lvInsertMark); return lvInsertMark.iItem; } internal void UpdateListView() { Debug.Assert(listView.IsHandleCreated, "ApplySavedState Precondition: List-view handle must be created"); NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); lvInsertMark.dwFlags = appearsAfterItem ? NativeMethods.LVIM_AFTER : 0; lvInsertMark.iItem = index; UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_SETINSERTMARK, 0, lvInsertMark); if (!color.IsEmpty) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Drawing; using System.Runtime.InteropServices; using System.Diagnostics; namespace System.Windows.Forms { ////// /// public sealed class ListViewInsertionMark { private ListView listView; private int index = 0; private Color color = Color.Empty; private bool appearsAfterItem = false; internal ListViewInsertionMark(ListView listView) { this.listView = listView; } ////// Encapsulates insertion-mark information /// ////// /// Specifies whether the insertion mark appears /// after the item - otherwise it appears /// before the item (the default). /// /// public bool AppearsAfterItem { get { return appearsAfterItem; } set { if (appearsAfterItem != value) { appearsAfterItem = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Returns bounds of the insertion-mark. /// /// public Rectangle Bounds { get { NativeMethods.RECT rect = new NativeMethods.RECT(); listView.SendMessage(NativeMethods.LVM_GETINSERTMARKRECT, 0, ref rect); return Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom); } } ////// /// The color of the insertion-mark. /// /// public Color Color { get { if (color.IsEmpty) { color = SafeNativeMethods.ColorFromCOLORREF((int)listView.SendMessage(NativeMethods.LVM_GETINSERTMARKCOLOR, 0, 0)); } return color; } set { if (color != value) { color = value; if (listView.IsHandleCreated) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } ////// /// Item next to which the insertion-mark appears. /// /// public int Index { get { return index; } set { if (index != value) { index = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Performs a hit-test at the specified insertion point /// and returns the closest item. /// /// public int NearestIndex(Point pt) { NativeMethods.POINT point = new NativeMethods.POINT(); point.x = pt.X; point.y = pt.Y; NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_INSERTMARKHITTEST, point, lvInsertMark); return lvInsertMark.iItem; } internal void UpdateListView() { Debug.Assert(listView.IsHandleCreated, "ApplySavedState Precondition: List-view handle must be created"); NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); lvInsertMark.dwFlags = appearsAfterItem ? NativeMethods.LVIM_AFTER : 0; lvInsertMark.iItem = index; UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_SETINSERTMARK, 0, lvInsertMark); if (!color.IsEmpty) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } // 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
- MissingMethodException.cs
- DirectoryNotFoundException.cs
- MdiWindowListItemConverter.cs
- IResourceProvider.cs
- DownloadProgressEventArgs.cs
- GridViewRowEventArgs.cs
- XamlReader.cs
- Adorner.cs
- ZoomingMessageFilter.cs
- ElementMarkupObject.cs
- XmlSchemaNotation.cs
- AdCreatedEventArgs.cs
- WindowsEditBoxRange.cs
- Activation.cs
- MenuEventArgs.cs
- DrawingCollection.cs
- MessageHeader.cs
- ListControlConvertEventArgs.cs
- DataGridItem.cs
- SizeKeyFrameCollection.cs
- Component.cs
- Mappings.cs
- QueryLifecycle.cs
- WebServiceMethodData.cs
- LocalValueEnumerator.cs
- UIElementPropertyUndoUnit.cs
- XmlObjectSerializerWriteContextComplexJson.cs
- PartialTrustHelpers.cs
- DES.cs
- TagMapCollection.cs
- PrimaryKeyTypeConverter.cs
- TextOptionsInternal.cs
- GridLength.cs
- SerializerWriterEventHandlers.cs
- AttributeEmitter.cs
- ConfigurationSettings.cs
- Privilege.cs
- PolyLineSegment.cs
- Header.cs
- Main.cs
- Fonts.cs
- EventLogTraceListener.cs
- SymbolTable.cs
- GrammarBuilderRuleRef.cs
- ReturnEventArgs.cs
- ConcurrentStack.cs
- OletxDependentTransaction.cs
- RichListBox.cs
- MergeFailedEvent.cs
- Condition.cs
- ChannelManager.cs
- SourceItem.cs
- SmtpFailedRecipientException.cs
- DataServices.cs
- LeaseManager.cs
- FusionWrap.cs
- _Connection.cs
- NonBatchDirectoryCompiler.cs
- EncoderNLS.cs
- DrawingContextWalker.cs
- PerfCounterSection.cs
- GridPatternIdentifiers.cs
- BuildProviderCollection.cs
- ToolStripSettings.cs
- RegexReplacement.cs
- ConfigurationException.cs
- FullTextBreakpoint.cs
- COM2ExtendedBrowsingHandler.cs
- WinEventTracker.cs
- DbXmlEnabledProviderManifest.cs
- MasterPageCodeDomTreeGenerator.cs
- HtmlLiteralTextAdapter.cs
- EntityKeyElement.cs
- XmlILConstructAnalyzer.cs
- SchemaTypeEmitter.cs
- SqlFlattener.cs
- OleDbCommand.cs
- EntityModelSchemaGenerator.cs
- ResolveMatchesMessageCD1.cs
- PointUtil.cs
- GuidConverter.cs
- TreeNodeStyleCollection.cs
- CacheAxisQuery.cs
- ListViewDataItem.cs
- BoundColumn.cs
- ItemCheckEvent.cs
- DataMisalignedException.cs
- Scene3D.cs
- ComponentEditorPage.cs
- ScrollItemProviderWrapper.cs
- GACIdentityPermission.cs
- SafeNativeMethods.cs
- Receive.cs
- XmlElementAttributes.cs
- XmlResolver.cs
- Misc.cs
- XmlTextWriter.cs
- ImageListDesigner.cs
- LogEntry.cs
- OracleRowUpdatingEventArgs.cs