Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / DataGridViewComboBoxEditingControl.cs / 1305376 / DataGridViewComboBoxEditingControl.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Drawing; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; ///[ ComVisible(true), ClassInterface(ClassInterfaceType.AutoDispatch) ] public class DataGridViewComboBoxEditingControl : ComboBox, IDataGridViewEditingControl { private DataGridView dataGridView; private bool valueChanged; private int rowIndex; /// public DataGridViewComboBoxEditingControl() : base() { this.TabStop = false; } // IDataGridViewEditingControl interface implementation /// public virtual DataGridView EditingControlDataGridView { get { return this.dataGridView; } set { this.dataGridView = value; } } /// public virtual object EditingControlFormattedValue { get { return GetEditingControlFormattedValue(DataGridViewDataErrorContexts.Formatting); } set { string valueStr = value as string; if (valueStr != null) { this.Text = valueStr; if (String.Compare(valueStr, this.Text, true, CultureInfo.CurrentCulture) != 0) { this.SelectedIndex = -1; } } } } /// public virtual int EditingControlRowIndex { get { return this.rowIndex; } set { this.rowIndex = value; } } /// public virtual bool EditingControlValueChanged { get { return this.valueChanged; } set { this.valueChanged = value; } } /// public virtual Cursor EditingPanelCursor { get { return Cursors.Default; } } /// public virtual bool RepositionEditingControlOnValueChange { get { return false; } } /// public virtual void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle) { this.Font = dataGridViewCellStyle.Font; if (dataGridViewCellStyle.BackColor.A < 255) { // Our ComboBox does not support transparent back colors Color opaqueBackColor = Color.FromArgb(255, dataGridViewCellStyle.BackColor); this.BackColor = opaqueBackColor; this.dataGridView.EditingPanel.BackColor = opaqueBackColor; } else { this.BackColor = dataGridViewCellStyle.BackColor; } this.ForeColor = dataGridViewCellStyle.ForeColor; } /// public virtual bool EditingControlWantsInputKey(Keys keyData, bool dataGridViewWantsInputKey) { if ((keyData & Keys.KeyCode) == Keys.Down || (keyData & Keys.KeyCode) == Keys.Up || (this.DroppedDown && ((keyData & Keys.KeyCode) == Keys.Escape) || (keyData & Keys.KeyCode) == Keys.Enter)) { return true; } return !dataGridViewWantsInputKey; } /// public virtual object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context) { return this.Text; } /// public virtual void PrepareEditingControlForEdit(bool selectAll) { if (selectAll) { SelectAll(); } } private void NotifyDataGridViewOfValueChange() { this.valueChanged = true; this.dataGridView.NotifyCurrentCellDirty(true); } /// protected override void OnSelectedIndexChanged(EventArgs e) { base.OnSelectedIndexChanged(e); if (this.SelectedIndex != -1) { NotifyDataGridViewOfValueChange(); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Drawing; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; ///[ ComVisible(true), ClassInterface(ClassInterfaceType.AutoDispatch) ] public class DataGridViewComboBoxEditingControl : ComboBox, IDataGridViewEditingControl { private DataGridView dataGridView; private bool valueChanged; private int rowIndex; /// public DataGridViewComboBoxEditingControl() : base() { this.TabStop = false; } // IDataGridViewEditingControl interface implementation /// public virtual DataGridView EditingControlDataGridView { get { return this.dataGridView; } set { this.dataGridView = value; } } /// public virtual object EditingControlFormattedValue { get { return GetEditingControlFormattedValue(DataGridViewDataErrorContexts.Formatting); } set { string valueStr = value as string; if (valueStr != null) { this.Text = valueStr; if (String.Compare(valueStr, this.Text, true, CultureInfo.CurrentCulture) != 0) { this.SelectedIndex = -1; } } } } /// public virtual int EditingControlRowIndex { get { return this.rowIndex; } set { this.rowIndex = value; } } /// public virtual bool EditingControlValueChanged { get { return this.valueChanged; } set { this.valueChanged = value; } } /// public virtual Cursor EditingPanelCursor { get { return Cursors.Default; } } /// public virtual bool RepositionEditingControlOnValueChange { get { return false; } } /// public virtual void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle) { this.Font = dataGridViewCellStyle.Font; if (dataGridViewCellStyle.BackColor.A < 255) { // Our ComboBox does not support transparent back colors Color opaqueBackColor = Color.FromArgb(255, dataGridViewCellStyle.BackColor); this.BackColor = opaqueBackColor; this.dataGridView.EditingPanel.BackColor = opaqueBackColor; } else { this.BackColor = dataGridViewCellStyle.BackColor; } this.ForeColor = dataGridViewCellStyle.ForeColor; } /// public virtual bool EditingControlWantsInputKey(Keys keyData, bool dataGridViewWantsInputKey) { if ((keyData & Keys.KeyCode) == Keys.Down || (keyData & Keys.KeyCode) == Keys.Up || (this.DroppedDown && ((keyData & Keys.KeyCode) == Keys.Escape) || (keyData & Keys.KeyCode) == Keys.Enter)) { return true; } return !dataGridViewWantsInputKey; } /// public virtual object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context) { return this.Text; } /// public virtual void PrepareEditingControlForEdit(bool selectAll) { if (selectAll) { SelectAll(); } } private void NotifyDataGridViewOfValueChange() { this.valueChanged = true; this.dataGridView.NotifyCurrentCellDirty(true); } /// protected override void OnSelectedIndexChanged(EventArgs e) { base.OnSelectedIndexChanged(e); if (this.SelectedIndex != -1) { NotifyDataGridViewOfValueChange(); } } } } // 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
- TextParaClient.cs
- ConnectionPointConverter.cs
- IncrementalReadDecoders.cs
- _CookieModule.cs
- LifetimeServices.cs
- CharAnimationBase.cs
- BinaryWriter.cs
- XmlMemberMapping.cs
- EntityViewGenerationAttribute.cs
- BuildResult.cs
- XmlKeywords.cs
- SelectionItemProviderWrapper.cs
- CompiledQuery.cs
- CodeConstructor.cs
- WindowsListBox.cs
- AlignmentXValidation.cs
- DataContractSerializerServiceBehavior.cs
- DoubleCollection.cs
- HttpListenerResponse.cs
- DBCommandBuilder.cs
- HwndAppCommandInputProvider.cs
- TableAdapterManagerMethodGenerator.cs
- HostingMessageProperty.cs
- WS2007HttpBindingCollectionElement.cs
- SqlParameterCollection.cs
- ObjectDataSourceStatusEventArgs.cs
- FilteredAttributeCollection.cs
- TrackingRecord.cs
- Pkcs9Attribute.cs
- DataTrigger.cs
- BulletedListEventArgs.cs
- WindowsListBox.cs
- XmlUtf8RawTextWriter.cs
- SHA1.cs
- HttpChannelBindingToken.cs
- StrongNamePublicKeyBlob.cs
- InstalledVoice.cs
- SystemResources.cs
- SqlConnectionFactory.cs
- ApplyTemplatesAction.cs
- SystemResources.cs
- ContentPresenter.cs
- SchemaDeclBase.cs
- ObjectSelectorEditor.cs
- BuildProviderAppliesToAttribute.cs
- OracleInfoMessageEventArgs.cs
- TypeDependencyAttribute.cs
- StyleSelector.cs
- SplitterPanel.cs
- SqlLiftWhereClauses.cs
- FillErrorEventArgs.cs
- CacheHelper.cs
- WhiteSpaceTrimStringConverter.cs
- OleStrCAMarshaler.cs
- LineVisual.cs
- ProtectedConfigurationSection.cs
- HttpResponseHeader.cs
- WebRequestModuleElement.cs
- StreamSecurityUpgradeInitiator.cs
- StringBuilder.cs
- Asn1IntegerConverter.cs
- GridViewRowEventArgs.cs
- IsolatedStorage.cs
- MergeFilterQuery.cs
- HtmlGenericControl.cs
- DesignerForm.cs
- LogEntrySerialization.cs
- GridViewDeletedEventArgs.cs
- IIS7WorkerRequest.cs
- SQLBytesStorage.cs
- x509store.cs
- TypeUsage.cs
- SqlConnectionFactory.cs
- HijriCalendar.cs
- TextEndOfParagraph.cs
- DelegateBodyWriter.cs
- ResourceExpression.cs
- httpapplicationstate.cs
- RightsManagementEncryptedStream.cs
- ParallelLoopState.cs
- DataGridViewRowDividerDoubleClickEventArgs.cs
- ToolStripDropDownItem.cs
- GraphicsPathIterator.cs
- EntityDataSourceWizardForm.cs
- XmlRawWriterWrapper.cs
- ParameterCollection.cs
- SudsCommon.cs
- RangeBase.cs
- UInt32Converter.cs
- DesignerVerbToolStripMenuItem.cs
- RoleManagerSection.cs
- ValidationSettings.cs
- SpotLight.cs
- Literal.cs
- UnitySerializationHolder.cs
- _ConnectionGroup.cs
- Int64Converter.cs
- PageCatalogPart.cs
- IntegerCollectionEditor.cs
- ListBox.cs