Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / AutoGeneratedField.cs / 1305376 / AutoGeneratedField.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; ////// [EditorBrowsable(EditorBrowsableState.Never)] public sealed class AutoGeneratedField : BoundField { private bool _suppressPropertyThrows = false; private bool _useCheckBox; private bool _useCheckBoxValid; ///Creates a field bounded to a data field in a ///. /// public AutoGeneratedField(string dataField) { DataField = dataField; } ///Initializes a new instance of a ///class. /// public override string DataFormatString { get { return base.DataFormatString; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets the display format of data in this /// field. ////// public Type DataType { get { object o = ViewState["DataType"]; if (o != null) { return (Type)o; } return typeof(string); } set { ViewState["DataType"] = value; } } ///Gets or sets the type of data being displayed by the field. ////// public override bool InsertVisible { get { return base.InsertVisible; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets whether the field is visible in Insert mode. Turn off for auto-gen'd db fields ////// public override bool ConvertEmptyStringToNull { get { return base.ConvertEmptyStringToNull; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets the property that determines whether the BoundField treats empty string as /// null when the field values are extracted. ////// private bool UseCheckBox { get { if (!_useCheckBoxValid) { _useCheckBox = (DataType == typeof(bool) || DataType == typeof(bool?)); _useCheckBoxValid = true; } return _useCheckBox; } } protected override void CopyProperties(DataControlField newField) { ((AutoGeneratedField)newField).DataType = DataType; _suppressPropertyThrows = true; ((AutoGeneratedField)newField)._suppressPropertyThrows = true; base.CopyProperties(newField); _suppressPropertyThrows = false; ((AutoGeneratedField)newField)._suppressPropertyThrows = false; } protected override DataControlField CreateField() { return new AutoGeneratedField(DataField); } ///Determines whether the field should display a text box. ////// Returns a value to be used for design-time rendering /// protected override object GetDesignTimeValue() { if (UseCheckBox) { return true; } return base.GetDesignTimeValue(); } ////// Extracts the value of the databound cell and inserts the value into the given dictionary /// public override void ExtractValuesFromCell(IOrderedDictionary dictionary, DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly) { if (UseCheckBox) { Control childControl = null; string dataField = DataField; object value = null; if (cell.Controls.Count > 0) { childControl = cell.Controls[0]; CheckBox checkBox = childControl as CheckBox; if (checkBox != null) { if (includeReadOnly || checkBox.Enabled) { value = checkBox.Checked; } } } if (value != null) { if (dictionary.Contains(dataField)) { dictionary[dataField] = value; } else { dictionary.Add(dataField, value); } } } else { base.ExtractValuesFromCell(dictionary, cell, rowState, includeReadOnly); } } protected override void InitializeDataCell(DataControlFieldCell cell, DataControlRowState rowState) { if (UseCheckBox) { CheckBox childControl = null; CheckBox boundControl = null; if (((rowState & DataControlRowState.Edit) != 0 && ReadOnly == false) || (rowState & DataControlRowState.Insert) != 0) { CheckBox editor = new CheckBox(); childControl = editor; if (DataField.Length != 0 && (rowState & DataControlRowState.Edit) != 0) { boundControl = editor; } } else if (DataField.Length != 0) { CheckBox editor = new CheckBox(); editor.Enabled = false; childControl = editor; boundControl = editor; } if (childControl != null) { childControl.ToolTip = HeaderText; cell.Controls.Add(childControl); } if (boundControl != null) { boundControl.DataBinding += new EventHandler(this.OnDataBindField); } } else { base.InitializeDataCell(cell, rowState); } } ////// protected override void OnDataBindField(object sender, EventArgs e) { if (UseCheckBox) { Control boundControl = (Control)sender; Control controlContainer = boundControl.NamingContainer; object data = GetValue(controlContainer); if (!(boundControl is CheckBox)) { throw new HttpException(SR.GetString(SR.CheckBoxField_WrongControlType, DataField)); } if (DataBinder.IsNull(data)) { ((CheckBox)boundControl).Checked = false; } else { if (data is Boolean) { ((CheckBox)boundControl).Checked = (Boolean)data; } else { try { ((CheckBox)boundControl).Checked = Boolean.Parse(data.ToString()); } catch (FormatException fe) { throw new HttpException(SR.GetString(SR.CheckBoxField_CouldntParseAsBoolean, DataField), fe); } } } } else { base.OnDataBindField(sender, e); } } ////// public override void ValidateSupportsCallback() { } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //Override with an empty body if the field's controls all support callback. /// Otherwise, override and throw a useful error message about why the field can't support callbacks. ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; ////// [EditorBrowsable(EditorBrowsableState.Never)] public sealed class AutoGeneratedField : BoundField { private bool _suppressPropertyThrows = false; private bool _useCheckBox; private bool _useCheckBoxValid; ///Creates a field bounded to a data field in a ///. /// public AutoGeneratedField(string dataField) { DataField = dataField; } ///Initializes a new instance of a ///class. /// public override string DataFormatString { get { return base.DataFormatString; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets the display format of data in this /// field. ////// public Type DataType { get { object o = ViewState["DataType"]; if (o != null) { return (Type)o; } return typeof(string); } set { ViewState["DataType"] = value; } } ///Gets or sets the type of data being displayed by the field. ////// public override bool InsertVisible { get { return base.InsertVisible; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets whether the field is visible in Insert mode. Turn off for auto-gen'd db fields ////// public override bool ConvertEmptyStringToNull { get { return base.ConvertEmptyStringToNull; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(); } } } ///Gets or sets the property that determines whether the BoundField treats empty string as /// null when the field values are extracted. ////// private bool UseCheckBox { get { if (!_useCheckBoxValid) { _useCheckBox = (DataType == typeof(bool) || DataType == typeof(bool?)); _useCheckBoxValid = true; } return _useCheckBox; } } protected override void CopyProperties(DataControlField newField) { ((AutoGeneratedField)newField).DataType = DataType; _suppressPropertyThrows = true; ((AutoGeneratedField)newField)._suppressPropertyThrows = true; base.CopyProperties(newField); _suppressPropertyThrows = false; ((AutoGeneratedField)newField)._suppressPropertyThrows = false; } protected override DataControlField CreateField() { return new AutoGeneratedField(DataField); } ///Determines whether the field should display a text box. ////// Returns a value to be used for design-time rendering /// protected override object GetDesignTimeValue() { if (UseCheckBox) { return true; } return base.GetDesignTimeValue(); } ////// Extracts the value of the databound cell and inserts the value into the given dictionary /// public override void ExtractValuesFromCell(IOrderedDictionary dictionary, DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly) { if (UseCheckBox) { Control childControl = null; string dataField = DataField; object value = null; if (cell.Controls.Count > 0) { childControl = cell.Controls[0]; CheckBox checkBox = childControl as CheckBox; if (checkBox != null) { if (includeReadOnly || checkBox.Enabled) { value = checkBox.Checked; } } } if (value != null) { if (dictionary.Contains(dataField)) { dictionary[dataField] = value; } else { dictionary.Add(dataField, value); } } } else { base.ExtractValuesFromCell(dictionary, cell, rowState, includeReadOnly); } } protected override void InitializeDataCell(DataControlFieldCell cell, DataControlRowState rowState) { if (UseCheckBox) { CheckBox childControl = null; CheckBox boundControl = null; if (((rowState & DataControlRowState.Edit) != 0 && ReadOnly == false) || (rowState & DataControlRowState.Insert) != 0) { CheckBox editor = new CheckBox(); childControl = editor; if (DataField.Length != 0 && (rowState & DataControlRowState.Edit) != 0) { boundControl = editor; } } else if (DataField.Length != 0) { CheckBox editor = new CheckBox(); editor.Enabled = false; childControl = editor; boundControl = editor; } if (childControl != null) { childControl.ToolTip = HeaderText; cell.Controls.Add(childControl); } if (boundControl != null) { boundControl.DataBinding += new EventHandler(this.OnDataBindField); } } else { base.InitializeDataCell(cell, rowState); } } ////// protected override void OnDataBindField(object sender, EventArgs e) { if (UseCheckBox) { Control boundControl = (Control)sender; Control controlContainer = boundControl.NamingContainer; object data = GetValue(controlContainer); if (!(boundControl is CheckBox)) { throw new HttpException(SR.GetString(SR.CheckBoxField_WrongControlType, DataField)); } if (DataBinder.IsNull(data)) { ((CheckBox)boundControl).Checked = false; } else { if (data is Boolean) { ((CheckBox)boundControl).Checked = (Boolean)data; } else { try { ((CheckBox)boundControl).Checked = Boolean.Parse(data.ToString()); } catch (FormatException fe) { throw new HttpException(SR.GetString(SR.CheckBoxField_CouldntParseAsBoolean, DataField), fe); } } } } else { base.OnDataBindField(sender, e); } } ////// public override void ValidateSupportsCallback() { } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Override with an empty body if the field's controls all support callback. /// Otherwise, override and throw a useful error message about why the field can't support callbacks. ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DataTableExtensions.cs
- CodeSubDirectory.cs
- EntityDesignerDataSourceView.cs
- GridViewUpdatedEventArgs.cs
- SerializationInfoEnumerator.cs
- DisplayNameAttribute.cs
- LabelDesigner.cs
- EntityDataSourceContainerNameConverter.cs
- Single.cs
- BitFlagsGenerator.cs
- IDReferencePropertyAttribute.cs
- SemanticBasicElement.cs
- DataGridViewCellContextMenuStripNeededEventArgs.cs
- RuleSetReference.cs
- ObjectDataSourceDesigner.cs
- DataGridState.cs
- DataGridViewMethods.cs
- GAC.cs
- Selection.cs
- BitArray.cs
- LayeredChannelFactory.cs
- HtmlWindowCollection.cs
- InProcStateClientManager.cs
- HijriCalendar.cs
- ActivitySurrogate.cs
- ExpressionTextBoxAutomationPeer.cs
- Timer.cs
- CompareInfo.cs
- Parameter.cs
- TerminateSequenceResponse.cs
- ThemeableAttribute.cs
- LineGeometry.cs
- RegexParser.cs
- DbRetry.cs
- SHA256Managed.cs
- WrapPanel.cs
- Item.cs
- RawStylusInputCustomData.cs
- CustomErrorsSectionWrapper.cs
- OnOperation.cs
- ResourceSet.cs
- ResourceReferenceKeyNotFoundException.cs
- TextChange.cs
- Tuple.cs
- ExclusiveNamedPipeTransportManager.cs
- WorkflowRuntimeServiceElement.cs
- SystemIPInterfaceProperties.cs
- WinFormsComponentEditor.cs
- ServiceReference.cs
- TileModeValidation.cs
- SurrogateSelector.cs
- StreamWithDictionary.cs
- CompareValidator.cs
- SettingsPropertyValue.cs
- BinarySerializer.cs
- AsyncDataRequest.cs
- StylusButtonCollection.cs
- ListControlDesigner.cs
- MetadataItemEmitter.cs
- XmlLanguage.cs
- WindowsRichEditRange.cs
- Function.cs
- PathStreamGeometryContext.cs
- SkipStoryboardToFill.cs
- SmtpException.cs
- PixelFormats.cs
- StringDictionary.cs
- CompilerError.cs
- TemplateBindingExpression.cs
- OutputWindow.cs
- safelink.cs
- FolderBrowserDialog.cs
- ScrollBarRenderer.cs
- FrameSecurityDescriptor.cs
- ValueTypePropertyReference.cs
- SqlProfileProvider.cs
- UInt32.cs
- InputLangChangeRequestEvent.cs
- Figure.cs
- UrlMappingsModule.cs
- HttpAsyncResult.cs
- SerializationFieldInfo.cs
- DispatcherOperation.cs
- CreateUserWizardStep.cs
- DbProviderFactoriesConfigurationHandler.cs
- SqlWriter.cs
- NativeWindow.cs
- RuleRefElement.cs
- DefaultPropertyAttribute.cs
- FixedDocumentPaginator.cs
- FormatConvertedBitmap.cs
- UnlockInstanceCommand.cs
- Drawing.cs
- ADConnectionHelper.cs
- ServiceHttpHandlerFactory.cs
- _NativeSSPI.cs
- GlyphsSerializer.cs
- Int16.cs
- FontStyle.cs
- ResourceDescriptionAttribute.cs