Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / DEVDIV / depot / DevDiv / releases / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / WebControls / CheckBoxField.cs / 2 / CheckBoxField.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; using System.Security.Permissions; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class CheckBoxField : BoundField { private bool _suppressPropertyThrows = false; ///Creates a field bounded to a data field in a ///. /// public CheckBoxField() { } ///Initializes a new instance of a ///class. /// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool ApplyFormatInEditMode { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ApplyFormatInEditMode")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ApplyFormatInEditMode")); } } } ///Indicates whether to apply the DataFormatString in edit mode ////// [ TypeConverter("System.Web.UI.Design.DataSourceBooleanViewSchemaConverter, " + AssemblyRef.SystemDesign), ] public override string DataField { get { return base.DataField; } set { base.DataField = value; } } ///Gets or sets the field name from the data model bound to this field. /// Overridden to change the type converter attribute. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override string DataFormatString { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "DataFormatString")); } return String.Empty; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "DataFormatString")); } } } ///Gets or sets the display format of data in this /// field. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool HtmlEncode { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncode")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncode")); } } } [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool HtmlEncodeFormatString { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncodeFormatString")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncodeFormatString")); } } } ///Gets or sets a property indicating whether data should be HtmlEncoded when it is displayed to the user. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override string NullDisplayText { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "NullDisplayText")); } return String.Empty; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "NullDisplayText")); } } } protected override bool SupportsHtmlEncode { get { return false; } } ///Gets or sets the property that determines what text is displayed if the value /// of the field is null. ////// [ Localizable(true), WebCategory("Appearance"), DefaultValue(""), WebSysDescription(SR.CheckBoxField_Text) ] public virtual string Text { get { object o = ViewState["Text"]; if (o != null) return (string)o; return String.Empty; } set { if (!String.Equals(value, ViewState["Text"])) { ViewState["Text"] = value; OnFieldChanged(); } } } ///Gets or sets the CheckBox's Text property in this /// field. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool ConvertEmptyStringToNull { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ConvertEmptyStringToNull")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ConvertEmptyStringToNull")); } } } protected override void CopyProperties(DataControlField newField) { ((CheckBoxField)newField).Text = Text; _suppressPropertyThrows = true; ((CheckBoxField)newField)._suppressPropertyThrows = true; base.CopyProperties(newField); _suppressPropertyThrows = false; ((CheckBoxField)newField)._suppressPropertyThrows = false; } protected override DataControlField CreateField() { return new CheckBoxField(); } ///Gets or sets the property that determines whether the BoundField treats empty string as /// null when the field values are extracted. ////// Extracts the value(s) from the given cell and puts the value(s) into a dictionary. Indicate includeReadOnly /// to have readonly fields' values inserted into the dictionary. /// public override void ExtractValuesFromCell(IOrderedDictionary dictionary, DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly) { 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); } } } ////// Returns a value to be used for design-time rendering /// protected override object GetDesignTimeValue() { return true; } ////// protected override void InitializeDataCell(DataControlFieldCell cell, DataControlRowState rowState) { CheckBox childControl = null; CheckBox boundControl = null; if (((rowState & DataControlRowState.Edit) != 0 && ReadOnly == false) || (rowState & DataControlRowState.Insert) != 0) { // CheckBox editor = new CheckBox(); editor.ToolTip = HeaderText; childControl = editor; if (DataField.Length != 0 && (rowState & DataControlRowState.Edit) != 0) { boundControl = editor; } } else if (DataField.Length != 0) { CheckBox editor = new CheckBox(); editor.Text = Text; editor.Enabled = false; childControl = editor; boundControl = editor; } if (childControl != null) { cell.Controls.Add(childControl); } if (boundControl != null && Visible) { boundControl.DataBinding += new EventHandler(this.OnDataBindField); } } ///Initializes a cell in the DataControlField. ////// Performs databinding the given field with data from the data source. /// protected override void OnDataBindField(object sender, EventArgs e) { 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); } } } ((CheckBox)boundControl).Text = Text; } ////// public override void ValidateSupportsCallback() { } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ //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; using System.Security.Permissions; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class CheckBoxField : BoundField { private bool _suppressPropertyThrows = false; ///Creates a field bounded to a data field in a ///. /// public CheckBoxField() { } ///Initializes a new instance of a ///class. /// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool ApplyFormatInEditMode { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ApplyFormatInEditMode")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ApplyFormatInEditMode")); } } } ///Indicates whether to apply the DataFormatString in edit mode ////// [ TypeConverter("System.Web.UI.Design.DataSourceBooleanViewSchemaConverter, " + AssemblyRef.SystemDesign), ] public override string DataField { get { return base.DataField; } set { base.DataField = value; } } ///Gets or sets the field name from the data model bound to this field. /// Overridden to change the type converter attribute. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override string DataFormatString { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "DataFormatString")); } return String.Empty; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "DataFormatString")); } } } ///Gets or sets the display format of data in this /// field. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool HtmlEncode { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncode")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncode")); } } } [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool HtmlEncodeFormatString { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncodeFormatString")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "HtmlEncodeFormatString")); } } } ///Gets or sets a property indicating whether data should be HtmlEncoded when it is displayed to the user. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override string NullDisplayText { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "NullDisplayText")); } return String.Empty; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "NullDisplayText")); } } } protected override bool SupportsHtmlEncode { get { return false; } } ///Gets or sets the property that determines what text is displayed if the value /// of the field is null. ////// [ Localizable(true), WebCategory("Appearance"), DefaultValue(""), WebSysDescription(SR.CheckBoxField_Text) ] public virtual string Text { get { object o = ViewState["Text"]; if (o != null) return (string)o; return String.Empty; } set { if (!String.Equals(value, ViewState["Text"])) { ViewState["Text"] = value; OnFieldChanged(); } } } ///Gets or sets the CheckBox's Text property in this /// field. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool ConvertEmptyStringToNull { get { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ConvertEmptyStringToNull")); } return false; } set { if (!_suppressPropertyThrows) { throw new NotSupportedException(SR.GetString(SR.CheckBoxField_NotSupported, "ConvertEmptyStringToNull")); } } } protected override void CopyProperties(DataControlField newField) { ((CheckBoxField)newField).Text = Text; _suppressPropertyThrows = true; ((CheckBoxField)newField)._suppressPropertyThrows = true; base.CopyProperties(newField); _suppressPropertyThrows = false; ((CheckBoxField)newField)._suppressPropertyThrows = false; } protected override DataControlField CreateField() { return new CheckBoxField(); } ///Gets or sets the property that determines whether the BoundField treats empty string as /// null when the field values are extracted. ////// Extracts the value(s) from the given cell and puts the value(s) into a dictionary. Indicate includeReadOnly /// to have readonly fields' values inserted into the dictionary. /// public override void ExtractValuesFromCell(IOrderedDictionary dictionary, DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly) { 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); } } } ////// Returns a value to be used for design-time rendering /// protected override object GetDesignTimeValue() { return true; } ////// protected override void InitializeDataCell(DataControlFieldCell cell, DataControlRowState rowState) { CheckBox childControl = null; CheckBox boundControl = null; if (((rowState & DataControlRowState.Edit) != 0 && ReadOnly == false) || (rowState & DataControlRowState.Insert) != 0) { // CheckBox editor = new CheckBox(); editor.ToolTip = HeaderText; childControl = editor; if (DataField.Length != 0 && (rowState & DataControlRowState.Edit) != 0) { boundControl = editor; } } else if (DataField.Length != 0) { CheckBox editor = new CheckBox(); editor.Text = Text; editor.Enabled = false; childControl = editor; boundControl = editor; } if (childControl != null) { cell.Controls.Add(childControl); } if (boundControl != null && Visible) { boundControl.DataBinding += new EventHandler(this.OnDataBindField); } } ///Initializes a cell in the DataControlField. ////// Performs databinding the given field with data from the data source. /// protected override void OnDataBindField(object sender, EventArgs e) { 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); } } } ((CheckBox)boundControl).Text = Text; } ////// public override void ValidateSupportsCallback() { } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.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
- DesignerListAdapter.cs
- SqlDataSourceCustomCommandPanel.cs
- EncoderParameter.cs
- XPathArrayIterator.cs
- ObsoleteAttribute.cs
- SmtpAuthenticationManager.cs
- XmlDocumentSerializer.cs
- ItemContainerGenerator.cs
- RequestCacheValidator.cs
- ResourceReferenceKeyNotFoundException.cs
- HtmlInputCheckBox.cs
- HtmlTableCell.cs
- DocComment.cs
- AnnotationResource.cs
- ScriptIgnoreAttribute.cs
- TextEditorTyping.cs
- httpstaticobjectscollection.cs
- InputElement.cs
- CriticalHandle.cs
- XmlEventCache.cs
- VisualStyleInformation.cs
- DataGridColumn.cs
- WebPartExportVerb.cs
- BamlResourceDeserializer.cs
- XamlBrushSerializer.cs
- IsolatedStorageSecurityState.cs
- ServiceXNameTypeConverter.cs
- NameScopePropertyAttribute.cs
- Component.cs
- OracleColumn.cs
- TabItem.cs
- SafeWaitHandle.cs
- XPathScanner.cs
- ApplicationInfo.cs
- TextClipboardData.cs
- ScriptReference.cs
- AppDomain.cs
- AccessedThroughPropertyAttribute.cs
- BufferedStream.cs
- WrappedIUnknown.cs
- GridItemCollection.cs
- OracleCommand.cs
- RoleManagerSection.cs
- ResXResourceReader.cs
- MeasureData.cs
- CodeDirectoryCompiler.cs
- ThicknessConverter.cs
- KeyboardNavigation.cs
- BigInt.cs
- UrlPath.cs
- DefaultExpression.cs
- HttpResponse.cs
- InputMethod.cs
- SinglePageViewer.cs
- WindowsPen.cs
- TargetControlTypeCache.cs
- StdValidatorsAndConverters.cs
- Multiply.cs
- ChildrenQuery.cs
- StringFormat.cs
- KeyValueConfigurationCollection.cs
- ServerValidateEventArgs.cs
- UIPropertyMetadata.cs
- RtfToXamlReader.cs
- Vector.cs
- PageContent.cs
- Operator.cs
- PageCodeDomTreeGenerator.cs
- DataGridViewImageCell.cs
- ZoneButton.cs
- IntSecurity.cs
- NonParentingControl.cs
- CompositeKey.cs
- PathSegmentCollection.cs
- GlobalItem.cs
- ManipulationLogic.cs
- ObjectManager.cs
- CustomValidator.cs
- SafeRightsManagementSessionHandle.cs
- CommandManager.cs
- XPathExpr.cs
- GuidelineSet.cs
- CodeParameterDeclarationExpression.cs
- PromptEventArgs.cs
- ObjectItemCollection.cs
- basevalidator.cs
- TextEditorCopyPaste.cs
- NameScopePropertyAttribute.cs
- CodeMemberEvent.cs
- XmlNamespaceDeclarationsAttribute.cs
- ProtocolsConfigurationHandler.cs
- DecimalAnimationUsingKeyFrames.cs
- TextElementEnumerator.cs
- ProfileProvider.cs
- BigInt.cs
- validationstate.cs
- _AcceptOverlappedAsyncResult.cs
- sqlpipe.cs
- DragEventArgs.cs
- ContainerCodeDomSerializer.cs