Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / ButtonColumn.cs / 1 / ButtonColumn.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.ComponentModel; using System.Globalization; using System.Web; using System.Web.UI; using System.Security.Permissions; using System.Web.Util; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class ButtonColumn : DataGridColumn { private PropertyDescriptor textFieldDesc; ///Creates a column with a set of ////// controls. /// public ButtonColumn() { } ///Initializes a new instance of the ///class. /// [ WebCategory("Appearance"), DefaultValue(ButtonColumnType.LinkButton), WebSysDescriptionAttribute(SR.ButtonColumn_ButtonType) ] public virtual ButtonColumnType ButtonType { get { object o = ViewState["ButtonType"]; if (o != null) return(ButtonColumnType)o; return ButtonColumnType.LinkButton; } set { if (value < ButtonColumnType.LinkButton || value > ButtonColumnType.PushButton) { throw new ArgumentOutOfRangeException("value"); } ViewState["ButtonType"] = value; OnColumnChanged(); } } [ DefaultValue(false), WebSysDescriptionAttribute(SR.ButtonColumn_CausesValidation) ] public virtual bool CausesValidation { get { object o = ViewState["CausesValidation"]; if (o != null) { return (bool)o; } return false; } set { ViewState["CausesValidation"] = value; OnColumnChanged(); } } ///Gets or sets the type of button to render in the /// column. ////// [ WebCategory("Behavior"), DefaultValue(""), WebSysDescriptionAttribute(SR.WebControl_CommandName) ] public virtual string CommandName { get { object o = ViewState["CommandName"]; if (o != null) return(string)o; return string.Empty; } set { ViewState["CommandName"] = value; OnColumnChanged(); } } ///Gets or sets the command to perform when this ////// is clicked. /// [ WebCategory("Data"), DefaultValue(""), WebSysDescriptionAttribute(SR.ButtonColumn_DataTextField) ] public virtual string DataTextField { get { object o = ViewState["DataTextField"]; if (o != null) return(string)o; return String.Empty; } set { ViewState["DataTextField"] = value; OnColumnChanged(); } } ///Gets or sets the field name from the data model that is /// bound to the ///property of the button in this column. /// [ WebCategory("Data"), DefaultValue(""), WebSysDescriptionAttribute(SR.ButtonColumn_DataTextFormatString) ] public virtual string DataTextFormatString { get { object o = ViewState["DataTextFormatString"]; if (o != null) return(string)o; return String.Empty; } set { ViewState["DataTextFormatString"] = value; OnColumnChanged(); } } ///Gets or sets the string used to format the data bound to /// the ///property of the button. /// [ Localizable(true), WebCategory("Appearance"), DefaultValue(""), WebSysDescriptionAttribute(SR.ButtonColumn_Text) ] public virtual string Text { get { object o = ViewState["Text"]; if (o != null) return(string)o; return String.Empty; } set { ViewState["Text"] = value; OnColumnChanged(); } } [ DefaultValue(""), WebSysDescriptionAttribute(SR.ButtonColumn_ValidationGroup) ] public virtual string ValidationGroup { get { object o = ViewState["ValidationGroup"]; if (o != null) { return (string)o; } return String.Empty; } set { ViewState["ValidationGroup"] = value; OnColumnChanged(); } } ///Gets or sets the caption text displayed on the ////// in this column. /// protected virtual string FormatDataTextValue(object dataTextValue) { string formattedTextValue = String.Empty; if (!DataBinder.IsNull(dataTextValue)) { string formatting = DataTextFormatString; if (formatting.Length == 0) { formattedTextValue = dataTextValue.ToString(); } else { formattedTextValue = String.Format(CultureInfo.CurrentCulture, formatting, dataTextValue); } } return formattedTextValue; } ////// public override void Initialize() { base.Initialize(); textFieldDesc = null; } ////// public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType) { base.InitializeCell(cell, columnIndex, itemType); if ((itemType != ListItemType.Header) && (itemType != ListItemType.Footer)) { WebControl buttonControl = null; if (ButtonType == ButtonColumnType.LinkButton) { LinkButton button = new DataGridLinkButton(); button.Text = Text; button.CommandName = CommandName; button.CausesValidation = CausesValidation; button.ValidationGroup = ValidationGroup; buttonControl = button; } else { Button button = new Button(); button.Text = Text; button.CommandName = CommandName; button.CausesValidation = CausesValidation; button.ValidationGroup = ValidationGroup; buttonControl = button; } if (DataTextField.Length != 0) { buttonControl.DataBinding += new EventHandler(this.OnDataBindColumn); } cell.Controls.Add(buttonControl); } } ///Initializes a cell in the ///. /// private void OnDataBindColumn(object sender, EventArgs e) { Debug.Assert(DataTextField.Length != 0, "Shouldn't be DataBinding without a DataTextField"); Control boundControl = (Control)sender; DataGridItem item = (DataGridItem)boundControl.NamingContainer; object dataItem = item.DataItem; if (textFieldDesc == null) { string dataField = DataTextField; textFieldDesc = TypeDescriptor.GetProperties(dataItem).Find(dataField, true); if ((textFieldDesc == null) && !DesignMode) { throw new HttpException(SR.GetString(SR.Field_Not_Found, dataField)); } } string dataValue; if (textFieldDesc != null) { object data = textFieldDesc.GetValue(dataItem); dataValue = FormatDataTextValue(data); } else { Debug.Assert(DesignMode == true); dataValue = SR.GetString(SR.Sample_Databound_Text); } if (boundControl is LinkButton) { ((LinkButton)boundControl).Text = dataValue; } else { Debug.Assert(boundControl is Button, "Expected the bound control to be a Button"); ((Button)boundControl).Text = dataValue; } } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SqlReorderer.cs
- Journaling.cs
- TransformedBitmap.cs
- ByteConverter.cs
- DataKeyCollection.cs
- StreamUpgradeProvider.cs
- DelayedRegex.cs
- LedgerEntry.cs
- UInt64Storage.cs
- shaperfactoryquerycacheentry.cs
- AnnotationResourceCollection.cs
- ListView.cs
- SiblingIterators.cs
- DrawingContextDrawingContextWalker.cs
- AlternateViewCollection.cs
- DurationConverter.cs
- EtwTrace.cs
- PagesSection.cs
- HuffmanTree.cs
- ToolStripItemGlyph.cs
- TypeExtensionConverter.cs
- MainMenu.cs
- ComplexPropertyEntry.cs
- ElementAction.cs
- SqlBooleanMismatchVisitor.cs
- ImageField.cs
- WebPartTransformerCollection.cs
- Hash.cs
- CustomTrackingRecord.cs
- TextEffect.cs
- ContractUtils.cs
- CompilerWrapper.cs
- DebuggerAttributes.cs
- GridViewCommandEventArgs.cs
- CompilerState.cs
- FixedSOMPageElement.cs
- KeyNotFoundException.cs
- TextRenderer.cs
- ColorAnimationBase.cs
- ScopelessEnumAttribute.cs
- FontWeights.cs
- ParameterEditorUserControl.cs
- ConfigurationProperty.cs
- MenuEventArgs.cs
- VectorConverter.cs
- PolyBezierSegment.cs
- _SSPISessionCache.cs
- ReadOnlyHierarchicalDataSource.cs
- XamlPoint3DCollectionSerializer.cs
- InstanceValue.cs
- ByteStreamGeometryContext.cs
- LinkDescriptor.cs
- DES.cs
- PositiveTimeSpanValidator.cs
- AxDesigner.cs
- TextBoxDesigner.cs
- Confirm.cs
- PartialTrustHelpers.cs
- BindingMemberInfo.cs
- ReflectTypeDescriptionProvider.cs
- StyleSelector.cs
- AsymmetricCryptoHandle.cs
- BindingMemberInfo.cs
- _NestedMultipleAsyncResult.cs
- TextContainerChangedEventArgs.cs
- StylusShape.cs
- ServiceRoute.cs
- CodeSubDirectoriesCollection.cs
- SqlSelectStatement.cs
- FormViewPagerRow.cs
- _HeaderInfoTable.cs
- GeneratedContractType.cs
- OperatingSystem.cs
- SequentialOutput.cs
- NameObjectCollectionBase.cs
- QilUnary.cs
- ServiceThrottlingElement.cs
- ExceptionHelpers.cs
- PipelineModuleStepContainer.cs
- Maps.cs
- ArraySortHelper.cs
- WebErrorHandler.cs
- DataRelation.cs
- PerfCounters.cs
- TreeViewDataItemAutomationPeer.cs
- FormatterServices.cs
- PerfCounters.cs
- Mappings.cs
- BindingFormattingDialog.cs
- Visual.cs
- QueryResponse.cs
- StreamSecurityUpgradeInitiatorBase.cs
- SamlAttributeStatement.cs
- XmlStringTable.cs
- RtfToXamlLexer.cs
- KnownColorTable.cs
- CreateUserErrorEventArgs.cs
- ServiceOperationParameter.cs
- ClockController.cs
- WebPartTracker.cs