Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HtmlControls / HtmlInputFile.cs / 1305376 / HtmlInputFile.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlInputFile.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Globalization; using System.Web; using System.Web.UI; using System.Security.Permissions; ////// [ ValidationProperty("Value") ] public class HtmlInputFile : HtmlInputControl, IPostBackDataHandler { /* * Creates an intrinsic Html INPUT type=file control. */ ////// The ///class defines the /// methods, properties, and events for the control. This class allows /// programmatic access to the HTML <input type= file> element on the server. /// It provides access to the stream, as well as a useful SaveAs functionality /// provided by the /// property. /// /// This class only works if the /// HtmlForm.Enctype property is set to "multipart/form-data". /// Also, it does not maintain its /// state across multiple round trips between browser and server. If the user sets /// this value after a round trip, the value is lost. /// ////// public HtmlInputFile() : base("file") { } /* * Accept type property. */ ///Initializes a new instance of the ///class. /// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Accept { get { string s = Attributes["accept"]; return((s != null) ? s : String.Empty); } set { Attributes["accept"] = MapStringAttributeToString(value); } } /* * The property for the maximum characters allowed. */ ////// Gets /// or sets a comma-separated list of MIME encodings that /// can be used to constrain the file types that the browser lets the user /// select. For example, to restrict the /// selection to images, the accept value image/* should be specified. /// ////// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int MaxLength { get { string s = Attributes["maxlength"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["maxlength"] = MapIntegerAttributeToString(value); } } /* * PostedFile property. */ ////// Gets or sets the /// maximum length of the file path of the file to upload /// from the client machine. /// ////// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public HttpPostedFile PostedFile { get { return Context.Request.Files[RenderedNameAttribute];} } /* * The property for the width in characters. */ ///Gets access to the uploaded file specified by a client. ////// [ WebCategory("Appearance"), DefaultValue(-1), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Size { get { string s = Attributes["size"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["size"] = MapIntegerAttributeToString(value); } } // ASURT 122262 : The value property isn't submitted back to us when the a page // containing this control postsback, so required field validators are broken // (value would contain the empty string). To fix this, we return the filename. [ Browsable(false) ] public override string Value { get { HttpPostedFile postedFile = PostedFile; if (postedFile != null) { return postedFile.FileName; } return String.Empty; } set { // Throw here because setting the value on this tag has no effect on the // rendering behavior and since we're always returning the posted file's // filename, we don't want to get into a situation where the user // sets a value and does not get back that value. throw new NotSupportedException(SR.GetString(SR.Value_Set_Not_Supported, this.GetType().Name)); } } /* * Method of IPostBackDataHandler interface to process posted data. */ ///Gets or sets the width of the file-path text box that the /// browser displays when the ////// control is used on a page. bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { return false; } /* * Method of IPostBackDataHandler interface which is invoked whenever * posted data for a control has changed. RadioButton fires an * OnServerChange event. */ /// void IPostBackDataHandler.RaisePostDataChangedEvent() { RaisePostDataChangedEvent(); } protected virtual void RaisePostDataChangedEvent() { } /// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); // ASURT 35328: use multipart encoding if no encoding is currently specified HtmlForm form = Page.Form; if (form != null && form.Enctype.Length == 0) { form.Enctype = "multipart/form-data"; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //Raises the ///event. This method uses event arguments /// to pass the event data to the control. // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * HtmlInputFile.cs * * Copyright (c) 2000 Microsoft Corporation */ namespace System.Web.UI.HtmlControls { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Globalization; using System.Web; using System.Web.UI; using System.Security.Permissions; ////// [ ValidationProperty("Value") ] public class HtmlInputFile : HtmlInputControl, IPostBackDataHandler { /* * Creates an intrinsic Html INPUT type=file control. */ ////// The ///class defines the /// methods, properties, and events for the control. This class allows /// programmatic access to the HTML <input type= file> element on the server. /// It provides access to the stream, as well as a useful SaveAs functionality /// provided by the /// property. /// /// This class only works if the /// HtmlForm.Enctype property is set to "multipart/form-data". /// Also, it does not maintain its /// state across multiple round trips between browser and server. If the user sets /// this value after a round trip, the value is lost. /// ////// public HtmlInputFile() : base("file") { } /* * Accept type property. */ ///Initializes a new instance of the ///class. /// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public string Accept { get { string s = Attributes["accept"]; return((s != null) ? s : String.Empty); } set { Attributes["accept"] = MapStringAttributeToString(value); } } /* * The property for the maximum characters allowed. */ ////// Gets /// or sets a comma-separated list of MIME encodings that /// can be used to constrain the file types that the browser lets the user /// select. For example, to restrict the /// selection to images, the accept value image/* should be specified. /// ////// [ WebCategory("Behavior"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int MaxLength { get { string s = Attributes["maxlength"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["maxlength"] = MapIntegerAttributeToString(value); } } /* * PostedFile property. */ ////// Gets or sets the /// maximum length of the file path of the file to upload /// from the client machine. /// ////// [ WebCategory("Default"), DefaultValue(""), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public HttpPostedFile PostedFile { get { return Context.Request.Files[RenderedNameAttribute];} } /* * The property for the width in characters. */ ///Gets access to the uploaded file specified by a client. ////// [ WebCategory("Appearance"), DefaultValue(-1), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] public int Size { get { string s = Attributes["size"]; return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); } set { Attributes["size"] = MapIntegerAttributeToString(value); } } // ASURT 122262 : The value property isn't submitted back to us when the a page // containing this control postsback, so required field validators are broken // (value would contain the empty string). To fix this, we return the filename. [ Browsable(false) ] public override string Value { get { HttpPostedFile postedFile = PostedFile; if (postedFile != null) { return postedFile.FileName; } return String.Empty; } set { // Throw here because setting the value on this tag has no effect on the // rendering behavior and since we're always returning the posted file's // filename, we don't want to get into a situation where the user // sets a value and does not get back that value. throw new NotSupportedException(SR.GetString(SR.Value_Set_Not_Supported, this.GetType().Name)); } } /* * Method of IPostBackDataHandler interface to process posted data. */ ///Gets or sets the width of the file-path text box that the /// browser displays when the ////// control is used on a page. bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) { return LoadPostData(postDataKey, postCollection); } protected virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection) { return false; } /* * Method of IPostBackDataHandler interface which is invoked whenever * posted data for a control has changed. RadioButton fires an * OnServerChange event. */ /// void IPostBackDataHandler.RaisePostDataChangedEvent() { RaisePostDataChangedEvent(); } protected virtual void RaisePostDataChangedEvent() { } /// /// protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); // ASURT 35328: use multipart encoding if no encoding is currently specified HtmlForm form = Page.Form; if (form != null && form.Enctype.Length == 0) { form.Enctype = "multipart/form-data"; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.Raises the ///event. This method uses event arguments /// to pass the event data to the control.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- WebZone.cs
- LineSegment.cs
- UIHelper.cs
- WebPageTraceListener.cs
- SortFieldComparer.cs
- AsyncOperation.cs
- TrackBarDesigner.cs
- DataSourceSelectArguments.cs
- sitestring.cs
- PropertyContainer.cs
- WebPartDescriptionCollection.cs
- LocalizationParserHooks.cs
- BatchParser.cs
- BrowserDefinitionCollection.cs
- GeneralTransform3DCollection.cs
- XmlNamespaceMapping.cs
- XmlDataProvider.cs
- TextEndOfParagraph.cs
- SystemWebCachingSectionGroup.cs
- ChannelServices.cs
- ProvideValueServiceProvider.cs
- SafeEventHandle.cs
- DataServiceContext.cs
- SessionEndedEventArgs.cs
- RegisteredHiddenField.cs
- SystemIPInterfaceStatistics.cs
- DataRowCollection.cs
- BidOverLoads.cs
- TypeConvertions.cs
- HttpHandlerActionCollection.cs
- FontNamesConverter.cs
- CodeGenerator.cs
- SQLBytes.cs
- ObjectDataSourceMethodEventArgs.cs
- TextTrailingCharacterEllipsis.cs
- Logging.cs
- ScalarType.cs
- Track.cs
- RowUpdatedEventArgs.cs
- TextSelection.cs
- HyperLinkDataBindingHandler.cs
- SoapReflectionImporter.cs
- FileDialogPermission.cs
- SafeFileMappingHandle.cs
- FixedDSBuilder.cs
- XmlElementAttribute.cs
- ArrayHelper.cs
- TextEndOfParagraph.cs
- ProxyFragment.cs
- ObjectListGeneralPage.cs
- ArrayMergeHelper.cs
- DataTable.cs
- SelectionProviderWrapper.cs
- UnsafeNativeMethods.cs
- ComponentEditorPage.cs
- DiscoveryClientChannelBase.cs
- FileSystemEventArgs.cs
- NamespaceList.cs
- WarningException.cs
- CodeAccessSecurityEngine.cs
- ToolboxDataAttribute.cs
- EditBehavior.cs
- HttpModuleCollection.cs
- ListenerBinder.cs
- Window.cs
- QilList.cs
- MemberRelationshipService.cs
- FormViewUpdateEventArgs.cs
- IntegrationExceptionEventArgs.cs
- DesignerForm.cs
- SchemaImporter.cs
- DbDeleteCommandTree.cs
- SQLConvert.cs
- AdornedElementPlaceholder.cs
- FileDialog.cs
- ServicePoint.cs
- DesignOnlyAttribute.cs
- AbandonedMutexException.cs
- M3DUtil.cs
- Accessors.cs
- HierarchicalDataSourceDesigner.cs
- SkewTransform.cs
- CompiledXpathExpr.cs
- DataGridViewLayoutData.cs
- AsymmetricAlgorithm.cs
- SplitterPanel.cs
- ObjectDataProvider.cs
- ClientRoleProvider.cs
- TreeNodeBinding.cs
- storepermissionattribute.cs
- CodeAttributeArgument.cs
- documentsequencetextview.cs
- DataGridViewButtonCell.cs
- SafeEventLogReadHandle.cs
- Misc.cs
- Choices.cs
- AuthenticationModuleElement.cs
- HashStream.cs
- TextSelectionHighlightLayer.cs
- ConnectionsZoneAutoFormat.cs