Table of Contents
  • Getting Started
  • EO.Pdf
  • EO.Web
  • EO.WebBrowser
  • EO.Wpf
  • Common Topics
  • Reference
    • .NET API Reference
      • EO.Base
      • EO.Base.UI
      • EO.Extensions
      • EO.Pdf
      • EO.Pdf.Acm
      • EO.Pdf.Contents
      • EO.Pdf.Drawing
      • EO.Pdf.Mvc
      • EO.Web
        • EO.Web
        • Classes
          • AJAXPostedFile Class
          • AJAXPostedFileList Class
          • AJAXUploader Class
          • AJAXUploaderProgressDialog Class
          • ASPXToPDF Class
          • BaseMenuItem Class
          • BaseMenuItemGroup Class
          • BaseNavigator Class
          • BorderImages Class
          • ButtonColumn Class
          • Calendar Class
          • CalendarDay Class
          • Callback Class
          • CallbackEventArgs Class
          • CallbackPanel Class
          • CallbackTrigger Class
          • CallbackTriggerCollection Class
          • Captcha Class
          • CheckBoxColumn Class
          • ClientTemplate Class
          • ColorPicker Class
          • ComboBox Class
          • Consts Class
          • ContextMenu Class
          • Control Class
          • ControlFrame Class
          • CustomColumn Class
          • CustomItem Class
          • DataBinding Class
          • DataBindingCollection Class
          • DataBoundControl Class
          • DateCollection Class
          • DatePicker Class
          • DateTimeColumn Class
          • DayRenderEventArgs Class
          • DefaultClientTemplateAttribute Class
          • DeleteCommandColumn Class
          • DesignOptions Class
          • Dialog Class
          • Downloader Class
          • DownloadEventArgs Class
          • DynamicDownloadContent Class
          • EditableLabel Class
          • EditCommandColumn Class
          • Editor Class
          • EditorDialogContent Class
          • EditorDialogContentCollection Class
          • EditorDialogTemplate Class
          • EditorDialogTemplateCollection Class
          • EditorStyle Class
          • EditorStyleCollection Class
          • EditorTabButtonStyles Class
          • Effect Class
          • ElementPaddings Class
          • ElementStyle Class
          • Emoticon Class
          • FileExplorer Class
          • FileExplorerEventArgs Class
          • FileExplorerHolder Class
          • Floater Class
          • Flyout Class
          • FontInfo Class
          • Grid Class
          • GridCell Class
          • GridCellCollection Class
          • GridColumn Class
          • GridColumnCollection Class
          • GridColumnEventArgs Class
          • GridCommandEventArgs Class
          • GridItem Class
          • GridItemCollection Class
          • GridItemEventArgs Class
          • GridItemStyleSet Class
          • GridItemStyleSetCollection Class
          • ImageButtonInfo Class
          • ImageInfo Class
          • ImageZoom Class
          • InlineStyle Class
          • ListBox Class
          • ListBoxItem Class
          • ListBoxItemCollection Class
          • ListBoxItemContainer Class
          • ListItemEventArgs Class
          • LookItemCollection Class
          • MaskedEdit Class
          • MaskedEditColumn Class
          • MaskedEditSegment Class
          • MaskedEditSegmentCollection Class
          • MaskedEditValidator Class
          • Menu Class
          • MenuGroup Class
          • MenuItem Class
          • MenuItemCollection Class
          • MenuItemImages Class
          • MenuLookItemCollection Class
          • MsgBox Class
          • MsgBoxButton Class
          • MultiPage Class
          • MultiPageEventArgs Class
          • NavigationItem Class
          • NavigationItemCollection Class
          • NavigationItemEventArgs Class
          • NavigationItemGroup Class
          • NavigationItemImages Class
          • NavigationItemText Class
          • PageContextMenu Class
          • PageView Class
          • PageViewCollection Class
          • PathMapping Class
          • PathMappingCollection Class
          • PopupCalendar Class
          • ProgressBar Class
          • ProgressTaskEventArgs Class
          • RangeSlider Class
          • Rating Class
          • RowNumberColumn Class
          • Runtime Class
          • ScriptEvent Class
          • ScriptManager Class
          • Slide Class
          • SlideItem Class
          • SlideItemCollection Class
          • SlideItemEventArgs Class
          • SlideMenu Class
          • Slider Class
          • SliderBase Class
          • SliderLabel Class
          • SliderLabelCollection Class
          • SpecialLookIDs Class
          • SpellChecker Class
          • SpellCheckerDialog Class
          • SpellCheckerEventArgs Class
          • Splitter Class
          • SplitterPane Class
          • StaticColumn Class
          • TabItem Class
          • TabItemCollection Class
          • TabItemGroup Class
          • TabLookItemCollection Class
          • TabStrip Class
          • TemplatedPopup Class
          • TextBoxColumn Class
          • ToolBar Class
          • ToolBarEventArgs Class
          • ToolBarItem Class
          • ToolBarItemCollection Class
          • ToolTip Class
          • TreeLookNodeCollection Class
          • TreeNode Class
          • TreeNodeCheckStateChangedEventArgs Class
          • TreeNodeCollection Class
          • TreeNodeGroup Class
          • TreeNodeMovedEventArgs Class
          • TreeNodeRenameEventArgs Class
          • TreeView Class
          • TreeViewCheckBoxImages Class
          • TreeViewLineImages Class
          • TreeViewMargin Class
          • WebControl Class
          • WebControlBase Class
        • Structures
        • Enumerations
        • Delegates
      • EO.WebBrowser
      • EO.WebBrowser.DOM
      • EO.WebEngine
      • EO.WinForm
      • EO.Wpf
      • EO.Wpf.Gauge
      • EO.Wpf.Gauge.Shapes
      • EO.Wpf.Primitives
      • EO.Wpf.Themes.Aero
      • EO.Wpf.Themes.Classic
      • EO.Wpf.Themes.Luna
      • EO.Wpf.Themes.Metro
      • EO.Wpf.Themes.Royale
    • JavaScript API Reference
Table of Contents
Captcha Members

The Captcha class exposes the following members.

Constructors
Name Description
Captcha(); Initializes a new instance of the Captcha control.
Properties
Name Description
AccessKey (inherited from WebControl) 
Adapter (inherited from Control) 
AppRelativeTemplateSourceDirectory (inherited from Control) 
Attributes (inherited from WebControl) 
AudioLinkHtml Gets or sets the HTML for the audio link button.
AudioLinkStyle Gets or sets the style properties for the audio link button.
BackColor (inherited from WebControl) 
BorderColor (inherited from WebControl) 
BorderImages (inherited from WebControl) Provides a list of images used to create customized borders for the control.
BorderStyle (inherited from WebControl) 
BorderWidth (inherited from WebControl) 
ChildControlsCreated (inherited from Control) 
ClientID (inherited from Control) 
ClientIDMode (inherited from Control) 
ClientIDSeparator (inherited from Control) 
ClientSideOnError (inherited from WebControlBase) Gets or sets the name of the JavaScript function that is called when an error occurs on client side.
ClientSideOnEvalVar (inherited from WebControl) Specifies the name of client side JavaScript function which is called when a variable needs to be evaluated in a client template.
ClientSideOnLoad (inherited from WebControlBase) Gets or sets the name of the JavaScript function that is called when the control is loaded on the client side.
ClientSideOnMessage (inherited from WebControlBase) Gets or sets the name of the JavaScript function that is called when the control displays a message.
ClientSideOnUnload (inherited from WebControlBase) Gets or sets the name of the JavaScript function that is called when the control is unloaded on the client side.
Context (inherited from Control) 
Controls (inherited from Control) 
ControlSkinID (inherited from WebControl) Specifies the ID of the skin used by this control.
ControlStyle (inherited from WebControl) 
ControlStyleCreated (inherited from WebControl) 
CssBlock (inherited from WebControl) Specifies the CSS style definition used by this control.
CssClass (inherited from WebControl) 
CssFile (inherited from WebControl) Specifies the path of an external CSS file that provides CSS styles used by this control.
DataItemContainer (inherited from Control) 
DataKeysContainer (inherited from Control) 
DesignMode (inherited from Control) 
DesignOptions (inherited from WebControl) Contains options used for design time preview.
Enabled (inherited from WebControl) 
EnableKeyboardNavigation (inherited from WebControl) Gets or sets a value indicating whether keyboard navigation should be enabled.
EnableTheming (inherited from WebControl) 
EnableViewState (inherited from Control) 
ErrorMessage Gets or sets the error message to be displayed when user input is invalid.
ErrorMessageStyle Gets or sets the style properties for the error message.
Events (inherited from Control) 
Font (inherited from WebControl) 
ForceSSL (inherited from WebControl) Gets or sets a value indicating whether the server should work as if it were always running on a secure server (https).
ForeColor (inherited from WebControl) 
HasAttributes (inherited from WebControl) 
HasChildViewState (inherited from Control) 
Height (inherited from WebControl) 
ID (inherited from Control) 
IdSeparator (inherited from Control) 
ImageAlternativeText Gets or sets the CAPTCHA image alternative text.
ImageBackColor Gets or sets the background color for the CAPTCHA image.
ImageBaseDirectory (inherited from WebControl) Gets or sets the folder that contains images for the control.
ImageHeight Gets or sets the CAPTCHA image height.
ImageLifeSpan Gets or sets the image life span in seconds.
ImageNoiseLevel Gets or sets the amount of background noise in the CAPTCHA image.
ImageStorage Gets or sets where image should be stored.
ImageStyle Gets or sets the style properties for the CAPTCHA image.
ImageWidth Gets or sets the CAPTCHA image width.
IsChildControlStateCleared (inherited from Control) 
IsEnabled (inherited from WebControl) 
IsTrackingViewState (inherited from Control) 
IsValid Gets or sets whether user input is valid.
IsViewStateEnabled (inherited from Control) 
LineColor Gets or sets color of the lines in the CAPTCHA image.
LineNoiseLevel Gets or sets the complexity level of the lines in the image.
LoadViewStateByID (inherited from Control) 
NamingContainer (inherited from Control) 
Parent (inherited from Control) 
PromptHtml Gets or sets the prompt text.
PromptStyle Gets or sets the style properties for the prompt text.
RefreshLinkHtml Gets or sets the HTML for the refresh link button.
RefreshLinkStyle Gets or sets the style properties for the refresh link button.
RenderingCompatibility (inherited from Control) 
RightToLeft (inherited from WebControl) Gets or sets a value indicating whether the control should renders as right to left.
Shortcut (inherited from WebControl) Get a Shortcut object through which you can get or set the keyboard short cut for this control.
Site (inherited from Control) 
SkinID (inherited from WebControl) 
Style (inherited from WebControl) 
SupportsDisabledAttribute (inherited from WebControl) 
TabIndex (inherited from WebControl) 
TagKey (inherited from WebControl) 
TagName (inherited from WebControl) 
TemplateControl (inherited from Control) 
TemplateSourceDirectory (inherited from Control) 
Text Gets the current CAPTCHA text.
TextBoxStyle Gets or sets the style properties for the textbox.
TextCharSet Gets or sets the character set of the text in the CAPTCHA image.
TextColor Gets or sets color of the text in the CAPTCHA image.
TextFontFamily Gets or sets the font name used to generate text in the CAPTCHA image.
TextLength Gets or sets the text length.
TextNoiseLevel Gets or sets the warp level of the text in the image.
ToolTip (inherited from WebControl) 
UniqueID (inherited from Control) 
ValidateRequestMode (inherited from Control) 
ValidationGroup Gets or sets the group of controls for which this control causes validation when it posts back to the server.
ViewState (inherited from Control) 
ViewStateIgnoresCase (inherited from Control) 
ViewStateMode (inherited from Control) 
Visible (inherited from Control) 
Width (inherited from WebControl) 
Methods
Name Description
AddAttributesToRender (inherited from WebControl) 
AddedControl (inherited from Control) 
AddParsedSubObject (inherited from Control) 
ApplyStyle (inherited from WebControl) 
ApplyStyleSheetSkin (inherited from Control) 
BeginRenderTracing (inherited from Control) 
BuildProfileTree (inherited from Control) 
ClearCachedClientID (inherited from Control) 
ClearChildControlState (inherited from Control) 
ClearChildState (inherited from Control) 
ClearChildViewState (inherited from Control) 
ClearEffectiveClientIDMode (inherited from Control) 
CopyBaseAttributes (inherited from WebControl) 
CreateControlCollection (inherited from Control) 
CreateControlStyle (inherited from WebControl) 
DataBind (inherited from Control)Overloaded.  
DataBind (inherited from Control)Overloaded.  
DataBindChildren (inherited from Control) 
Dispose (inherited from Control) 
EndRenderTracing (inherited from Control) 
EnsureChildControls (inherited from Control) 
EnsureID (inherited from Control) 
Equals (inherited from Object) 
Finalize (inherited from Object) 
FindControl (inherited from Control)Overloaded.  
FindControl (inherited from Control)Overloaded.  
Focus (inherited from Control) 
GetDesignModeState (inherited from Control) 
GetHashCode (inherited from Object) 
GetRouteUrl (inherited from Control)Overloaded.  
GetType (inherited from Object) 
GetUniqueIDRelativeTo (inherited from Control) 
HasControls (inherited from Control) 
HasEvents (inherited from Control) 
IsLiteralContent (inherited from Control) 
LoadControlState (inherited from Control) 
MapPathSecure (inherited from Control) 
MemberwiseClone (inherited from Object) 
MergeStyle (inherited from WebControl) 
OnBubbleEvent (inherited from Control) 
OnDataBinding (inherited from Control) 
OnUnload (inherited from Control) 
OpenFile (inherited from Control) 
RaiseBubbleEvent (inherited from Control) 
RemovedControl (inherited from Control) 
RenderBeginTag (inherited from WebControl) 
RenderChildren (inherited from Control) 
RenderContents (inherited from WebControl) 
RenderControl (inherited from Control)Overloaded.  
RenderControl (inherited from Control)Overloaded.  
RenderEndTag (inherited from WebControl) 
Reset Force the Captcha control to generate a new image.
ResolveAdapter (inherited from Control) 
ResolveClientUrl (inherited from Control) 
ResolveUrl (inherited from Control) 
SaveControlState (inherited from Control) 
SetDesignModeState (inherited from Control) 
SetRenderMethodDelegate (inherited from Control) 
SetTraceData (inherited from Control)Overloaded.  
ToString (inherited from Object) 
Validate Performs validation on the associated input control and updates the IsValid property.
See Also