# HTML Attributes

## Content



**RichTextBox for WPF** supports several HTML 4 attribute. The following table lists HTML attributes by name and element and notes whether they are supported by **RichTextBox for WPF**.

|   **Name**   |   **Elements**   |   **Supported**   |
| --- | --- | --- |
|   abbr   |   TD, TH   |   No   |
|   accept-charset   |   FORM   |   No   |
|   accept   |   FORM, INPUT   |   No   |
|   accesskey   |   A, AREA, BUTTON, INPUT, LABEL, LEGEND, TEXTAREA   |   No   |
|   action   |   FORM   |   No   |
|   align   |   CAPTION   |   No   |
|   align   |   APPLET, IFRAME, IMG, INPUT, OBJECT   |   No   |
|   align   |   LEGEND   |   No   |
|   align   |   TABLE   |   No   |
|   align   |   HR   |   No   |
|   align   |   DIV, H1, H2, H3, H4, H5, H6, P   |   Yes   |
|   align   |   COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR   |   No   |
|   alink   |   BODY   |   No   |
|   alt   |   APPLET   |   No   |
|   alt   |   AREA, IMG   |   No   |
|   alt   |   INPUT   |   No   |
|   archive   |   APPLET   |   No   |
|   archive   |   OBJECT   |   No   |
|   axis   |   TD, TH   |   No   |
|   background   |   BODY   |   No   |
|   bgcolor   |   TABLE   |   Yes   |
|   bgcolor   |   TR   |   Yes   |
|   bgcolor   |   TD, TH   |   Yes   |
|   bgcolor   |   BODY   |   Yes   |
|   border   |   TABLE   |   Yes   |
|   border   |   IMG, OBJECT   |   Yes   |
|   cellpadding   |   TABLE   |   No   |
|   cellspacing   |   TABLE   |   Yes   |
|   char   |   COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR   |   No   |
|   charoff   |   COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR   |   No   |
|   charset   |   A, LINK, SCRIPT   |   No   |
|   checked   |   INPUT   |   No   |
|   cite   |   BLOCKQUOTE, Q   |   No   |
|   cite   |   DEL, INS   |   No   |
|   class   |   All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, STYLE, TITLE   |   Yes   |
|   classid   |   OBJECT   |   No   |
|   clear   |   BR   |   No   |
|   code   |   APPLET   |   No   |
|   codebase   |   OBJECT   |   No   |
|   codebase   |   APPLET   |   No   |
|   codetype   |   OBJECT   |   No   |
|   color   |   BASEFONT, FONT   |   No   |
|   cols   |   FRAMESET   |   No   |
|   cols   |   TEXTAREA   |   No   |
|   colspan   |   TD, TH   |   Yes   |
|   compact   |   DIR, DL, MENU, OL, UL   |   No   |
|   content   |   META   |   No   |
|   coords   |   AREA   |   No   |
|   coords   |   A   |   No   |
|   data   |   OBJECT   |   No   |
|   datetime   |   DEL, INS   |   No   |
|   declare   |   OBJECT   |   No   |
|   defer   |   SCRIPT   |   No   |
|   dir   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FRAME, FRAMESET, IFRAME, PARAM, SCRIPT   |   No   |
|   dir   |   BDO   |   No   |
|   disabled   |   BUTTON, INPUT, OPTGROUP, OPTION, SELECT, TEXTAREA   |   No   |
|   enctype   |   FORM   |   No   |
|   face   |   BASEFONT, FONT   |   Yes   |
|   for   |   LABEL   |   No   |
|   frame   |   TABLE   |   Yes   |
|   frameborder   |   FRAME, IFRAME   |   No   |
|   headers   |   TD, TH   |   No   |
|   height   |   IFRAME   |   No   |
|   height   |   TD, TH   |   No   |
|   height   |   IMG, OBJECT   |   Yes   |
|   height   |   APPLET   |   No   |
|   href   |   A, AREA, LINK   |   Yes   |
|   href   |   BASE   |   No   |
|   hreflang   |   A, LINK   |   No   |
|   hspace   |   APPLET, IMG, OBJECT   |   Yes   |
|   http-equiv   |   META   |   No   |
|   id   |   All elements but BASE, HEAD, HTML, META, SCRIPT, STYLE, TITLE   |   Yes   |
|   ismap   |   IMG, INPUT   |   No   |
|   label   |   OPTION   |   No   |
|   label   |   OPTGROUP   |   No   |
|   lang   |   All elements but APPLET, BASE, BASEFONT, BR, FRAME, FRAMESET, IFRAME, PARAM, SCRIPT   |   No   |
|   language   |   SCRIPT   |   No   |
|   link   |   BODY   |   No   |
|   longdesc   |   IMG   |   No   |
|   longdesc   |   FRAME, IFRAME   |   No   |
|   marginheight   |   FRAME, IFRAME   |   No   |
|   marginwidth   |   FRAME, IFRAME   |   No   |
|   maxlength   |   INPUT   |   No   |
|   media   |   STYLE   |   No   |
|   media   |   LINK   |   No   |
|   method   |   FORM   |   No   |
|   multiple   |   SELECT   |   No   |
|   name   |   BUTTON, TEXTAREA   |   No   |
|   name   |   APPLET   |   No   |
|   name   |   SELECT   |   No   |
|   name   |   FORM   |   No   |
|   name   |   FRAME, IFRAME   |   No   |
|   name   |   IMG   |   No   |
|   name   |   A   |   No   |
|   name   |   INPUT, OBJECT   |   No   |
|   name   |   MAP   |   No   |
|   name   |   PARAM   |   No   |
|   name   |   META   |   No   |
|   nohref   |   AREA   |   No   |
|   noresize   |   FRAME   |   No   |
|   noshade   |   HR   |   No   |
|   nowrap   |   TD, TH   |   No   |
|   object   |   APPLET   |   No   |
|   onblur   |   A, AREA, BUTTON, INPUT, LABEL, SELECT, TEXTAREA   |   No   |
|   onchange   |   INPUT, SELECT, TEXTAREA   |   No   |
|   onclick   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   ondblclick   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onfocus   |   A, AREA, BUTTON, INPUT, LABEL, SELECT, TEXTAREA   |   No   |
|   onkeydown   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onkeypress   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onkeyup   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onload   |   FRAMESET   |   No   |
|   onload   |   BODY   |   No   |
|   onmousedown   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onmousemove   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onmouseout   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onmouseover   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onmouseup   |   All elements but APPLET, BASE, BASEFONT, BDO, BR, FONT, FRAME, FRAMESET, HEAD, HTML, IFRAME, ISINDEX, META, PARAM, SCRIPT, STYLE, TITLE   |   No   |
|   onreset   |   FORM   |   No   |
|   onselect   |   INPUT, TEXTAREA   |   No   |
|   onsubmit   |   FORM   |   No   |
|   onunload   |   FRAMESET   |   No   |
|   onunload   |   BODY   |   No   |
|   profile   |   HEAD   |   No   |
|   prompt   |   ISINDEX   |   No   |
|   readonly   |   TEXTAREA   |   No   |
|   readonly   |   INPUT   |   No   |
|   rel   |   A, LINK   |   No   |
|   rev   |   A, LINK   |   No   |
|   rows   |   FRAMESET   |   No   |
|   rows   |   TEXTAREA   |   No   |
|   rowspan   |   TD, TH   |   Yes   |
|   rules   |   TABLE   |   Yes   |
|   scheme   |   META   |   No   |
|   scope   |   TD, TH   |   No   |
|   scrolling   |   FRAME, IFRAME   |   No   |
|   selected   |   OPTION   |   No   |
|   shape   |   AREA   |   No   |
|   shape   |   A   |   No   |
|   size   |   HR   |   No   |
|   size   |   FONT   |   No   |
|   size   |   INPUT   |   No   |
|   size   |   BASEFONT   |   No   |
|   size   |   SELECT   |   No   |
|   span   |   COL   |   No   |
|   span   |   COLGROUP   |   No   |
|   src   |   SCRIPT   |   No   |
|   src   |   INPUT   |   No   |
|   src   |   FRAME, IFRAME   |   No   |
|   src   |   IMG   |   No   |
|   standby   |   OBJECT   |   No   |
|   start   |   OL   |   Yes   |
|   style   |   All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, STYLE, TITLE   |   Yes   |
|   summary   |   TABLE   |   No   |
|   tabindex   |   A, AREA, BUTTON, INPUT, OBJECT, SELECT, TEXTAREA   |   No   |
|   target   |   A, AREA, BASE, FORM, LINK   |   No   |
|   text   |   BODY   |   No   |
|   title   |   All elements but BASE, BASEFONT, HEAD, HTML, META, PARAM, SCRIPT, TITLE   |   Yes   |
|   type   |   A, LINK   |   No   |
|   type   |   OBJECT   |   No   |
|   type   |   PARAM   |   No   |
|   type   |   SCRIPT   |   No   |
|   type   |   STYLE   |   No   |
|   type   |   INPUT   |   No   |
|   type   |   LI   |   No   |
|   type   |   OL   |   No   |
|   type   |   UL   |   No   |
|   type   |   BUTTON   |   No   |
|   usemap   |   IMG, INPUT, OBJECT   |   No   |
|   valign   |   COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR   |   Yes   |
|   value   |   INPUT   |   No   |
|   value   |   OPTION   |   No   |
|   value   |   PARAM   |   No   |
|   value   |   BUTTON   |   No   |
|   value   |   LI   |   No   |
|   valuetype   |   PARAM   |   No   |
|   version   |   HTML   |   No   |
|   vlink   |   BODY   |   No   |
|   vspace   |   APPLET, IMG, OBJECT   |   Yes   |
|   width   |   HR   |   No   |
|   width   |   IFRAME   |   No   |
|   width   |   IMG, OBJECT   |   Yes   |
|   width   |   TABLE   |   No   |
|   width   |   TD, TH   |   No   |
|   width   |   APPLET   |   No   |
|   width   |   COL   |   Yes   |
|   width   |   COLGROUP   |   No   |
|   width   |   PRE   |   No   |