html - What exactly is the HTML5 <command> tag and what is the browser support -

-

i've read html5 spec <command> , found information on element vague.

i've tried out , found not working in chrome (latest version) , is working on safari (even older ones), sorry no ff (don't shoot me please) - mac test.

i can't understand use of element or if i'm using correctly.

i thank in advance clarification it!

it works on firefox 3.6.13 windows way.

the command element meant encapsulate can do. can rendered within menu (since menu presents items can invoke).

the idea

it provides abstraction layer between ui , commands, can make multiple ui elements refer same command. gives flexibility of having 1 command element, rendered in menu, invoked via url in middle of page button @ bottom of page. disabling command disables access paths (url/button/menu) action behind command.

where @ - of 26 jan 2010

there scarce information how linking multiple elements work (since browsers have started implementing it!) 1 of intentions.

at present moment, documented usage provide semantically unique tag specify (without using <input> or <button> elements) command within <menu>, thereby allowing "real" menu rendering browser (when implemented).


Comments

Post a Comment

Popular posts from this blog

java - SNMP4J General Variable Binding Error -

-
i trying use snmp4j snmp bulkget. when ever use snmp4j make call returned responseevent error says "general variable binding error" , data returned equal null. to debug: print out, console, exact oid , version number using in snmp4j. use printed out data snmpwalk on command line. valid results. know sending snmp4j correct pdu correct oid, version number, max repititions, etc. i have used snmp4j , code wrote succesffuly monitor other devices years. don't know different time. leaving me stumped. why "general variable binding error?" causes error? ideas debug? can reproduced? if so, first action should using wireshark or microsoft network monitor capture network packets. my guess agent gives generr response, not surprising, http://www.ietf.org/rfc/rfc1157.txt
Read more

windows - Python Service Installation - "Could not find PythonClass entry" -

-
i working on building python service. inducing error, not sure inducing it. ps c:\...> python .\file.py debug debugging service myservice - press ctrl+c stop. error 0xc00000f4 - not find service's pythonclass entry in registry error 1814 - specified resource name cannot found in image file. error 0xc0000080 - not locate module name in python class string (ie, no '.') this error coming pythonservicemessages.mc in pythonwin32. it turns out error result caused exception being thrown , python script dying off.
Read more

Determine if a XmlNode is empty or null in C#? -

-
the following code takes xmlnode data type , populates dataset object xmlnode content. write dataset's content file. public void populatedataset(xmlnode node) { xmlnodereader reader = new xmlnodereader(node); dataset ds = new dataset(); ds.readxml(reader); system.guid guid = system.guid.newguid(); string name = string.format("{0}{1}_{2}.xml", utility.xmloutputpath, utility.xmloutputfilename, guid.tostring()); //need write "node empty" file if xmlnode object empty of null ds.writexml(name, xmlwritemode.ignoreschema); } the problem encountered 1 scenario not write content file. how determine if xmlnode object null or empty? you can check if node parameter null or has innertext or innerxml properties null or empty, when enter method before creating xmlnodereader .
Read more