windows phone 8 - Telerik RadDataBoundListBox Reset -

-

how can reset or delete old data in telerik raddataboundlistbox json parse , display in raddataboundlistbox

raddataboundlistbox load old data every time, if click button load new data want delete or reset old data becouse every time displaying old data

public void getmaindata()         {              string mainurldata = "http://www.mydomain.com/app.json";              webclient wc = new webclient();             wc.downloadstringcompleted += wc_downloadstringcompleted;             wc.downloadstringasync(new uri(mainurldata));            }           void wc_downloadstringcompleted(object sender, downloadstringcompletedeventargs e)         {             try             {                 string result = e.result.tostring();                 jsonconvert.populateobject(result, populatedata);                 newslist.itemssource = populatedata;             }        }

little late, hope helps..

with mvvmlight

use httpclient:

    public async task<observablecollection<t>> getall()     {         var client = new httpclient();          client.defaultrequestheaders.accept.add(mediatypewithqualityheadervalue.parse(jsonmediatype));         //if (usetoken)         //client.defaultrequestheaders.authorization = new authenticationheadervalue("bearer", token);          var json = await client.getstringasync(string.format("{0}{1}{2}", apiurl, addresssuffix, apikey)).configureawait(false);          debug.writeline(json);          jobject o = jobject.parse(json);          debug.writeline(o);          return await task.factory.startnew(() => jsonconvert.deserializeobject<observablecollection<t>>(o[modulename].tostring()));     }

itemsource:

private observablecollection<ticket> _mytickets;      public observablecollection<ticket> mytickets     {                 {             return _mytickets;         }         set         {             _mytickets = value;              raisepropertychanged(() => mytickets);         }     }

telerik radboundlistbox:

<telerikprimitives:raddataboundlistbox                  x:name="raddataboundlistbox"                 itemssource="{binding ticketlist}"                 itemtemplate="{staticresource listboxitemtemplate}"                 itemcontainerstyle="{staticresource itemcontainerstyle}"                 selecteditem="{binding selectedticket, mode=twoway}"                 horizontalalignment="stretch"                 verticalalignment="stretch"                 height="750"                 scrollviewer.verticalscrollbarvisibility="auto"                 useoptimizedmanipulationrouting="false"                 emptycontent="laden..."                 ispulltorefreshenabled="true">             <i:interaction.triggers>                 <i:eventtrigger eventname="refreshrequested">                     <cmd:eventtocommand                          command="{binding refreshrequested}"/>                 </i:eventtrigger>             </i:interaction.triggers>         </telerikprimitives:raddataboundlistbox>

refresh command:

    private relaycommand _refreshcommand;      public relaycommand refreshrequested     {                 {             return _refreshcommand                 ?? (_refreshcommand = new relaycommand(                                       () =>                                       {                                           executerefreshcommand();                                       }));         }     }  public async void executerefreshcommand()     {             var tickets = await _dataservice.getall();              if (tickets != null)             {                 _ticketlist.clear();                  foreach (var ticket in tickets)                 {                     _ticketlist.add(ticket);                     debug.writeline(ticket.name);                 }                  messenger.default.send(new handleviewmessage() { stoppulltorefresh = true });                  raisepropertychanged(() => ticketlist);             }     }

Comments

Post a Comment

Popular posts from this blog

C# random value from dictionary and tuple -

-
i have following code, , need random item contains string "region_1" dictionary. public static dictionary<int, tuple<string, int, currencytype>> itemarray = new dictionary<int, tuple<string, int, currencytype>>() { { 0xb3e, new tuple<string, int, currencytype>("region_1", 1500, currencytype.fame) } }; public static int generateitemid(string shopid) { var generateditem = itemarray.elementat(new random().next(0, itemarray.count)).key; } how select this? it's not possible efficiently... first create static random @ class level... prevent non-random behaviour if run query on short period of time... (it's seeded discrete clock) static random rnd = new random(); then: var item = itemarray.values .where(t => t.item1 == shopid) .orderby(_ => rnd.next()) .firstordefault()
Read more

.htaccess - htaccess convert request to clean url and add slash at the end of the url -

-
ok , searched more 4 days , more 20 posts here in stach or in websites without kind of success first here htaccess file rewriteengine on rewriterule ^([a-za-z0-9_]+)/?$ index.php?page=$1 [nc] rewriterule ^([a-za-z0-9_]+)\/([a-za-z0-9_]+)\/?$ index.php?page=$1&action=$2 [nc] i tried many codes 1 worked me can call request , works me www.example.com/pagename => www.example.com/index.php?page=pagename here questions , please provide me information "in detail" understand code well 1- how convert request automatically www.example.com/index.php?page=pagename www.example.com/pagename 2- if tried add slash @ end shows me page without images or styling mean www.example.com/pagename => works www.example.com/pagename/ => doesn't work that's :) for first part need 301 rule this: rewritecond %{the_request} /index\.php\?page=([^\s&]+) [nc] rewriterule ^ /%1? [r=301,l] for second part use absolute path in css, js, images files r...
Read more

cgi - How do I interpret URLs without extension as files rather than missing directories in nginx? -

-
so i'm trying install zoneminder , have run under nginx, has few compiled files need run using fast-cgi. these files lack extension. if file has extension, there no issue , nginx interprets file , return 404 if can't find it. if has no extension, assume it's directory , return 404 when can't find sort of index page. here have now: # security camera domain. server { listen 888; server_name mydomain.com; root /srv/http/zm; # enable php support. include php.conf; location / { index index.html index.htm index.php; } # enable cgi support. location ~ ^/cgi-bin/(.+)$ { alias /srv/cgi-bin/zm/; fastcgi_pass unix:/run/fcgiwrap.sock; fastcgi_param script_filename $document_root/$1; include fastcgi.conf; } } the idea is, under cgi-bin directory goes through fastcgi pipe. any idea on howi can fix this? upon closer inspection, realized zoneminder has 2 cgi sc...
Read more