ZK Component with independent columns -

-

i new zk framework[newbie] version 5.0.8 m.v.c approach trying implement component columns independent each other.... wanna able represent data on 2 columns , able respond click on each column

something like

-----------------------------------   company----company    oracle    ibm    microsoft xerox    hp        apple  -----------------------------------

if click ibm want not click oracle.....[in same component mean dont want create 2 grid or 2 listbox or else]

is possible? lot.

it's not clear need in terms of independence here. looking separation in terms of data model or want different event listeners each rendered cell?

regarding event listeners, it's easy attach listeners you'd like. in zk, htmlbasedcomponent 1 of common root components , support onclick, ondoubleclick, onrightclick, , more.

as these zk components being created dynamically, can't wire event listeners @listen annotation. problem don't have id cells in advance.

instead, need programmatically create eventlistener render.

// in rowrenderer  public void render(row row, data data, int index) {     label column1 = new label(data.getone());     label column2 = new label(data.gettwo());     column1.setparent(row);     column2.setparent(row);     column1.addeventlistener(events.on_click, new eventlistener<event>() {         public void onevent(event event) {             // handle event         }     });     column2.addeventlistener(events.on_click, new eventlistener<event>() {         public void onevent(event event) {             // handle event         }     }); }

note implemented here, create new eventlistener every cell rendered. not efficient if can make eventlistener stateless , attach necessary data label itself, can save lot of computation.

regarding separation of code, if data model column oriented rather row, won't find standard zk component caters this. say, components grid , listbox rendered rows starting @ top using rowrenderers , like. if problem, you'll want roll own component. lot easier might sound.

public class columngrid extends hlayout {      private columnlistmodel model;     private columnrenderer<? extends component> renderer;      public void setmodel(columnlistmodel model) {         this.model = model;     }      public void setrenderer(columnrenderer renderer) {         this.renderer = renderer;     }      public void oncreate() {         (int i=0; i<model.size(); i++) {             column col = new column();             appendchild(col);             renderer.render(col, model.getelementat(i), i);         }     }  }  public class column extends vlayout {}  public interface columnrenderer<t extends component> {      render(column column, t data, int index);  }

it's skeleton, idea.

you can use in zul files:

<?component name="colgrid" class="com.sean.is.cool.columngrid" ?> <colgrid model="mymodel" renderer="mycolrenderer"/>

Popular posts from this blog

How to calculate SNR of signals in MATLAB? -

-
i've encountered simple, yet fundamental problem on calculating snr: there several signals : s1 = original , pure clean signal without noise. n1 = white gaussian noise going added s1. s2 = s1 + n1 (the noisy signal before performing noise-reduction algorithm) s3 = noise-reduced signal (after performing noise reduction algorithm) n2 = s3 - s1 (the amount of noise after performing noise-reduction algorithm) now want compare snr before , after performing noise-reduction algorithm. which signals should consider snr_before!? s1/n1 or s2/n1 ? which signals should consider snr_after!? s3/n1 or s3/n2 ? which commands or functions should use in matlab in order compute snr_before , snr_after? thanks billion putting time on helping me. what know calculating snr before : snrbeforenoise = mean( signal .^ 2 ) / mean( noise .^ 2 ); and snr after : residual_noise = signal - noise_reduced_signal; snr_after = mean( signal .^ 2 ) / mean( residual_noise .^ 2
Read more

c# - Attempting to upload to FTP: System.Net.WebException: System error -

-
i have api takes in xml , uploads files based on information in xml. uploads on schedule (also xml), , have tested surrounding , know works. i getting error 40% of time on first file attempt upload in each time cycle (time cycle = 45 minutes files, 30 minutes others). here code upload: try { loggerftp.log("uploading file: " + filename, false); // create request. ftpwebrequest request = (ftpwebrequest)webrequest.create(appsettingsftp.ftpurl + @"/" + filename); request.method = webrequestmethods.ftp.uploadfile; request.timeout = 6000000; //set 100 minutes //request.timeout = -1; //set infinite // add login credentials. request.credentials = new networkcredential(appsettingsftp.ftplogin, appsettingsftp.ftppassword); // grab file contents. streamreader sourcestream = new streamreader(appsettingsftp.uploadfiledirectory + filename); byte[] filecontents = encoding.utf8.getbytes(sourcestream.readtoend()); sourcest
Read more

ios - UISlider customization: how to properly add shadow to custom knob image -

-
Image
i need place custom knob image shadow uislider. far have image of 38x38, of there region defines shadow of knob. now while using image, when slide knob extreme ends actual knob not able cover end points, hence end points visible under transparent region of knob image this code using customize uislider uiimage *slidebtimg = [uiimage imagenamed:sliderknobimg]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatenormal]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatehighlighted]; how can implement custom knob shadow beneath it, covering end points?? look inside uislider.h , there methods let customize slider knob , track needed. (ios 2.0 , above) // lets subclass lay out track , thumb needed - (cgrect)minimumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)maximumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)trackrectforbounds:(cgrect)bounds; - (cgrect)thumbrectforbounds:(cgrect)bounds trackrect:(cgrect)rect value:
Read more