Vaadin - Disable Column reordering for particular column -

-

i'm doing project in vaadin 7.

in project, need disable column reordering feature particular columns in treetable?

i'm searching function 'setcolumnreorderids()'.

is possible in vaadin 7.

or else need write code 'columnreorderlistener()'?

update

this code set first column fixed in treetable. want disable reordering in hierarchy column in tree table. 

public class customtreetable extends treetable {  private static final long serialversionuid = 1l; private object[] visiblecolumns; private keymapper<object> columnidmap = new keymapper<object>();  @override public void paintcontent(painttarget target) throws paintexception {     super.paintcontent(target);     paintcolumnorder(target); }  private void paintcolumnorder(painttarget target) throws paintexception {     visiblecolumns = this.getvisiblecolumns();     final string[] colorder = new string[visiblecolumns.length];     int = 0;     colorder[i++] = columnidmap.key("column 1"); // logic keep first column fixed     (object colid : visiblecolumns) {         if(!colid.equals("column 1")) {             colorder[i++] = columnidmap.key(colid);         }     }     target.addvariable(this, "columnorder", colorder); } }

update 2

i tried oskar said..

in addition 

paintcolumnorder(target).

i'm calling 

paintvisiblecolumnorder(target),  paintavailablecolumns(target),  paintvisiblecolumns(target).

i'm able stop reordering table headers. but, body still reordering. guesses on issue?

in documentation there setcolumnreorderingallowed() allows control reordering of all columns. if case control particular ones looks me custom behaviour , go own implementation. columnreorderevent generated after processing action therefore implementing own columnreorederlistener won't here think.

all actual magic want change happens in private table.paintcolumnorder() called public table.paintcontent(), called public treetable.paintcontent() (see sources of table , treetable). solution be:

  1. extend treetable
  2. override paintcontent() merged copies of table.paintcontent() , treetable.paintcontent()
  3. replace paintcolumnorder() call custom logic.

update

ok, see it's more tricky thought @ beginnig, since there no easy way access of required fields , methods after subclassing treetable... moreover, columns reorered on client side , change event status sent inform server. don't know how handle custom reordering without creating custom gwt widget :(


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