python - Build complex layout in a dynamic list/grid -


i'm building simple app python3 , gtk3.0 looking correct element display layout following image

enter image description here

i need display n items items load database (can 1000+) , can change (insert, delete, update, etc.) , each item have complex layout inside (labels, buttons, etc.)

how can build layout list/grid dynamically changes.

i've read gtktreeview , gtkcellrenderer dont know how , other people recommend use gtkbox how handle model , update dynamically listview/cursoradapter in android or listview/bindings in c#/wpf.

documentation of gtk 3.0 poor , not explain how extend widget. point documentation not explain or @ least have not seen how reuse same element, how make use of resources (memory) when dealing lots of elements, example created series of widget in glade , can not use n times. not possible create items not windows. should within window. can create different arbitrary element of window can reused.

please when point me of above points, has example code can c #, python or c + + important have example

i've create project called 'sqlite-browser' using python3 , gtk. when display large number of records in database, can use treeview, , add pager (limit 100/200 records each page). maybe project can you. , here is: https://github.com/liulang/sqlite-browser

this screenshot: enter image description here


Comments

Post a Comment

Popular posts from this blog

jquery - How can I dynamically add a browser tab? -

since using iframes house external pages are, accounts "not preferred method" , disallowed sites (flickr, one), want dynamically generate browser tabs. e.g., when user submits form, want dynamically generate tab on browser in response submitted. e.g., might want add new tab url like: http://www.bigsurgarrapata.com/contact how in jquery? you want form target attribute action attribute. http://www.w3schools.com/tags/att_form_target.asp browsers have ultimate control on result of target attribute open new tab value of _blank. <form action="contact_submit.php" target="_blank" method="post">
Read more

keyboard - C++ GetAsyncKeyState alternative -

i using windows.h library's getasynckeystate function define key pushed on keyboard . here program returns int value of pushed key example. #include <iostream> #include <windows.h> using namespace std; int main (){ char i; for(i=8;i<190;i++){ if(getasynckeystate(i)== -32767){ cout<<int (i)<<endl; } } return 0; } but trying make opengl simple game , function appeared slow . there function not need cycle 180 times , if statement . thanks you're trying make opengl game, you're going use glfw. if that's case can away using glfwgetkey() such: if (glfwgetkey(glfw_key_up) == glfw_press) {...} if (glfwgetkey(glfw_key_down) == glfw_press) {...} that method nicely explained in tutorial 6 opengl-tutorial.org . should start first tutorial of beginners tutorials , later intermediate tutorials . if you're going make win32 window can listen wm_keydown or wm_keyup messages , virtua...
Read more

android - java.net.UnknownHostException(Unable to resolve host “URL”: No address associated with hostname) -

i developing app testing asp.net webservice in android.for simple webservice adding 2 numbers used.where numbers passed parameters.the result in dialogue.the webserver works in local. when application runs following result exception.i provided internet permission in manifest. java.net.unknownhostexception(unable resolve host “ http://url.com/ ”: no address associated hostname) my code given below main activity public static string rslt=""; /** called when activity first created. */ @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); button b1=(button)findviewbyid(r.id.button1); final alertdialog ad=new alertdialog.builder(this).create(); b1.setonclicklistener(new onclicklistener() { @override public void onclick(view arg0) { // todo auto-generated method stub try { ...
Read more