c# - Pass data between 2 dynamically loaded User control -

-

i have scenario dynamically load 2 user controls in webform, , need them interact together. here's code :

default.aspx.cs controla ca = (controla)loadcontrol("~/controla.ascx"); controlb cb = (controlb)loadcontrol("~/controlb.ascx"); page.controls.add(ca); page.controls.add(cb);

now thing is, controlb needs pass data controla. data not event (well part of). when user click on link controlb, data db, , need pass controla id of first data fetch request. , of course, when user click on link in controlb, page postback.

i looked @ events & delegates, can't make work. right way go ?

if have clue, appreciated !

a quick , dirty method comes mind declare id of first data fetch public property of controlb, , set value on link postback's handler on controlb eg. on controlb's event handler : 

public void link_click(object sender, eventargs e) {  this.firstfetchedid = getvaluefromdb(); }

then on controla's prerender :

protected override void onprerender(eventargs e) { controlb cb = this.page.findcontrol("controlbid") controlb; // either id or loop trough controls find type var youridishere = cb.firstfetchedid; base.onprerender(e); }

Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more