c# - validation control unable to find its control to validate -

-

i have repeater bound number of custom dataitems/types

on itemdatabound event repeater code calls renderedit function depending on custom datatype render custom control. (if validation flag set) render validation control appropriate rendered edit control

the edit control overrides createchildcontrols() method custom control adding number of literalcontrols thus

protected override void createchildcontrols() {     //other bits removed - 'hidden' control trying validate     this.controls.add(new literalcontrol(string.format(                                          "<input type=\"text\" name=\"{0}\" id=\"{0}\" value=\"{1}\" style=\"display:none;\" \">"                                          , this.uniqueid                                          , this.mediaid.tostring())                                          ));     //some other bits removed }

the validation control rendered this: passed in editcontrol control instance of above createchildcontrols method of.. 

public override control rendervalidationcontrol(control editcontrol) {     control ctrl = new placeholder();      requiredfieldvalidator req = new requiredfieldvalidator();     req.id = editcontrol.clientid + "_validator";     req.controltovalidate = editcontrol.uniqueid;     req.display = validatordisplay.dynamic;     req.initialvalue = "0";     req.errormessage = this.caption + " cannot blank";     ctrl.controls.add(req);      return ctrl; }

the problem is, altho validation controls .controltovalidate property set uniqueid of editcontrol. when hit page following error: unable find control id 'fieldrepeater$ctl01$ctl00' referenced 'controltovalidate' property of 'fieldrepeater_ctl01_ctl00_validator'.

i have tried changing literal in createchildcontrols new textbox(), , set id etc then, similar problem.

can enlighten me? because of order controls rendered in? ie validation control written before editcontrol? or...

anyhow appreciated

thanks

nat

you have use editcontrol.id not editcontrol.uniqueid

also take account if editcontrol must can used required field vaidator. doesn't make sense validator input controls.

edit
check link. may helpful since it's exaclty need
http://support.microsoft.com/kb/310082


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