wpf - Use checkbox as togglebutton in expander -


im quite new wpf , have following problem.

i need create list (i using listbox) of items can expanded (expander). problem is, can expanded, if have been 'selected'. each listboxitem should have checkbox , text.

so basic example illustrate mean:

<listbox> <item>(checkbox) john doe</item> <item>(checkbox) mike murray</item> </listbox>

if (so multiple allowed) of checkboxes in listbox checked, item expands showing more data.

again example:

<listbox> <item>    (checkbox-checked) john doe    data shown in expanded area </item> <item>    (checkbox-unchecked) mike murray</item> </listbox>

i cant expander use checkbox 'togglebutton'.

could me out? example code welcome...

this should trick:

<listbox>     <listbox.resources>         <style targettype="expander">             <setter property="template">                 <setter.value>                     <controltemplate targettype="expander">                         <grid>                             <grid.rowdefinitions>                                 <rowdefinition height="auto" />                                 <rowdefinition height="auto" />                             </grid.rowdefinitions>                              <checkbox                                 ischecked="{binding path=isexpanded, relativesource={relativesource templatedparent}}"                                 content="{templatebinding header}"                                 />                             <contentcontrol                                 x:name="body"                                 grid.row="1" content="{templatebinding content}"                                 />                         </grid>                          <controltemplate.triggers>                             <trigger property="isexpanded" value="false">                                 <setter targetname="body" property="visibility" value="collapsed" />                             </trigger>                         </controltemplate.triggers>                     </controltemplate>                 </setter.value>             </setter>         </style>      </listbox.resources>      <expander header="one">         content 1     </expander>      <expander header="two">         content 2     </expander> </listbox>

i've defined style here changes template of expander controls style applied. (and since i've put style in listbox.resources it'll automatically apply expander controls in list.)

the trick getting checkbox work when put (or indeed togglebutton based control) expander template, need use data binding configured relativesource set templatedparent. enables two-way binding - means not checkbox reflect current state of expander, able change current state.


Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc...
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use...
Read more