xaml - Silverlight ScrollViewer not working when containing multiple usercontrols -


i have page has header area , content area. content area contains 1 usercontrol. have class structure along lines of abstractclassa base class of classes displayed. abstract classes b & c both inherit a. concrete class b1 , b2 inherit b , concrete classes c1 , c2 inherit c.

this user control contains number of controls displaying information a, plus 2 additional controls 1 each b & c, made visible if class being displayed of relevant type.

those addituional controls display fields relevant corresponding abstract class, plus have additional controls relating concrete classes, again displayed when underlying class of correct type, have fields relating concrete class.

this working fine except of classes we're dealing have many fields don't fit on screen anymore. so, obvious thing - wrap content in scrollviewer.

only problem doesn't seem work.

the visibility of subsequent controls bound property on viewmodel (via bool visibility converter) determines type of class being dealt with. fallback value collapsed start invisible. not sure if required size somehow failing passed scrollviewer when subsequently? scrollbar doesn't appear, despite being set auto. xaml below

<grid x:name="layoutroot">   <!-- divide page row header , 1 further rows used position content -->   <grid.rowdefinitions>     <rowdefinition height="{staticresource headerrowheight}" />     <rowdefinition height="*" />     <rowdefinition height="100" />   </grid.rowdefinitions>     <grid grid.row="0"         grid.column="0"         grid.columnspan="2">     <!-- page header -->   </grid>    <!-- main page content follows -->   <grid grid.row="1"         width="auto">     <scrollviewer height="700"                   verticalscrollbarvisibility="auto">       <dataedit:casetypeinternaleditcontrol height="auto" />     </scrollviewer>   </grid> </grid>

i've tried putting scrollviewer within user control, no avail. missing?

the problem wasn't apparent question, i'd have needed post 1 of subsequent child controls, visibility determined thus:

        <canvas visibility="{binding path=caseisb, converter={staticresource booleantovisibilityconverter}, fallbackvalue=collapsed}">             <dataeditcontrols:casebeditcontrol datacontext="{binding casebeditviewmodel}"  />         </canvas >         <canvas visibility="{binding path=caseisc, converter={staticresource booleantovisibilityconverter}, fallbackvalue=collapsed}">             <dataeditcontrols:caseceditcontrol datacontext="{binding caseceditviewmodel}"  />         </canvas >

the problem being canvas object has size of 0 - wasn't registering scrollviewer when visible. switched out grid, worked fine...


Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());
Read more