vb.net - Why does ASP.NET TreeView node expanding not work on postbacks? -


i populating asp.net (vb) treeview data database. while populating tree, programmatically expand specific nodes based on data. node expansion completed correctly when called non-postbacks not postbacks after button click. thinking page lifecycle resetting formatting somehow on button postbacks. know how can populate treeview nodes formatting intact button postbacks?

protected sub page_load(byval sender object, byval e system.eventargs) handles me.load    'formatting intact     if not page.ispostback       loadtreeview("mytree")     end if    'formatting not intact     if page.ispostback       loadtreeview("mytree")     end if   end sub  'formatting not intact public sub btnloadhierarchy_click(byval sender object, byval e system.eventargs) handles btnloadhierarchy.click   loadtreeview("mytree") end sub  <asp:button id="btnloadhierarchy" runat="server" text="load hierarchy"/>  <asp:treeview id="hierarchytree" runat="server"> </asp:treeview>


Comments

Post a Comment

Popular posts from this blog

android - MPAndroidChart - How to add Annotations or images to the chart -

i working latest mpandroidchart library , looking way add annotations or images clickable. example: once data reaches value event occurs want able display user - there multiple events can occur annotations (not sure if right word) or image added @ point in chart. any pointers welcome. check documentation of yaxis . focus on setspacetop(...) , setaxismaxvalue(...) methods. for background: bar-shadow , disable calling: barchart.setdrawbarshadow(false) or change color: bardataset.setbarshadowcolor(int color)
Read more

javascript - Add class to another page attribute using URL id - Jquery -

i have attached id url. ex: when click link 1 , has #tab-2 id , takes me landing page. in landing page have find element has #tab-2 id have add class .active . i tried no luck. please 1 correct code. thanks js fiddle link html <div class="menu"> <ul> <li><a href="http://jsfiddle.net/gscyoa0j/1/#tab-2">link 1</a></li> <li><a href="http://jsfiddle.net/gscyoa0j/1/#tab-44">link 2</a></li> <li><a href="http://jsfiddle.net/gscyoa0j/1/#tab-74">link 3</a></li> </ul> </div> landing page <div class="tab"> <ul> <li><a id="tab-2" class="active" >link 1 content</a></li> <li><a id="tab-44" >link 2 content</a></li> <li><a id="tab-74" >link 3 content</a></l...
Read more

firefox - Where is 'webgl.osmesalib' parameter? -

i'm trying webgl running on firefox (v37.0.2) via software acceleration mesa. tried following steps have been stated in article: http://www.binarytides.com/enable-webgl-firefox-ubuntu/ however, unable find parameter named ' webgl.osmesalib ' in about:config section? has been removed (or renamed)? if yes, how should instruct firefox use mesa's software acceleration webgl? looks support osmesa removed in favour llvmpipe.
Read more