Scroll to selected node treeview RSS

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  apicazo

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  1 Post

  Scroll to selected node treeview

  Mar 11, 2005 04:31 PM|LINK

  Hi, I am trying to select a node in a treeview, but the problem is that the scroll does not go to the right position. Anyone knows how to do it? Thanks in advance
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  fulin_321

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  1 Post

  Re: Scroll to selected node treeview

  Mar 15, 2005 08:46 AM|LINK

  good!!!
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  jagdish_ce

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  9 Posts

  Re: Scroll to selected node treeview

  Sep 23, 2005 12:04 PM|LINK

  Hi,

     I have same problem as you...if you get any idea then let me know
  
    Thanks in advance
  
  Regards,
  Jagdish Sakhiya
  IVAPS Pvt LTD, Bangalore

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  dingonet

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  3 Posts

  Re: Scroll to selected node treeview

  Oct 25, 2005 07:27 AM|LINK

  jagdish_ce

  Hi,

     I have same problem as you...if you get any idea then let me know
  
    Thanks in advance
  
  Regards,
  Jagdish Sakhiya
  IVAPS Pvt LTD, Bangalore

  
  AND ME TOO!! I find some said "in javascript get the nodeid.then use .node.scrollIntoView" ..But it doesn"t  work ..ie pro:document.all(...)is null.or the object haven't the mothed...
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  mjkrsk

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  10 Points

  2 Posts

  Re: Scroll to selected node treeview

  Nov 09, 2005 03:56 AM|LINK

  Are you using the TreeView in ASP.Net 2.0?
  
  If so, the Element ID convention is TreeView.ID + Node Index.
  
  The javascript syntax to scroll to the 99th node on a TreeView whose ID is "TreeView" is: 
     document.all("TreeView99").scrollIntoView(true);
  
  I have been trying to find the elementID of a node, and can't seem to get it (with the new ASP.Net 2.0 TreeView).  In the Web Control version (pre 2.0) I could programmatically select the node, then register a client side script to ZoomToSelectedNode, which worked great.  Unfourtunately, in ASP.Net 2.0 the tree view doesn't seem to support TreeView.selectedNodeIndex (javascript property).  I am still working on it!
  
  If you are using the older version of the web control, I can give you specific code examples of how to do it.
  
  • Edited by mjkrsk on Nov 09, 2005 05:27 AM
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  jagdish_ce

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  45 Points

  9 Posts

  Re: Scroll to selected node treeview

  Dec 28, 2005 04:36 AM|LINK

  Hi,

      Thanks for help........ Can you send me code....so, i can understand it.........

     Thanks in advance

  Regards,

  Jagdish Sakhiya

   

   

   

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  ruwansira

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  1 Post

  Re: Scroll to selected node treeview

  Jan 20, 2006 03:43 AM|LINK

  Hi,

      I have the same problem. Thanks for your ideas........ Can you send the code me also....then, i can understand it.........

     Thanks in advance

  Regards,

  - Ruwan Siriwardena
  

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  groggy

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  1 Post

  Re: Scroll to selected node treeview

  Mar 29, 2006 06:15 AM|LINK

  Hi,

      Can you send me the specific code examples....
  

     Thanks in advance

  Regards,
  

  Timo Korhonen
  

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  jptrue

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  65 Points

  16 Posts

  Re: Scroll to selected node treeview

  May 16, 2006 04:55 PM|LINK

  I have found a solution that works for me:

  //the client-side ID of the SelectedNode of TreeView1 is

  //stored in an hidden input named TreeView1_SelectedNode

  var inpSelectedNode = document.getElementById("TreeView1_SelectedNode");

  if (inpSelectedNode.value != "")

  {

  var objScroll = document.getElementById(inpSelectedNode.value);

  //my treeview is contained in a scrollable div element

  divTree2.scrollTop = findPosY(objScroll);

  //this works as well bu, but there is not as much control over the y position

  //document.all(inpSelectedNode.value).scrollIntoView(true);

  }

  function findPosX(obj)

  {

  var curleft = 0;

  if (obj.offsetParent)

  {

  while (obj.offsetParent)

  {

  curleft += obj.offsetLeft

  obj = obj.offsetParent;

  }

  }

  else if (obj.x)

  curleft += obj.x;

  return curleft;

  }

   

  function findPosY(obj)

  {

  var curtop = 0;

  if (obj.offsetParent)

  {

  while (obj.offsetParent)

  {

  curtop += obj.offsetTop

  obj = obj.offsetParent;

  }

  }

  else if (obj.y)

  curtop += obj.y;

  return curtop;

  }

   

   

  The findPosY function was "borrowed" from here:

  http://www.quirksmode.org/js/findpos.html

  Thanks,
  Jeff

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  radishj

  Member

  117 Points

  24 Posts

  Re: Scroll to selected node treeview

  Sep 19, 2006 02:11 AM|LINK

  Hi,

  I tried your solution.

  How come document.getElementById("TreeView1_SelectedNode") return me a NULL?

  Did you try this code in ASP 2.0?

  Thanks