Treeview Control???,8 - ng.asp-net-forum.master_pages_themes_and_navigation_controls

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9/1/2007 3:26:27 AM

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2 Items, 1 Pages 1 |< << Go >> >|

	camtu
	Asp.Net User

Treeview Control???

9/1/2007 3:26:27 AM

0/0

I use a TreeView Control in web form,

How to: When i check parent node, childnodes of it will be checked.

Please help me!

Regards!

Camtu

	Amanda Wang - M
	Asp.Net User

Re: Treeview Control???

9/4/2007 3:46:52 AM

0/0

Hi Camtu,

camtu:

How to: When i check parent node, childnodes of it will be checked.

You can use javascript to implement it.Below is a sample:

 <asp:TreeView ID="TreeView1" runat="server" DataSourceID="SiteMapDataSource1" ShowCheckBoxes="All" ShowLines="True" onclick="client_OnTreeNodeChecked();" >
        </asp:TreeView>

<script language=javascript type="text/javascript">    
function client_OnTreeNodeChecked()
{
 var obj = window.event.srcElement;
 var treeNodeFound = false;
 var checkedState;
 if (obj.tagName == "INPUT" && obj.type == "checkbox") 
 {
  var treeNode = obj;
  checkedState = treeNode.checked;
  do
  {
   obj = obj.parentElement;
  } while (obj.tagName != "TABLE")
  var parentTreeLevel = obj.rows[0].cells.length;
  var parentTreeNode = obj.rows[0].cells[0];
  var tables = obj.parentElement.getElementsByTagName("TABLE");
  var numTables = tables.length
  if (numTables >= 1)
{
for (i=0; i < numTables; i++)
{
if (tables[i] == obj)
{
treeNodeFound = true;
i++;
if (i == numTables)
{
return;
}
}
if (treeNodeFound == true)
{
var childTreeLevel = tables[i].rows[0].cells.length;
if (childTreeLevel > parentTreeLevel)
{
var cell = tables[i].rows[0].cells[childTreeLevel - 1];
var inputs = cell.getElementsByTagName("INPUT");
inputs[0].checked = checkedState;
}
else
{
return;
}
}
}
}
}
}

</script>

Hope it helps

Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Yours sincerely,
Amanda Wang
Microsoft Online Community Support

2 Items, 1 Pages 1 |< << Go >> >|

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