Web Forms :: How To Expand And Collapsed Treeview Nodes

May 18, 2010

I m using Teeview control for displaying Family tree structure.its having around 500 members.

now, i would like to add search functionality inside a tree,after finding appropriate node,a whole tree should be expanded from that node only.

any one have idea? how can it possible?

i found one property called "ExpandDepth" but still its not proper for my requirements.

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Web Forms :: Treeview Expand/collapse All Nodes Client Side?

Mar 26, 2010

This is so frustrating...that such a simple feature should not be included in the design of this control. I am using the cssfriendly adapters and the rendered code is shown below.

I thought I might be able to use the adapter's treeview JS function ExpandCollapse__AspNetTreeView(this) since this is what is called when I click on the node that causes it to expand/contract. But that did not work.

I have seen other code posted but it seemed to imply the treeview was a table not a ul.

Does anyone know how to simply expand or collapse all nodes from a link button without doing the postback. Of course the postback works but what a waste to have to postback to do such a simple action.

Why doesn' t MS consider the users and developers when creating these controls and tools? Stupid!

[code]....

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When Expand And Collapse Nodes In The Treeview, The SurroundingWrapper Div Resizes?

Oct 18, 2010

The following is a version of some code I'm having trouble running in IE version 6. It seems to work fine in IE 7, IE 8, FireFox, and Google Chrome. But in IE 6, when I expand and collapse nodes in the treeview, the SurroundingWrapper div resizes, but the message at the bottom stays glued in place (I'd prefer it stayed glued to the bottom of the div SurroundingWrapper). Can someone please tell my why this code falls apart in IE 6?

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0

[code]...

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I have been having an issue when expanding a treeview, it looks fine when I load it, but when I click on a parent node it does expand, but also puts like 2 other parent nodes undernearth it. I am thinking it's because the treeview is saying that the parent nodes that have children have an index of 0, while everything else as there own index.

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I have bounded a treeview with an xml file. It bounded perfectly. you can have a view of my xml file.

<?xml version="1.0" encoding="utf-8" ?>
<MainMenu>
<submenu submenuname="Tracker">
<submenu1 submenu1name="NBD" url="View.aspx" picurl1="Images/report.gif" />
<submenu1 submenu1name="EOI" url="EoitTracker.aspx" picurl1="Images/report.gif" />
<submenu1 submenu1name="Proposal" url="ProposalTracker.aspx" picurl1="Images/report.gif" />
<submenu1 submenu1name="Project" url="ContractTracker.aspx" picurl1="Images/report.gif" />
<submenu1 submenu1name="Sub Contract" url="SubContractTracker.aspx" picurl1="Images/report.gif" />
</submenu>
<submenu submenuname="Reports">
<submenu1 submenu1name="NBD" url="#" picurl1="Images/report.gif" >
<submenu2 submenu2name="By Status" url="Nbdbystatus.aspx" picurl="Images/report.gif" />
<submenu2 submenu2name="By Date" url="NbdbyDate.aspx" picurl="Images/report.gif"/>
</submenu1>

...........................................................

MainMenu is the Parent node and Tracker, Reports ... are subodes. I want that if I click the node Tracker the all it's parent nodes(NBD, EOI, Proposal, Project, Sub Contract) should expand the remaining treevew remain same.

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I am using Tree view to display Categories & SubCategories under it. It's working fine. to create a Tree View I had used,
http://aspalliance.com/732.

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Web Forms :: Expand A Particular Node On Treeview

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What I am acheiving is a simple treeview which will have a tree structure

dir1
-- xx
dir2
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TreeNode tree1 = new TreeNode("dir1", "", "", "dir1", "");
tree.Nodes.Add(tree1);
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tree1.ChildNodes.Add(node);
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Now I want to do is collapse all the tree and find a particular node e.g dir1xx
I have put the code

tree.CollapseAll();
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tree.FindNode("dir1/xx").Select();
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but it falls over on the 2nd line with object not set

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Should be easy but I cannot find a property which allows me to right align the nodes in a treeview.

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I am trying to use a treeview control in my application. From the begining I had one parentnode and several childnodes for each parentnode. I wanted to be able to close an opened node when I click on a new one and I maneged that with OnTreeNodeExpanded method.

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[code]....

What I want now is:

1. to be able to close an opened parentNode if i click on some other parentNode,

2. if i click on childNode i want to expand it so I can see grandchild,

3. if i click on another childNode for the same parentNode I want that the allready expanded childNode collapses and that the childNode I clicked on to expand.

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[Code]....

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[Code]....

when i check Treenode with Text='Velocity', all the three child nodes will get checked. I want only the count of child checked nodes. How can be it done.

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I'm coding an Webpage in VS.NET 2010[C#] that scans the Serial Number of Product into a Treeview in a Work Order > Box > Product hierarchy.

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while (nodeEnumerator.MoveNext())
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}
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Web Forms :: Treeview: Click Node Text To Expand/collapse?

Mar 10, 2011

On a treeview, you can collapse/expand the nodes by clicking the +/- icon.

I would like to know how I can also click the node text to achieve the same results.

I want to be able to click the node text to expand/collapse the node.

How can I do this in ASP.NET/C# ?

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