Treeview Limit For Number Of Nodes
Feb 22, 2012
Any limit to the number of nodes you can have in a treeview, I have been having some problems getting it to display with the panel I made. I have actually decided not to use the treeview, in fact may drop this part of the app altogether, but just wondering for future reference. I know if certain browsers have a limit for the the url, but can not seem to find anything, if there is anything, on a node limit. I am using asp.net 3.5 with VB and my browser is IE8, well the only one I tested on.
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Oct 13, 2010
I am Using Treeview Control in my application. My all menue detail is available in Db and i am getting it in dataset. I am binding my TreeviewControl with Dataset and it shows all nodes properly. I am able to done this at 2 levels. But i can't do this work at n-number of nodes. how i can do this for n-number of nodes using Dataset. Waiting for quich Response.
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Feb 18, 2010
I have a code that load hierarchy( nodes) into trew view.. by selecting different date, the hierarchy result from SP will show in the treeview..
the problem is even though I select a different date.. the result( node) of previous date is still showing in addition to the new hierarchy result...
it;s like the new result node is appended to existing node.. instead of refreshing the node and showing only the new result. How can I clear out the treeview nodes before adding new nodes from different date?
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Mar 13, 2012
how can add , edit, delete nodes and sub nodes in treeview in vb.net 2005 and sql server2005
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May 7, 2015
Code to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
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Dec 1, 2010
Should be easy but I cannot find a property which allows me to right align the nodes in a treeview.
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Jan 22, 2011
I understand that a treeview cannot expand/collapse without javascript. But is it possible to open the treeview in expanded form when javascript is disabled? Even if I cannot expand/collapse the nodes, at least I can click on the nodes that will display the data related to that node.
Similar to the treeview used in online auction sites, our treeview looks something like this: [URL], where clicking on a link will redirect me, and clicking on the "+" will expand or collapse the node. The only difference would be that ours is databound.
Another developer is working on this and he tells me that this is not possible without javascript. This webform in particular works almost entirely without javascript, and I'd like the treeview to also work partially.
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Mar 10, 2011
I see that the data is there when I autogenerate. I can't seem to understand how to get the values from the nodes? Any reference anywhere on the ways to set the properties of databandings/TreeNodeBinding?
Like I need the name inside here
<TaxonomyName>Resource Enhancement</TaxonomyName>
Using
<asp:TreeView ID="tvSubmissionCategories" runat="server" DataSourceID="xdsSubmissionCategories"
AutoGenerateDataBindings="False">
<DataBindings>
<asp:TreeNodeBinding DataMember="Taxonomy" Text="TextThing" />
</DataBindings>
</asp:TreeView>
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Sep 14, 2010
Second: Is there a way to select more than one node in tree view (like we do in Windows Explorer, by pressing SHIFT or CTRL) ?
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Feb 4, 2011
In my asp.net application I'm using TreeView control, and at some point I noticed that TreeView.Nodes property doesn't return all the nodes, so I'm curious how can I get ALL Nodes of TreeView control to iterate through them in foreach loop, any tricks, or I miss something?
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Feb 8, 2010
I have a TreeView menu populated from a SiteMapDataSource. The TreeView defaults to all nodes expanded, but the normal client side expand/collapse behaviour for the nodes is not working. I get one Javascript error in my Firebug console, being:
TreeView_ToggleNode is not defined
What could be causing this?
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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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Jan 3, 2010
I using TreeView with ShowCheckBoxes="All" in an ASP.NET 3.5 web application and for some reason the checked nodes are not returned in order. Lets say I have nodes A,B,C and I select B and C and hit the save button and when I check the CheckedNodes property of the Treeview the checked nodes are in order (B,C). But the next time when I go back to the page and select the node A the order is being returned B,C,A. What could be the reason for this behavior?
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Dec 17, 2010
I have treeview with checkboxes.
[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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May 13, 2010
I wanted to know if there are any Treeview controls with non-collapsible root nodes out there non-commercial preferably open source or if anyone can show me how to do it with the asp.net builtin control.
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Mar 27, 2011
How can i change color of text from TreeView Nodes? When i click "EditNodes" there is no property which set colours,and in TreeView.Font also i don't see colour's property.
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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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Jan 15, 2011
how to get list of all tree nodes (in all levels) in TreeView Controls ?
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Jul 15, 2010
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.
What I wanted to do was to use the following to Remove the ChildNodes:
//Use the GetEnumerator method to create an enumerator that contains the root node data.
IEnumerator nodeEnumerator = myTreeView.CheckedNodes.GetEnumerator();
// Iterate through the enumerator to display the root nodes.
while (nodeEnumerator.MoveNext())
{
/In here I would like to Remove the TreeNode
//MessageBox(((TreeNode)(nodeEnumerator.Current)).Text);
}
}
else
{
MessageBox("The TreeView control does not have any nodes.");
}
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Sep 20, 2015
I have a tree view which I am populating from active directory. I am trying to implement search in tree view , its returning null while its already fill with Active directory data ...
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Mar 23, 2010
In my Treeview i have for all nodes checkboxes.
parent
child
leaf
leaf
leaf
parent
child
leaf
child
leaf
1. when i check leaf - i want to have checked child and parent too
2. when i check parent - i want to have checked child and leaf
---
3. on a save button i only want to save checked leaf to DB - if they are not checked delete from DB
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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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Jan 30, 2011
I've created a custom implementation of SiteMapNode. I've attached it to Menu and it works ok. I've attached it to TreeView and it shows only nodes of one level. If I specify at SiteMapDataSource's ShowStartingNode==true, then I will see only root node and no expand buttons, if I specify ShowStartingNode==false, then I will see root's child nodes and no expand buttons also. What's wrong?
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May 24, 2010
I'm very new to xml so I hope I'm not asking any silly question here. I'm currently working on populating a treeview from an XML file that is not hierarchically structured. In the xml file that I was given the child and parent nodes are defined within the attributes of the item element. How would I be able to utilize the attributes in order for the treeview to populate in the right hierarchical order. (Example Mary Jane should be a child node of Peter Smith). At present all names are under one another.root
<item parent_id="0" id="1"><content><name>Peter Smith</name></content></item>
<item parent_id="1" id="2"><content><name>Mary Jane</name></content></item>
<item parent_id="1" id="7"><content><name>Lucy Lu</name></content></item>
<item parent_id="2" id="3"><content><name>Informatics Team</name></content></item>
<item parent_id="3" id="4"><content><name>Sandy Chu</name></content></item>
<item parent_id="4" id="5"><content><name>John Smith</name></content></item>
<item parent_id="5" id="6"><content><name>Jane Smith</name></content></item>
/root
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Jun 29, 2010
i added one treeview control in aspx page .All parent and child nodes are working perfect in this aspx page.
Now this same code i pasted in an ascx page and that ascx page i called through DNN website.That time parent node display is coming properly,but when i click on the parent node child nodes are not showing up?
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