C# - Get List Of All Tree Nodes (in All Levels) In TreeView Controls?
Jan 15, 2011how to get list of all tree nodes (in all levels) in TreeView Controls ?
View 2 Replieshow to get list of all tree nodes (in all levels) in TreeView Controls ?
View 2 Replieshow can add , edit, delete nodes and sub nodes in treeview in vb.net 2005 and sql server2005
View 1 Repliesi'm new one to Asp.net (3.5).. plz tel me how to calculate the node, childnode, sub childnode and so on.. and tel me how to retrive value of all...
Using Recurisive i can do this but i don't how to do..
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?
how to expand and collaps the tree view nodes in asp.net
View 4 RepliesCode to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
View 1 RepliesI 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 ...
View 1 RepliesI'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?
View 2 RepliesWhen installing an Umbraco site, I changed my umbraco admin url from '/umbraco/' to '/myadminurl/', even before I went through the install process.
Just like it's documented, I changed in the web.config the keys 'umbracoReservedPaths' and 'umbracoPath' to match my new admin url.
Installed and everything is working fine, except for one thing: All the nodes in the trees in all sections aren't showing any thumbnails. There used to be a win folder thumb before each tree node, but now it's just empty, except for the 'packages' node in the developer section, and for the recycle bin thumb.
I need to check/select all the nodes in a tree view with minimum complexity. My tree view has 3 levels and many nodes in it. below is my code:
<asp:TreeView ID="TreeView1" runat="server" DataSourceID="XmlDataSource1" ShowCheckBoxes="All" ShowExpandCollapse="true"
<DataBindings>
<asp:TreeNodeBinding DataMember="Category" TextField="Name"
ValueField="Value" />
<asp:TreeNodeBinding DataMember="LeafCategory" TextField="Name"
ValueField="Value" />
<asp:TreeNodeBinding DataMember="ChildCategory" TextField="Name"
ValueField="Value" />
<asp:TreeNodeBinding DataMember="SubCategory" TextField="Name"
ValueField="Value" />
<asp:TreeNodeBinding DataMember="Categories" TextField="Name"
ValueField="Value" />
</DataBindings>
</asp:TreeView>
<div>
<asp:TreeView ID="TreeView1" runat="server" ExpandDepth="0" ShowLines="true"
OnSelectedNodeChanged="TreeView1_SelectedNodeChanged">
<HoverNodeStyle Font-Underline="True" ForeColor="#6666AA" />
<NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="Black" HorizontalPadding="2px"
NodeSpacing="0px" VerticalPadding="2px"></NodeStyle>
[CODE]...
How can i reduce the vertical spaces between nodes in TreeView in Asp.net.
View 1 RepliesIn my website, I have a TreeView that has this structure:
Root
|-Leaf
|-Parent
|--Leaf
|--Leaf
|--Child
|---Leaf
|---Leaf
|--Child
|---Leaf
|---Leaf
Is it possible to make the tree in a "collapsed" state where all the Leaf nodes and ONLY leaf nodes are hidden from view until its parent node is expanded? The ideal solution would be to do this without a postback, but any solution at this time would be helpful. The "collapsed" view would look like this:
Root
|-Parent
|--Child
|--Child
Expanding the Root, Parent or Child nodes should show their Leaf nodes. Collapsing the node should re-hide its leaf nodes, but leave the child nodes visible.
I need to know a way to disable nodes in a tree view when a particular node is checked (the leafs has check boxes), currently I was able to do it but my problem is I have check the check box, then click on the node in order to get it disabled, this not an user friendly at all. I want it to happen when I check the checkbox in the tree node.
View 3 RepliesI have been trying to delete nodes from a tree view that is being generated from a database. I have the code written and it works, but only on the root Nodes. It will not delete Parents/Childs/Leaf, it will if I delete the root, but I also want to be able to delete parent nodes and such.
Right now i have this code so far
Dim tn As TreeNode = treeView.SelectedNode
treeView.Nodes.Remove(tn)
I know that I can just use treeView.Nodes.Remove(treeView.SelectedNode) but was doing some error checking to see if I could firgue out what was going on. I am using VB6, I am not so worried about the database deleting at the moment. I would prefer not to use the Clear() method as this will remove all the nodes I only want to remove certain ones and keep the rest.
I am developing an ASP.Net web application for my client which is into Multi Level Marketing Business. I need to show him the treeview of the members under any member he chooses. For eg. he selects 'Member A' from the DropDownList, and clicks Submit, he should get a treeview of all the members under 'Member A'
View 1 RepliesI 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.
the problem is actually in the subject. I have custom control that uses treeview. The control is added dynamically. Nodes for this treeview are populated on demand. Treeview nodes can be checked. I recreate this control on page load event, but still CheckedNodes is empty if checked nodes were added dynamically (added on demand).
View 2 Repliesi have a tree view with nodes beverages ,condiments,confections,dairy products and am adding a new node by entering the name of the node through a textbox and the position of the node as where to be inserted is given thru a dropdown list.fro ex.if i select beverages from dropdown list the node is added as a child node of beverages..the node being added is temporary i.e when i run the program again ,previously added node does not exist.."how to make the newly added node exist permanently..ie if i add a node to beverages or any node as a childnode it should exist permanently..when i run the prog again i shud see the node which was added... "
View 3 RepliesShould be easy but I cannot find a property which allows me to right align the nodes in a treeview.
I've tried adding text-align: right in a CSS declaration linked from NodeStyle > CssClass. Nothing.
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.
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>
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) ?
View 2 RepliesIn 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?
View 6 RepliesI 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?