I want to know how Can I check the checkbox of a asp.net tree view node ( it can be either parent or child) based on matching a condition from the code behind?First Im getting all the nodes from the database. After that I want to check the checkbox corresponding to the ID which that user is a part of.
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I need to retrieve a specific node from the TreeView in order to dynamically set it's NavigateUrl property. I've tried using the code below:
TreeNode homeLink = TreeView1.FindNode("Home");
However this returns System.NullReferenceException error.My guess is that I'm using a wrong valuePath in the FindNode("Home"); function. I assume that valuePath refers to the "title" property of the node in the SiteMap?ere is an extract from the sitemap:
<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" >
<siteMapNode url="" title="" description="" SelectAction="Expand" roles="*">
[code]...
I have some data that I am putting on a treeview and have a checkbox on the page to decide if the user wants to order the nodes by date or type.
To do this I need to check if the code has already added a child node so when grouping by the type I don't put it in lots of times.
Lets say I have Type 1 and Type 2 and each have 3 items that would fall under these I want to achieve:
Type 1
Item 1
Item 2
Item 3
Type 2
Item 1
Item 2
Item 3
Instead of:
Type 1
Item 1
Type 1
Item 2
etc etc etc
I tried using the node.Contains function but it doesn't seem to exist (I am using c#).
I have a tree view created in my HTML Page
[code]...
now i want to hide the Stats node in the page load function in my code behind....
if tree node does not have tag property like windows treeview control then i just want to know how could i attach the tag property with each tree node.
View 1 RepliesI use asp.net 4 and c#. I have a TreeView and I would like select an existing node programmtically.
SelectNode() method is read only
[URL]
so I do not know how to do it. TreeView WEB CONTROL not for Win App.
My Code:
protected void uxTreeView_DataBound(object sender, EventArgs e)
{
TreeView myTreeView = (TreeView)uxManageSlotsDisplayer.FindControl("uxTreeView");
myTreeView.Nodes[2].Selected = true;
}
how to read selected node and its parent node values for treeview in asp.net in JAVAscript.
View 3 RepliesI have a treeview control where I am dynamically selecting a node depending on user interaction. when a node is selected I want to be able to have the scrollbar go to the location of that selected node in the tree. The scrollbar is simply made by overflow:auto in the div tag where the treeview is located.
View 1 RepliesIs it possible to get the unique URL of an expanded treeview node? I need to be able to send the URL to someone and he should be able to navigate to that particualr node from the URL.. so I guess I need to somehow use a query string with the treeview control?
View 1 RepliesI have a question that is very simple to answer, I have a treeview control populated by a sitemap file, what I want to do is to assign a different image to each node/leaf of the control, let me explain a little bit more, this what I have in my sitemap file:
[Code]....
So I know that a different image can be placed for root, parent, leaf and node on the code, but I want a different image for each leaf in the treeview... I know that the easy way to do what I want is to edit/add nodes in the control BUT I populated the control from a sitemap file, so is there a way to put a different image in each leaf of a treeview control being populated from a sitemap file?
I'm trying to get my treeview control to work where a user clicks on a parent node. The node will expand.Then, the user clicks on another parent node and that node expands while the previous parent node stays expanded. My problem is that when I expand one parent node, another expanded parent node collapses.What am I doing wrong?
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I am used treeview control within updatepanel,updation was no problem but i am unable to control treeview node expand and collapse.
Does anyone know a way to limit the amount of text that is displayed by the Treeview control for a node?
I know there is a property to warp the text but I want to perhaps limit the text size to say 20 characrters?
I am using a treeview control and just want to add nodes dynamically. On selecting a node the results based on that node must be shown below.
View 1 Repliesin my application i need call new form on click of node in tree view control in asp.net 3.5 c#.
View 1 RepliesI have a treeview which will be generated dynamically which need to be displayed on left side and when user clicks on a node it need to open a page on the right side of the same page. and each node has different aspx page. so whenever user selects a node the page details should be displayed on the right side .we can use an iframe on the page which will display the different pages clicked on the node.Is there any alternative i can use to display different pages based on the user selection on the right side without using iframe.
View 5 RepliesI am experiencing an issue with the TreeView control when loading new pages. It is databound to web.sitemap, but when loading a new page, it does not select the node of the current page, just resets it to the root. THe new page loads fine, just not preserving the current navigation in the tree view.
View 2 Replies<asp:TreeView ID="TreeViewCategories" runat="server" ExpandDepth="0" Style="min-height: 200px;
max-height: 500px;" LineImagesFolder="~/TreeLineImages" NodeIndent="0" LeafNodeStyle-CssClass="LeafNodesStyle"
CssClass="TreeView" NodeStyle-CssClass="NodeStyle" ParentNodeStyle-CssClass="ParentNodeStyle"
[code]...
I have a treeview with four levels; parent, child, grandchild, great-grandchild. My selectednode is at the grandchild level.
What I'm trying to do is to create a new "Treeview" at the grandchild - NO, I dont wnat to create a new node to the "selectednode" (grandchild). So it should be somelike this:
[Code]....
I have listed data for ASP.net control TreeView. I wanted to disable a particular node/parentnode in the listed TreeView. I wanted to do this using jQuery.
View 1 RepliesWhat I am acheiving is a simple treeview which will have a tree structure
dir1
-- xx
dir2
Simple stuff !. Here is the code
TreeNode tree1 = new TreeNode("dir1", "", "", "dir1", "");
tree.Nodes.Add(tree1);
TreeNode node = new TreeNode("xx", "xx");
tree1.ChildNodes.Add(node);
TreeNode tree2 = new TreeNode("dir2", "", "", "dir2", "");
tree.Nodes.Add(tree2);
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();
tree.FindNode("dir1").Select(); <-- falls over
tree.FindNode("dir1").Expand();
tree.FindNode("dir1/xx").Select();
tree.FindNode("dir1/xx").Expand();
but it falls over on the 2nd line with object not set
after populating treeview and i want to traverse in all the node and want to attach javascript if the node has child node. how to do it in asp.net when work with treeview control.
View 1 RepliesHow do I get the value of a treeview's selected node and it's children's values?
TextBox1.Text = TreeView1.SelectedNode.Text; doesn't do it.
I am using a treeview control. I am buliding the tree dynamically. sometimes the tree becomes larger and the down scroll bar is need to see the entire tree. user can select a node from the tree. if one node is selected ,i change the color of the node from server side.
my problem is that if a user selected a node which is bottom in the tree(means, the user used the down scrollbar to see that node), after postback it shows the top of the tree.to see the selected node the user need to use the down scroll bar.
I need to show the selected node after postback. How can I do this?
I am using c# and asp.net
Im using treeview in asp.net
how can i check if parent contains childnodes in treeview selected node changed event.
