Web Forms :: Treeview Adapted But Not Expandable
Nov 10, 2010
there webcontrol adapter experts.I have created a custom treeview webcontrol, that populates my treeview from a database. I am using a control adapter and this apperas to be working but I get some strange bullet points for my list and I cannot get it to expand or contract (see output HTML below). I am using the default SimpleTreeView.css and this also appears to be working. My list just fails to expand/contract or display the "+" (condensed) or "-" (expanded) symbols.
[Code]....
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May 10, 2010
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Oct 8, 2010
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I have a SQL database set up, it will be used to list applications upon a webpage. e.g. office.
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[code]...
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Mar 1, 2011
Periodically a rash of occurrences of the following error happen. I believe they're the result of hack attempts. Whether that's the case or not, my question is how can I handle the error? I want to avoid unhandled exceptions. The TreeView control is just
a standard .Net TreeView control, not a custom one. If you suggest a code solution, please code it in VB.Net as that's what I'm using.
Message: Input string was not in a correct format.
Stack Trace:
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.UI.WebControls.TreeView.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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Nov 15, 2010
I 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.
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Code to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
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Oct 1, 2010
I have a treeview that i fill from a database, when i add a new row to a database, the treeview is not updating.Even the reload of an internet explorer doesn't help, It does updates only after i press stop debugging button and turn it on again.Here is the code:
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[Code]....
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Jul 12, 2010
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Jul 3, 2010
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Mar 22, 2010
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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I am using treeview for all of the links that I have created in my Web.sitemap folder. However, I was wondering if there was a way that I could automatically logout after pressing the logout link in the treeview.
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protected void Page_Load(object sender, EventArgs e)
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Feb 19, 2010
I have a small problem encountered on using Treeview. I have Two pages on the sample. On the first page you can see a button that says "Add Category" and a grid that displays all the previously added categories (coming from a sql db). Upon clicking the "Add Category" button here comes the second page. On that page, we can see a two radio button,a textbox and a submit button. The first radio button says "Add new category", then the second radio says "Add a sub category on the existing category" which shows up the treeview upon clicking. Upon entering the new category and clicking submit, it will return on the First Page and you can see the on the grid the newly added category. Upon adding again and clicking the "add a sub category" the newly added category before was not added even though it was added on the database. Both Grid and the Treeview shares the same SQL statements on retrieving data.
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Apr 8, 2010
I need to display the innertext of the each node as items in my menu along with count (i.e; NewObject1(1), NewObject2(2)). I m using treeview but not able to bind this to treeview using xmldom
Xpath being://Request/NewObject/Object/text(). But not able to read text() attribute to treeview.
<root>
<Request>
<NewObject ID="1"> [code]......
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Mar 16, 2011
I have read many posts in the past about TreeView in Custom CompositeControls and using RenderControl but have yet to see a solution. I declare a new Tree in the CreateChildControls method and in the render I try to call the RenderControls method and it gave me an object reference not set to instance of an object error. I have set the SkipLinkText to Nothing, String.Empty and "". Once I do that I get the second stack trace. The control worked when it was a control on the aspx page.
[Code]....
STACK TRACE
[Code]....
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Apr 13, 2010
How can i remove this gap showing this pic?!!
the gap between name and state?
you can see the gap between Australia and victoria is good, but the gap between Tom and Victoria is too big?
how can i reduce it?
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Apr 5, 2010
we can get a parent & child value by using 'tvCityGroups.SelectedNode.ValuePath' then how can i get the parent & child Text in treeview.
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Jan 13, 2010
i am using treeview in my web application, when i collapse all the node root node becomes disconnect. i mean the root node line is broken. can any one tell me how to fix this issue.
this is my code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TreeTest.aspx.cs" Inherits="TreeTest" %>
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Jun 22, 2010
What 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
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Oct 18, 2010
I would to like to know about how can i bind the TreeView with multiple tables
E.g.
i have a table
Class -- fields are [id,class]
Term -- fields are [id,classid,terms]
subject -- fields are [id,classid,subject,terms]
topic -- fields are [id,classid,subjectid,termsid,topic]
[all joined with Foreign keys]
my need the following output requirement.
[Code]...
MCA is a parent class and under MCA there are Terms and under Terms there are Subjects and under Subjects there are Topics according to Topics wise. My requirement is when i Clicked on the MCA it will show Terms and after clicked on any Terms it display Subjects and after clicked on the Subject it display Topics and after clicked on topic it must display contents according to topic-wise.
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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 have used a treeview control on my aspx page, the treeview displays correctely on localhost
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http://10.17.233.16/Accueil/ReportDirectoryBrowser.aspx?rep=00%20-%20Definitions
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May 11, 2010
how to display treeview into a list box
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Oct 29, 2010
What I have is a simple treeview with one root node, and some childnodes under it. My form allows users to add a new child under the parent, (I'm not pulling anything for the treeview from a database or anything - it is just a treeview with some static nodes). What I then need to be able to do is when navigating away from the page, and then coming back, I want the user added nodes to persist.
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