Web Forms :: Hierarchical Structure Within A List Box?
Sep 15, 2010
i added a collection of data into a list box. i have another group of data with a group name.i want to add this group in to that same list box as a tree structure.
the sample list box is shown below.
item1
item2
item3
-group name
group item1
gruop item 2
gruop item 3
item 4
item 5
is there any way to do this. when clicking on the group name it must be expanded within the list box and i want to manage all these elements with an index.
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Feb 22, 2011
I have a datatable which i get from the databasemanager class, and i would need to transform that data into a hierarchical structure
either binding it directly to a .net treeview control or in memory first .
i have an ID column, and a ParentID column.what i do not know necessarily is the parent ID to start with. so first thing to do would be to find out which node is the parent ID.
what would be best practice to loop over this table and make it hierarchical
BranchId ParentId ProductCount HasBranchChildren Name
0 NULL 48 1 Categories
1 0 20 1 CategoryA
2 1 10 1 CategoryA1
3 1 8 0 CategoryA2
4 1 2 0 CategoryA3
5 2 4 0 CategoryA1.1
6 2 6 0 CategoryA1.2
7 0 28 1 CategoryB
8 7 20 0 CategoryB1
9 7 8 0 CategoryB2
this would be an example datatable of course it will have hundreds of items, and it does not always start at the root node, its possible that with a request a certain subset of categories is requested, however i've talked with the database team and they will give me NULL on root nodes in the above example that would be element 0 in the table ....
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Mar 19, 2010
i have a table with parent-child relationship wherein each child in turn can have multiple associated children. i want to display data in an hierarchical way with collapse and expand features.i dont want to use 'listview inside a listview inside a listview' approach. and yes i have googled it but cudnot find anything useful for my scenario. has someone successfully tried implementing this ?
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Sep 14, 2010
I am getting following output in Dataset
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<ul>
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Feb 17, 2010
I'm writing an ASP.Net application (no AJAX, but maybe) and there's a requirement to have a list of companies graded under a traffic light system. I intend to have these in a collapsible hierarchical list on the Master page, e.g. Red expands to show companies, and then companies can be further expanded.
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Oct 29, 2010
I am trying to achieve a list view with this structure.I have many categories with many products
<table>
<tr>
<td colspan="3"><h2>Cat1</h2></td>[code]...
As you see the <td> for products must always be no more than 3 columns. but if there are 8 products then there will be 3 rows (2 full rows and one row with only 2 products) So far I have this:
<asp:ListView ID="lvProducts" runat="server">
<LayoutTemplate>
<table cellpadding="0" cellspacing="0" border="0" width="800"> [code]...
it doesn't work .
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Mar 16, 2010
I've data which looks something like this.
[code]....
To convert the above data into unordered list based on depth, I'm using the following code
[code]...
But the resulting unordered list doesnt seem to be forming properly(using which i am constructing a tree).For example "Site " with id '180' is supposed to appear as a direct child of "Televisions" with id '1',is appearing as a direct child of 'Flash' with id '191' using my code.so in addition to considering depth,I've decided to consider itemid as well in order to get the treeview properly.Those rows of the table with itemId not equal to null are not supposed to have a child node(i.e.,they are the leaf nodes in the tree) and all the other nodes can have child nodes.
Update:
The 'itemid' column refers to the id of an item which is present in another table.This column just in identifying if an item has any sub items(i.e., 'name' in my data in this case has any other unordered lists under it).
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Jun 17, 2010
I have a series of SQL database tables but would like to be able to have a table entry that can support a list of primary key's for another table - how I can do this?
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Jan 19, 2010
how to display hierarchical data in checkboxlist
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May 20, 2010
I want to learn how to show html in a situation of a tabular format to One To Manyto make me understand I have the categories and subcategories for each category I wish we were all subcategories.I tried with a DataList, but the categories repeated for each subcategoryIs there a way to do it. For example in asp.net mvc I wrote everything in aspx page
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Dec 13, 2010
how to create hierarchical grid using c#
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Mar 5, 2010
Can I read from a dataset and create a hierarchical horizontal menu?
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Aug 11, 2010
So here is the situation - there is data on master records - its a hierarhical view - something like (ID, IDParent, Title) and detail data - (ID, IDMaster, Details)
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Sep 27, 2010
I want to Display N-Heirarchical Menu using Dynamic Repeater Control along with CheckBoxes.
If Suppose i am having 3 level Menus i need to create 3 Repeaters Dynamically along with CheckBoxes beside of that sub Menus
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Jul 30, 2010
I've managed to render TreeView using custom made Hierarchical Datasource based on Linq queries on self referencing table. Rendered output looks well but... Every Node in NodeCollection has the same index = 0. Therefore when I click on any collapse button - the whole tree Collapses. In generated html every node has the same id = MainContent_TreeView1n0 I suppose n0 should increment to n1 n2 n3 and so on.
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Mar 24, 2011
We are trying to design a selection tool for hierarchical dimension (e.g. org-dept-subdept) in order to query SSAS cube. When user clicks a dropdownlist, a tree view will pop out for user to select single or multi tree nodes. Ideally it would be like the dropdown box used in Excel pivot table when it is connecting to a SSAS cube.
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Dec 4, 2010
I want to make a hierarchical gridview with 1 freeze column.
i have freeze a column in general gridview but it was not working on internet explorer 8.
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Feb 23, 2011
I have developed an application using Visual Studio 2008. I have a hirerchical gridview and on every row i have a "Payment" button which actually inserts a payment entry in database. Here is the sample screen of that gridview so u have an idea what i am doing. Problem is that whenever user pressed the button of "PAYMENT" it is inserting multiple records in database..it should only fire once and i am failed to understand why its firing multiple times. Refer this link for my payment screen: [URL]
[Code]....
My code behind--------------------
[Code]....
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Aug 13, 2010
I just finished making a change to an ASP.NET Ajax screen from a few years back. It was harder than expected to build and maintain. On this change, I estimated 12 hours and spent 4 days. Granted I also did extensive refactoring to simplify the code. This is actually some pretty fun code, but I wonder if there was a better route for the original implementation than the one I took. To start, here's a screenshot:
The Problem So obviously this is an editable tree of data. The data behaves very differently at each level -- very different sorting/collision rules and so on. My solution is actually performant and provides an adequate user experience, but it's nearly 2,000 lines of code spanning 11 classes, which is more than I envisioned going in. I'm curious if you've solved similiar problems and if you were able to find a simpler solution. It looks pretty straightforward at a glance, maybe that means I did something right. But there is some real complexity here -- obviously you can add and remove items at three different levels, and everything sorts similiar to a netflix queue, but with quirks. It also has to detect collisions on the various entities (in the image, if you changed day 5 to day 1, it would have to figure out which one is actually day one and move the other one).
The biggest problem was keeping track of the state, since users don't want to commit changes to the database as they work. I thought it might be possible to use the actual controls (nested repeaters in this case) to represent this interim state, but that ended up being a dead end due to complexities related to the underlying data. The Solution To solve this, I created a full blown XML representation of all the data, which was actually great in some ways since I was able to use LINQ to do a lot of heavy lifting around sorting and querying. Still, there is a lot of code in here related to syncing up the xml to the html and so on, and I had to make a pretty hefty abstraction on top of the xml to make it easy for me to work with it in code. In case you're interested, I am currently persisting the XML to session state so that it will survive across callbacks, but eventually that should go into the database.
One colleague told me it would be better to use Flex or maybe Silveright for something like this, and I think that might be true since those are both much more stateful, although Silverlight was not ready for prime time back when this started, and I don't know Flex. Maybe using a temp table instead of xml would have been superior in some way. I'm looking to learn and improve -- what have your experiences been with this type of problem?
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Jun 14, 2010
I am working on an ASP.NET application which has one data entry form. this form contains one field which takes Path for existing webforms.Suppose i have a form name "XYZ.ASPX" inside my working directory eg. "WEBPAGESXYZ.ASPX"Now my requirement is "Can i have a browsing control which will restrict me to browse pages and user controls in my wrking directory only and not the whole computer"
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Mar 15, 2010
I'm looking at building a facility which allows querying for data with hierarchical filtering. I have a few ideas how I'm going to go about it but was wondering if there are any recommendations or suggestions that might be more efficient.
As an example imagine that a user is searching for a job. The job areas would be as follows.
1: Scotland
2: --- West Central
3: ------ Glasgow
4: ------ Etc
5: --- North East
6: ------ Ayrshire
7: ------ Etc
A user can search specific (i.e. Glasgow) or in a larger area (i.e. Scotland).
The two approaches I am considering are:
keep a note of children in the database for each record (i.e. cat 1 would have 2, 3, 4 in its children field) and query against that record with a SELECT * FROM Jobs WHERE Category IN Areas.childrenField.
Use a recursive function to find all results who have a relation to the selected area.
The problems I see from both are:
Holding this data in the db will mean having to keep track of all changes to structure.
Recursion is slow and inefficent.
I'm using C# ASP.NET with MSSQL 2005 DB.
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Mar 2, 2011
Site.Master file contains
<ul id="nav">
<% Html.RenderAction("Menu", "ShoppingCart"); %>
</ul>
[ChildActionOnly]
public ActionResult Menu()
{
// for to geenrate menu ?
return ????
}
How to generate hierarchical menu below in Menu method from database data ? Should I use stringbuilder or is there better way ?
Resulting html shoudl look like:
[Code]....
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May 7, 2010
I have three level hierarchical data. using the statement below i managed to display two level data. I need to extend it to one more level.
Current hierachy is Modules-->Documents
I need to extend it as Packages-->Modules-->Documents
var data = (from m in DataContext.SysModules join d in DataContext.SysDocuments on m.ModuleID equals d.ModuleID into tempDocs from SysDocument in tempDocs.DefaultIfEmpty()
group SysDocument by m).ToList();
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Mar 21, 2010
I have a table in SQL Server 2005.
I want to show all domain name in a dropdownlist maintaing the same hierarchy. i.e
Law
Engineering
--civil
--Mechanical
Medical
--Dental
----Cavity
--MBBS
I need to append '--' according to the domain level. Is it possible using a sql query. or alternatively can I have any other control to show this data.
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Nov 17, 2010
I'm building an ASP.Net MVC 2 application with a component architecture. There are two different types of components: Elementary Components, which have an associated controller action rendering a partial view, and Layout Components, which render all their child components (Elementary Components or again Layouts) in a certain layout.Here is my generic RenderComponent() action method, which takes a component ID and renders the appropriate view:
[Code]....
Is my hierarchical component architecture incompatible with ASP.Net MVC? How would you build such a system in ASP.Net MVC?
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