Web Forms :: Split The Treeview Into Sub-Categories?
Feb 22, 2010
This may be a fairly complex question but I'll try to make it as simple as possible.
I have 2 treeviews, the 1 has a single hierarchial structure like this:
Parent
-->LevelOne
---->LevelTwo
-------->LevelThree
------------->LevelFour
But the second treeview must populate defining sub-categories from the database onto the tree like this:
Parent
-->Sub-LevelOne
---->LevelOne
------->LevelTwo
------------LevelThree
-->Sub-LevelTwo
---->LevelOne
------->LevelTwo
------------LevelThree
My problem is after I've defined the second sub-level structures, I get duplicated sub-levels of data within the sub-level nodes as opposed to having the data distributed between the 2 sub-nodes with the appropriate corresponding data assigned to each level.
In my database, the 2 top sub-levels are identified by integer values of 1 and 2. So the first 2 sub-level nodes are created using a case statement which creates 2 separate sub-level nodes on the tree as I need. But I am having a problem for how I can get the next levels of data to distribute between the 2 separate sub-levels accordingly???
Its almost like I need a 2 more treeviews within a treeview to accomplish what I'm after but I don't know if this is even possible.
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Jan 9, 2010
I want to add unlimited categories and sub categories facility, But I couldn't solve it for last two days.
1. DB
CategID,CategName,parentid
Data:
CategID CategName Parent ID
1 Electronics 0 (where 0 means it is main category)
2 TV 1 (Self Join whith the categ id Electronics)
3 Panasonic 2
4 LG 2
5 Toys 0
6 Girls Toys 5
7 Boys Toys 5
8 Criket Related 7
9 Dolls 6
Here I want to display this data in Combo Box like
Electronic
>>TV
>>Panasonic
>>LG
Toys
>>GirlsToys
>>Dolls
>>Boys Toys
>>Criket Realted
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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)
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at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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@categoryId int
AS
BEGIN
SET NOCOUNT ON
SELECT j.JobID, j.JobTitle, j.URL, j.City, j.State, j.Country, c.CategoryName
FROM ADPJobListing j
INNER JOIN ADPJobCategory c ON j.CategoryID = c.CategoryID
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[DataObjectMethod(DataObjectMethodType.Select, false)]
public ADP.JobsDataTable GetJobsByCategory(int categoryId)
{
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}
How do I need to modify my repeater to display the jobs by category?
[Code]....
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Sep 2, 2010
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id
ustid
kategori
seviye
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Feb 11, 2011
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<FooterTemplate>
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</asp:Repeater>
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runat="server"
SelectMethod="FetchFAQSByPrpAndCatID"
TypeName="PropertySite.BusinessRules.FAQRules">
<SelectParameters>......................................
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Nov 7, 2010
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Here is what i have so far
TABLES
Categories
CategoryID (PK) int
CategoryName nvchar(max) allow null
ParentID int allow null
Data for this table
1,Soaps,null
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5,Seasonal Collection,4
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ProductName nvarchar(max)
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Data for this table
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2,Prod2,some text,0.25,6
I have some linq to sql in the page load event that populates a list view,
[Code]....
Now when the category passed in from the query string is 6 then the products with a category of are shown correctly but category 6 is a child category of 4 and 4 is a child of 1 so when i pass in 4 as the category i should still be retrieving the data for products 1 and 2.
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Jan 6, 2010
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[Code]....
the code behind is as follow:
[Code]....
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}
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public string State { get; set; }
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get; set; }
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public string CityLink { get; set; }
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I'm using Entity Framework.
I have 3 tables:
- Products (Primary key productId)
- Categories (Primary key categoryId)
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Now I retrieve them in that way:
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int categoryId = 5;
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May 12, 2010
I have few monhts working with aspx, and now I'm developing a shopping cart website. For the employee to upload the products on the DB, every product needs to be linked to a category and sub category, and sub-sub category, and so on. Sometimes the sub-sub categories are up to 5. For example Electronics-TV-LCD-Samsung-40 inches.
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Then I want to use the ListBox control to select main Categories, and once it is selected, filled a second listbox with its childs and so on. Do I need to query SQL DB everytime the change event happens? I heard about linq but have not used yet.
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May 14, 2010
The problem is that we have 5 different categories and we have to calculate the percentage of products sold in each category. Then we have to show that in sort of a chart. The interface of chart is shown here
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Dec 16, 2010
I am trying to create a search filter much like the one used on eBay that dynamically comes up with appropriate search categories based on the search results left. For example: [URL]
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I need to try and implement something similar for an ASP.NET site, whereby I need to filter articles based on fields such as sales, companies, employee numbers etc. My database is quite normalised so I am able to separate all the data into their own tables.
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Mar 18, 2011
I have a categories table which is set up to allow an infinite number of sub category levels. I would like to mimic the following:It should be clarified that sub categories can have sub categories. E.g. Parent cat -> level 1 -> level 2 -> level 3 etc.My categories table has two columns, CategoryName and ParentID.This list box will be used when assigning the correct category to a product.How can I write this?EditIn response to thedugas I had to modify your answer to work with my situation. I found some errors that needed to be fixed, but below is a final, working solution.
protected void Page_Load(object sender, EventArgs e)
{
using (DataClasses1DataContext db = new DataClasses1DataContext())
[code]...
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Feb 24, 2010
I would like to create a category page in the admin section where the admin can create/add category from the webpage , he/she don't have to go to database to create it how to make this possible by sourcecode in webpage and in database?
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Mar 12, 2010
I am trying to put a list of categories on my shared master page, I have it working by passing my list of categories to the shared master page in a viewdata[] object - Problem I have is I now want to loop through and out put the links to my categories (Which I am doing this)
[Code]....
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Mar 16, 2010
I have a multilevel Category Table, like so
CategoryID, CategoryName, ParentCategoryID, IsMainCategory
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[code]...
I wanted to be able to loop through ALL categories in order like above programatically - This is how far I got
[Code]....
But I hit a stumbling block.. I just wanted to check I am tackling this the right way? Or is there something simple I'm missing?
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I have a ListView inside my UserControl which is showing a list of posts from the table named posts. I've also got a category table which is full of the categories. I then have another table which contains the PostID and the CategoryID so that posts can have multiple categories. I was wondering, in my ListView at the moment I only have a list of the posts but I would like to add, for every post in the listview, the cateogires it is in.
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