Web Forms :: Displaying Data Logic When Click On A Main Category
May 24, 2010
I have a sidebar on a page with vertical navigation about products The navigation links are created from an xml sitemap with a repeater control using 2-level nodes with product main categories and subcategories I want to display the data so when i click on a main category the page will reload showing the underlying subcategories names and description in the main section (div) of the page, but also when i click a subcategory's name from the sidebar, i will get its products (names and description from an SqlDataSource) in the main section. (In the main section i'm probably going to use a DataList)
Can i do that ? Display different category level data depending on the link that was clicked or do i need a seperate "maincategories" page. The scenario is similar to the master-pages-and-site-navigation tutorial in the data-access tutorials but that one goes as far as presenting the main categories [URL]
in my on-line shopping project i created a dynamic Category List (with Infinite Level Depth) Implemented in a Single Table in DB with Self join.the schema is like below:UpdateI want to use a JQuery plugin to make a Multi Level Menu bar. this plugin uses <ul> and <li> elements so I should transform the DB table to <ul> and <li>. the result should like this:
I am working in a project that is a musical website. I want to display the web page with all categories I have. In my database , named Category_Master, I have two fields like Category_Id (which is a primary key ) and Category_Name. I have generated category_Id with NEWID() function. The category_Id is not supposed to display on the web page. But, i have to select Category_Name and according to that , I have to get the category_Id. If I am using Static connection with SqlDataSource, i am able to make visible=false property so that the category_id won't be visible. But , at that time, I can't write code to Select the category_id of the selected index.
If i am using disconnected approach, I filled the dataset with the Category_Master, and binded it to GridView. But, at that time, I can't hide the category_id from the user. I want to select category_id by clicking on the category_name with out displaying category_id ..?
I have a textbox control i disabled view state at page and control level.i entered a value in the text box and click a button there is a postback,no business logic in the button click event.The values in the testbox are persisting though i disabled at the control level and page level.
I have a gridview with 20 records and I have scroll bar to scroll down to view the records.I m displaying respective row data when click on the select button in grid view. The problem is whenever I select the
row, the gridview refreshes and scroll bar is going up. Ofcourse it is displaying correct data. but the gridview refreshes and scroll bar goes up.I want the selected row to be shown when I select that row.
i create example using Northwind database so i create a new website and add new ADO.Net Entity Data Model (.edmx) called Northwind.edmx and i add Categories and Products table inside this (.edmx) file
and add new ADO.Net Data Servuce called "ADODataService" and add it as WebReferences called NorthwindService
so i add new web page and drag DropdownList and Gridview as i want to bind Dropdownlist to all categories and when i select category from Dropdownlist bind Gridview to all Products related to this category
so my code
[Code]....
and my code [Code]....
so when i select category from Dropdownlist nothing happen :(
also you will find commented code in method BindCategory whuch is not work also.
I'll try to explain as simple as I can in text what my problem is. I don't see any other way to make my issue clear.
I have a GridView that uses an ObjectDataSource.
The ObjectDataSource has an DataObjectTypeName defined, so I pass/get complete objects or list of objects to/from the data access methods.
The objects I'm working with, let's say we work with Book objects, contain a Title and a Category, BUT the Category is an object itself. When the Select method is called, we get a List of Book objects, which is perfectly displayed, overridden ToString method in the Category objects within the Book objects.
The problem I face is that I can't find a way to update the category in my GridView. What I did already accomplish is:I used a template field in the GridView for the Category so I could use a DropDownList for that field in Edit mode.
I bound the DropDownList to another ObjectDataSource that gives me a list of CategoryObjects.
So when I enter Edit mode... the row shows a nice ddl with the available categories. It even selects the right original category.
So far so good... but when I want to save my new selection, I get an error that a string (the selected category in the ddl) cannot be converted to a Category object (that's what the Book object, that is going to be used for the update, expects).
I was wondering if setting a default value for a SelectList is considered to be presentation logic or business logic? For example, if a requirement is that an Employee cannot be saved without a Location, but 99% of the time the location that would be selected is a particular item -- say Atlanta. Because of this, the location SelectList should be defaulted to Atlanta when ever a entry screen for a new employee is displayed. Should I be defaulting the location in the model or in the view-model? One thing I realized is that the unit tests become awkward because in both cases, I'd be forced to test against a location that will always be present in production but I cannot create a unit test with my own test dataunless "Atlanta" was in the set of locations being used in the test.
I'm working on a dynamic table of contents (toc). The toc is generated from data in a sql database. There are 5 sections in the toc and within each of the five sections, there are a varied number of rows. (Section 1 may have 5 rows, while Section 2 has 12 rows). To help differentiate between the sections, I'd like the ability to add some type of grouping in my gridview. So, it would look like below. Do I just add a different gridview for each section, or is there a way to "categorize" the gridview to break up the data with a Section 1 Category
I have two tables... Laptop category and Laptop details ... Laptop of each category is displayed using Imagebuttons in my website... eg: Dell.HP,Compaq and each category is associated with unique ID like 1 ,2, 3, etc.
Based on this category ID when i click on particular image button it should redirect to another web page ( I ve specified the page in each ImageButton's PostBackUrl property as LaptopDetails.aspx ? catId=1 ....). And in Details page I would like to display the sub models of particular Laptop Category...
for eg Dell has three sub models INSPIRON 1464, INSPIRON 15 and INSPIRON 15R
sub models has to be displayed with image and all the details from the database...
I have a datalist that retreives category names for a knowledge base system I'm working on. When you click to view all the category titles, I want to hide those category titles that don't have any articles associated with that category. So, for example, you click to see all the category titles, but because there isn't any KB articles for "Mice", the "Mice" category isn't visible.
tried this link. that was so interesting [URL]I have two question about thatI haven't got any button with id = btnSubmit in my page.1.
how can I show modal box until page loads at the first time. for example when user writes www.abc.com in addressbar and presses Enter key,I want to appear modal box instead of a (blank white page).I mean at the first page loading without pressing any key. 2.
I have required field validators for txt_username and txt_password andwhen without filling them I click btn_login, modal box appear and I think It will be there in unlimited time unless I return back with back button of browser.
im creating advance search for my project and end up with the problem of select statement format for 2category.
here is example:
i have advancesearch that has checkbox wherein you can select multiple checkbox. example is selecting category, for example ihave 5 category as shown below.
Category
News Sports Opinion Editorial Literary i did tried someformats for my select statements to make it work for 2 or more category, but i just cant get the right format of the select statement.
example if i select the following.
if selected is category 'Sports'
it wil work with this: " 'Select * MyTable1 where [Category Title]='Sports' "
if selected are category 'Sports' and 'News'. what must be the format for my selectstatement for 2 or more category in the same fieldname? should it work with this?
" 'Select * MyTable1 where [Category Title]='Sports','News'" no, how could i make it work. what must be the right format?
What would be the best way to handle the following scenario? I have an application where depending on what type of proceeding is selected, only certain input fields should be visible.
There are 33 proceeding types and 14 input fields in total
First case, make one big form with all of the fields and have a dropdown with proceeding type which depending on what is selected, makes certain fields visible?
I have 2 buttons on a page. 1 does some calculations once data is entered the other, which is at the top clears the page and opens a new one to enter an estimate number and once that is done it opens the calculation page where the 2 buttons are. What is now happening is once the user enters a percent value to do the calculation they just press enter, instead of tab, and it activates the new estimate number button instead of calcualte button. All works in the correct tab order but the default button seems to be the New Estimate button instead of the Calcualte button. any way to change that?
I have a very simple datalist setup to a SQLDatasource. Displaying the data works great. But I want to replace the plain databinder container with a hyperlink instead and have that link setup to point to a detail page with a parameter. Here is my datalist setup: [Code]....
On another page im using gridviews adn able to do what i need by using the RowDataBound of the gridview like so, how can I accomplish the same thing with a datalist? [Code]....
I tried using the ItemDataBound and trying to modify the logic above to fit the datalist, but cant figure out how to, so I have it commented out at the moment. [Code]....
I have the below code that works for an asp.net repeater but I need to convert the logic so it works for an asp.net listview control...possible? Unfortunately, the same code throws errors when placed within my listview's itemdatabound event.
Nested Repeater Issue: Each category list gets populated with the same set of date values rather then being populated with the data associated with that category. Trying to Do: Trying to group FAQ's by category and then list them using the repeaters.
The data is queryed though a business logic layer object that makes a call to the data access layer object. The data access layer object uses linq to sql to return data. There are 3 parameters that are passed into the innerDataSource's ObjectDataSource control to populate the nested repeater control (propID, CatID, isVisible).
With the debugger, the correct data is being returned and written to the nested repeater firing from the nested repeater's ItemDataBound event. Once this event is finished, another event fires and runs the FAQRule object again on the business logic layer which re-populates the nested repeater with the same data for each category. I have 2 repeaters, outerRepater (parent) and innerRepeater(child) with 2 ObjectDataSource controls innerDataSource and outerDataSource. See code below : ASP Page:
