You'll have many ways to check if the user select one or more items:
+ Use the server side code to count the number of the selected checkboxes in the Items collection.
+ Keep using the radiobuttonlist, but may consider adding another checkbox and place it right at the beggining of the category name to give the user an option to not choose any item.
Try doing a search on this site or elsewhere. Threading is a common knowledge area, you should find plenty of examples. Be warned though, you may actually have to do some reserch, thinking and work on your own.
I have performed two way sorting on Datagrid and its working very smoothly(When we first click on header of any column, grid wil b sorted in Acsending Order and when we clcik second time on column header, grid will be sorted in descending order).
Now what I need is that there should be two Arrows Up/Down with each header of Datagrid, Now if we click on Down Arrow the Grid should be sort in Descending Order and When we click on Up Arrow datagrid should be sorted in Ascending Order.
Thanks for your reply BUT this all I have done, I need to have two Arrow Buttons with each Column Header and when user click on Up Arrow grid should be sorted in Ascending order and vice versa. I hope its clear now...
I am told to convert all the response which is coming from server which is in aspx format to html format and then display. the purpose of doing like this is to increase the browsing speed. All the link in the web page is linked to their respective .html files. Can anyone tell me how to do this.
If you want to speed up the site there are other steps you can take. Try reading "Speed Up Your Site" by these guys: http://www.websiteoptimization.com/speed/. This book is really good even though it is a couple years old. It's worth the read.
In .net you can disable viewstates if your are not using them and try to keep your control IDs shorter. The less characters that are sent to the client the faster the site will be.
Although, if your .aspx pages are NOT "doing" anything then static HTML pages would be faster as it won't have to process any code server side.
I know its possible to provide security for ASP.NET webservice through Security settings provided by IIS. But I would like to know how to secure each individual [WebMethods] methods requset that arrive from disparate client.
In traditional ASP, we always had the Application object to store application-wide variables in. This of course came at the price of memory allocations. In .NET we can now take advantage of Static Variables, which in most cases can be faster than accessing the Application object.
In .NET, most objects are actually classes, and Global.asax is no exception. To take advantage of this, we first have to give our Global.asax a Classname. We do this by adding the directive naming mine 'MyGlobals':
<%@ Application Classname="MyGlobals" %>
Then, we specify our Static Variable inside the script tags, using the 'Public' and 'Shared' keywords in the Global.asax:
Public Shared sGreeting as String = "Visit HarrisonLogic.com!"
Public Static String sGreeting = "Visit HarrisonLogic.com!"
Now that we have the variable 'sGreeting' set up, we can call it directly from our .aspx page using the Class name and the Variable name:
x = MyGlobals.sGreeting
But in case of at some sitiations you may need to acces certain data with respect to the applications like storing number of hit counts for the application.
1) Static variables cannot persist its value after server post backs.
2) But Application object will persist its value after server post backs