Try to find some information about what they call "AJAX". It's about using client-side asynchronous Javascript calls to make server requests and update content without page postback.
It would be better if the simplified MS AJAX framework had something you could use of course, but I don't know. UpdatePanel looks promising. And btw Javascript have nothing to do with Java, they are different programming languages.
Moving the button into the UpdatePanel is one option, another is to add it to the UpdatePanels Triggers list for async postback.
When trying this first I just added the panel to a new page in an existing project, the page appeared otherwise to be working, but with full postbacks either way. I noticed IE displayed the JS error icon and turned on script error messages, so there was a "Sys is undefined" error. Solution was to start a new "ASP.NET AJAX-Enabled Web Site" project, the AJAX-framework need some stuff in the Web.Config to work.
Moving the button into the UpdatePanel is one option, another is to add it to the UpdatePanels Triggers list for async postback.
When trying this first I just added the panel to a new page in an existing project, the page appeared otherwise to be working, but with full postbacks either way. I noticed IE displayed the JS error icon and turned on script error messages, so there was a "Sys is undefined" error. Solution was to start a new "ASP.NET AJAX-Enabled Web Site" project, the AJAX-framework need some stuff in the Web.Config to work.
I've been using ASP.NET AJAX since it was in Beta & named Atlas. It is possible to do what you're asking. Placing the button in the UpdatePanel should solve your problem.
Currently, the first video on the AJAX.ASP.NET site shows an example for a To Do list and should give you some insight.
It also have a reference to System.Web.Extensions I see now, it's in the .Net assemblies list of the Add Reference dialog.the AJAX-framework need some stuff in the Web.Config to work.
It also have a reference to System.Web.Extensions I see now, it's in the .Net assemblies list of the Add Reference dialog.
It is not referenced in my "ASP.NET AJAX-Enabled Web Site" project.Do you think I would need to add the one that says System.Web.Extensions.Design also?