为什么在HTML按钮执行C＃代码时重新加载页面

Question

I have html form which default value is display:none.
Im showing it with jquery.
There is button with C# code behind. When its executing page is reloading and my form is disappearing(display:none). How i can execute c# code without page reload ?

Answer 1

Your c# code is server side and the page reloads to be able to call it. If you don't want that you'll need to use some AJAX.

See this tutorial: http://www.asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajax

Answer 2

Is all of your code in the Page_Load section? Each time you make a callback the Page_Load runs. To stop certain things from happening each time you make a callback you can put them in something like

if (!Page.IsCallback && !Page.IsPostBack)
{
    //this code will only be run the first time the page is loaded.
}