How to call web method in asp.net application

Question

Greetings,

have designed asp.net application ,
Requirement : I have designed web method name "test()" on default.aspx page , want to call on using ajax.

Solution required : how can I call this method from client side using ajax ,jquery call.

Just let me know , where to design web method to be called using Client Side to return json

Images attached for reference:

Thanks

Answer 1

Hi @Mohammad Qasim ,
According to your needs, I wrote an example, you can refer to it.
Default.aspx

    public partial class _Default : Page  
    {  
        protected void Page_Load(object sender, EventArgs e)  
        {  
        }  
        [WebMethod]  
        public static string test(string querytype)  
        {  
            return "{test:\'test\'}";  
        }  
    }  

Default.aspx.cs

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">  
    <div>  
        <asp:Button ID="Button1"  
            Text="Test"  
            OnClientClick="BindTreeview()"  
            runat="server" />  
    </div>  
</asp:Content>  

JS on Default.aspx.cs

Result

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