JavaScript using jquery Call server-side Method sample code _javascript Tips

How to prepare the server side

[System.Web.Services.WebMethod]
public static string Veryusername (string name)
{
string rtn = "Congratulations, this account is not yet registered, you can use." ";

if (name = = "")
Rtn = "Please fill out a registered account number." ";

if (name = = "Insus.net")
RTN = "This user is already registered, please use a different account number." "; 

return RTN;
}

HTML code:

<asp:textbox id= "Textboxaccount" runat= "Servers" ></asp:textbox><br/> <input ID=
"BtnrReg" Type= "button" value= "register" onclick= "Veryregaccount ()"/>

JavaScript script:

 <script src= "Scripts/jquery-1.3.2.min.js" type= "Text/javascript" ></script > <script type= "text/javascript" > Function Veryregaccount () {$.ajax ({type: "POST", url: "Default.aspx/very UserName ", data: ' {name: ' + $ (" #<%= textboxaccount.clientid%> ") [0].value + '"} ', ContentType: "Application/json ; 
Charset=utf-8 ", DataType:" JSON ", Success:onsuccess, Failure:function (response) {alert (RESPONSE.D); 
} 
}); 
function onsuccess (response) {alert (RESPONSE.D); } </script>