how to display error messgae in javascript code function onsucc

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C#

hi sir this is siva , i am search for how to print error messsage my c# class return string message

Posted 28-Dec-14 23:34pm

MUDDAKA SIVA NAGA RAJU

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ridoy 29-Dec-14 5:36am

not clear.

MUDDAKA SIVA NAGA RAJU 29-Dec-14 5:40am

$("#btnStartChat").click(function () {

var name = $("#txtNickName").val();
var pass = $("#txtPassword").val();

if (name.length > 0 && pass.length > 0) {
// <<<<<-- ***** Return to Server [ Connect ] *****
var msg = chatHub.server.connect(name, pass);
//here onsucc

}
else {
alert("Please Insert UserName and Password");
}

});

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Suvendu Shekhar Giri · Answer 1 · 2014-12-29T00:00:00

JavaScript

$("#btnStartChat").click(function () {
 
var name = $("#txtNickName").val();
var pass = $("#txtPassword").val();
 
if (name.length > 0 && pass.length > 0) {
   var msg="";
   msg='<%= CheckExistance(name,pass) %>';
   if(msg.trim()=="")
   {
     alert("Success !");
   }
   else
   {
     alert(msg);
   }
}
else 
{
   alert("Please Insert UserName and Password");
} 
});

Codebehind:

C#

public String CheckExistance()
	{
                //logic to check whether credentials are true or not
                //if(not exists)
		//return "Error message";
                //else
                // return blank string
	}

Note: I haven't executed the program. Please check once and in case it doesn't work, let me know :)