18 December 2012

Javascript Empty validation in Asp.net


Javascript Empty validation

function CheckEmpty() {

           try {
               if (document.getElementById("txtClientNumber").value.trim() == "") {
                   alert("Must enter a Client Number");
                   return false;
               }
           }
           catch (e) {
           }
       }
     

calling javascript from server side
btnAdd.Attributes.Add("onclick", "return CheckEmpty();")



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