Question

I am trying to change a label value (lblRecipient) inside my Jquery dialog through a hiddenfield but somehow the label value is always empty, here I did a test by assigning a value ‘1234’ and I can get the values in the alert box but the label value itself is empty. Please kindly advice.

function sendPMDialog() {

        $("#PMDialog").dialog('open');
        $("#PMDialog").scrollTop($("#PMDialog").scrollTop() - 1000);

        var Y =  document.getElementById('<%=lblRecipient.ClientID %>').innerText = '1234';
        alert(Y);
    }

Answer 1

You’re doing two assignments in one statement. Try breaking it down into one assignment per statement:

var label = document.getElementById('<%=lblRecipient.ClientID %>');

label.innerText = '1234';
alert(label.innerText);

or (using jQuery syntax):

var label = $('#<%=lblRecipient.ClientID %>');

label.text('1234');
alert(label.text());