Display message when there is no data

[bakhtawar_ashiq]

I have webmethod and jquery for display chart in pop up … so when i click on search button when there is data then working fine but when there is no data i want to display message “NO Data” in label … and also pop must not display when there is no data how i do this … check i try this code

<div id="divcontainer" style="display: none" align = "center">
<div id="container" class="cont_charts">

</div>

and for pop up

<script type="text/javascript" >
$(function () {
$("#divcontainer").dialog({
modal: true,
autoOpen: false,
title: "Chart",
width: 600,
height: 450
});
$("#search_data").click(function () {
$("#divcontainer").dialog('open');

});
});
</script>

when i try this

success: function (result) {
                debugger;
                var myData = JSON.parse(result.d);
                debugger
                console.log(JSON.parse(result.d));
                debugger;
                if (myData !== null && myData.length == 0) {
                    $("#Label4").text('No data found')
                    return;
                }

                strarr = result.d;
                var myarr = strarr;
                Drewchart(myarr); // here you could pass in myData and drop the JSON.parse in this method
            },

this show not any error but this also not show any message. e.g. No data found

image without data

image with data

[touchtypist]

I think you should try
’
if (myData === null || myData.length == 0) {
’
you should get typeof myData for 1st condition and modify accordingle

[m3g4p0p]

If result.d simply is an empty array when there’s no data,

if (!result.d.length) {
    $("#Label4").text('No data found')
    return;
}

should suffice.