Change event function in JS is not working properly ?

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I am trying to show a message on change event through JS. first time it works but for the second time it doesn't appear . I checked it in debugging mode Change event occurs but the message doesn't appear.

What I have tried:

My code in HTML:

<div class="row">
    <div class="col-md-8 offset-sm-1 showMsg">
        <label id="msg"></label>
    </div>
</div>

<div class="col-lg-12 col-xl-8 col-md-8  col-sm-8 col-xs-12">
                            @Html.DropDownListFor(x => x.rat_starting, list, "--Select List--", new { @class = "form-control", @id = "rat_starting" })
                            @Html.ValidationMessageFor(model => model.rat_starting, "", new { @class = "text-danger" })
                        </div>

<div class="col-lg-12 col-xl-8 col-md-8  col-sm-8 col-xs-12">
                            @Html.DropDownListFor(x => x.rat_ending, list, "--Select List--", new { @class = "form-control", @id = "rat_ending" })
                            @Html.ValidationMessageFor(model => model.rat_ending, "", new { @class = "text-danger" })
                        </div>

My code in JS:

$('#rat_ending').on('change', function () {
    var start = $('#rat_starting').val();
    var end = $('#rat_ending').val();//data("kendoDropDownList").value();
    if (end <= start) {
        Alertmessage();
    }
});

function Alertmessage()
{
    $('.showMsg').hide();
    $('#msg').empty();
    $('#msg').html('End Index Must be greater than Start Index.');
    $("#msg").css("color", "red");
    $('.showMsg').show();
    $('#msg').fadeOut(5000);
}

Posted 30-Jan-20 19:26pm

Axxiiim

Updated 31-Jan-20 1:14am

v2

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Comments

F-ES Sitecore 31-Jan-20 5:38am

Where is the element with an id of "msg"?

Axxiiim 31-Jan-20 6:26am

code updated please have a look

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F-ES Sitecore · Accepted Answer · 2020-01-31T01:15:00

When the msg has finished the fadeOut animation it is hidden, and there isn't anything in your code to show it again, so it remains hidden. "fadeOut" just animates from the current visibility to not shown, but if it is already not shown then it has nothing to do, it remains not shown.

The update below stops the animation if it is currently running (stop), resets the opacity (fadeIn) then starts the fadeOut again.

JavaScript

function Alertmessage()
{
    $('.showMsg').hide();
    $('#msg').empty();
    $('#msg').html('End Index Must be greater than Start Index.');
    $("#msg").css("color", "red");
    $('#msg').stop();
    $('#msg').fadeIn();
    $('.showMsg').show();
    $('#msg').fadeOut(5000);
}