FormValidator/java-script-validation.htm at master · rajkumar9795/FormValidator · GitHub

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<html>
<head>
    <title>Girfa : Javascript Validation</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script>
        var Flag = true;
        function Validate() {
            Flag = true;
            if ($("#txtRoll").val() == "")
                AddCss("txtRoll");
            if ($("#ddlClass").val() == "")
                AddCss("ddlClass");
            if ($("#txtMessage").val() == "")
                AddCss("txtMessage");
        }

        function AddCss(id) {

            Flag = false;

            $("#" + id).css("border", "solid 1px red");
            $('#' + id).animate({
                'marginLeft': "+=10px", //moves right
            }, 100);
            $('#' + id).animate({
                'marginLeft': "+=-10px", //moves right
            }, 100);
            $('#' + id).animate({
                'marginLeft': "+=10px", //moves right
            }, 100);
            $('#' + id).animate({
                'marginLeft': "+=-10px", //moves right
            }, 100);
        }
        function RemoveCss(id) {
            $("#" + id).css("border", '');

        }
        function BlurRemoveCss(id) {
            if ($("#" + id).val() != "") {
                RemoveCss(id);
            }
        }
        function SaveData() {
            Validate();
            if (Flag == true) {
                alert("Congratulations Implement your code")
            }
        }
    </script>

</head>
<body>
    <form>
        <table>
            <tr>
                <td align="right"> Roll :</td>
                <td><input type="text" id="txtRoll" onblur="BlurRemoveCss('txtRoll')" /></td>
            </tr>
            <tr>
                <td align="right">  Class : </td>
                <td>
                    <select id="ddlClass" onblur="BlurRemoveCss('ddlClass')">
                        <option value="">Select Course</option>
                        <option value="1">O Level</option>
                        <option value="2">A Level</option>
                        <option value="3">B Level</option>
                        <option value="4">C Level</option>
                    </select>
                </td>
            </tr>
            <tr>
                <td align="right"> Message :</td>
                <td><textarea id="txtMessage" onblur="BlurRemoveCss('txtMessage')"></textarea></td>
            </tr>
            <tr>
                <td colspan="2" align="center"><input type="button" value="Save" onclick="SaveData()" /></td>
            </tr>
        </table>


    </form>
</body>
</html>