Display RequiredFieldValidator Error Messages on pressesing TAB key using JavaScript

Hi sambath,

Please take reference to the below code and correct your code. You need to used JavaScript on blur function for validate on pressing tab key.

HTML

<table>
    <tr>
        <td class="auto-style1">
            பெயர்
        </td>
        <td class="auto-style1">
            <asp:TextBox ID="txtnamet" runat="server" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtnamet"
                position="absolute" ErrorMessage="Enter the Name" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td class="auto-style1">
            தகப்பனார் பெயர்
        </td>
        <td class="auto-style1">
            <asp:TextBox ID="txtfnamet" runat="server" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtfnamet"
                ErrorMessage="Enter the First Name" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td class="auto-style1">
            தாத்தா பெயர்
        </td>
        <td class="auto-style1">
            <asp:TextBox ID="txtgnamet" runat="server" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="txtgnamet"
                ErrorMessage="Enter the Last Name" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td>
            வீட்டு முகவரி
        </td>
        <td>
            <asp:TextBox ID="txtaddt" runat="server" Rows="3" TextMode="MultiLine" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ControlToValidate="txtaddt"
                ErrorMessage="Enter the Address" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td>
            ஏரியா
        </td>
        <td>
            <asp:TextBox ID="txtareat" runat="server" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator9" runat="server" ControlToValidate="txtareat"
                ErrorMessage="Enter the Area" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td class="auto-style1">
            லாண்ட்மார்க்
        </td>
        <td class="auto-style1">
            <asp:TextBox ID="txtlnmt" runat="server" CssClass="tamilfont"></asp:TextBox>
            <asp:RequiredFieldValidator ID="RequiredFieldValidator11" runat="server" ControlToValidate="txtlnmt"
                ErrorMessage="Enter the Landmark" Display="Dynamic"></asp:RequiredFieldValidator>
        </td>
    </tr>
    <tr>
        <td>
            <asp:Button ID="btnSubmit" runat="server" OnClick="btnregister_Click" Text="Submit" />
        </td>
    </tr>
</table>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
    $(function () {
        $('.tamilfont').on('blur', function () {
            ValidatorValidate($(this).closest('td').find('SPAN').get(0));
        });
    });
</script>

Screenshot