Auto focus on the first textbox and tab on the entery key

曹恩
2023-12-01

<head runat="server">
    <title></title>
    <script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            $('input:text:first').focus();//use $('input:text:first') selector to retrieve a handle to the first ASP.NET TextBox
            $('input:text').bind("keydown", function (e) {//Use bind to attach an event handler for "keydown" event on all the TextBoxes in the form
                if (e.which == 13) {//Check if the Enter key is pressed
                    var nextIndex = $('input:text').index(this) + 1;
                    if ($('input:text')[nextIndex] != null) {
                        e.preventDefault(); //If the Enter key is pressed, prevent default form submission

                        $('input:text')[nextIndex].focus();//Increment the index of the current TextBox by 1 to retrieve the handle to the immediately next TextBox on the form
                    }
                }
            })
            $('#btnReset').click(function () {
                $('form')[0].reset();
            })
        })
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table>
            <tr>
                <td>
                    <asp:Label ID="lblName" runat="server" Text="Name:"></asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="txtName" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="lblAddress" runat="server" Text="Address:"></asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="txtAddress" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="lblNumber" runat="server" Text="Number:"></asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="txtNumber" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="lblEmail" runat="server" Text="Email:"></asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Button ID="btnSubmit" runat="server" Text="Submit" />
                    <asp:Button ID="btnReset" runat="server" Text="Reset" />
                    <input type="reset" value="reset" />
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>

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