Question

How can I set focus on “Amount” textbox on page load for the following Razor code in MVC3?

        <tr>
            <th>
                <div class="editor-label">
                    @Html.LabelFor(model => model.Amount)
                </div>                            
            </th>
             <td>
                 <div class="editor-field">
                    @Html.EditorFor(model => model.Amount)
                    @Html.ValidationMessageFor(model => model.Amount)
                 </div>                          
            </td>
        </tr>

Answer 1

You could provide an additional class to the containing div:

<div class="editor-field focus">
    @Html.EditorFor(model => model.Amount)
    @Html.ValidationMessageFor(model => model.Amount)
</div> 

and then you could use a jQuery class selector:

$(function() {
    $('.focus :input').focus();
});

This being said you seem to have multiple Amount texboxes in a table and obviously only one can have the focus at a time. So assuming you want this to be the first, you could do this:

$('.focus :input:first').focus();