javascript - 为数据表中的第 0 行请求了未知参数 '4'

Question

我在尝试使用 jQuery DataTables 库运行数据表时遇到上述错误。

Requested unknown parameter '4' for row 0.

<div class="container">
<%= render :partial => "layouts/society_nav" %>
<div align="center">
        <h3>Self Help Groups</h3>
</div>
        <%=link_to "New Self Help Groups" ,new_admin_self_help_group_path,:class=>"btn btn-primary btn-new"%>

<table class="datatable table-bordered"> 
    <thead>
        <th></th>
        <th></th>
        <th></th>
        <th></th>
        <th></th>
    </thead>

    <tbody>
        <% @selfhelp.each do |s|  %>
        <tr>
            <td class="thead">No of SHGS</td>
            <td colspan="2"><%= s.no_of_shgs %></td>
            <td> <%= link_to "<span class='glyphicon glyphicon-edit'></span>".html_safe,  edit_admin_self_help_group_path(s) %>
            </td>
            <td> <%= link_to "<span class='glyphicon glyphicon-trash'></span>".html_safe,  admin_self_help_group_path(s), :method => :delete, :title => "Delete?", "data-confirm" => "Do you really want to delete?" %>
            </td>
        </tr>
        <tr>
            <td class="thead">Out of which No of Women SHG</td>
            <td colspan="2"><%= s.no_of_women_shgs %></td>
            <td> <%= link_to "<span class='glyphicon glyphicon-edit'></span>".html_safe,  edit_admin_self_help_group_path(s) %>
            </td>
            <td> <%= link_to "<span class='glyphicon glyphicon-trash'></span>".html_safe,  admin_self_help_group_path(s), :method => :delete, :title => "Delete?", "data-confirm" => "Do you really want to delete?" %> 
            </td>
        </tr>
        <% end %>
    </tbody>
</table>

Answer 1

DataTables 库不支持 colspan在表体中，参见this tech note .

This error can occur if there is a colspan or rowspan in the tbody of the table, which is not supported by DataTables.

但是 DataTables 完全支持 colspan和 rowspan在表格的标题中，假设至少有一个唯一的 <th>对于每一列，请参阅 DataTables complex header example了解更多详情。