asp.net中gridview的显示问题

我正在使用我的

default.aspx中的以下标记显示
GridView
：

<Columns>
  <asp:BoundField DataField="SNo" HeaderText="SNo" />
  <asp:BoundField DataField="ComponentName" HeaderText="Component Name" />
  <asp:BoundField DataField="Size" HeaderText="Size" />
  <asp:BoundField DataField="price" HeaderText="Price" />
  <asp:BoundField DataField="TotalDownloads" HeaderText="Total Downloads" />
  <asp:BoundField DataField="Description" HeaderText="Description" />
</Columns>

但是
GridView
如下所示：


我不明白。为什么要将相同的列渲染两次？
在GridView上设置AutoGenerateColumns=“False”
在GridView上设置AutoGenerateColumns=“False”
如果手动处理列，则设置为
False
？
如果手动处理列，设置为
false
？
设置autogenerateColumns=false
 设置autogenerateColumns=false

var result = (from Component comp in db 
              orderby comp.SNo 
              select new { 
                  SNo = comp.SNo, 
                  ComponentName = comp.ComponentName, 
                  Size = comp.Size, 
                  Price = comp.Price, 
                  TotalDownloads = comp.TotalDownloads, 
                  Description = comp.Description 
               }).ToList();

ComponentGridView.DataSource = result;
ComponentGridView.DataBind();