★CheckBox绑定问题★
想实现将表中字段的值绑定到对应的CheckBox,即：如果字段值为1，则对应CheckBox为选中状态；如果值为0，则对应CheckBox为非选中状态。我用以下方法可调试时，执行到powersView.Checked;
出错：CS0201: 只有 assignment、call、increment、decrement 和 new 对象表达式可用作语句

***.aspx.cs:
 private void PowersBind()
  {
  string users_Name = userslist.SelectedItem.Text.ToString();
  Users users = new Users();
  DataRow dr = users.GetPowersLoad(users_Name);
  if(dr!=null)
  {
  if (dr["powers_View"].ToString() == "1")
  {
  powersView.Checked; }
  if (dr["powers_Add"].ToString() == "1")
  {
  powersAdd.Checked;
  }
  if (dr["powers_Modi"].ToString() == "1")
  {
  powersModi.Checked;
  }
  if (dr["powers_Del"].ToString() == "1")
  {
  powersDel.Checked;
  }
  if (dr["powers_Check"].ToString() == "1")
  {
  powersCheck.Checked;
  }
  }

  }

***.aspx:
<table style="width: 627px" border="1" cellpadding="0" cellspacing="0">
  <tr>
  <td style="width: 130px; background-color: #eeeeee;">
  <asp:Label ID="Label1" runat="server" Text="用户名"></asp:Label></td>
  <td style="background-color: #eeeeee">
  <asp:Label ID="Label2" runat="server" Text="浏　览"></asp:Label></td>
  <td style="background-color: #eeeeee">
  <asp:Label ID="Label3" runat="server" Text="添　加"></asp:Label></td>
  <td style="background-color: #eeeeee">
  <asp:Label ID="Label4" runat="server" Text="修　改"></asp:Label></td>
  <td style="background-color: #eeeeee">
  <asp:Label ID="Label5" runat="server" Text="删　除"></asp:Label></td>
  <td style="background-color: #eeeeee">
  <asp:Label ID="Label6" runat="server" Text="审　批"></asp:Label></td>
  </tr>
  <tr>
  <td align="center" style="width: 130px">
  <asp:DropDownList ID="userslist" runat="server" CssClass="DropDownList" Width="119px" AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="users_Name" DataValueField="users_Id">
  </asp:DropDownList></td>
  <td align="center">
  <asp:CheckBox ID="powersView" runat="server" /></td>
  <td align="center">
  <asp:CheckBox ID="powersAdd" runat="server" /></td>
  <td align="center">