除非指定DeleteMethold，否则 ObjectDataSource“odsNetwork”不支持删除

该问题说明ObjectDataSource的DeleteMethold没有指定。不能进行删除。则在修改代码如下：

错误时的代码：

<asp:ObjectDataSource ID="odsNetwork" runat="server"

                  OldValuesParameterFormatString="original_{0}" SelectMethod="getnetwork"

                  TypeName="gzife.BLL.Network" ></asp:ObjectDataSource>

现在的代码：

     <asp:ObjectDataSource ID="odsNetwork" runat="server"

                  OldValuesParameterFormatString="original_{0}" SelectMethod="getnetwork"

                  TypeName="gzife.BLL.Network"

                  DataObjectTypeName="gzife.Component.NetworkInfo" DeleteMethod="delete" ></asp:ObjectDataSource>