ObjectDataSource的一些参数的选择，以及使用

 <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetData"
            TypeName="ZWW.BLL.GovermentOpenTreeDateSource" MaximumRowsParameterName="pageSize"
            StartRowIndexParameterName="startIndex" EnablePaging="True" SelectCountMethod="GetTotal"
            DeleteMethod="DeleteGovernmentOpenTree">
            <SelectParameters>
                <asp:ControlParameter ControlID="tb_treename" Name="tree_name" Type="String" />
                <asp:ControlParameter ControlID="ddl_ptreeid" Name="p_tree_id" PropertyName="SelectedValue"
                    Type="Int64" />
                 <asp:QueryStringParameter Name="TMP_ID" QueryStringField="TMP_ID" Type="Int64" />
            </SelectParameters>
            <DeleteParameters>
                <asp:Parameter Name="TREE_ID" Type="Int64" />
            </DeleteParameters>
        </asp:ObjectDataSource>

<SelectParameters>
                <asp:ControlParameter ControlID="tb_treename" Name="tree_name" Type="String" />这是textbox传的值
                <asp:ControlParameter ControlID="ddl_ptreeid" Name="p_tree_id" PropertyName="SelectedValue"
                    Type="Int64" />这是下拉列表传的值

               <asp:QueryStringParameter Name="TMP_ID" QueryStringField="TMP_ID" Type="Int64" />这是跨页传递过来的值（Name是你接受的过来的名）
            </SelectParameters>

<DeleteParameters>
                <asp:Parameter Name="TREE_ID" Type="Int64" />这是ObjectDataSource删除函数中DeleteMethod="DeleteGovernmentOpenTree"

的参数，来源于Gridview的DataKeyNames="TREE_ID"
            </DeleteParameters>