gridview关联个数不定的字段

1、通过引导界面进行数据源的设置

2、注释html中该数据源对字段的定义，将下面文字删除，清空对字段的定义

                 <Columns>
                <asp:BoundField DataField="number" HeaderText="number" SortExpression="number" />
                <asp:BoundField DataField="spcode" HeaderText="spcode" SortExpression="spcode" />
                <asp:BoundField DataField="ringid" HeaderText="ringid" SortExpression="ringid" />
                <asp:BoundField DataField="ringfee" HeaderText="ringfee" SortExpression="ringfee" />
                <asp:BoundField DataField="buydate" HeaderText="buydate" SortExpression="buydate" />
                <asp:BoundField DataField="opertype" HeaderText="opertype" SortExpression="opertype" />
                <asp:BoundField DataField="opermode" HeaderText="opermode" SortExpression="opermode" />
                <asp:BoundField DataField="ori" HeaderText="ori" SortExpression="ori" />
                <asp:BoundField DataField="area" HeaderText="area" SortExpression="area" />
                <asp:BoundField DataField="c_g" HeaderText="c_g" SortExpression="c_g" />
                <asp:BoundField DataField="areatype" HeaderText="areatype" SortExpression="areatype" />
            </Columns>

3、注释html中对sqlcommand的定义，将SelectCommand="select top 10 * from s50spbuyrings02">修改为

     SelectCommand="">

4、在.cs中完成对SqlDataSource1.SelectCommand的赋值。

 

在本文中，如果不将默认定义的字段删除，在.cs文件中，重新定义全新的字段，会报错误，没有找到默认定义字段的值。