<asp:TemplateField HeaderText="体检结果" SortExpression="Physical_examination_situation">
                                                 <EditItemTemplate>
                                                     <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Physical_examination_situation") %>'></asp:TextBox>
                                                 </EditItemTemplate>
                                                 <ItemTemplate>
                                                     <asp:RadioButton ID="RadioButton2" runat="server" Checked='<%# Bind("Physical_examination_situation") %>'
                                                         GroupName="01" Text="未体检" />
                                                     <asp:RadioButton ID="RadioButton3" runat="server" Checked="True" GroupName="01" Text="合格" />
                                                     <asp:RadioButton ID="RadioButton7" runat="server" Checked='<%# Bind("Physical_examination_situation") %>'
                                                         GroupName="01" Text="不合格" />
                                                 </ItemTemplate>
                                             </asp:TemplateField>

以前没有问题的，，
我做了其它修改以后，重新配置了数据源，，，然后运行时就有错误说：
指定的转换无效.
给的排错提示:
当从一个数字执行强制转换时,值必须是一个小于无限大的数字.
确保源类型可以转换为目标类型.
谢谢！！！！

你的Physical_examination_situation里面保存的是什么啊……
true/false？

Physical_examination_situation是一个列名，指体检情况，类型为bit.


以前没有问题。。修改了数据库后又配置了一次数据源，凡涉及到RadioButton这样的，都出现了同样的错误。
可是数据库的修改并没有涉及到那些列。。
很苦恼！

Physical_examination_situation应该是true或者false这两个值……