<ItemTemplate>
        <tr class="tr_Item" style="<%#Eval("Blue") %>" >
        <td><%#Eval("UserName") %></td>
        <td><%#Eval("Password") %></td>
        <td><%#Eval("NickName") %></td>
        <td><%#Eval("SexName") %></td>
        <td><%#Eval("birthdayn" )%></td>
          <td><%#Eval("Age" )%></td>
        <td><%#Eval("NationName") %></td>
          <td><asp:Button ID="Button1" runat="server" Text="删除" CommandName="delete" CommandArgument='<%#Eval("UserName") %>'/>
            <asp:Button ID="Button2" runat="server" Text="修改" CommandName="xiugai" CommandName="delete" CommandArgument='<%#Eval("UserName") %>' />
          </td>
          
          </tr>
      </ItemTemplate>

 if (e.CommandName == "delete")//删除按钮
    {
      new UserDA().delete(e.CommandArgument.ToString());
      Repeater1.DataSource = new UserDA().select();
      Repeater1.DataBind();
    }
    if (e.CommandName == "xiugai")
    {
      new UserDA().select(e.CommandArgument.ToString());
      Repeater1.DataSource = new UserDA().select();
      Repeater1.DataBind();
    }