在GridView中自定义输出

                            <asp:TemplateField HeaderText="已读">                    
                                <ItemTemplate>
                                    <asp:Label ID="Label1" runat="server" Text=‘<%# Eval("messageIsRead").ToString()=="False"?"未读":"已读"%>‘></asp:Label>
                                </ItemTemplate>
                            </asp:TemplateField>