asp.net gridview美化

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"<br />DataKeyNames="msgid" DataSourceID="SqlDataSource1" BackColor="#DDDDDD"<br />BorderStyle="None" BorderWidth="1px" CellPadding="5" CellSpacing="1"<br />GridLines="None" style="line-height:22px; width:100%;" AllowPaging="True"><br /><RowStyle BackColor="#ffffff" ForeColor="Black" /><br /><Columns><br /><asp:TemplateField><br /><HeaderTemplate><br /> <asp:CheckBox ID="CheckBox1" runat="server" Text="全 選"<br />oncheckedchanged="CheckBox1_CheckedChanged" AutoPostBack="true" /><br /></HeaderTemplate><br /><ItemTemplate><br /><asp:CheckBox ID="CheckBox2" runat="server" /><br /> </ItemTemplate><br /><ItemStyle Width="60px" /><br /> </asp:TemplateField><br /><asp:BoundField DataField="user1" HeaderText="寄件者" SortExpression="user1" ><br /><ItemStyle Width="100px" /><br /></asp:BoundField><br /><asp:TemplateField HeaderText="主 題" SortExpression="msgtitle"><br /> <EditItemTemplate><br /> <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("msgtitle") %>'> </asp:TextBox><br /></EditItemTemplate><br /><ItemTemplate><br /><a href=' realmail.aspx?mailid=<%#Eval("msgid") %>'> <%#Eval("msgtitle") %> </a><br /></ItemTemplate><br /> </asp:TemplateField><br /><asp:BoundField DataField="sendtime" HeaderText="時 間"<br />SortExpression="sendtime" ><br /><ItemStyle Width="150px" /><br /></asp:BoundField><br /><asp:TemplateField HeaderText="操 作"><br /> <ItemTemplate><br /> 回複 <br /><asp:LinkButton ID="LinkButton1" runat="server" CommandName="Delete" >刪除</asp:LinkButton><br /></ItemTemplate><br /><ItemStyle Width="60px" /><br /></asp:TemplateField><br /></Columns><br /> <FooterStyle BackColor="#CCCCCC" ForeColor="Black" /><br /><PagerStyle BackColor="#ffffff" HorizontalAlign="left" /><br /><HeaderStyle BackColor="#efefef" Font-Bold="True" /><br /><AlternatingRowStyle BackColor="#f7fafe" /><br /></asp:GridView><br />