谁能解释一下

Question

<asp:datagrid id=DataGrid1 runat="server" AutoGenerateColumns="False" BorderStyle="Dotted" BorderWidth="1px" Height="80px" Width="667px" DataMember="userlist" DataKeyField="id" DataSource="<%# dset1 %>" OnPageIndexChanged="DataGrid1_SelectedIndexChanged" AllowPaging="True" PageSize="15">
<AlternatingItemStyle BorderWidth="1px" BorderStyle="Groove"></AlternatingItemStyle>
<Columns>
<asp:HyperLinkColumn DataNavigateUrlField="username" DataNavigateUrlFormatString="index.aspx?user={0:G}"
DataTextField="username" HeaderText="用户名称"></asp:HyperLinkColumn>
<asp:HyperLinkColumn DataNavigateUrlField="Email" DataNavigateUrlFormatString="mailto:{0:G}" DataTextField="Email"
HeaderText="电子邮件"></asp:HyperLinkColumn>
<asp:HyperLinkColumn DataNavigateUrlField="url" DataNavigateUrlFormatString="{0:G}"
DataTextField="sitename" HeaderText="主页名称"></asp:HyperLinkColumn>

<asp:BoundColumn DataField="qq" SortExpression="qq" HeaderText="qq"></asp:BoundColumn>
<asp:BoundColumn DataField="counts" SortExpression="counts" HeaderText="留言条数"></asp:BoundColumn>
</Columns>
<PagerStyle NextPageText="下一页" PrevPageText="上一页" HorizontalAlign="Right"></PagerStyle>
</asp:datagrid>怎么理解 DataNavigateUrlField="Email" DataNavigateUrlFormatString="mailto:{0:G}" DataTextField="Email

Answer 1

DataNavigateUrlField="Email" 数据字段DataNavigateUrlFormatString="mailto:{0:G}"  url格式，0:G代表数据显示格式
DataTextField="Email 显示文字字段