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完成上面的所以步骤后,我们在主页面上的右键菜单上选择"查看代码",可以看到如下的代码: <%@ Page Language="C#" %> <html> <head id="Head1" runat="server"> <title>GridView Bound Fields</title> </head> <body> <form id="form1" runat="server"> <ASP:GridView ID="GridView1" DataSourceID="SqlDataSource1"AutoGenerateColumns="False" runat="server"> <Columns> <asp:BoundField HeaderText="ID" DataField="au_id" ReadOnly="true" /> <asp:BoundField HeaderText="Last Name" DataField="au_lname" /> <asp:BoundField HeaderText="First Name" DataField="au_fname" /> <asp:BoundField HeaderText="Phone" DataField="phone" /> <asp:BoundField HeaderText="Address" DataField="address" /> <asp:BoundField HeaderText="City" DataField="city" /> <asp:BoundField HeaderText="State" DataField="state" /> <asp:BoundField HeaderText="Zip Code" DataField="zip" /> <asp:CheckBoxField HeaderText="Contract" DataField="contract" /> </Columns> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" SelectCommand="SELECT [au_id], [au_lname], [au_fname], [phone],[address],[city], [state], [zip], [contract] FROM [authors]" ConnectionString="<%$ ConnectionStrings:Pubs %>" /> </form> </body> </html> Web.Config中的代码如下: <?XML version="1.0"?> <configuration XMLns="http://schemas.microsoft.com/.netConfiguration/v2.0"> <appSettings/> <connectionStrings> <add name="Pubs" connectionString="Data Source=hoowoo;Initial Catalog=pubs;Integrated Security=True" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web> <compilation debug="false"/> <authentication mode="Windows"/> </system.web> </configuration> 现在来重点分析这些代码的意义: "<asp:GridView ID="GridView1" DataSourceID="SqlDataSource1" AutoGenerateColumns="False" runat="server">" 数据绑定控件通过其 DataSourceID 属性连接到数据源控件,从而我们可以进行排序、分页、筛选、更新、删除和插入等一系列的操作。 "<Columns> <asp:BoundField HeaderText="ID" DataField="au_id" ReadOnly="true" /> <asp:BoundField HeaderText="Last Name" DataField="au_lname" /> <asp:BoundField HeaderText="First Name" DataField="au_fname" /> <asp:BoundField HeaderText="Phone" DataField="phone" /> <asp:BoundField HeaderText="Address" DataField="address" /> <asp:BoundField HeaderText="City" DataField="city" /> <asp:BoundField HeaderText="State" DataField="state" /> <asp:BoundField HeaderText="Zip Code" DataField="zip" /> <asp:CheckBoxField HeaderText="Contract" DataField="contract" /> </Columns>" "BoundField"和"CheckBoxField"均为要绑定的控件类型,"HeaderText"是将要显示在表格上字段的名称,而"DataField"则是我们要进行绑定的数据字段。 <asp:SqlDataSource ID="SqlDataSource1" runat="server" SelectCommand="SELECT [au_id], [au_lname], [au_fname], [phone],[address],[city], [state], [zip], [contract] FROM [authors]" ConnectionString="<%$ ConnectionStrings:Pubs %>" /> SqlDataSource控件中我们设置了数据库的SelectCommand命令为"SELECT [au_id],[au_lname],[au_fname],[phone],[address] [city], [state], [zip], [contract] FROM [authors]"这正好和GridView所要绑定的控件一一对应,这充分说明了数据绑定控件和数据源控件的紧密联系。 细心的读者可能会奇怪了,ConnectionString="<%$ ConnectionStrings:Pubs %>在SqlDataSource是表示什么呢?这个问题就和我们为什么需要Web.Config配置文件有很大的关联了。Web.Config中设置了如下的节点: <connectionStrings> <add name="Pubs" connectionString="Data Source=hoowoo;Initial Catalog=pubs;Integrated Security=True" providerName="System.Data.SqlClient" /> </connectionStrings> 我们可以通过检索Web.Config配置文件来取得数据库连接字符串别名"Pubs"的真正的含义是 "Data Source=hoowoo;Initial Catalog=pubs;Integrated Security=True" providerName="System.Data.SqlClient" Initial Catalog表明我们使用的是"pubs"数据库。Integrated Security说明了我们采用的是Windows验证方式。 最后的显示如下: (出处:源码网)
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