本文实例讲述了asp.net更新指定记录的方法。分享给大家供大家参考。具体方法如下：
我们先来看html页面：
<form id="form1" runat="server">
<div style="text-align: center">
<table style="width: 302px; height: 246px;">
<tr>
<td colspan="2" style="width: 496px">
<asp:Label ID="Label2" runat="server" Text="更新指定数据" Font-Bold="True" ForeColor="Blue" Width="132px"></asp:Label></td>
</tr>
<tr>
<td colspan="2" style="width: 496px">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" Font-Size="Smaller" ForeColor="#333333" GridLines="None">
<Columns>
<asp:BoundField DataField="商品编号" HeaderText="商品编号" />
<asp:BoundField DataField="商品名称" HeaderText="商品名称" />
<asp:BoundField DataField="商品数量" HeaderText="商品数量" />
<asp:BoundField DataField="商品单价" HeaderText="商品单价" />
<asp:HyperLinkField DataNavigateUrlFields="商品编号" DataNavigateUrlFormatString="Default.aspx?商品编号={0}"
HeaderText="更新" Text="更新" />
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
</td>
</tr>
<tr>
<td colspan="2" style="width: 496px" align="center">
</td>
</tr>
<tr>
<td colspan="2" style="width: 496px">
<asp:Label ID="Label3" runat="server" Font-Size="Smaller" Text="商品名称：" Width="65px"></asp:Label><asp:TextBox ID="TxtName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<asp:Label ID="Label4" runat="server" Font-Size="Smaller" Text="商品数量："></asp:Label>
<asp:TextBox ID="TxtNum" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td colspan="2">
<asp:Label ID="Label5" runat="server" Font-Size="Smaller" Text="商品单价："></asp:Label>
<asp:TextBox ID="TxtPrice" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td colspan="2" style="width: 496px">
<asp:Button ID="BtnUpdate" runat="server" OnClick="BtnUpdate_Click" Text="更新" Width="55px" /></td>
</tr>