做法：
雙擊GridView的OnRowDataBound事件；在後臺的GridView1_RowDataBound()方法添加代碼，最後代碼如下所示：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int i;
//執行循環，保證每條數據都可以更新
for (i = 0; i < GridView1.Rows.Count; i++)
{
//首先判斷是否是數據行
if (e.Row.RowType == DataControlRowType.DataRow)
{
//當鼠標停留時更改背景色
e.Row.Attributes.Add("onmouseover","c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'"); //當鼠標移開時還原背景色
e.Row.Attributes.Add("onmouseout","this.style.backgroundColor=c"); } } } 前臺代碼： <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>實現鼠標劃過改變GridView的行背景色 清清月兒http://blog.csdn.net/21aspnet</title> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份證號" DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound"> <Columns> <asp:BoundField DataField="身份證號碼" HeaderText="身份證號碼" ReadOnly="True" SortExpression="身份證號碼" /> <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" /> <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" /> <asp:BoundField DataField="郵政編碼" HeaderText="郵政編碼" SortExpression="郵政編碼" /> </Columns> <FooterStyle BackColor="White" ForeColor="#000066" /> <RowStyle ForeColor="#000066" /> <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" /> <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" /> <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" /> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北風貿易ConnectionString1 %>"SelectCommand="SELECT top 5 [身份證號碼], [姓名],[員工性別], [家庭住址], [郵政編碼] FROM [飛狐工作室]" DataSourceMode="DataReader"> </asp:SqlDataSource> </div>
</form>
</body>
</html>