上面的例子拷贝就能执行出结果，你怎么说不行呢？你测试了吗？不行我能贴出去吗？
说实在的，方法还是很多的，不要使用你所采用的oldvalues和newvalues。你可以放一个隐藏的文本框，也可以将作为键值处理。，下面是一种解决方法
<%@ Page Language="C#" ValidateRequest="false" Debug="true" EnableViewState="True" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<script runat="server">
SqlConnection conn;
String ConnectionString = "Data Source=192.168.3.1;Initial Catalog=NorthWind;Persist Security Info=True;User ID=sa;Password=xxxx";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
}
protected void bind()
{
string sqlstr1;
sqlstr1 = "SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]";
conn = new SqlConnection(ConnectionString);
SqlDataAdapter sda2 = new SqlDataAdapter(sqlstr1, conn);
DataSet ds2 = new DataSet();
conn.Open();
sda2.Fill(ds2, "e_station");
GridView1.DataSource = ds2;
GridView1.DataKeyNames = new string[] { "CategoryID", "CategoryName" };
GridView1.DataBind();
conn.Close();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridView gv = (GridView)sender;
for (int i = 0; i < GridView1.Columns.Count; i++)
{
DataControlFieldCell cell = gv.Rows[e.RowIndex].Cells[i] as DataControlFieldCell;
gv.Columns[i].ExtractValuesFromCell(e.NewValues, cell, DataControlRowState.Edit, true);
}
string oldTableName = "旧值：";
string newTableName = "新值：";
oldTableName += gv.DataKeys[e.RowIndex].Values["CategoryName"].ToString();
newTableName += e.NewValues["CategoryName"].ToString();
Label3.Text = oldTableName;
Label4.Text = newTableName;
GridView1.EditIndex = -1;
bind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating"
OnRowCancelingEdit="GridView1_RowCancelingEdit" EnableViewState="true">
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<Columns>
<asp:BoundField DataField="CategoryID" HeaderText="CategoryID" ReadOnly="True" />
<asp:BoundField DataField="CategoryName" HeaderText="CategoryName" />
<asp:BoundField DataField="Description" HeaderText="Description" ReadOnly="True" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
</Columns>
<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:Label ID="Label3" runat="server"></asp:Label>
<asp:Label ID="Label4" runat="server"></asp:Label>
</form>
</body>
</html>
