通过SelectedIndexChanged获取当前行

XHTML结构：

<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="false" DataKeyNames="MATNR"
    CellSpacing="0" CellPadding="0" BorderWidth="0" GridLines="None"
    OnSelectedIndexChanged="gvList_SelectedIndexChanged" >
    <Columns>
        <asp:TemplateField HeaderText="操作">
            <ItemTemplate>
                <asp:LinkButton runat="server" ID="lbtnShoppingCart" Text="+加入购物车" OnCommand="lbtn_Command"
                    CommandName="Select" CommandArgument="ShoppingCart">
                </asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

.cs(C#)：

private string CmdArg = string.Empty;

protected void lbtn_Command(object o, CommandEventArgs e)
{
    CmdArg = e.CommandArgument.ToString();
}

protected void gvList_SelectedIndexChanged(object o, EventArgs e)
{
    GridView gv = (GridView)o;
    GridViewRow row = gv.Rows[gv.SelectedIndex];
    switch (CmdArg)
    {
        case "ShoppingCart":
            string _Material = gvList.DataKeys[gvList.SelectedIndex].Value.ToString();
           
            //code here ...

            }//end of if
            break;
    }//end of switch
}