GridView里面的内嵌的服务器控件如LinkButton如何传值？

      GridView里面的内嵌的服务器控件如LinkButton如何传值到LinkButton 事件中

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
    CellPadding="4" DataKeyNames="Code" DataSourceID="ObjectDataSource1" ForeColor="#333333"
    GridLines="Vertical" Width="100%" PageSize="6">
    <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <Columns>
        <asp:BoundField DataField="publishType" HeaderText="杂志类型" >
            <ItemStyle HorizontalAlign="Center" />
        </asp:BoundField>
        <asp:BoundField DataField="magCode" HeaderText="杂志编号" />
        <asp:BoundField DataField="Name" HeaderText="杂志名称" />
        <asp:BoundField DataField="Volumn" HeaderText="刊数" SortExpression="Volumn" />
        <asp:BoundField DataField="Code" HeaderText="期刊编号" SortExpression="Code" />
        <asp:CheckBoxField DataField="CanPublish" HeaderText="发布" />
        <asp:BoundField DataField="Category" HeaderText="所属分类" />
        <asp:BoundField DataField="Author" HeaderText="作者" />
         <asp:BoundField DataField="Brief" HeaderText="摘要内容" />
          <asp:TemplateField ShowHeader="False">
            <ItemStyle HorizontalAlign="Center" Width="40px" />
            <ItemTemplate> 
                <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# Doker.WebSite.AppCode.UrlLinks.GetMagazineDetailPreview(Eval("PublishType"),Eval("Code")) %>' Target="_blank">预览</asp:HyperLink>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField ShowHeader="False">
            <ItemStyle HorizontalAlign="Center" Width="40px" />
            <ItemTemplate>
                <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Generate"
                    OnClick="LinkButton1_Click" Text="生成" CommandArgument='<%# Eval("Code") %>'></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField ShowHeader="False">
            <ItemStyle HorizontalAlign="Center" Width="40px" />
            <ItemTemplate>
                <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Publish"
                    OnClick="LinkButton2_Click" Text="发布" CommandArgument='<%# Eval("Code") %>'></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
    <EditRowStyle BackColor="#999999" />
    <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
    <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Left" />
    <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>

      从代码可以看出LinkButton是通过CommandArgument='<%# Eval("Code") %>属性把字段"Code"传给事件。
      在事件中又始何获取CommandArgument的值呢？如下代码：

string _code = ((LinkButton)sender).CommandArgument;

      这边有一个小小的技巧是：点击LinkButton那一行的数据存储在GridViewRow中，然后再能过GridViewRow获取字段值，（注意sender就是LinkButton）代码如下：
      

        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            LinkButton btn = sender as LinkButton;
            GridViewRow row = btn.Parent.Parent as GridViewRow;

            SeedMaker sm = new SeedMaker();

            string publishType = string.Empty;
            string magName = string.Empty;
            string magBtype = string.Empty;
            string magStype = string.Empty;
            string magCode = string.Empty;
            string magVol = string.Empty;
            string volCode = string.Empty;
            string magCate = string.Empty;
            string content = string.Empty;
            string author = string.Empty;

            publishType = row.Cells[0].Text;
            magCode = row.Cells[1].Text;
            magName = row.Cells[2].Text;
            magVol = row.Cells[3].Text;
            volCode = row.Cells[4].Text;
            magCate = row.Cells[6].Text;
            author = row.Cells[7].Text;
            content = row.Cells[8].Text;
}