在RowCommand事件中获取索引值示例代码

protected void lpg_RowCommand(object sender, GridViewCommandEventArgs e)

{

if (e.CommandName == "ItemCollect")
{
GridViewRow gvr = (GridViewRow)(((LinkButton)(e.CommandSource)).NamingContainer);
LinkButton lk = lpgKnowledgeExchange.Rows[gvr.RowIndex].FindControl("lbtnCollect") as LinkButton;

}

}