注意两点：
1.要将gridview的AllowSorting属性置为true，同时设置OnSorting事件

2.在OnSorting事件中对排序的列设定SortExpression属性
复制代码 代码如下:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (Session["Admin"] != "admin")
{
//如果会话过期，则应该重新登录
this.Response.Write(" <script language=javascript>alert('你无权访问该页面，请与管理员联系！');window.location.href='../UserLogin.aspx';</script> ");
}

复制代码 代码如下:
ViewState["sortExpression"] = "Isdistribution";
ViewState["sort"] = " ASC";

}
//绑定信息
BindNodeInfo();
}

public void BindNodeInfo()
{
NodeLogic log = new NodeLogic();
DataSet myset = log.GetNodeInfo(); //获取数据源
DataView myview = myset.Tables[0].DefaultView;
myview.Sort = ViewState["sortExpression"].ToString() +" "+ ViewState["sort"].ToString();
this.NodeGridView.DataSource = myview;
NodeGridView.DataKeyNames = new string[] { "node_id" }; //设置主键字段
NodeGridView.DataBind(); //绑定GridView控件
}

protected void NodeGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
this.NodeGridView.PageIndex = e.NewPageIndex;
BindNodeInfo();
}

protected void NodeGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
// 自动给第一列编号
if (e.Row.RowIndex > -1)
{
e.Row.Cells[0].Text = Convert.ToString(e.Row.RowIndex + 1);
}
}

protected void NodeGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
NodeLogic log = new NodeLogic();
int id = int.Parse(this.NodeGridView.DataKeys[e.RowIndex].Values[0].ToString());
if (log.DeleteNodeInfo(id))
{
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "alert('删除成功！');", true);
}
else
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "alert('删除失败！');", true);
//重新更新数据显示
BindNodeInfo();
}

protected void NodemGridView_RowEditing(object sender, GridViewEditEventArgs e)
{

}

protected void AddNode_Click(object sender, EventArgs e)
{
Response.Redirect("AddNode.aspx");
}

protected void NodeGridView_Sorting(object sender, GridViewSortEventArgs e)
{

if (ViewState["sortExpression"] != null)
{
if (ViewState["sort"].ToString() == "Asc")
{
ViewState["sort"] = "Desc";
}
else
{
ViewState["sort"] = "Asc";

}
}
BindNodeInfo();
}