DataGrid如何点击HeaderText,进行排序

Question

详细:
比如我有一个datagrid,里面绑定了姓名,年龄2列,点姓名时，datagrid按姓名排序，点年龄就按年龄排序关键是如何获得这个事件啊。

Answer 1

HTML代码
<asp:BoundColumn DataField="***" SortExpression="***" HeaderText="***"></asp:BoundColumn>
后台代码
private void Page_Load()
if(!Page.IsPostBack)
{
   this.ViewState["sortType"] ="asc";
   this.ViewState["sortExpess"] ="";
}//数据绑定
private void BindList()
{
   *
   *
   *
   this.myTable.DefaultView.Sort="ID ASC";
   if(this.ViewState["sortExpess"].ToString().Equals("")==false)
      {
this.myTable.DefaultView.Sort= this.ViewState["sortExpess"].ToString() +" "+ this.ViewState["sortType"].ToString();
       }
   this.myTable.AcceptChanges();
   this.DataGrid.DataSource=this.myTable.DefaultView ;
}private void dgList_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
{
    this.ViewState["sortExpess"] = e.SortExpression.ToString();
    if(this.ViewState["sortType"].Equals("asc") )
     {
        this.ViewState["sortType"] = "desc";
     }
    else
    {
       this.ViewState["sortType"] = "asc";
    }
    this.BindList();
}

Answer 2

private void DataGrid_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
{
    this.ViewState["sortExpess"] = e.SortExpression.ToString();
    if(this.ViewState["sortType"].Equals("asc") )
     {
        this.ViewState["sortType"] = "desc";
     }
    else
    {
       this.ViewState["sortType"] = "asc";
    }
    this.BindList();
}