方法一：
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataList1.DataBind();
for(int i=0;i <DataList1.Items.Count;i++)
{
((PlaceHolder)DataList1.Items[i].FindControl( "myPostAdmin" )).Visible = false;
}
}
}
方法二：
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
{
(PlaceHolder)e.Item.FindControl( "myPostAdmin" )).Visible = false;
}
转载于:https://www.cnblogs.com/netkey/articles/1099005.html