摘要:取得 PostBackUrl 轉來的網頁資料
-------------------------------------------A 網頁----------------------------------------------------
<asp:Button ID="Button1" runat="server" Text="A1" OnClick="Button1_Click" PostBackUrl="~/shopping/addCommodity.aspx"/>
-------------------------------------------A 網頁----------------------------------------------------
	public partial class shopping_ManageCommodity : System.Web.UI.Page
	{
	    protected void Page_Load(object sender, EventArgs e)
	    {}
	    protected void Button1_Click(object send, EventArgs e)
	    { }
public string GetString()
{
string strTemp = TextBox1.Text;
return strTemp;
}
	
	}
-------------------------------------------B 網頁----------------------------------------------------
<%@ PreviousPageType VirtualPath="~/shopping/ManageCommodity.aspx" %>
-------------------------------------------B 網頁----------------------------------------------------
	       // Label1.Text = ((shopping_ManageCommodity)PreviousPage).GetTextBox; 
	        Label1.Text = PreviousPage.GetString();
