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我試圖在發佈後保留變量值。我通過會話變量和Viewstate都嘗試了它,但未能保持隨機數的值相同。每按一次按鈕(頁面刷新後),我都會得到一個新的隨機值,但我想保持相同的值。如何在發佈後保留變量值
//in code behind
public static int RandNumber{ get; set; }
protected void Page_Load(object sender, EventArgs e)
{
//by using session
Session["rand"] = rnd.Next(0, 10);
RandNumber = Int32.Parse(Session["rand"].ToString());
//by view state
int rand = rnd.Next(0, 10);
ViewState["KEY"] = rand;
RandNumber = Int32.Parse(ViewState["KEY"].ToString());
}
用於回傳形式:
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
並試圖在如下頁面訪問:
<p>Random No: <%= RandNumber %></p>