计时器刻度不增加时间间隔的值

我想增加计时器滴答事件的值，但它没有增加，不知道我忘记了什么，它只显示1.

<asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="1000"></asp:Timer>

private int i = 0;

protected void Timer1_Tick(object sender, EventArgs e)
{
    i++;

    Label3.Text = i.ToString();
}

您可以使用 ViewState 来存储然后读取值i again.

int i = 0;

protected void Timer1_Tick(object sender, EventArgs e)
{
    //check if the viewstate with the value exists
    if (ViewState["timerValue"] != null)
    {
        //cast the viewstate back to an int
        i = (int)ViewState["timerValue"];
    }

    i++;

    Label3.Text = i.ToString();

    //store the value in the viewstate
    ViewState["timerValue"] = i;
}