Ajax定時器：只執行5次

我有一個ajax Timer控件。它將「+」添加到標籤的文本值。這個計時器只能工作五次，間隔時間爲「1000」，即只有五個「+」應該可用。之後，lblPostbackType 應該用計數更新。我如何實現它？Ajax定時器：只執行5次

public partial class _Default : System.Web.UI.Page 
{ 
static int partialPostBackCount = 0; 
protected void Page_Load(object sender, EventArgs e) 
{ 
    if (IsPostBack) 
    { 
     if (ScriptManager.GetCurrent(this).IsInAsyncPostBack) 
     { 
      partialPostBackCount = partialPostBackCount + 1; 
      lblPostbackType.Text = "Partial Postback:: " + partialPostBackCount.ToString(); 
     } 
     else 
     { 
      lblPostbackType.Text = "Full Postback"; 
     } 
    } 

} 
protected void Timer1_Tick(object sender, EventArgs e) 
{ 
    Label1.Text = Label1.Text + "+"; 
} 
}

而設計的代碼是

<form id="form1" runat="server"> 
<asp:ScriptManager ID="ScriptManager1" runat="server" /> 
<asp:Timer runat="server" ID="Timer1" Interval="1000" OnTick="Timer1_Tick" /> 

<asp:Label runat="server" ID="lblPostbackType" >SAMPLE</asp:Label> 

<asp:UpdatePanel runat="server" ID="TimePanel" UpdateMode="Conditional"> 
    <Triggers> 
     <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" /> 
    </Triggers> 
    <ContentTemplate> 
     <asp:Label runat="server" ID="Label1" /> 
    </ContentTemplate> 
</asp:UpdatePanel> 

</form>

感謝

來源

2012-01-09 Lijo

你真的想回發到服務器只是爲了添加一個'+'到標籤？！學習javascript！ ;） – 2012-01-09 17:11:51

我只是在學習Ajax。假設在實際情況下，我需要從服務器 – Lijo 2012-01-09 17:12:53

@Lijo得到一個值：請考慮選擇答案，如果是的話。 – dotNETbeginner 2012-01-10 17:40:01

試試這個

protected void Timer1_Tick(object sender, EventArgs e) 
{ 


    if (partialPostBackCount > 5) 
     { 
      lblPostbackType.Text = "Partial Postback:: " + 
            partialPostBackCount.ToString(); 
      //Timer1.Enabled = false; //if you don't want it to continue 
     } 
     else 
     { 
      partialPostBackCount = partialPostBackCount + 1; 
      Label1.Text = Label1.Text + "+"; 
     } 

}

*靜態變量，不建議..

保持Page_Load事件方法清潔..

來源

2012-01-09 17:41:49 dotNETbeginner

Ajax定時器：只執行5次

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