Greetings,
i want to implement ajax timer so it will update an updatepanel every five seconds based on a certain codition so i try the following:
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true">
</asp:ScriptManager>
</div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<asp:Timer ID="Timer1" runat="server" Interval="5000" OnTick="UpdateTime">
</asp:Timer>
in the code behind i write the folowing:
protected void Page_Load(object sender, EventArgs e)
{
Label1.Text = DateTime.Now.ToLongTimeString();
}
protected void UpdateTime(object sender, EventArgs e)
{
if (new Random().Next(0, 4) == 1)
{
UpdatePanel1.Update();
}
}
so what i notice that every five seconds the tick event will happen and the updatepanel1 will be updated regardless of the condition that i implement it in the UpdateTime method ,what is logic since the tick event happens.
so how can i solve this problem??
your help is highly appreciated
best regards
I tested your codes in Visual Studio .Net 2005 with Ajax RC 1.0.Try to change some of your codes as the following and it should work fine.
<div>
<asp:UpdatePanel ID="upnlTimer" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="lblTimer" runat="server" Text="Date Time"></asp:Label>
<asp:Timer ID="Timer1" runat="server" Interval="5000" OnTick="Timer1_Tick">
</asp:Timer>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
</asp:UpdatePanel>
</div>
Wish the above can help you.
Thank you for the support
so what i add only the
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server"ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="UpdateTime"></asp:Timer>
</ContentTemplate>
</asp:UpdatePanel>
</div>
so when i place the timer control within the contenttemplate of the updatepanel so i dont need to put the timer control within the triggers of the updatepanel
so what i conclude that it will not work if i place the timer control outside the update panel.
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