如何刷新gridview 而不刷新整页?
我有这段代码:
<asp:Timer ID="Timer1" runat="server" Interval="3600000">
</asp:Timer>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<ContentTemplate>
<asp:Panel ID="Panel1" runat="server" Height="250px" Width="250px">
<asp:GridView ID="Gridview1" runat="server" ></asp:GridView>
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
Gridview1
的数据源应该从代码隐藏(基于实时)填充,例如:
Dim DT As New System.Data.DataTable
Dim reader As SqlCeDataReader
Using myCEConnection As New SqlCeConnection(myCEConnectionString)
myCEConnection.Open()
Using myCommand As SqlCeCommand = myCEConnection.CreateCommand()
myCommand.CommandText = "SELECT ScheduleID FROM Schedule " & _
"WHERE (Hour = '"& Hour(Now) &"')"
reader = myCommand.ExecuteReader()
DT.Load(reader)
End Using
myCEConnection.Close()
End Using
Gridview1.DataSource = DT.DefaultView
Gridview1.DataBind()
{1}}应每1小时更新一次。我尝试了代码,却一无所获。我怎样才能做到这一点?提前谢谢。
答案 0 :(得分:3)
你是否在Timer的Tick事件上写了这段代码?
理想情况下,它应该是Timer的Tick事件。您的计时器没有任何关联的TICK事件。 它应该用ontick事件更新(下面给出的例子):
<asp:Timer ID="timer" runat="server" ontick="timer_Tick"></asp:Timer>