我从这个fullcalender网站获得了输出，但是当我刷新网站时，相同的数据仍然被添加到这个fulcalender。如何解决这个问题？
Public Shared Function GetEvents() As IList
Try
Dim sqlCS As String = "Data Source=" & DatabaseServerName & ";initial catalog=" & DatabaseCatalog & ";User ID=" & DatabaseServerUser & ";PASSWORD=" & DatabaseServerPass
SqlCn = New SqlClient.SqlConnection
SqlDA = New SqlClient.SqlDataAdapter
SqlCn.ConnectionString = sqlCS
If SqlCn.State = ConnectionState.Closed Then SqlCn.Open()
SqlCMD = New SqlCommand("SELECT distinct Cust_FNameA, Cust_dob FROM NewCus where DATEDIFF(DAY, GETDATE(), DATEADD(YEAR, DATEDIFF(YEAR, Cust_dob, GETDATE()), Cust_dob)) BETWEEN 0 AND 30", SqlCn)
SqlDA.SelectCommand = SqlCMD
SqlDA.Fill(dt2)
Dim events As IList = New List(Of [Event])
For k As Integer = 0 To DateTime.DaysInMonth(DateTime.Now.Year, DateTime.Now.Month)
events.Clear()
HttpContext.Current.Session("mydata") = dt2
Dim dtt As DataSet = DirectCast(HttpContext.Current.Session("mydata"), DataSet)
For Each r As DataRow In dtt.Tables(0).Rows
Dim dt As DateTime = CDate(r("Cust_dob")).ToString("MM-dd")
Dim s As String = dt.Day.ToString()
Dim s1 As String = dt.Month.ToString()
If DateTime.Now.AddDays(k).ToString("MM-dd") = dt Then
events.Add(New [Event]() With { _
.EventName = r("Cust_FNameA").ToString() + " _ " + "عيد ميلاد", _
.StartDate = DateTime.Now.AddDays(k).ToString("MM-dd-yyyy"), _
.EndDate = DateTime.Now.AddDays(1).ToString("MM-dd-yyyy") _
})
End If
Next
Next
Return events
Catch ex As Exception
Finally
SqlCMD.Dispose()
SqlDA.Dispose()
End Try
的
$(document).ready(function () {
$.ajax({
type: "POST",
contentType: "application/json",
data: "{}",
url: "FullCalender.aspx/GetEvents",
dataType: "json",
success: function (data) {
$('div[id*=fullcal]').fullCalendar({
header: {
left: 'prev,next today',
center: 'title',
right: 'month,agendaWeek,agendaDay'
},
editable: true,
events: $.map(data.d, function (item, i) {
var event = new Object();
event.id = item.EventID;
event.start = new Date(item.StartDate);
event.end = new Date(item.EndDate);
event.title = item.EventName;
event.url = item.Url;
event.ImageType = item.ImageType;
return event;
}), eventRender: function (event, eventElement) {
if (event.ImageType) {
if (eventElement.find('span.fc-event-time').length) {
eventElement.find('span.fc-event-time').before($(GetImage(event.ImageType)));
} else {
eventElement.find('span.fc-event-title').before($(GetImage(event.ImageType)));
}
}
},
loading: function (bool) {
if (bool) $('#loading').show();
else $('#loading').hide();
}
});
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
debugger;
}
});
$('#loading').hide();
$('div[id*=fullcal]').show();
});
function GetImage(type) {
if (type == 0) {
return "<br/><img src = 'Styles/Images/attendance.png' style='width:24px;height:24px'/><br/>"
}
else if (type == 1) {
return "<br/><img src = 'Styles/Images/not_available.png' style='width:24px;height:24px'/><br/>"
}
else
return "<br/><img src = 'Styles/Images/not_available.png' style='width:24px;height:24px'/><br/>"
}
</script>
<div id="loading">`enter code here`
<img src="../images/loading_wh.gif" />
</div>
<div id="fullcal">
</div>
的
我该如何克服这个问题？如何避免覆盖数据？