Hi,

Have just created a test website with the club starter kit.

All looks good except when I try to view the events using Events_Calendar.aspx I get the error 'String was not recognized as a valid DateTime.'

Any ideas what could be causing this?

Thanks

Mark

I also get this error, and it's frustrating me.

The error is occurring in EventCalendar.dll, which is a dll which ships with the solution in the bin folder. Yet there is no source code for this and I can't find it anywhere. Nor do I have access to a decompiler to decompile the code.

Please MS can you include the EventCalendar project and source so we can diagnose and fix this problem.

I tried decompiling this with the trial version of Spices.Net, but it cut out half of the methods (as it's the trial version).

Error is occurring in the CreateDataBoundChildren method of EventCalendar, presumably on the line:

dv.RowFilter = string.Format("{0}>= #{1}# AND {0} < #{2}#", DayField, dateTime1.ToString("MM/dd/yyyy"), dateTime2.ToString("MM/dd/yyyy"));

Full stack trace:

[FormatException: String was not recognized as a valid DateTime.]
System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) +2136542
System.DateTime.Parse(String s, IFormatProvider provider) +26
System.Data.ConstNode..ctor(DataTable table, ValueType type, Object constant, Boolean fParseQuotes) +544
System.Data.ExpressionParser.Parse() +1168
System.Data.DataExpression..ctor(DataTable table, String expression, Type type) +123
System.Data.DataView.set_RowFilter(String value) +172
ControlSample.EventCalendar.CreateDataBoundChildren(DataView dv, Table table, DateTime todaysDate, DateTime visibleDate, Calendar threadCalendar) +426
ControlSample.EventCalendar.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +220
System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +58
System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +114
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +25
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +119
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +68
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +61
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +67
System.Web.UI.Control.EnsureChildControls() +103
System.Web.UI.Control.PreRenderRecursiveInternal() +50
System.Web.UI.Control.PreRenderRecursiveInternal() +171
System.Web.UI.Control.PreRenderRecursiveInternal() +171
System.Web.UI.Control.PreRenderRecursiveInternal() +171
System.Web.UI.Control.PreRenderRecursiveInternal() +171
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6326

String is not recognized as Datetime because String is a reference type and Datetime is a value type and the .NET Calendar class is in INT and a few Double.  I have seen someone recommend Stringbuilder for value types but I have not used it.  Try the link below for the Calendar class.  Hope this helps.

http://authors.aspalliance.com/aspxtreme/sys/globalization/calendarclass.aspx

i have not solved it, but i guess its a date format problem,

i use a german OS which formats a dat like 30.12.2005

US expect 12 / 30 / 2005

 

i have found a workaorund, not perfect but page is displayed

explitly switch culture of this page to en-US

<%@ Page Language="VB" MasterPageFile="~/Default.master" Title="Untitled Page" Trace="false" Culture="en-US" %>

The Asp.net team have posted complete code you can use.  Try the link below.  Hope this helps.

http://forums.asp.net/938287/ShowPost.aspx

Error indeed comes from Events_Calendar.dll.

To solve the problem, I deleted this dll but included its source (CalendarDay.cs, DivCtrl.cs, EventCalendat.cs, ItemTemplates.cs) into the club project placed into App_Code directory. Debugger immedeatly indicated the source of the error. In EventCalandar.cs, line 256 I removed formatting "MM/dd/yy" from argument of d.ToString("MM/dd/yy").

That's all.

If anyone wants the recompiled eventscalender to work with uk dates mail me (nospam_james.clark@btinternet.com) remove the nospam_ 

I might take a day to respond but will send.

jim-jambo

Hello, I think I’ve found de solution for Localize EventCalendar.dll in Spanish (European) date format.

 

Just change MM/dd/yyyy for dd/MM/ yyyy in the source code of EventCalendar.dll available in this forums… Anyway I am going to make the file public.

 

Best Regards

 

there has to be another way to switch from one language to the other for the WHOLE project, even for ALL projects on the webserver... had 2 projects running without any problems for about 2 years , but now, i think it has something to do with the .NET 1.1 update i have done, they have switched language and the result is 2 not workin webapps...

any ideas!?

Hi, preishuber,

the Culture="en-US" works on me. I am using at new zealand , and my test server at US, so i just add the line in my page and work fine on the server.

cheers

 

In general I have found over the years that working with date and time has presented a varity of challenges. When converting from strings with asp.net I have found this simple example to provide reliable results...

Dim sBirthDate As String = BirthDate.Text & ""
If IsDate(sBirthDate) Then
    Dim dBirthDate As Date = Date.Parse(sBirthDate)
Else
    Dim dBirthDate As Date = Date.Parse("1/1/1970") 'default
End If

 

Does anyone have this version of the dll or know where I can get the code for VS 2005?

hi i too faced the same problem and i solved the problem.I just changed  System Globalization .

For more details

 

 http://nthillaiarasu.blogspot.com/2007/11/string-was-not-recognized-as-valid.html