DateTimePicker seems broken on new build

[xceedsoftware]

EstebanMartinez[CodePlex]
Hello.

I just wanted to report an issue that I encountered today when I updated my nuget packet to the new build.

I have an application that I've had developed for quite a while that used the DateTimePicker as part of search criteria in an MVVM light viewmodel. It worked fine until I updated the package.

I downloaded and referenced the 2.8 libraries and things worked again. So, i'm unsure if something changed that perhaps I am violating, or there may be an issue.

For reference, in my viewmodel I have a property defined as below:
private DateTime? _createdAfter = null;
public DateTime? CreatedAfter
{
get
{
if (IsInDesignMode) { return new DateTime(2012, 12, 12); }
else { return _createdAfter; }
}
set
{
if (_createdAfter != value)
{
_createdAfter = value;
RaisePropertyChanged(() =gt CreatedAfter);
}
}
}
Bound to the DateTimePicker as thus:

ltxctk:DateTimePicker Format=quotCustomquot Value=quot{Binding CreatedAfter, Mode=TwoWay}quot /gt
After updating I got the following error:

Index was out of range. Must be non-negative and less than the size of the collection.

with this stack trace error:

at System.ThrowHelper.ThrowArgumentOutOfRangeException()
at Xceed.Wpf.Toolkit.DateTimeUpDown.OnValueChanged(Nullable1 oldValue, Nullable1 newValue)
at Xceed.Wpf.Toolkit.DateTimePicker.OnValueChanged(Nullable1 oldValue, Nullable1 newValue)
at Xceed.Wpf.Toolkit.Primitives.UpDownBase`1.OnValueChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntryamp newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue,
OperationType operationType)
at System.Windows.DependencyObject.ClearValueCommon(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata)
at System.Windows.DependencyObject.ClearValue(DependencyProperty dp)

[xceedsoftware]

BoucherS[CodePlex]
In v3.2, the throw will also manage this case.

[xceedsoftware]

SplinterBaryon[CodePlex]
This error also happens when both the Value and the FormatString is databound like so:

xctk:DateTimePicker Value={Binding StartTime} Format=Custom FormatString={Binding StartFormatString} /

[xceedsoftware]

BoucherS[CodePlex]
In v3.2, the DateTimePicker will throw if the FormatString property is null when Format property is set to Custom.

[xceedsoftware]

BoucherS[CodePlex]
Hi,

Thanks for your feedback.

Make sure that when you use the DateTimePicker.Format property to Custom, you also set a value for property DateTimePicker.FormatString.

[Dimigergo]

Hello!

I use Toolkit latest 3.3 version and the problem still when the FormatString property is bound:
<xctk:DateTimePicker Value="{Binding FilterFromDate}"
FormatString="{Binding formatFilterDateTime, Source={StaticResource CultureResource}}"
Format="Custom"/>

If I use hard coded string format, it works.
<xctk:DateTimePicker Value="{Binding FilterFromDate}"
FormatString="yyyy.MM.dd HH:mm"
Format="Custom"/>

Thanks!

[movingcity]

I use the latest 3.4 version and face the same problem. FormatString have to be hard coded.

[XceedBoucherS]

Hi,
This code seems to work:
<Window.Resources> <local:CultureResource x:Key="CultureResource" formatFilterDateTime="yyyy.MM.dd HH:mm"/> </Window.Resources> <Grid> <xctk:DateTimePicker Value="{Binding FilterFromDate}" FormatString="{Binding formatFilterDateTime, Source={StaticResource CultureResource}}" Format="Custom"/> </Grid>

` public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();

  this.DataContext = this;
  this.FilterFromDate = DateTime.Now;

}

public DateTime FilterFromDate
{
  get;
  set;
}

}

public class CultureResource
{
public string formatFilterDateTime
{
get;
set;
}
}`