I am using MVVM and trying to bind slecteditems twoway mode. If I bind selecteditems from Viewmodel to View by raising Property changed, It throws exception as below
<sfListView:SfListView x:Name="listItems" SelectedItems="{Binding SelectedItems, Mode=TwoWay}"
ItemsSource="{Binding Items}" SelectedItem="{Binding SelectedItem, Mode=OneWayToSource}"
SwipeOffset="250" BackgroundColor="White" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"
SelectionMode="Multiple"
ItemSpacing="1" IsStickyHeader="False" IsStickyFooter="False"
AllowSwiping="True" IsEnabled="True">
private ObservableCollection<Database.Model.Item> selectedItems;
public ObservableCollection<Database.Model.Item> SelectedItems
{
get
{
return selectedItems;
}
set
{
if (value != selectedItems && ListSelectionMode == SelectionMode.Multiple)
{
selectedItems = value;
RaisePropertyChanged("SelectedItems");
}
}
}
10-02 00:55:08.832 I/MonoDroid(24942): System.NullReferenceException: Object reference not set to an instance of an object.
10-02 00:55:08.832 I/MonoDroid(24942): at Syncfusion.ListView.XForms.SfListView.OnSelectionModeChanged (Xamarin.Forms.BindableObject bindable, System.Object oldValue, System.Object newValue) [0x00015] in <eb04770f88c84a24bd134736ce89a543>:0
10-02 00:55:08.832 I/MonoDroid(24942): at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty property, Xamarin.Forms.BindableObject+BindablePropertyContext context, System.Object value, System.Boolean currentlyApplying, Xamarin.Forms.BindableObject+SetValueFlags attributes, System.Boolean silent) [0x00108] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:592
10-02 00:55:08.832 I/MonoDroid(24942): at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty property, System.Object value, Xamarin.Forms.BindableObject+SetValueFlags attributes, Xamarin.Forms.BindableObject+SetValuePrivateFlags privateAttributes) [0x0015b] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:386
10-02 00:55:08.832 I/MonoDroid(24942): at Xamarin.Forms.BindingExpression.ApplyCore (System.Object sourceObject, Xamarin.Forms.BindableObject target, Xamarin.Forms.BindableProperty property, System.Boolean fromTarget) [0x001f9] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindingExpression.cs:173
10-02 00:55:08.832 I/MonoDroid(24942): at Xamarin.Forms.BindingExpression.Apply (System.Boolean fromTarget) [0x0003e] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindingExpression.cs:55
10-02 00:55:08.832 I/MonoDroid(24942): at Xamarin.Forms.BindingExpression+BindingExpressionPart.<PropertyChanged>b__47_0 () [0x00000] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindingExpression.cs:539
10-02 00:55:08.832 I/MonoDroid(24942): at Java.Lang.Thread+RunnableImplementor.Run () [0x00008] in <d278c06ad5684d6882c743a94a93ebc2>:0
10-02 00:55:08.832 I/MonoDroid(24942): at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00008] in <d278c06ad5684d6882c743a94a93ebc2>:0
10-02 00:55:08.832 I/MonoDroid(24942): at (wrapper dynamic-method) System.Object:69d2077b-b265-45f9-a8c2-7c7704266070 (intptr,intptr)
