Getting error after adding RadDataFilter to RedGrid

[Manoj]

Getting error following error in  NotifyPropertyChanged.
[Arg_TargetInvocationException]
Arguments:
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.0.60401.00&File=mscorlib.dll&Key=Arg_TargetInvocationException


My data source is :

ObservableCollection

 

 

<AuditAssignment> _auditAssignments;

public

 

 

ObservableCollection<AuditAssignment> AuditAssignments

 

{

 

 

get

 

{

 

 

return _auditAssignments;

 

}

 

 

set

 

{

 

 

if (_auditAssignments != value)

 

{

_auditAssignments =

 

value;

 

 

 

this.NotifyPropertyChanged("AuditAssignments");

 

}

}

}

XAML code:

 

 

 

 

 

 

<

 

 

telerik:RadDataFilter Name="radDataFilter"

 

 

 

Grid.Row="1" Grid.ColumnSpan="5"

 

 

 

 

 

 

 

 

MinHeight="193" MaxHeight="250" Width="700"

 

 

 

 

 

 

 

 

Source="{Binding Items, ElementName=radGridView}"

 

 

 

 

 

 

 

 

Margin="1" >

 

 

 

 

 

 

 

 

 

<i:Interaction.Triggers>

 

 

 

 

 

 

 

 

 

<i:EventTrigger EventName="Loaded">

 

 

 

 

 

 

 

 

 

<ei:CallMethodAction MethodName="radDataFilter_Loaded" TargetObject="{Binding}" />

 

 

 

 

 

 

 

 

 

</i:EventTrigger>

 

 

 

 

 

 

 

 

 

</i:Interaction.Triggers>

 

 

 

 

 

 

 

 

 

</telerik:RadDataFilter>

 

 

 

 

 

 

 

 

 

<!--Red Grid-->

 

 

 

 

 

 

 

 

 

<telerik:RadGridView x:Name="radGridView" Grid.Row="2" Grid.ColumnSpan="5"

 

 

 

 

 

 

 

 

AutoGenerateColumns="False" ItemsSource="{Binding Path=AuditAssignments, Mode=OneWay}">

 

 

 

 

 

 

 

 

 

<telerik:RadGridView.Columns>

 

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn DataMemberBinding="{Binding CustomerID}"

 

 

 

 

 

 

 

 

Header="Policy Number" UniqueName="Policy Number" IsGroupable="False" />

 

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn DataMemberBinding="{Binding AssignmentStartDate}"

 

 

 

 

 

 

 

 

Header="Assignment StartDate" UniqueName="AssignmentStartDate" IsGroupable="False" />

 

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn DataMemberBinding="{Binding AssignmentEndDate}"

 

 

 

 

 

 

 

 

Header="Assignment EndDate" UniqueName="AssignmentEndDate" IsGroupable="False" />

 

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn DataMemberBinding="{Binding ClassCodesCount}"

 

 

 

 

 

 

 

 

Header="Class Codes Count" UniqueName="ClassCodesCount" IsGroupable="False" />

 

 

 

 

 

 

 

 

 

<telerik:GridViewDataColumn DataMemberBinding="{Binding MaxExMod}"

 

 

 

 

 

 

 

 

Header="Max ExMod" UniqueName="MaxExMod" IsGroupable="False" />

 

 

 

 

 

 

 

 

 

</telerik:RadGridView.Columns>

 

 

 

 

 

 

 

 

 

</telerik:RadGridView>

 

 

 

 

>

For datafilter events written code in view model

 

public

 

 

void radDataFilter_Loaded(object sender, System.Windows.RoutedEventArgs e)

 

{

 

 

AuditTracking auditTracking = null;

 

 

 

if(AuditTracking.SelectedView is AuditTracking)

 

auditTracking =

 

AuditTracking.SelectedView as AuditTracking;

 

 

 

RadDataFilter dataFilter = auditTracking.radDataFilter;

 

 

 

 

int count = dataFilter.FilterDescriptors.Count;

 

 

 

int zero = 0;

 

 

 

if (count == zero)

 

{

 

 

// String filter.

 

 

 

 

 

 

 

 

FilterDescriptor nameFilter = new FilterDescriptor("CustomerID", FilterOperator.Contains, "1", true);

 

dataFilter.FilterDescriptors.Add(nameFilter);

 

 

// DateTime filter.

 

 

 

 

 

 

 

 

FilterDescriptor dateFilter = new FilterDescriptor("AssignmentStartDate", FilterOperator.IsGreaterThan, new DateTime(2007, 5, 1));

 

dataFilter.FilterDescriptors.Add(dateFilter);
}


Also please suggest way of getting filter control object in view model. I have done it by creating public property in View. That is not good way I know.

[Manoj]

Never mind. I have resolved it.