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RadDataFilter ArgumentException

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DataFilter
This is a migrated thread and some comments may be shown as answers.
Bart Reekmans
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Bart Reekmans asked on 15 Jun 2012, 01:06 PM
Hi,

I'm trying to use a radfilter that filters the items in my radgridview, based on textinput in a textbox

this is my code : 

private void textBoxFilterValue_TextChanged(object sender, TextChangedEventArgs e)
{
    string text = (sender as RadWatermarkTextBox).CurrentText;
 
    if (!string.IsNullOrEmpty(text))
    {
        if (mGridView != null && mFilter != null)
        {
            FilterDescriptor birthDateFilter = new FilterDescriptor();
            birthDateFilter.Member = "HtmlValue";
            birthDateFilter.Operator = FilterOperator.Contains;
            birthDateFilter.Value = text;
            birthDateFilter.IsCaseSensitive = false;
 
            mFilter.FilterDescriptors.Add(birthDateFilter);
        }
    }
    else            
    {
        mFilter.FilterDescriptors.Clear();
    }
}


but I get the following exception : 

at Telerik.Windows.Data.Expressions.EnumerableFilterOperatorExpressionBuilder.GenerateContainsMethodCall(Expression source, Expression value, Boolean shouldNegate)
at Telerik.Windows.Data.Expressions.EnumerableFilterOperatorExpressionBuilder.GenerateContains(Expression left, Expression right)
at Telerik.Windows.Data.Expressions.FilterOperatorExpressionBuilderBase.CreateExpression(Expression left, Expression right)
at Telerik.Windows.Data.Expressions.OperatorValueFilterDescriptorExpressionBuilderBase.CreateBodyExpression()
at Telerik.Windows.Data.FilterDescriptor.CreateFilterExpression(ParameterExpression parameterExpression)
at Telerik.Windows.Data.FilterDescriptorBase.CreateFilterExpression(Expression instance)
at Telerik.Windows.Data.Expressions.FilterDescriptorCollectionExpressionBuilder.CreateBodyExpression()
at Telerik.Windows.Data.CompositeFilterDescriptor.CreateFilterExpression(ParameterExpression parameterExpression)
at Telerik.Windows.Data.FilterDescriptorBase.CreateFilterExpression(Expression instance)
at Telerik.Windows.Data.CompositeFilterDescriptorCollection.CreateFilterExpression(Expression instance)
at Telerik.Windows.Data.ICompositeFilterDescriptorExtensions.GetFilterFunction(ICompositeFilterDescriptor filterDescriptors, Type itemType)
at Telerik.Windows.Data.QueryableCollectionView.InitializeInternalList(IQueryable view)
at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
at Telerik.Windows.Data.QueryableCollectionView.EnsureInternalList()
at Telerik.Windows.Data.QueryableCollectionView.get_InternalList()
at Telerik.Windows.Data.QueryableCollectionView.EnsureRootGroup()
at Telerik.Windows.Data.QueryableCollectionView.get_Groups()
at Telerik.Windows.Controls.GridView.BaseItemsControl.GetEffectiveItems(BaseItemsControl itemsControl)
at Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.EnsureIndexTree()
at Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.get_IndexTree()
at Telerik.Windows.Controls.GridView.GridViewDataControl.InitializeShouldKeepScrollState()
at Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Controls.GridView.BaseItemsControl.OnItemCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.DataItemCollection.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.QueryableCollectionView.RefreshOverride()
at Telerik.Windows.Data.QueryableCollectionView.RefreshInternal()
at Telerik.Windows.Data.QueryableCollectionView.RefreshOrDefer()
at Telerik.Windows.Data.QueryableCollectionView.InvalidatePagingAndRefresh()
at Telerik.Windows.Data.QueryableCollectionView.OnFilterDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer)
at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer)
at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer)
at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer)
at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Add(T item)
at Artemis.Window1.textBoxFilterValue_TextChanged(Object sender, TextChangedEventArgs e) in R:\WPF\Sln_Huisartsen\Artemis\Window1.xaml.cs:line 187

depending on user selection, the control gets loaded and unloaded several times (datatemplate selector).

The code-line giving the exception is mFilter.FilterDescriptors.Add(birthDateFilter);
Surrounding this statement with a try-catch block solves the problem.
The filter continues to work, although an exception is thrown multiple times (every time the textchanged event is triggered) 

2 Answers, 1 is accepted

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Rossen Hristov
Telerik team
answered on 15 Jun 2012, 01:13 PM
Hello,

The filter does not like your descriptor for some reason, biut we cannot guess why from the information provided.

Can you send us a runnable sample project that reproduces your exception so we can debug it and see what is really going on.

Thanks in advance.

Regards,
Ross
the Telerik team

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Bart Reekmans
Top achievements
Rank 1
answered on 15 Jun 2012, 01:39 PM
Hi,

As far as I can understand, the Member property is the propertyname of the objects in the grid?
My objects base class is ViewModelBase, with a property called HtmlValue

When I change the value for the Member-property, the filter still seems to work?
Adding an extra line of code seems to have solved the exception : birthDateFilter.MemberType = typeof(string);
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DataFilter
Asked by
Bart Reekmans
Top achievements
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Answers by
Rossen Hristov
Telerik team
Bart Reekmans
Top achievements
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