Is it possible to overwrite the RadGridView Search logic and implement a custom search logic ?
My Problem is that the search works only good on text. In our grid we have columns with Date and / or columns with numbers. The search performs really poor on these types. 

I attached two gif files to showcase my problem.

I have the following implicit style:

    <Style TargetType="telerik:GridViewCell" BasedOn="{StaticResource GridViewCellStyle}">
        <Setter Property="FontFamily" Value="Segoe UI" />
        <Setter Property="FontSize" Value="18" />
        <Setter Property="Foreground" Value="Green" />
    </Style>

However, only the foreground color changes - all font settings are ignored. 

Searched this forum, I don't think it is Theme related, but I am using the Crystal theme

Hi, I am having an issue with a standalone RadMultiColumnComboBox.  It needs to be populated differently each time I select a different entity (User) from a RadGridView.  As I understand it the only way to do this is with events. 

The problem is that I run into an exception when I try to clear the selected items from the MCCB (basically, I need to reset it), and add the new selections.  I get various ObservableCollection changed event exceptions.  

What is the correct way to do this to avoid these type of exceptions? 

Thanks,

Ian

 

Here is the code I use so far: 

 

 

Here is an example of the exceptions I am getting: 

System.InvalidOperationException: 'Cannot change ObservableCollection during a CollectionChanged event.'

   at System.Collections.ObjectModel.ObservableCollection`1.CheckReentrancy()
   at System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
   at System.Collections.ObjectModel.Collection`1.Remove(T item)
   at Telerik.Windows.Controls.RadMultiColumnComboBox.OnSelectedItemPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
   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, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at Telerik.Windows.Controls.MultiColumnComboBox.SelectionBridge.ItemsSelectedInOwner(IEnumerable`1 addedItems)
   at Telerik.Windows.Controls.MultiColumnComboBox.SelectionBridge.OwnerSelectedItemsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)

I've ready through the migration guide, overview, and DragDropPayloadManager guides, but there is still not enough information to migrate my existing code.Even the migration guide isn't sure which event maps to which event (see attached photo).

Can someone familiar with making the migration help me port over this code since basically everything has changed?

        public void OnDragInfo(object sender, DragDropEventArgs e)
        {
            if (e.Options.Status == DragStatus.DropImpossible && DragCue != null)
            {
                DragCue.Background = DropImpossibleBackground;
                DropIndicator.Opacity = 0;
            }
            else if (DragCue != null)
            {
                DragCue.Background = DropPossibleBackground;

                DropIndicator.HorizontalOffset = e.Options.CurrentDragPoint.X - e.Options.RelativeDragPoint.X;
                DropIndicator.VerticalOffset = e.Options.CurrentDragPoint.Y - e.Options.RelativeDragPoint.Y + DropIndicator.Height;
                Debug.WriteLine(e.Options.CurrentDragPoint);
                DropIndicator.Opacity = 100;
            }
        }

        public void OnDragQuery(object sender, DragDropQueryEventArgs e)
        {
            GridViewRow row = sender as GridViewRow;

            e.QueryResult = RadDragAndDropManager.GetAllowDrag(row) &&
                (e.Options.Destination == null || e.Options.Destination is GridViewRow);

            if ((e.QueryResult ?? false) && e.Options.Status == DragStatus.DragQuery)
            {
                e.Options.Payload = row?.DataContext;
            }
        }

        public void OnDropInfo(object sender, DragDropEventArgs e)
        {
            object item = e.Options.Payload;
            GridViewRow source = e.Options.Source as GridViewRow;
            GridViewRow destination = e.Options.Destination as GridViewRow;

            if (source != null && destination != null && AssociatedObject.Items.Contains(item) && e.Options.Status == DragStatus.DragComplete)
            {
                int index = AssociatedObject.ItemContainerGenerator.IndexFromContainer(destination);

                ((IList) AssociatedObject.ItemsSource).Remove(item);

                ((IList) AssociatedObject.ItemsSource).Insert(index, item);

                if (!ItemsSourceSupportNotifications)
                {
                    AssociatedObject.Rebind();
                }

                DropIndicator.IsOpen = false;
            }

            if (e.Options.Status == DragStatus.DragCancel)
            {
                DropIndicator.IsOpen = false;
            }
        }

        public void OnDropQuery(object sender, DragDropQueryEventArgs e)
        {
            GridViewRow targetRow = e.Options.Destination as GridViewRow;

            if (targetRow != null)
            {
                e.QueryResult = targetRow.GridViewDataControl == AssociatedObject;
            }
            else
            {
                e.QueryResult = false;
            }
        }

Hi All,

I am very new to Telerik, doing all my work through threads. The program I am working on it is already do have tables and so on, now I cannot find anyone with problem of sending email and sms.

I need to have a clue on how I can retrieve the particular fields on my clients table and send SMS notification. Email suppose to have an attachment field to attach the document slip.

All I would like to see is ViewModel and View binding data - just these 2, would really appreciate any short program as an example.

 

Regards,

Mncedi

 

My WPF application permits users to select from a collection of <UserControl/> at runtime.
Each <UserControl/> is loaded as content to a RadPane. Each RadPane, RadPaneGroup
and RadSplitContainer has a unique serialization tag:



I have created an event handler for ElementSaving.  At the point we are saving a RadPane, I
want to serialize the contents (which is a user-selected <UserControl/> as above):



My first question: Am I on the right track with this approach, or has Telerik implemented
some functionality that would permit a cleaner approach?   I note a reference to a method
called GetPaneContent() at this link in the Silverlight forum.  Is that a reference to some
user-created method... or is it a method provided by Telerik?

A company that I consult for has an application that uses the expression editor.  A configuration box that uses the expression editor has a calculation that used to work but no longer does.  It appears that the Round function has changed to not allow parenthesis within it's own.  Can someone explain if there has been a recent change in R1 2019 that might explain this?

I'm binding a DataView to the ItemsSource of a RadGridView and some columns are of the DateTime type. On the DateTime-columns I set FilterMemberPath to col.DataMemberBinding.Path.Path + ".Date" as mentioned here: http://www.telerik.com/forums/filtering-on-date-only to only filter on the date part.

This functionality is now broken. I't works in 2016.1.217.45, but not in 2016.3.1024.45 or later versions (I've tried up to the latest release version 2017.2.216.40)

If I replace my DataView with an IEnumerable<SomeObject> the filtering works as expected.

Hello,
I've been spiraling down a sad hole without any answers, so any insight is appreciated!

So I have a collection.  I'm not able to share my code for security reasons, but in the image provided, the data members which are NOT collections themselves are displayed in one radgridview above, while data members with corresponding collections are displayed in additional radgridviews below, as depicted in the image.  I am able to add an error icon onto the main radgridview with a custom message indicating that there is an "Error Below" using the "RowValidating" property of the radgridview.  The issue is that I am unable to remove the error icon from the parent radgridview if that row is not selected, since the the validation occurs on the row.  Once I select the row, the error is removed because the validation occurs.  

 

So I guess my question is, how can I force a validation on all rows?  This needs to happen after I call the Undo function.

 

Hope this was clear enough.

Regards,

Scooba

Hello,

is there a way to apply a style to the integrated RadGridView of the MultiColumnComboBox ?

Regards,
Hans