Hi Team,

We were previously using the 2017.2.614.45 version of the Telerik controls and were facing memory leak issues with RadGridView. We have hence upgraded to 2018.3.1016.45 version of the controls but still are facing the same memory leak issues. 

We use RadPane which is placed in a RadPaneGroup; the pane in turn contains the RadGridView. We have handled the closed event of the RadPaneGroup wherein we do our cleanup operations(unsubscribing RadGridView events, setting DataContext as null). As stated in one of the forum posts, we also do the cleanup operations advised which is given at the end. 

Please also find the memory profile report of our application when we closed the RadPane. 

Kindly advise.

Regards,

Swapnil Ramteke

Hi every body ....

I use RadRichTextBox in the following manner: first page is used (by the user) as a cover letter so that it is not included within the total count of pages. Footer of every page except first page should display page number x from y, where x is the current page number (after the first page), and y is the total number of pages minus one (the first page).

I could achieve the first value of the formatted footer using CodeBasedField, but unfortunately I couldn't modify the value returned by NumPagesField.

My question is how to modify value returned by NumPagesField so that I can display total number of pages minus one. Below there is an attachment of an image to show my requirement.

The following is my code snippet used in creating the custom footer:

I was trying to use RadMultiColumnComboBox in RadGridView with programatic filtering. The filtered item of the ComboBox(in Col3) is depend on the value of Col1 and Col2. The problem is to get the "Y" object. I donot know how.

<telerik:RadGridView ItemsSource="{Binding X}>
      <telerik:RadGridView.Columns>
        <telerik:GridViewDataColumn Header="Col1" DataMemberBinding="{Binding XA}"/>
        <telerik:GridViewDataColumn Header="Col2" DataMemberBinding="{Binding XB}"/>
        <telerik:GridViewDataColumn Header="Col3">
          <telerik:GridViewDataColumn.CellTemplate>
            <DataTemplate>
              <telerik:RadMultiColumnComboBox>
                <telerik:RadMultiColumnComboBox.ItemsSourceProvider>
                  <telerik:GridViewItemsSourceProvider ItemsSource="{Binding Y}" AutoGenerateColumns="False"> (*** used FindAncestor aproach***)
                    <telerik:GridViewItemsSourceProvider.Columns>
                      <telerik:GridViewDataColumn Header="SubCol1" DataMemberBinding="{Binding YA}"/>
                      <telerik:GridViewDataColumn Header="SubCol2" DataMemberBinding="{Binding YB}"/>
                    </telerik:GridViewItemsSourceProvider.Columns>
                  </telerik:GridViewItemsSourceProvider>
                </telerik:RadMultiColumnComboBox.ItemsSourceProvider>
              </telerik:RadMultiColumnComboBox>
            </DataTemplate>
          </telerik:GridViewDataColumn.CellTemplate>
        </telerik:GridViewDataColumn>
      </telerik:RadGridView.Columns>
    </telerik:RadGridView>

I tryed following but every time I find null.

-- .ChildrenOfType<>()

-- .Columns["<col_name>"]

-- FindResource() (***as DataTemplete declared as Resource***)

Hi,

I tried a hierarchical grid like this:

This works so far - but the child grid is extremely wide.
I can remove this behavior when I have no column with Width="*" in the child.
With the Width="*" this columns fills more than the width of the parent grid.

All other columns are fix - but this one can contain longer text - so removing the "*" is not an option.
The desired outcome is a child Grid that fills the parent - with one column "AutoExpanding".

As a workaroundI tried to bind the Width of the child grid to another element on the UserControl - Width="{Binding ActualWidth, ElementName=xRect}".

But this results in a binding error.

Manfred

Hi,I'm sorting a TreeListView clicking the header. See the structure below. All the top rows are sorted fine (Ascending and Descending), A5 row have 1 child level and is sorted good too. But A1 that have more than 1 level of children doesn't work. If I keep A1 with 1 level of children (just F1 and A2) the sort works. So TreeListView support sort with more that 1 horizontal level of children ?

A1 - 0
          F1- 1
          A2 - 2

                    F2 - 3 

                     A3 - 4

                               A4 - 5
                               F3- 6
A5 - 7
           F4-8
           F5-9
F6-10
F7-11

This is my xaml:

<telerik:RadTreeListView Grid.Row="2" x:Name="DeckDataGrid"
                               EnableLostFocusSelectedState="False"
                               CanUserSortColumns="True"
                               SelectionMode="Single"
                               cal:Message.Attach="[Event Sorting] = [Action SortingHandler($source, $eventArgs)]"
                               ItemsSource="{Binding Source={StaticResource EngineeringDeckMarksView}}"
                               TreeLinesVisibility="Hidden"
                               SelectedItem="{Binding SelectedDeckMark, Mode=TwoWay}"
                               HierarchyColumnIndex="1">
        <telerik:RadTreeListView.SortDescriptors >
          <telerik:SortDescriptor Member="MarkNumber" />
        </telerik:RadTreeListView.SortDescriptors>
        <telerik:RadTreeListView.ChildTableDefinitions>
          <telerik:TreeListViewTableDefinition ItemsSource="{Binding ChildrenDeckMarks}" />
        </telerik:RadTreeListView.ChildTableDefinitions>
        <telerik:RadTreeListView.Columns>
          <telerik:GridViewDataColumn MinWidth="32" IsSortable="True" SortMemberPath="IsSelected" EditTriggers="None">
            <telerik:GridViewDataColumn.CellTemplate>
              <DataTemplate DataType="deck:IBaseDeckMarkViewModel">
                <CheckBox Margin="10 0 0 0"
                          CommandParameter="{Binding}"
                          IsChecked="{Binding IsSelected, Mode=TwoWay}" />
              </DataTemplate>
            </telerik:GridViewDataColumn.CellTemplate>
          </telerik:GridViewDataColumn>
          <telerik:GridViewDataColumn HeaderCellStyle="{StaticResource StyleMarkHeader}" CellStyle="{StaticResource StyleMark}" Header="Mark" SortingState="Ascending" DataMemberBinding="{Binding DeckIndex}"  MinWidth="100" Width="120" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Bundle" SortingState="Descending" DataMemberBinding="{Binding Bundle, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}'}" MinWidth="100" Width="100" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Qty" SortingState="Ascending" DataMemberBinding="{Binding Quantity, TargetNullValue='--', FallbackValue='--' }" MinWidth="71" Width="71" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Avail&#x0a;Qty" SortingState="Ascending" DataMemberBinding="{Binding AvailableQuantity, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="80" Width="100" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Length" SortingState="Ascending" DataMemberBinding="{Binding Length, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}', Converter={StaticResource LengthDisplayConverter}, ConverterParameter=FractionalFeet8th}" MinWidth="90" Width="90" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Designation" SortingState="Descending" DataMemberBinding="{Binding Designation, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="140" Width="150" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Gage" SortingState="Descending" DataMemberBinding="{Binding Gage, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="70" Width="70" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Galv" SortingState="Ascending" SortMemberPath="GalvanizationThickness" DataMemberBinding="{Binding Galvanization, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}'}" MinWidth="70" Width="70" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Top&#x0a;Finish" SortingState="Ascending" DataMemberBinding="{Binding TopFinish, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="90" Width="90" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Bot&#x0a;Finish" SortingState="Ascending" DataMemberBinding="{Binding BottomFinish, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="90" Width="90" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Emboss" SortingState="Ascending" DataMemberBinding="{Binding Emboss, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}'}" MinWidth="110" Width="110" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Acoustic" SortingState="Ascending" DataMemberBinding="{Binding Acoustic, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="110" Width="110" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Perf" SortingState="Ascending" DataMemberBinding="{Binding Perforation, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="80" Width="120" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Yield" SortingState="Ascending" DataMemberBinding="{Binding Yield, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="80" Width="120" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Wt Ea" SortingState="Ascending" DataMemberBinding="{Binding WeightEach, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}', Converter={StaticResource RoundAwayFromZeroConverter}, ConverterParameter=2}" MinWidth="80" Width="120" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Bundle&#x0a;Desc" SortingState="Ascending" DataMemberBinding="{Binding BundleDescription, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" Width="110" MinWidth="110" IsReadOnly="True" />
          <telerik:GridViewDataColumn Header="Width" SortingState="Ascending" DataMemberBinding="{Binding Width, TargetNullValue='--', FallbackValue='--', StringFormat='{}{0}' }" MinWidth="105" Width="*" IsReadOnly="True" />
        </telerik:RadTreeListView.Columns>
      </telerik:RadTreeListView>

Hi!

I need to change the default timezone of my schedule view. Is there any way to do this? In this case, for example, I want to show every date and time in my scheduleview to be displayed in UTC or any other timezone that I can specify.

I want to use TreeListView for creating a financial statement. The columns are reporting periods determined at run time. The number of reporting periods is determined at run time.

It looks something like this.

Element                                     Jan                   Feb               Mar             April

AccountsReceivable                  10                     20                  40              90

Inventory                                    33                     66                  34            454

Column 1 is a heiractical list of elements

the other columns are a collection for each element that consists of:

Period (2018-Jan)

Value $100

How would I bind the reporting period column with the element row. I have the data. It is a matter of presenting it.

Hi, I'm relatively new in WPF and using the Telerik Controls. I'll go to my problem, I'm getting this error

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Trial.ViewModel.DeviceViewModel', AncestorLevel='1''. BindingExpression:Path=SelectedField; DataItem=null; target element is 'RadGridView' (Name='BitField'); target property is 'SelectedItem' (type 'Object')

I appreciate your help in giving the solution to my problem.

So... this is my current setup:

ListView.xaml

<UserControl x:Class="Trial.Views.RegisterListView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:Trial.Views"
             xmlns:viewmodel="clr-namespace:Trial.ViewModel"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:diag="clr-namespace:System.Diagnostics;assembly=WindowsBase"
             mc:Ignorable="d"
             d:DesignHeight="300" d:DesignWidth="600">
    <Grid>
        <Grid.Resources>
            <DataTemplate x:Key="RowDetailsTemplate">
                <telerik:RadGridView Name="BitField" ItemsSource="{Binding Fields}" SelectedItem="{Binding Path=SelectedField, RelativeSource={RelativeSource AncestorType={x:Type viewmodel:DeviceViewModel}}}" AutoGenerateColumns="False" RowIndicatorVisibility="Collapsed">
                    <telerik:RadGridView.Columns>
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}"/>
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Value}"/>
                        <telerik:GridViewDataColumn Header="Command">
                            <telerik:GridViewDataColumn.CellEditTemplate>
                                <DataTemplate>
                                    <StackPanel Orientation="Horizontal">
                                        <telerik:RadButton CornerRadius='15' Width="80" Height='30' Margin="10 10 0 0" ToolTip='Read Register' Content='Read' KeyboardNavigation.TabIndex="2" Command="{Binding Path=ReadRegisterCommand, RelativeSource={RelativeSource AncestorType={x:Type viewmodel:DeviceViewModel}}}"/>
                                    </StackPanel>
                                </DataTemplate>
                            </telerik:GridViewDataColumn.CellEditTemplate>
                        </telerik:GridViewDataColumn>
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding Documentation}"/>
                    </telerik:RadGridView.Columns>
                </telerik:RadGridView>
            </DataTemplate>
        </Grid.Resources>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="300"/>
        </Grid.ColumnDefinitions>
        <telerik:RadGridView ItemsSource="{Binding Registers}" SelectedItem="{Binding SelectedRegister}" RowDetailsTemplate="{StaticResource RowDetailsTemplate}" AutoExpandGroups="False" RowIndicatorVisibility="Collapsed">
            <telerik:RadGridView.Columns>
                <telerik:GridViewToggleRowDetailsColumn/>
                <telerik:GridViewDataColumn Header="Register Name" DataMemberBinding="{Binding Name}"/>
                <telerik:GridViewDataColumn Header="Register Address" DataMemberBinding="{Binding Address}"/>
                <telerik:GridViewDataColumn Header="Register Value" DataMemberBinding="{Binding Value}"/>
                <telerik:GridViewDataColumn Header="Description" DataMemberBinding="{Binding Desc}"/>
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</UserControl>

=====================================================

DeviceViewModel.cs

public ObservableCollection<RegisterDetails> Registers
        {
            get
            {
                if (Registers != null)
                {
                    return this.Registers;
                }
                else
                {
                    return null;
                }
            }
        }

public RegisterDetails SelectedRegister
        {
            get
            {
                return this.selectedRegister;
            }

            set
            {
                this.selectedRegister = value;
                this.RaisePropertyChanged("SelectedRegister");
            }
        }

public FieldDetails SelectedField
        {
            get
            {
                return this.selectedField;
            }

            set
            {
                this.selectedField = value;
                this.RaisePropertyChanged("SelectedField");
            }
        }

=====================================================

RegisterDetails.cs

public class RegisterDetails
{
    public string Name { get; set; }
    public uint Address { get; set; }
    public uint Value { get; set; }
    public string Desc { get; set; }
    public FieldDetails[] Fields { get; set; }
}

=====================================================

FieldDetails.cs

public class FieldDetails
{
    public string Name { get; set; }
    public uint Value { get; set; }
    public string Documentation { get; set; }
}

My view model looks like this:

And the code behind looks like this:

If I don't set the GoeBounds in the provider then I can't zoom and pan as expected. If I do set the GeoBounds then when I click the minimap button the app crashes with the following exception:

What am I doing wrong?

Thanks

Pete

I have been trying without success to edit a copy of the Material theme for RadGridView in order to make the scrollbars wider.  I have been able to make the outer part wider, but not the inner bar. (that you drag)  Would you happen to have an example?  I would also accept changing the scrollbars globally. (I have tried that too but with no success)

I did try to follow the steps in https://docs.telerik.com/devtools/wpf/styling-and-appearance/how-to/styling-apperance-styling-scrollbars

but have had no luck with that either.  Advanced WPF styling is still bewildering to me or I might have been able to figure this out on my own.