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.

I would like to change the order to Drag & Drop between two or more groups in the GridView.

However, the contents of the sample works normally, but the code I wrote does not work.

I do not have any other options, but I do not know why. What did he do wrong? Please help me.

We are using version 2017.2.614.40.

Work Code...

<telerik:RadGridView x:Name="ui_lsvGridView" GroupRenderMode="Flat" RowIndicatorVisibility="Collapsed"
                             CanUserFreezeColumns="False"  
                             AutoGenerateColumns="False"
                             IsFilteringAllowed="{Binding UseGridFilter}"
                             CanUserResizeColumns="true"
                             GridLinesVisibility="Horizontal"                                                             
                             telerik:StyleManager.Theme="Windows8"                                                              
                             SelectionUnit="FullRow"
                             SelectionMode="Single"
                             IsReadOnly="True"
                             ShouldReorderColumnsOnUngrouping="True"
                             ItemsSource="{Binding DataList}"
                             SelectedItem="{Binding SelectedItem, Mode=TwoWay}"     
                             MouseRightButtonDown="ui_lsvGridView_MouseRightButtonDown"
                             MouseDoubleClick="ui_lsvGridView_MouseDoubleClick">
            <telerik:RadGridView.GroupHeaderTemplate>
                <DataTemplate>
                    <TextBlock Foreground="{Binding Group.Key, Converter={StaticResource EmptyValuetoColorStringConverter}}" Text="{Binding Group.Key, Converter={StaticResource EmptyValuetoEmptyConverter}}" FontWeight="Bold" />
                </DataTemplate>
            </telerik:RadGridView.GroupHeaderTemplate>
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn Name="rno"  Header="{x:Static Locale:Res.MNU_No}" Width="40" DataMemberBinding="{Binding [rno]}" CellStyle="{StaticResource tGridRowStyle_Number}" IsFilterable="False" IsGroupable="False" >
                    <telerik:GridViewDataColumn.AggregateFunctions>
                        <telerik:CountFunction ResultFormatString="{}{0:N0}"  />
                    </telerik:GridViewDataColumn.AggregateFunctions>
                </telerik:GridViewDataColumn>

..........

I checked this in a new project and see the same results. Seeing this with multiple versions, including the latest.

MouseWheelMode="ZoomToPoint" does not work. It zooms but does not center on the point.

The ZoomLevel binding is not updating correctly and/or partially ignoring MaxZoomLevel. For example, if I set a MaxZoomLevel of 19, and use the mouse wheel to zoom, I will receive the following values:

17,18,19,20

If I keep zooming in with the mouse wheel, I will continue to receive "20", even though the zoom isn't changing. If I then zoom out with the wheel, the ZoomLevel then changes from 20 to 18.

Hi guys, 

I need to make StrokeThickness bigger for the relation of the selected tasks.  What I want is to make easier for the user to understand each task's dependencies.  How can I do it?

Best regards

Paolo

Hi,
I need to implement a grid where the user can select a list of itemes from a TreeView. Once the items are selected, the cell must show the concatenation of selected items. Attached you can find a sample screenshot of what I need.

I tried to do that creating a custom column (https://docs.telerik.com/devtools/wpf/controls/radgridview/managing-data/how-to/howto-create-custom-editor). 
This is an extract from the code of my custom column.

public override FrameworkElement CreateCellEditElement(GridViewCell cell, object dataItem)
        {
            var treeView = new RadTreeView
            {
                IsOptionElementsEnabled = true,
                ItemsSource = TreeViewItemsSource,
                ItemContainerStyle = TreeViewItemContainerStyle,
                ItemTemplate = HierarchicalItemTemplate,
            };

            var dropDownButton = new RadDropDownButton
            {
                DropDownContent = treeView,
                DropDownMaxHeight = 250,
            };

            //this.BindingTarget = ???;

            return dropDownButton as FrameworkElement;
        }

My question is how to bind the checked items of the TreeView to the BindingTarget dependency property of the GridViewBoundColumnBase in order to update the field of the data item bound to the column, once the cell edit is committed.

Thanks in advance.