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1 answer
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How to insert a new row (or a number of rows) at specific index in Virtual Grid that uses Data Virtualization with ADO (not EF)?
Vladimir Stoyanov
Telerik team
 answered on 12 Nov 2018
1 answer
91 views

couldn't change the theme by "Configure porject" menu.

although I use theme based on implicit styles, it still cannot go to the second page  to select which theme will be applied.

The "Theme button" also didn't show when you select the WPF window

I use visual studio 2017 - version 15.8.9 and windows 10.

Telerik control is 2018.3.1016

-Jacky

Dilyan Traykov
Telerik team
 answered on 12 Nov 2018
2 answers
120 views

I have VerticalLinearScale with properties:

Min= 0

Max = 100

MajorTickStep = 20

MiddleTicks = 4

by click on button I changed the values of the properties to:

Min= 0
Max = 30000
MajorTickStep = 5000
MiddleTicks = 10

the problem is that it takes too much time till the element render again with the new values

I couldn't attach the sample

Xaml is:

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <telerik:VerticalLinearScale Min="0" Max="100" x:Name="bar"
                                         IsInteractive="False"
                                         RelativeHeight="0.8"
                                         RangeLocation="Outside"
                                         MajorTickOffset="0.02*"
                                         MiddleTickOffset="0.02*"
                                         MinorTickOffset="0.02*" 
                                         RelativeX="0.5" RelativeY="0.08"
                                         Foreground="Gray" Fill="Red"
                                         MajorTickStroke="Red" MiddleTickStroke="Red"
                                         MiddleTicks="4" MinorTicks="1" MajorTickStep="20">      
            <telerik:VerticalLinearScale.Indicators>
                <telerik:BarIndicator x:Name="VerticalIndicator" Value="{Binding Model.Parameters[0].ValueToDisplay}" BorderBrush="Transparent" Background="{Binding Model.FillColor}"
                                  RangeColorMode="Default" telerik:ScaleObject.Location="OverOutside" StartWidth="{Binding Model.BarWidth}" EndWidth="{Binding Model.BarWidth}"
                                  UseRangeColor="True" Margin="3,0,0,0" EmptyFill="{Binding Model.GaugeColor}" />
            </telerik:VerticalLinearScale.Indicators>        
        </telerik:VerticalLinearScale>
            <Button Content="click" Click="Button_Click" Grid.Row="1"/>
    </Grid>

click event is:

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            bar.Min = 0;
            bar.Max = 30000;
            bar.MajorTickStep = 5000;
            bar.MiddleTicks = 10;
        }

Thanks,

Shoshana

 

 

שושי
Top achievements
Rank 1
 answered on 11 Nov 2018
2 answers
321 views

Every time I try to add a GridView i get "Microsoft Visual Studio XAML Designer has stopped working."  Then Close or Debug.  Then after clicking Close I get this error in the window:

An Unhandled Exception has occurred

System.ArgumentException
Property 'System.Object ItemsSource' is not defined for type 'Telerik.Windows.Controls.RadGridView'
   at System.Linq.Expressions.Expression.Property(Expression expression, PropertyInfo property)
   at System.Linq.Expressions.Expression.Property(Expression expression, MethodInfo propertyAccessor)
   at Telerik.Windows.Controls.GridView.Design.RadGridViewMetadata.<.ctor>b__0(AttributeCallbackBuilder b)
   at MS.Internal.Metadata.MutableAttributeTable.ExpandAttributes(Type type, AttributeList attributes)
   at MS.Internal.Metadata.MutableAttributeTable.GetExpandedAttributes(Type type, Object callbackParam, GetAttributesCallback callback)
   at MS.Internal.Metadata.MutableAttributeTable.GetCustomAttributes(Type type)
   at Microsoft.Windows.Design.Metadata.AttributeTable.GetCustomAttributes(Type type)
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.MetadataStore.<GetAttributes>d__29.MoveNext()
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.<MergeAttributesIterator>d__9.MoveNext()
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.GetAttributes(MemberInfo memberInfo, Type attributeType, IPlatformMetadata platformMetadata, Boolean checkBaseTypes, Func`3 canContinueCheckingBaseTypes)
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.GetAttributes(Type type, IPlatformMetadata platformMetadata, Boolean checkBaseTypes)
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.RuntimeProjectType.GetAllAttributes(Boolean inherit)
   at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.IsTypeSupported(IProjectMetadata typeResolver, ITypeId typeId)
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.GenericControlTool.get_IsVisible()
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.GenericControlTool.GetExtensibleEquivalent()
   at Microsoft.VisualStudio.DesignTools.Designer.ViewModel.Extensibility.ExtensibilityManager.ToolManager_ActiveToolChanged(Object sender, ToolEventArgs e)
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolEventHandler.Invoke(Object sender, ToolEventArgs e)
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.OnActiveToolChanged(ToolEventArgs e)
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.set_ActiveTool(Tool value)
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.UpdateHostTool()
   at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.HostToolService_ActiveToolChanged(Object sender, EventArgs e)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.LocalEvent`2.<>c__DisplayClass11_0.<Invoke>b__0()
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.Call.Invoke(Boolean waitingInExternalCall)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.InvokeCall(Call call)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessQueue(CallQueue queue)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessInboundQueue(Int32 identity)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessMessage(Int32 msg, IntPtr wParam, IntPtr lParam, Boolean elevatedQuery, Boolean& handled)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.OnWindowMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.MessageOnlyHwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.RunApplication()
   at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.<>c__DisplayClass3_0.<Main>b__0()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

Vladimir Stoyanov
Telerik team
 answered on 09 Nov 2018
4 answers
646 views
I have a RadListBox with DragDropBehavior, the RadListBox itemtemplates contain a textbox. I want the text in the textbox to be selectable using the mouse, but when I drag to select text, the item is dragged instead. Is it possible to disable drag within a control in an itemtemplate in a draggable RadListBox? I tried setting telerik:DragDropManager.AllowCapturedDrag="False" and telerik:DragDropManager.AllowDrag="False" on the textbox but that doesn't help.

Here's my little test project:

using System.Collections.ObjectModel;
 
namespace ListBoxTest
{
    public partial class MainWindow
    {
        public MainWindow()
        {
            InitializeComponent();
 
            DataContext = this;
 
            MyCollection = new ObservableCollection<string> { "test text 1", "test text 2", "test text 3", "test text 4", "test text 5", "test text 6" };
        }
 
        public ObservableCollection<string> MyCollection { get; private set; }
    }
}

<Window
    x:Class="ListBoxTest.MainWindow"
    Title="MainWindow" Height="500" Width="525">
    <telerik:RadListBox
        ItemsSource="{Binding MyCollection}">
        <telerik:RadListBox.ItemTemplate>
            <DataTemplate>
                <Grid Height="50" Width="100" Background="LightBlue" telerik:DragDropManager.AllowCapturedDrag="True">
                    <TextBox
                        Text="{Binding .}"
                        VerticalAlignment="Center"
                        HorizontalAlignment="Center"
                        telerik:DragDropManager.AllowCapturedDrag="False"
                        telerik:DragDropManager.AllowDrag="False"/>
                </Grid>
            </DataTemplate>
        </telerik:RadListBox.ItemTemplate>
        <telerik:RadListBox.DragDropBehavior>
            <telerik:ListBoxDragDropBehavior />
        </telerik:RadListBox.DragDropBehavior>
    </telerik:RadListBox>
</Window>
Vladimir Stoyanov
Telerik team
 answered on 09 Nov 2018
3 answers
213 views

Hello,

I'm trying to customize the style of the timeline by minimizing controls from the timeline.It will be embedded in a different control that will then perform the manipulation of zooming and scrolling.

1) I have successfully hidden the group header by modifying the TimelineItemContainer ItemsPanelTemplate TimelineItemGroupsPanel padding to be = zero

2) I have not been able to hide the small thin border item that still exists at the top of the timeline

3) I have not been able to hide the horizontal scroll bar at the bottom of the timeline.

 

I am using the implicit style method and have successfully completed #1.

 

zmirli
Top achievements
Rank 1
 answered on 09 Nov 2018
12 answers
283 views
Is there any chance that we can get the zoomlevel changed to a double so that I can more precisely size my map? Or is there another way to achieve this? E.G. the difference between zoom level 7 and 8 on one of the supplied US state shapefiles is quite a lot. I'd like to be able to zoom in at, say 7.3 or 7.4.
Vladimir Stoyanov
Telerik team
 answered on 08 Nov 2018
3 answers
2.3K+ views

I am trying to set theme (Fluent) AlternativeBrush into SolidColorBrush resource. I am facing error #FFF2F2F2' is not a valid value for property 'Color'. 

Everything is working fine, but problem when I want to define SolidColorBrush resource from theme. This resource will be used in other templates.

For reference following is sample code what I am doing now

 

<SolidColorBrush Color="{telerik:FluentResource ResourceKey=AlternativeBrush}" x:Key="AlternativeBrush"/>
Vladimir Stoyanov
Telerik team
 answered on 08 Nov 2018
1 answer
89 views

Hi Telerik,

I'm currently using the Outlook Template for visual studio and I'm wondering how can I change the accent color on the template?

I was to be able to use customized color hex or RGB to set colors for like accent, text etc.

 

Vladimir Stoyanov
Telerik team
 answered on 08 Nov 2018
0 answers
105 views

Hi. I am using RadComboBox control in my project. Previously, the control was in non-editable mode (IsEditable="False") and drop functions worked fine.

<telerik:RadComboBox
IsEditable="True"
IsFilteringEnabled="True"
AllowDrop="True"
ItemsSource="{Binding Type.Items}"
DisplayMemberPath="DocumentId"
Text="{Binding Value, Mode=TwoWay}">
<i:Interaction.Behaviors>
<local:DropTargetBehavior DropCommand="{Binding DropCommand}" />
</i:Interaction.Behaviors>
</telerik:RadComboBox

 

When I set IsEditable to True then drop functionality has stopped working. In editable mode there is an "Input Area" overlay control and i cannot drop anything to RadComboBox. Can you suggest any working example for dropping something to RadComboBox in editable mode (IsEditable="True")?

Vladimir
Top achievements
Rank 1
 asked on 08 Nov 2018
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