Questions on UI for WPF Forum

3 answers

165 views

[Solved] Disable editing MergeField content.

Hi,

it is possible to prevent user from chaning merge fields content using RadRichTextBox. I know this changes are saving or affects document, but it looks not good when user can change {MERGEFIELD NAME} to something like {MERREAF52FF AAME} or anything else. Is there any flag for this? Or should I implement my own function? How to check if current caret position is inside merge field?

Thanks

RichTextBox

answered on 23 Oct 2018

1 answer

414 views

AutoScrollToSelectedItem does not work correctly with different HeirarchicalTemplate

I use RadTreeView with Custom style and HeirarchicalTemplate. I work with IsSelected property via twoway binding from viewmodel. While I switch manually or programmatically by elements of the same type AutoScrollToSelectedItem works correctly. As soon as I switch to an item of a different viewmodel type I get a scroll to the middle of the tree, the selected item is not visible on the screen. When opening the tree for the first time without the selected elements, I also have a scroll in the middle, although I expect to see the beginning of the list.

<telerik:RadTreeView Name="treeViewOperationItems" ItemsSource="{Binding OperationCollection, Mode=TwoWay}" Background="White"
IsLineEnabled="False" Grid.Row="1" Grid.RowSpan="2" Margin="5" ItemContainerStyle="{StaticResource TreeItemStyle}"
ScrollViewer.HorizontalScrollBarVisibility="Disabled" SelectedItem="{Binding SelectedItem, Mode=TwoWay}"
AutoScrollToSelectedItem="True">

<telerik:RadTreeView.Resources>
<HierarchicalDataTemplate DataType="{x:Type viewModels:OperationDefVM}" ItemsSource="{Binding Items}">
<StackPanel Orientation="Vertical" Margin="10" FocusManager.FocusedElement="{Binding ElementName=textBox}" >
<TextBox x:Name="textBox" Text="{Binding Path=Data.Def.UniqueId}"
helpers:FocusExtension.IsFocused="{Binding IsSelected, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
MinWidth="100" Style="{StaticResource TreeTextBoxStyle}"/>
<extendEditor:ExtendedEditor Text="{Binding Path=Data.Def.UniqueId, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
x:Name="edit" Height="40" Width="400" FontSize="14"/>
</StackPanel>
</HierarchicalDataTemplate>

</telerik:RadTreeView.Resources>
</telerik:RadTreeView>

TreeView

answered on 23 Oct 2018

15 answers

751 views

[Solved] Setting ShapeStyle to RadDiagram

Hi,

I'm populating RadDiagram by defining a GraphSource. I have several different types of nodes with unique shapes. How do I link the node with its graphical presentation. The example in documentation uses ConnectionStyle and ShapeStyle attributes of telerik:RadDiagram, However in my case I have several ShapeStyles.

<telerik:RadDiagram x:Name="diagram"

ConnectionStyle="{StaticResource pascalEdgeStyle}"

ShapeStyle="{StaticResource pascalNodeStyle}" /> 

Diagram

answered on 22 Oct 2018

3 answers

118 views

RadDatePicker Control

Hi All,

I want to customize the ErrorToolTip property of RadDatePicker Control.

I am able to do with event ParseDateTimeValue of RadDatePicker Control based on some condition.

           if (Convert.ToDateTime(input) < dateLimit)
            {
                (sender as RadDatePicker).ErrorTooltipContent = "Another Error";
                args.IsParsingSuccessful = false;
                args.Result = args.PreviousValue;
            }

its working fine when I am typing some date manually but when I am selecting the date from RadDatePicker Control ,the same code executes but ErrorToolTip is not displaying

Please help me.

General Discussions

answered on 22 Oct 2018

1 answer

174 views

Suggest adjust the cursor for the high DPI screen!

In high DPI screen,many software's cursor is too small,include the telerik UI,but besides the microsoft.
I got the following code to resolve the problem,you can try:

static ConstructorInfo _cursorScaleStreamCtor= typeof(Cursor).GetConstructor(new Type[2]
   {
    typeof(Stream),
    typeof(bool)
   });
   //uri refer to the *.cur file(normal 32x32),compile for resource
   internal static Cursor LoadCursor(Uri uri)
        {
            StreamResourceInfo resourceStream = Application.GetResourceStream(uri);
            if ( _cursorScaleStreamCtor != null)
            {
                return (Cursor)_cursorScaleStreamCtor.Invoke(new object[2]
                {
                    resourceStream.Stream,
                    true
                });
            }
            return new Cursor(resourceStream.Stream);
        }

General Discussions

answered on 22 Oct 2018

5 answers

610 views

[Solved] Glyph-Icons during design time

I like the new Glyph-feature and use it in my recent project. Unfortunately the Glyph-Icons are not visible during design time in VS 2013, I can only see an empty rectangle. What do I have to do so these icons are also visible during design?

Regards
Heiko

General Discussions

answered on 22 Oct 2018

0 answers

120 views

PercentOfColumnTotal has NAN

Hi

The zero data caused NAN case.

Please check the data of the attached file.

Is there any way to remove NAN?

My code.

dataprovider.AggregateDescriptions.Add(new PropertyAggregateDescription()

{

PropertyName = "AAA",

AggregateFunction = AggregateFunctions.Sum,

TotalFormat = new PercentOfColumnTotal()

});

PivotGrid

asked on 22 Oct 2018

1 answer

92 views

dynamic create Series ,difficult to create TrackBallInfoTemplate

Chart.Series.Add(new LineSeries
{
CategoryBinding = binding,
ValueBinding = ...,
StrokeThickness = 1,
Stroke = ...,
ItemsSource = vm.Datas,
TrackBallInfoTemplate = // difficult to create
});

TrackBallInfoTemplate is difficult to create, how can i only set a stringformat to use trackballinfo

ChartView

answered on 20 Oct 2018

4 answers

539 views

Overriding Ctrl-Z and Ctrl-Y for NumericUpDown

An earlier post explains how to set IsUndoEnabled=false to prevent RadNumericUpDown from handling undo. I did that, and it disabled the local undo feature. However, when focus is on the control and I press Ctrl-Z or Ctrl-Y, my global commands are not executed, although they work when focus is not on the RadNumericUpDown.

I tried two approaches to resolve this: adding a KeyDown handler, and adding local input bindings. The KeyDown handler receives the LControl key, but not the Z or Y keys while LControl is pressed. The local input bindings don't seem to do anything (see below).

So, after setting IsUndoEnabled=false, how do I get Ctrl-Z and Ctrl-Y to execute my global commands when focus is on the RadNumericUpDown control?

<telerik:RadNumericUpDown   VerticalAlignment="Center"
         NumberDecimalDigits="2"
         Margin="0"
         Width="80"
         Loaded="RadNumericUpDown_Loaded"
         Value="{Binding Width}">
   <telerik:RadNumericUpDown.InputBindings>
    <KeyBinding Gesture="Ctrl+Z" Command="{Binding UndoCommand}" />
    <KeyBinding Gesture="Ctrl+Y" Command="{Binding RedoCommand}" />
   </telerik:RadNumericUpDown.InputBindings>
  </telerik:RadNumericUpDown>

NumericUpDown

answered on 19 Oct 2018

3 answers

322 views

RibbonView and quick access toolbar menu customization

Hello!

How can I dynamically customize RibbonView quick access toolbar? I want to show and hide buttons using quick access toolbar menu like in Microsoft Office applications. It seems that this is not possible and menu is not customizable either.

Thank you.

RibbonView and RibbonWindow

answered on 19 Oct 2018