Questions on UI for WPF Forum

1 answer

42 views

Update other column when editing another column

GridView

answered on 13 Dec 2024

1 answer

58 views

RadCartesianChart3D camerarotaion event

I am using a RadCartesianChart3D in a WPF application, where the label along the y-axis on the horiziontal plane denotes a "Flow direction" displayed using an Arrow symbol.

When/if the user rotates the chart around the vertical z-axis, so that the chart is seen from the backside, the values of the Y-axsis are reversed, which in my case translated to the "flow direction" should be swapped, as in: I need to change the arrow symbol in the y-axis label from "Pointing Right" to "Pointing Left" (or the opposite).

I notice, that the RadCartesianChart3D is actually already "flipping" the text label as the chart is rotated.

Is there any way I can intercept this behaviour, eg. as a ChartRotated or LabelPositionUpdated event, as the user rotates the chart, so that I can change the Label text as needed?

Two images attached to illustrate what I try to accomplish

/Thanx

ChartView3D

answered on 12 Dec 2024

1 answer

66 views

wpf c# RadPropertyGrid RadComboBox --> Set Seloected index or Text Programmatically

Hi,

Does anyone know how I can set the text manually in a RadPropertyGrid and a ComboBox? Or also the selectedIndex? I want to manually set ONLY this one element.

               <telerik:RadPropertyGrid AutoGeneratePropertyDefinitions="False"
                                     x:Name="PropertyBenutzer"  
                                     LabelColumnWidth="150" 
                                     MinHeight="50" 
                                     FontFamily="Tahoma" 
                                     FontWeight="Bold" 
                                     FontSize="12" 
                                     DescriptionPanelVisibility="Visible"
                                     CanUserResizeDescriptionPanel="True"
                                     telerik:StyleManager.Theme="Crystal"
                                     NestedPropertiesVisibility="Visible" 
                                     RenderMode="Flat"
                                     IsGrouped="True"
                                     Item="{Binding ElementName=MyPropertyGrid1}" 
                                     Canvas.Left="568" 
                                     >

...

                        <telerik:PropertyDefinition DisplayName="Anrede" OrderIndex="1" GroupName="Benutzer">
                            <telerik:PropertyDefinition.EditorTemplate>
                                <DataTemplate>
                                    <Border>
                                        <telerik:RadComboBox x:Name="ComboBoxAnrede" 
                                                         FontFamily="Tahoma" 
                                                         Width="156" 
                                                         HorizontalAlignment="Left" 
                                                         HorizontalContentAlignment="Center" 
                                                         SelectedItem="{Binding Anrede, Mode=TwoWay}"
                                                         ItemsSource="{Binding AnredeListe}"
                                                         DisplayMemberPath="Anrede"
                                                         IsEditable="False"
                                                         IsEnabled="true"
                                                         IsReadOnly="False"
                                                         MinWidth="30"
                                                         SelectedIndex="0" 
                                                         CanAutocompleteSelectItems="True" 
                                                         CanKeyboardNavigationSelectItems="True"
                                                         >
                                        </telerik:RadComboBox>
                                    </Border>
                                </DataTemplate>
                            </telerik:PropertyDefinition.EditorTemplate>
                        </telerik:PropertyDefinition>

PropertyGrid

answered on 09 Dec 2024

0 answers

62 views

Drag and DropText outside of RichTextBox

I would like to drag text outside of a WPF RadRichTextBox into a different App.

It seems that dragging any text just outside of this control is not possible, not even within the same app.
IMHO the problem is, that text can be moved within this control, and this feature cannot be deactivated.

Thanks a lot in advance for any hints.

Edit: Just checked with standard RichTextBox (FlowControl) no problems out of the box. I can drag text internal and as soon as mousepointer went outside, everything is fine and works there. Try this with RadRichTextBox and the Prompt goes crazy inside of your control.

DragAndDrop

RichTextBox

updated question on 06 Dec 2024

1 answer

59 views

WPF RadGridView searchtextbox

Hi Everyone,

Is there any way to put searchbox outside of radgrid?

For example:

</stackpanel>

Thank you

Cris

GridView

answered on 03 Dec 2024

1 answer

109 views

Mouse Coordinates using GiveFeedbackHandler in WPF with DragDropManager

Is it possible to get the mouse coordinates while in a handler for this event? It seems like Mouse.GetPosition isn't returning valid information.

DragAndDrop

answered on 02 Dec 2024

1 answer

87 views

Why preview versions are not visible in https://nuget.telerik.com/v3/index.json

I use nuget.telerik for my CI/CD.

There is actually a bug in WPF controls (Touch Manager) which is fixed in preview version Telerik UI for WPF 2024.4.1126

But this version is not available throught nuget.telerik.

How can I use it in my CI/CD?

General Discussions

answered on 27 Nov 2024

1 answer

151 views

Change Visibility of RadBadge

Hello,

i'm using a RadButton with a RadBadge to open an dialog with new messages.

Now i'm wondering how to hide the RadBadge when there are no new messages...

In my viewmodel i have a property (bool) that indicates, if the badge should be visible or not...

Here's the XAML - its part of a datatemplate for a RadWindow:

<telerik:RadButton x:Name="manButton"  Grid.Column="7" Margin="10,6" Command="{Binding ShowManCommand}" Focusable="False">
    <telerik:RadButton.Content>
        <Image Source="{iconPacks:MaterialImage CommentTextMultipleOutline, Brush=White}" Margin="4" />
    </telerik:RadButton.Content>
    <telerik:RadBadge.Badge>
        <telerik:RadBadge BadgeType="ContentOnly"  AnchorPosition="1,1" Position="1.1,0.4" 
                          Geometry="{telerik:Geometry Type=Oval}" Background="Red" 
                          FontSize="12" Height="16" Width="28"
                          Content="{Binding ManMessageCount}" 
                          Visibility="{Binding IsManBadgeVisible, Converter={converter:BoolToVisibilityConverter}}"/>
    </telerik:RadBadge.Badge>
</telerik:RadButton>

Is there a possibility to hide/collapse the RadBadge? It seems that the visibility property isn't working...

Badge

answered on 27 Nov 2024

1 answer

141 views

ComboBox with GridView? (oh, and a rant :)

I've been working with the Telerik WPF controls for the last couple of months and appreciating them.

<rant>

However, I have a major gripe as well: most of the examples are FAR too complex. Here's a perfect example. I'm trying to get a ComboBox to work with a GridView. There is an example that does pretty much exactly what I want at https://github.com/telerik/xaml-sdk/tree/master/ComboBox/DropDownWithHeaders. However,

A simple clone from the repository won't run. That seems fundamental to me. When I look into it, the problem is themes. A simple example should not even include themes! I would suggest a proper example would allow me to clone and run, with nothing else on my machine but Visual Studio.
When I look into the actual example, it is anything but simple! The control template is 155 lines of code!?!?! How do I sort through that quickly and figure out what I need and don't need? I don't need all kinds of animation or fancy styles. For the purposes of learning the controls, I need the absolute minimum to make it work!

There is also an example of this at https://www.telerik.com/forums/radcombobox-with-radgridview, but it suffers from the same problems.

This kind of thing seriously makes me ponder going back to our old controls provider.

</rant>

Now, can someone please provide me with a simple example of a ComboBox that uses a GridView for the drop-down?

Of course perhaps I'm using the wrong control. Maybe I should be using the MultiColumnComboBox, but the end results shown in the examples make it look nothing like a traditional ComboBox. (Again, that may be owing to a lack of a good, simple example.)

Help?

ComboBox

GridView

MultiColumnComboBox

answered on 26 Nov 2024

0 answers

82 views

RadDiagram panning

I am using the RadDiagram component inside a WPF application for a sketching software. The default behavior of the RadDiagram is to enable movement of the diagram with the Ctrl + Left click and drag shortcut. I want to enable the program to also work with Middle mouse button click and drag. Currently, I am using custom RadDiagram tools, which derive from their base classes. For example, MyPanningTool:

using System;
using System.Windows.Input;
using XXX.Core.Models.EventArgs;
using Telerik.Windows.Diagrams.Core;

namespace XXX.XXX.Presentation.Tools
{
    internal class MyPanningTool : PanningTool
    {
        private const string PanningToolName = "Panning Tool";
        private SelectionMode _selectionMode;
        private ToolService _toolService;

        public MyPanningTool()
        {
            Cursor = DiagramCursors.Dragging;
        }

        private void ActivatePanningTool()
        {
            _toolService ??= Graph.ServiceLocator.GetService<IToolService>() as ToolService;
            _toolService?.ActivateTool(PanningToolName);
        }

        private void ActivatePointerTool()
        {
            _toolService ??= Graph.ServiceLocator.GetService<IToolService>() as ToolService;
            _toolService?.ActivateTool("Pointer Tool");
        }

        public override bool KeyDown(KeyArgs key)
        {
            if (!IsActive) return false;
            base.KeyDown(key);

            if (key.Key != Key.Enter && key.Key != Key.Escape && !ToolService.IsControlDown)
            {
                ActivatePanningTool();
                return false;
            }

            return false;
        }

        /// <inheritdoc />
        public override bool MouseDown(PointerArgs e)
        {
            if (IsActive)
            {
                _selectionMode = Graph.SelectionMode;
                Graph.SelectionMode = SelectionMode.None;
            }

            if (ToolService.IsControlDown || Mouse.MiddleButton == MouseButtonState.Pressed)
            {
                //ActivateTool();
                //ActivatePanningTool();
                return base.MouseDown(e);
            }
                
            return IsActive && base.MouseDown(e);
        }

        /// <inheritdoc />
        public override bool MouseMove(PointerArgs e)
        {
            if (ToolService.IsControlDown || Mouse.MiddleButton == MouseButtonState.Pressed)
            {
                return base.MouseMove(e);
            }
            return IsActive && base.MouseMove(e);
        }

        /// <inheritdoc />
        public override bool MouseUp(PointerArgs e)
        {
            if (!IsActive) return false;

            Graph.SelectionMode = _selectionMode;

            try
            {
                base.MouseUp(e);
            }
            catch
            {
                // ignored
            }



            if (ToolService.IsControlDown || Mouse.MiddleButton == MouseButtonState.Pressed) return base.MouseUp(e);

            ActivatePointerTool();
            ToolChangedEvent?.Invoke(null, new ToolChangedEventArgs("Pointer Tool"));
            return true;
        }

        public static event EventHandler<ToolChangedEventArgs> ToolChangedEvent;
    }
}

I've tried to capture the Middle mouse click event on the RadDiagram and transfer them to the Panning tool Mouse click and and Move events, but this doesn't seem to do the trick.

Diagram

updated question on 26 Nov 2024