Questions on UI for WPF Forum

1 answer

102 views

Drag and Drop RadTreeView.SelectedItems to Grid

Hello,

I want to drag multiple items in RadTreeView and drop to Grid (NOT GridView).

Is there any previous threads about it or code samples?

DragAndDrop

answered on 07 Apr 2021

5 answers

361 views

Is a custom color picker possible?

Hello.

First of all, please check the image.

My question is this.

1. The textbox in the splitbutton has no function. Can the ColorPicker be displayed in the same way as the arrow function?

Arrow button down when clicking text box.

2. Can I change the location of Themes colors and Standard Colors?

MainPalette and StandardPalette properties exist, but cannot be reversed.

Is there a solution?

Thanks.

ColorPicker

answered on 07 Apr 2021

7 answers

529 views

Editor Window ShowDialog Error.

Hello

I created the Editor after watching the demo.

When an error occurs, clicking the button first opens the Editor window, but an error occurs.

-------This Error-------------

System.Windows.Markup.XamlParseException: ''Cannot set unknown member 'System.Windows.Controls.TextBox.IsReadOnly'.'

Line number '1301' and line position '21'.'

------------------------

There is no content of Editor Xaml.

There is no error when creating an instance. Error appears when using ShowDialog!

var window = new EditorView(); // Pass

window.showdialog(); // << Error

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

<Window.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="pack://application:,,,/KickOff;component/Resources/NoXaml/NoXamlTemplate.xaml" />

</ResourceDictionary.MergedDictionaries>

</ResourceDictionary>

</Window.Resources>

<Grid>

<telerik:RadColorEditor x:Name="radColorEditor" />

<StackPanel Orientation="Horizontal" VerticalAlignment="Bottom" HorizontalAlignment="Right"

Height="32" Margin="0 0 11 11">

<Button Content="OK" Width="60" Margin="0 0 10 0"

Click="OnClickOkCommand" => Using DialogResult = true, Close()

/>

<Button Content="Cancel" Width="60"

Click="OnClickCancelCommand" => Using DialogResult = false, Close()

/>

</StackPanel>

</Grid>

I used telerik noxaml version 2021_1_308, office 2019 themes.

refer : telerik controls, controls.input

themes.implicit wpf40 office2019 : system.windows.xaml, telerik.controls.xaml, telerik.controls.input.xaml

Thanks.

ColorEditor

answered on 07 Apr 2021

2 answers

144 views

Office theme, double border od NumericUpDown

In my WPF application, I'm using Office theme (2016 or 2019). It causes that some of controls I'm using has an odd style. For example, Xceed DoubleUpDown/IntegerUpDown etc. has an additional internal border. I'd like to avoid overriding the entire control template.

How to solve this problem?

Thanks!

General Discussions

answered on 07 Apr 2021

2 answers

134 views

ArgumentException, binding to base type collection to GridView's ItemsSource

public class BaseType

{

public int Id { get; set; }

}

public class ChildType1 : BaseType

{

public string Name1 { get; set; }

}

public class ChildType2 : BaseType

{

public string Name2 { get; set; }

}

// View model

public class WindowViewModel : ViewModelBase

{

public ObservableCollection<BaseType> Items { get; }

}

I have a problem with binding to ItemSource from ViewModel with ObservableCollection. It's a generic collection of base type e.g. BaseType. Moreover I have a few child classes inherited from BaseType. They contain loads of additional properties of simple types such like double, int, string. For each child type I have another DataTemplate with different column definitions. When I'm opening the window, System.ArgumentException is throwing from Telerik with message "Property with name XXX cannot be fround on type BaseType". Due to this problem, GridView's performance is unacceptable (in release mode either).

How to solve that problem?
Thanks for help!

GridView

answered on 07 Apr 2021

3 answers

159 views

What was the feedback?

Hello.

I have previously posted a post.Please refer to the link.

SpreadSheet Cell changed event infinite loop.

Spreadsheet: InvalidOperationException is thrown when attaching to CellPropertyChanged event and trying to modify the cell

I tested it after seeing it was updated and built today.

But I don't know what has changed.

Still, errors and infinite loops appear. (System.StackOverflowException: ''System.StackOverflowException' )

Thanks.

Spreadsheet

answered on 07 Apr 2021

2 answers

155 views

Using Callout with buttons baked in to RadImageEditorUI

Is there any way to assign a callout to (say) the Open Image Button of the RadImageEditorUI?

I can't seem to find any way to get a reference to a button within the RadImageEditorUI control so I can assign it to a callout.

Thanks

Callout

answered on 06 Apr 2021

3 answers

304 views

Redirect the shortcut „Ctrl+S“

Hello every body,

I am currently trying to custumize the RadSpreadsheet. My purpose is to redirect the shortcut „Ctrl+S“ to my own custum command.
I tried this

<telerik:RadSpreadsheet x:Name="radSpreadsheet" >
            <telerik:RadSpreadsheet.InputBindings>
                <KeyBinding Gesture="Ctrl+S" Command="{Binding myCommand}"/>
           </telerik:RadSpreadsheet.InputBindings>
          ……
</telerik:RadSpreadsheet>

But I am still getting the default command. Is there any way to achieve what I want?
Just to make it clear. I did the same thing with RadRichTextBox

<telerik:RadRichTextBox x:Name="radRichTextBox" >
                    <telerik:RadRichTextBox.InputBindings>
                        <KeyBinding Gesture="Ctrl+S" Command="{Binding SaveFileCommand}" />
                    </telerik:RadRichTextBox.InputBindings>
                </telerik:RadRichTextBox>
</telerik:RadRichTextBox x:Name="radRichTextBox" >

it works well.

Please help.

Best regards

Spreadsheet

answered on 06 Apr 2021

1 answer

174 views

The Alert window is sometimes not visible.

I am calling RadWindow's Alert in the following code.

Even though it transfers control to the main window of the program, it disappears if you do not click the OK button after showing it for a while.

And I can't click the confirmation button anymore.

call.cs

AlertWindow.Alert(ret.Error.UserMessage);

alertWindow.cs

public class AlertWindow

    {

public static void Alert(string msg, string header=null, ILog log = null, ContentControl contentControl=null)

{

if (header == null)

header = "title";

if (contentControl == null)

contentControl = Application.Current.Windows.Cast<Window>().FirstOrDefault(win => win.Topmost);

Telerik.Windows.Controls.RadWindow.Alert(new Telerik.Windows.Controls.DialogParameters

{

Content = msg,

Header = header,

OkButtonContent = MulBangUl.Resources.Localization.CommonResources.CmdConfirm,

Owner = contentControl

});

if (log != null)

log.Info(msg);

}

Window

answered on 05 Apr 2021

3 answers

355 views

Clicking the mouse on the image in RadImageEditor

I need coordinates where exactly I clicked the mouse on the loaded image in WPF RadImageEditor (not the coordinator of the editor but the image). Any ideas how to achieve this goal?

Andrzej

ImageEditor

answered on 05 Apr 2021