Questions on UI for WPF Forum

2 answers

148 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

147 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

166 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

178 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

311 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

177 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

399 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

1 answer

186 views

Grid lines overwrite plot area border

How can I show all grid lines *and* always show the plot area border? For example, if my axis ranges from 5 to 35, the grid line at 35 overwrites the plot area border and border will not be shown. If set the gridlines to Inner, then sometimes the first and last grid lines will not show, depending on the axis range (obviously). Equally unfortunate is that if one set is set to Inner and one to All, the grid lines will be drawn on top of the border leading to gray pixels at the intersection (screenshot). Ideally, this could all be solved if the border was just drawn after the grid lines. Is that possible?

ChartView

answered on 05 Apr 2021

4 answers

868 views

Issues with SelectedItem

I have a listbox defined in the xaml -

<telerik:RadListBox x:Name="CartLineItems" ItemsSource="{Binding LineItems}" SelectedItem="{Binding SelectedArticle, Mode=TwoWay}"

ItemTemplate="{StaticResource ConfectioneryDataTemplate}" VerticalAlignment="Stretch"

HorizontalAlignment="Stretch" Background="LightGray">

</telerik:RadListBox>

I frequently need to clear and repopulate the ItemsSource to refresh the Listbox. (LineItems is an observable collection). When I clear the collection, the SelectedItem is also cleared (visually). When I repopulate and set the SelectedItem object with data, there is no item in the ListBox which is selected. Below is the code -

private void RefreshLineItems()

{

// Store the selected article for later use.

LineItem selectedLineItem = null;

if (SelectedArticle != null)

selectedLineItem = SelectedArticle;

// Clear all the line items.

LineItems.Clear();

// Iterate through the cart to re-populate LineItems and reset the selected article.

if (ActiveCart != null)

{

foreach (LineItem lineItem in ActiveCart.lineItems)