Questions on UI for WPF Forum

1 answer

302 views

Which Localized Assembly should I include?

I have read the Telerik Article on Localization with UI for WPF but I am using the Telerik NuGet server and the assemblies it provides to not appear to match what is in that article.

My application...

uses Telerik binaries *with* Xaml
uses the Telerik NuGet server to obtain its DLLs
has both English and French translations.

I see that the Telerik NuGet Server appears to provide two separate assemblies related to each language. For example, I see the following two assemblies with the ".fr" suffix for French

Telerik.Windows.Controls.for.Wpf.fr
Telerik.Windows.Controls.for.Wpf.Xaml.fr

What is the difference between these two? Should I include them BOTH with my application or just one of them?

Localization

answered on 03 Jun 2021

1 answer

132 views

Styling And Theme

How to save and load local themes

Styling

answered on 03 Jun 2021

2 answers

245 views

Styling datapoints in a ScatterLineSeries at runtime

I am trying to display the data points in a ScatterLineSeries when the user clicks a button using the following code:

private void ShowDataPointsButton_Click(object sender, RoutedEventArgs e)
{
    foreach (var series in CartesianChart.Series)
    {
        if (series is ScatterLineSeries)
        {
            series.DefaultVisualStyle = Application.Current.Resources["DataPointStyle"] as Style;
        }
    }
}

(where `CartesianChart` is a `RadCartesianChart` control)

The style definition is as follows:

<Style x:Key="DataPointStyle" TargetType="{x:Type Path}">
    <Setter Property="Height" Value="5" />
    <Setter Property="Width" Value="5" />
</Style>

(I am using a palette to style the chart; hence the missing definition for `Fill`)

But for some reason, I have to follow these steps in order to see the data points styled:

Press the `ShowDataPointsButton` button
Zoom into the chart
Press the `ShowDataPointsButton` button
Press the `ShowDataPointsButton` button again

I have tried the following options to fix this issue:

Remove the series from the chart -> Apply the style -> Add the series back into the chart
Apply the style -> Force a redraw manipulating the zoom level on the chart
Using the dispatcher associated with the series to force a redraw
Using Application.Current.Dispatcher to apply the style with Render priority
Binding a property to `DefaultVisualStyleProperty` and setting its value when user clicks the button

But in all these instances (except option 5 where the trial with binding did not work at all), I have to follow the steps mentioned up above to see the data points in the chart.

Could you please guide me on what is the right way to apply `DefaultVisualStyle` for a ScatterLineSeries in runtime from C# code-behind?

Chart

answered on 02 Jun 2021

0 answers

278 views

Apply MaskedInputExtensions to RadMaskedNumericInput in code, rather in xaml.

I'm trying to create a custom column for my RadGridView, where upon editing the cell, an appropriate control is shown - A combobox for a boolean or an enumeration, a RadMaskedTextInput for text, and a RadMaskedNumericInput for numeric values.

I'm using the RadMaskedNumericInput as I need to set maximum and minimum values, and I've seen the samples of how to set minimum & maximum values for the RadMaskedNumericInput when in xaml, by using something like:

 <telerik:RadMaskedNumericInput maskedInput:MaskedInputExtensions.Minimum="0" />

However, as I'm creating the control dynamically in the Custom Column class, I can't find a way of doing the same in code? i.e. as part of creating the control using "RadMaskedNumericInput numericTb = new RadMaskedNumericInput();" I also have the same issue in trying to set the Min & Max length extensions for the RadMaskedTextInput control.

Thanks

GridView

MaskedInput (Numeric, DateTime, Text, Currency)

asked on 02 Jun 2021

0 answers

592 views

RadGridView NullReferenceException

Hello to all,

I have a new problem in the latest version of Telerik UI for WPF with the RadGridView control.

I get sporadic a NullReferenceException when I work with the control. Unfortunately it is not reproducible.

Hopefully someone can help me. Thank you in advance.

Here is the call stack of the exception:

Description: The process was terminated due to an unhandled exception.

Exception Info: System.NullReferenceException

at Telerik.Windows.Controls.GridView.CommonColumnHeaderInfo.<get_MaxWidth>b__a(Telerik.Windows.Controls.GridViewColumn)

at System.Linq.Enumerable+WhereSelectEnumerableIterator`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Double, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()

at System.Linq.Enumerable.Sum(System.Collections.Generic.IEnumerable`1<Double>)

at Telerik.Windows.Controls.GridView.CommonColumnHeaderInfo.get_MaxWidth()

at Telerik.Windows.Controls.GridView.GridViewCellsPanel.RealizeAndMeasureCells(Int32, Int32, System.Func`2<Int32,Int32>)

at Telerik.Windows.Controls.GridView.CommonColumnHeadersPanel.UpdateVirtualizedCells()

at Telerik.Windows.Controls.GridView.GridViewCellsPanel.MeasureOverride(System.Windows.Size)