The selection a RadComboBox hosted in RadDataForm gets cleared on commit changes. This happens when the RadComboBox is added in the EditTemplate and its IsEditable is set to True. Committing the edit clears the TextBox of the ComboBox, which clears the selection.

To work this around, subscribe to the EditEnding event of RadDataForm and clear the DataContext of the RadComboBox element.

  private void RadDataForm_EditEnding(object sender, Telerik.Windows.Controls.Data.DataForm.EditEndingEventArgs e)
  {
      var dataForm = (RadDataForm)sender;
      var myField = dataForm.ChildrenOfType<DataFormDataField>().FirstOrDefault(df => df.Name == "myField");
      if (myField != null)
      {
          var comboBox = (RadComboBox)myField.Content;
          comboBox.DataContext = null;
      }
  }

At this time, Telerik UI for WPF distributes libraries build for each TFM -> WPF45, NetCore and NET50.

If there was a way that UI for WPF could compile some of those libraries .NET Standard 2.0 compatible, it would allow for the developers making the transition from .NET Framework to .NET Core/.NET5 a but easier because they will be able to share the reusable Telerik code in a class library consumed by both WPF45 and WFP50 projects

Are there any plans to release a Visual Studio 2022 theme for WPF?  The Winforms UI has this theme, and I would like to have it for WPF as well.

Are there other themes on the roadmap that you could share?

Thanks!

--Darren

i have UriVectorTileMapProvider and i have files pbf.

When i create my style file json i cant get render corectly.

i have two example:

1)one in my style json i have three layers:buildings,military,hospital (ex1.png)

When I use such a file, one polygon is lying with buildings on top where the other polygon covers the buildings

 "layers": [
    {
      "id": "landcover_wood",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "landuse",
      "filter": [
        "==",
        "class",
        "military"
      ],
      "layout": {
        "visibility": "visible"
      },
      "paint": {
        "fill-color": "green"
      }
    },
    {
      "id": "landcover_hos",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "landuse",
      "filter": [
        "==",
        "class",
        "hospital"
      ],
      "layout": {
        "visibility": "visible"
      },
      "paint": {
        "fill-color": "yellow"
      }
    },
   ,
    {
      "id": "building",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "building",
      "minzoom": 12,
      "maxzoom": 24,
      "paint": {
        "fill-color": {
          "stops": [
            [
              13,
              "yellow"
            ],
            [
              16,
              "red"
            ]
          ]
        }
      }
    }
  ]

2) if i have this style json, telering dont recognize color for every layers like hospital or military i have black (ex2.png)

"layers": [

whats wrong with my json file style?

Bind a grid to a DataView

Start editing and change the values of a few cells.

Press Escape twice to cancel the edit of the entire row.

Expected: the values return to the old values

Actual: the values remain the last entered ones

I have created this timeline control out of a combination of different controls.  But I get asked for this same kind of setup from different companies for different reason. I have created this control using your TreeListView to show the headers in the hierarcy while for Layer Num items, there is a list to the right which holds a list of MediaItem objects.  It works but not very efficient and is missing much key functionality. And I thought because you already have controls that are similar, it wouldn't be a huge reach for you to make on like this.

So there could be two modes for this.  The editing mode where the user is dragging/dropping media items on each layer item, rearranging, setting the length of media, etc.  They could then hit PLAY like a Movie Maker and see a preview on a different control of what is being played.  Once this is saved, it could be used in another way.

So in the readonly mode, all the items would be feed in as a hierarchtial collection.  It would decribe how many levels there are and the names and order of the items.  And then it would also have all the MediaItems related to each Layer Num.  And then it would constantly be fed what the current time is related to this batch of items playing.  The user doesn't hit PLAY in this mode but rather just sees a read only version of what is being played and watch the line goes across.

I think this would be a very welcomed control to your lineup.   Because anyone who wants to make a media editing program, audio editing program, and even showing a schedule for items that happens every 30 seconds in different locations while getting a constant status of the current time would find this  invaluable.

Can be reproduced in the WPF demo (Windows8 theme): the error description tooltip appears on the left of the control and with the red arrow on the left (see attachment). The tooltip should appear on the same side of the red adorned element (the red triangle, top right corner) and the tooltip arrow should point the control.

When biding IsVisible of column in RadMultiColumnComboBox/GridViewItemsSourceProvider using MVVM pattern, the binding won't work initially, but is works as expected if removing the ElementName and adding it back in the below example xaml using debugger.

PS1. The binding for CheckBox(in the below sample) works with issue but not for RadMultiColumnComboBox

PS2. Also attached full sample code.

<Window x:Class="TestProject.MainWindow"
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
                xmlns:local="clr-namespace:TestProject"
                Title="MainWindow" Height="350" Width="525">
    <Grid Margin="0,0,0,20" x:Name="rootGrid">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <Button Grid.Row="0" Command="{Binding ToggleCmd}">Toggle Last Name Visible</Button>
        <CheckBox Grid.Row="1" IsChecked="{Binding IsLastNameVisible}">Is Last Name Visible</CheckBox>

        <telerik:RadMultiColumnComboBox Grid.Row="2">
            <telerik:RadMultiColumnComboBox.ItemsSourceProvider>
                <telerik:GridViewItemsSourceProvider ItemsSource="{Binding AllClubs}" AutoGenerateColumns="false" >
                    <telerik:GridViewItemsSourceProvider.Columns>
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}"   />
                        <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}"
                                                    IsVisible="{Binding DataContext.IsLastNameVisible , ElementName=rootGrid}" />
                    </telerik:GridViewItemsSourceProvider.Columns>
                </telerik:GridViewItemsSourceProvider>
            </telerik:RadMultiColumnComboBox.ItemsSourceProvider>
        </telerik:RadMultiColumnComboBox>

    </Grid>
</Window>

Can you please add the ability to select (and scroll into view) a file/folder in the RadFileDialog by keyboard? i.e. when focused within the files section of the dialog, typing 's' should scroll to the first file starting with 's' and select it.

All the Win32 and WPF file dialogs support this.

In the Shape Tool - Line Shape -> lock ratio, this currently constrains the lines to be diagonal.

IMHO it'd be a more common use case that users would want to constrain a line to be horizontal or vertical.

I would suggest changing the default behaviour of the ratio lock for line shapes to be horizontal/vertical and not diagonal.

You could leave the Ctrl key modifier to still constrain diagonally, but add a Shift key modifier so that holding shift constrains the line vertically / horizontally (this would coincide with Photoshop behaviour).

I know it's not a great idea to change behaviour on published code, so could consider adding a LockRatioMode property to the shape tool that defaults to Diagonal, and allow coders to set it to HorizontalVertical to implement the new behaviour.

Thanks

Hi Telerik-Team,

i found a bug similar to forum post, but not the same.

In MultiColumnComboBox when SelectionBoxesVisibility is set  to 'collapsed' and and whatever you set AutoCompleteMode to (different from the forum post),

if you select the first item it is not shown. Although the NullText is removed. It works perfectly for all the other items. This is quiet a problem if you only have one item in the dropwdown :D

Regards,

Mats

RadMaskedNumericInput Maximum value setting is not working with hungarian culture settings.

Steps to reproduce:

- Open the attached project, fix the references and start the application

- Click button "English"

- Select the first item from the dropdown

- Inputs are changing to 1433.2 and 1810.9 - OK

- Select the 2nd item from the dropdown

- Inputs are changing to 0 and 59 - OK

- Click button "Hungarian"

- Select the first item from the dropdown

- Inputs are changing to 1433.2 and 1433.2 - NOT OK, Why?

Thanks,

Roberto

When filter is added to merged cells, there should be a single filter icon displayed in the combined cell. Instead, multiple filters appear - one for each column in the range of the merged cells.

The SUMIFS function adds all of its arguments that meet multiple criteria.

A list of the supported functions is available at http://docs.telerik.com/devtools/document-processing/libraries/radspreadprocessing/features/formulas/functions

This function can be implemented as a custom function. Check the following resources for more details on how to achieve that:

- http://docs.telerik.com/devtools/document-processing/libraries/radspreadprocessing/features/formulas/custom-functions
- https://github.com/telerik/xaml-sdk/tree/master/Spreadsheet/WPF/CustomFunctions

The issue is reproducible only on Windows XP. On newer versions of windows, the images are rendered as expected.

WORKAROUND: You may inherit DctDecode class in order to implement custom decoder. For instance, you may try calling DecodeWithJpegDecoder method from the base class as mentioned in the note of this documentation article:

http://docs.telerik.com/devtools/wpf/controls/radpdfviewer/customization-and-extensibility/customize-pdf-rendering

A sample implementation of these custom decoder may be seen below:

public class CustomDctDecode : DctDecode
{
    public override byte[] Decode(PdfObject decodedObject, byte[] inputData, DecodeParameters parms)
    {
        return DecodeWithJpegDecoder(inputData);
    }
}