Questions on UI for WPF Forum

1 answer

121 views

[Solved] How to change the background color of RadSplitButton when the DropDown was opened?

This is about the RadSplitButton in UI for WPF. I use the Windows 8 theme.

RadSplitButton closed:

RadSplitButton opened:

I want to change that blue color (#25A0DA) to something that's not associated with the theme. I already change the colors of the Windows8Palette and the blue default color seems to be the AccentColor - I don't want to change the AccentColor, though (I set that to something different, which looks great everywhere except the RadSplitButton).

I already added the control template for RadSplitButton and it does work - when I change values I see those in the UI. But which value do I have to change to change the color when RadSplitButton was opened? I couldn't find it.

The XAML sample from the screenshots:

        <telerik:RadSplitButton Content="This is a RadSplitButton" HorizontalAlignment="Left" Margin="80,70,0,0" VerticalAlignment="Top">
            <telerik:RadSplitButton.DropDownContent>
                <StackPanel>
                    <telerik:RadButton Content="This is a RadButton" HorizontalContentAlignment="Left"/>
                    <telerik:RadButton Content="This is a RadButton (2)" HorizontalContentAlignment="Left"/>
                </StackPanel>
            </telerik:RadSplitButton.DropDownContent>
        </telerik:RadSplitButton>

Buttons

answered on 13 Aug 2024

0 answers

140 views

Invalid Block Length Exception when working with protected zip archive Q2 2024

I have a class wrapper for working with the Telerik zip library. Since I updated my project to work with a new version (Q2) there started a problem with zip files. I can create a zip file protected with some password, but I cannot read or update it, may some problem is with decryption operation, which also occurs in default Windows Explorer and 7Zip application.

There's a code that I use for the wrapper:

public void Create(string archivePath, string? password = null)
{
using var baseStream = fileSystem.FileStream.New(archivePath, FileMode.Create, FileAccess.ReadWrite);
using var archive = ZipArchive.Create(baseStream, null, compressionSettings, GetEncryptionSettings(password));
}

public void SerializeEntry<T>(string archivePath, string entryName, T entry, string? password = null)
{
using var baseStream = fileSystem.FileStream.New(archivePath, FileMode.Open, FileAccess.ReadWrite);
using var archive = ZipArchive.Update(baseStream, null, compressionSettings, GetDecryptionSettings(password));
archive.GetEntry(entryName)?.Delete();
XmlInOut<T>.SaveToStream(archive.CreateEntry(entryName).Open(), entry);
}

public T DeserializeEntry<T>(string archivePath, string entryName, string? password = null)
{
using var baseStream = fileSystem.FileStream.New(archivePath, FileMode.Open, FileAccess.ReadWrite);
using var archive = ZipArchive.Read(baseStream, null, compressionSettings, GetDecryptionSettings(password));
return XmlInOut<T>.LoadFromStream(archive.GetEntry(entryName).Open());
}

private EncryptionSettings GetEncryptionSettings(string? password)
{
var result = EncryptionSettings.CreateAesPasswordEncryptionSettings();
result.Password = password;
return result;
}
private DecryptionSettings GetDecryptionSettings(string? password)
{
var result = DecryptionSettings.CreateDecryptionSettings();
result.PasswordRequired += (s, a) => a.Password = password;
return result;
}

General Discussions

asked on 12 Aug 2024

1 answer

115 views

Managing Two-Row Headers in GridView with ControlPanel Integration Issues

I have a GridView with a few rows that have longer headers than I need. To address this, I implemented two-row headers, as shown in one of the screenshots. However, I am using a ControlPanel for a few settings, one of which is hiding and revealing columns in my GridView. This feature doesn't work properly with my two-row headers, as seen in the screenshots.

Initially, when I open the ControlPanel, all two-row headers disappear, leaving empty headers. When I hide a column with a two-row header, the name of the column (header) disappears from the ControlPanel, but the checkbox remains, as shown in the screenshots. When I reveal the column again, the header reappears.

My question is: How should I manage headers when I want them to be two-row?

GridView

answered on 12 Aug 2024

1 answer

196 views

ArcGIS provider usage

Is there a reason the ArcGIS provider does not require a key? Following the documentation shows the map without any issues.

https://docs.telerik.com/devtools/wpf/controls/radmap/features/providers/arcgis

Also, is there a way to use other styles or basemaps other than what the control provides? In particular, the imagery hybrid, which is aerial imagery with the roads/labels.

Is it possible to change the max zoom? ArcGisWorldMapSourceBase.cs uses a max zoom of only 19. I have the same issue with the Bing and Azure providers. I'd like to use the higher zoom levels available and not have the map control scale the images, which will then be blurry.

Map

answered on 12 Aug 2024

1 answer

126 views

2D diagram bound to 3D dataset encoding z-values with a color gradient

I need to display a dataset of a scanned item where the dataset is a list of 3D values (X, Y and Z)
I want the diagram to display the Image as be a top-down view, using X and Y coordinates from the dataset using the the height (Z) to color encode the point using a color gradient.

Using a 3D RadCartesianChart3D component I have created something similar, see the attached RadCartesianChar3D image.
What I need now is a 2D image, something like what I try to illustrate in the attached ColorEncodedItem image.

What I need to know, is what component I should use for this job.
I expect that using a RadCartesianChart3D will be to CPU intensive for the platform I will be running this software on + I don't know, how to make a top-down view of a diagram using this component

ChartView

Diagram

answered on 08 Aug 2024

0 answers

125 views

Move docking(and its children) panel when the main window is moving

Hello im using telerik version 2021.3.909
I have a RadDocking with a lot of RadPanes that are created with DockingPaneFactory
Most of those panes are FloatingDockable which means when i move my main screen the the 2nd(or any other) monitor those RadPanes stays afloat on the first screen.

I know i can change all of them to docking panels and this will solve my problem, but because i have a lot of RadPanes i cannot place them with Dock.Left/Right/etc

My goal is that all my RadPanes will move when the main window is moving(or resizing)

Docking

LayoutControl

Window

asked on 08 Aug 2024

1 answer

153 views

[Solved] TreeView not loaded after ItemContainerStyle

Hello,

I would like to ask for your help. When creating RadTreeView my ItemContainerStyle is not working. I would like to connect ViewModel IsExpanded with RadTreeViewItem but I can't do it. The component works fine for me if I define a HierarchicalDataTemplate for the Item template as follows.

   <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
       <Grid.Resources>

             <HierarchicalDataTemplate x:Key="ItemTemplateTree"
                                       ItemsSource="{Binding Children}">
                 <StackPanel Orientation="Horizontal">
                     <TextBlock Text="{Binding Name}" FontWeight="Bold" />
                     <TextBlock Text="{Binding Value, StringFormat=': {0}'}" />
                 </StackPanel>
             </HierarchicalDataTemplate>
         </Grid.Resources>
 <telerik:RadTreeView  Name="JsonTreeView"
             ItemsSource="{Binding SelectedItemInContent.MediaTreeInfoJson}"
             IsVirtualizing="True"
             SelectionMode="Extended"
             ItemTemplate="{StaticResource ItemTemplateTree}"
            />

     </Grid>

But if I try to change the ItemContainerStyle like in the Demo examples "ShuttleControl_WPF", the whole tree disappears. As if it doesn't have a properly defined Style.

<Style x:Key="nodeStyle" TargetType="telerik:RadTreeViewItem">
       <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>
   </Style>

The model I use for Items is as follows:

 public class JsonInfoTreeModel: ViewModelBase
    {
        private string name;
        private string value;
        private ObservableCollection<JsonInfoTreeModel> children;
        private bool isExpanded;

        public JsonInfoTreeModel()
        {
            Children = new ObservableCollection<JsonInfoTreeModel>();
            IsExpanded = true;
        }

        public string Name
        {
            get { return name; }
            set
            {
                if (name != value)
                {
                    name = value;
                    OnPropertyChanged(nameof(Name));
                }
            }
        }

        public string Value
        {
            get { return value; }
            set
            {
                if (this.value != value)
                {
                    this.value = value;
                    OnPropertyChanged(nameof(Value));
                }
            }
        }

        public ObservableCollection<JsonInfoTreeModel> Children
        {
            get { return children; }
            set
            {
                if (children != value)
                {
                    children = value;
                    OnPropertyChanged(nameof(Children));
                }
            }
        }

        public bool IsExpanded
        {
            get { return isExpanded; }
            set
            {
                if (isExpanded != value)
                {
                    isExpanded = value;
                    OnPropertyChanged(nameof(IsExpanded));
                }
            }
        }
    }

Thank you for any help.

************** Update ****************

ExamleDesk.WPF.zip

Styling

TreeView

updated question on 06 Aug 2024

0 answers

148 views

RadRadioButton Theme background overflow

Hi !

I'm using a radButton because if i use radRadioButton when i've "checked" it the background theme is green like the same unlock svg color, but i want make an exception background color when my RadRadioButton use this svg.

But my menu selection must be all radradiobutton because when one of them is selection page content (ViewModel) must change. the lock/unlock buttons are new because my project change and next access to the parts and conditioned by a validation page.

<UserControl.Resources>
<PathGeometry x:Key="UnLock" Figures="M18 1C15.24 1 13 3.24 13 6V8H4C2.9 8 2 8.89 2 10V20C2 21.11 2.9 22 4 22H16C17.11 22 18 21.11 18 20V10C18 8.9 17.11 8 16 8H15V6C15 4.34 16.34 3 18 3C19.66 3 21 4.34 21 6V8H23V6C23 3.24 20.76 1 18 1M10 13C11.1 13 12 13.89 12 15C12 16.11 11.11 17 10 17C8.9 17 8 16.11 8 15C8 13.9 8.9 13 10 13Z"/>
<PathGeometry x:Key="Lock" Figures="M12,17A2,2 0 0,0 14,15C14,13.89 13.1,13 12,13A2,2 0 0,0 10,15A2,2 0 0,0 12,17M18,8A2,2 0 0,1 20,10V20A2,2 0 0,1 18,22H6A2,2 0 0,1 4,20V10C4,8.89 4.9,8 6,8H7V6A5,5 0 0,1 12,1A5,5 0 0,1 17,6V8H18M12,3A3,3 0 0,0 9,6V8H15V6A3,3 0 0,0 12,3Z"/>
</UserControl.Resources>


<Grid Grid.Column="1" Width="50" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,0,0,5">
    <telerik:RadButton Cursor="Hand" Padding="4" Command="{Binding InitValidationCommand}">
            <Viewbox Width="32" Height="32">
            <Canvas Width="24" Height="24">
                <Path>
                    <Path.Style>
                        <Style TargetType="Path">
                            <Setter Property="Data" Value="{StaticResource ResourceKey=Lock}"/>
                            <Setter Property="Fill" Value="#F44336"/>
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding InitEtude.IsDeverrouille}" Value="True">
                                    <Setter Property="Data" Value="{StaticResource ResourceKey=UnLock}" />
                                    <Setter Property="Fill" Value="{telerik:Windows11Resource ResourceKey=AccentBrush}"/>
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </Path.Style>
                </Path>
            </Canvas>
        </Viewbox>
    </telerik:RadButton>
</Grid>

i've tested in other part of my project many option but to overflow theme checked definition :

- no success

<telerik:RadRadioButton Width="115" Height="50" Cursor="Hand" Margin="0,0,0,5" GroupName="test">
    <ControlTemplate TargetType="telerik:RadRadioButton">                                    
        <ControlTemplate.Triggers>
            <Trigger Property="IsChecked" Value="True">
                <Setter Property="Background" Value="Red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBackgroundBrush" Value="red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBrush" Value="blue"/>
            </Trigger>
            <Trigger Property="IsPressed" Value="True">
                <Setter Property="Background" Value="Red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBackgroundBrush" Value="red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBrush" Value="blue"/>
            </Trigger>
            <Trigger Property="IsEnabled" Value="True">
                <Setter Property="Background" Value="Red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBackgroundBrush" Value="red"/>
                <Setter Property="helpers:ThemeHelper.CheckedBrush" Value="blue"/>
            </Trigger>
        </ControlTemplate.Triggers>                                    
    </ControlTemplate>
</telerik:RadRadioButton>

Buttons

Styling

asked on 05 Aug 2024

0 answers

108 views

TreeListView item's IsExpanded returns false no matter what

I want to save the expansion state of my TreeListView before I reload the data and I use the following code:

foreach (var item in _currentTreeListView.Items)
{
    if (_currentTreeListView.IsExpanded(item))
    {
        expandedItems.Add(item);
    }
}

// Data update and TreeListView reload

foreach (var item in expandedItems)
{
    _currentTreeListView.ExpandHierarchyItem(item);
}

But _currentTreeListView.IsExpanded(item) returns false no matter if the corresponding item is expanded in the TreeListView. What's the problem?

TreeListView