Questions on UI for WinUI Forum

1 answer

248 views

Clicking Button inside the DataGrid does nothing

When clicking button inside the DataGrid row the command doesn't get executed in the ViewModel.

Both Page and ViewModel are created by the DI container so I need to be able to pass the POCO object of the row where the button is clicked to the ViewModel.

 <telerikGrid:RadDataGrid DataContext="{x:Bind ViewModel}" ItemsSource="{x:Bind ViewModel.Source}" AutoGenerateColumns="False">
                            <telerikGrid:RadDataGrid.Columns>
                                <telerikGrid:DataGridTextColumn PropertyName="UserName" Header="User Name"/>
                                <telerikGrid:DataGridTextColumn PropertyName="UserEmail" Header="User Email"/>
                                <telerikGrid:DataGridBooleanColumn PropertyName="UserActiveIndicator" Header="User Status" />
                                <telerikGrid:DataGridDateColumn PropertyName="RecordCreated" Header="Date Created"/>
                                <telerikGrid:DataGridDateColumn PropertyName="RecordModified" Header="Date Modified"/>
                                <telerikGrid:DataGridTemplateColumn Header="Edit" Width="81">
                                    <telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                                        <DataTemplate x:DataType="vm:SearchUserViewModel">
                                            <Button x:Name="editButton" Command="{x:Bind  EditUserCommand}" CommandParameter="{Binding }">
                                                <SymbolIcon Symbol="Edit"/>
                                            </Button>
                                        </DataTemplate>
                                    </telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                                </telerikGrid:DataGridTemplateColumn>
                            </telerikGrid:RadDataGrid.Columns>
                        </telerikGrid:RadDataGrid>

Buttons

DataGrid

answered on 19 Sep 2022

0 answers

290 views

Datagrid serverside filtering

Hi

I am using the Datagrid with Data Virtualization and I need to implement server side filtering.

So I added the "FilterRequested" command to get the information on how the user wants to filter. I then persist the filters in my viewmodel, clear all data in the datagrids itemsource, send a request to the server and refill the itemsource with the first <batchsize> of the filtered rows. All following requests to the server (e.g.. throug scolling) will use the persisted filter values (and I do the same for sorting). This kind of works so far.

My Problem: I have a column that represents a state in form of an enum. Out of the box I can only filter for distinct states that are in the grid right now, but there are potentially more states in rows that have not been loaded yet. Is there a way to override the distinct filter options with static ones (in my case all enum values)? Even if there is an override, it is probably not possible to figure out which values were selected, because the DistinctValuesFilterDescriptor that is delivered via the FilterRequestContext of the command just gives me all elements that would be left after the filter, not the values selected.

kind regards
Dominik

DataGrid

asked on 29 Jul 2022

1 answer

372 views

[Solved] [DataGrid] UI/UX Differences with UWP

Hi,

On the video, you see the WinUI and UWP versions of the same implementation. I use expando to set the ItemsSource.

Differences:
1- Header has a mouse over state on WinUI. What is the trick to not have this?

2- In my DescriptionControl.xaml, the control has an hard coded value of Height=192. WinUI grid ignores this value. However, setting the RowHeight in the RadDataGrid does the job. Is it a bug/regression/new expectation?

3- For each timestamp (TimestampColumn), the SizeMode is Auto. In WinUI, my columns are much larger than UWP version.

4- Surely super easy, how to change the foreground and background color of the header column? Background and Foreground don't exist on DataGridTypedColumn. The default output of UWP is nicer.

Thank you!

DataGrid

answered on 15 Jul 2022

1 answer

308 views

Telerik WinUI 2.X -- VS Extensions for 2022

I was noticing that there is not a VS Extensions for 2022 for the product set WinUI 2.X in my Progress folders. And I'm not sure what this means.

As you can see I have the templates for WinUI. What am I missing?

Sincerely,
Keith Nicholson

General Discussions

answered on 13 Jul 2022

1 answer

414 views

[Solved] [RadDataGrid] Crash at startup with or without ItemsSource

Hi,

Load the sample app, it generates: Error HRESULT E_FAIL has been returned from a call to a COM component.

I have the same in a UWP app and it works perfectly.

<grid:RadDataGrid
x:Name="DataGrid"
Grid.Row="1"
AutoGenerateColumns="True"
Background="#f0f0f0"
BorderThickness="0"
FrozenColumnCount="4"
GridLinesThickness="1"
GridLinesVisibility="Horizontal"
Margin="0,16,0,0"
SelectionMode="None"
UserColumnReorderMode="None"
UserFilterMode="Disabled"
UserGroupMode="Disabled">
<grid:RadDataGrid.Commands>
<powerNumbers:PowerNumbersAutoGenerateCommand />
</grid:RadDataGrid.Commands>
</grid:RadDataGrid>

DataGrid

answered on 12 Jul 2022

2 answers

443 views

TabControls fails in Window

This works:

<Window
    x:Class="xxxxxx"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:telerik="using:Telerik.UI.Xaml.Controls" 
    mc:Ignorable="d">
    <Grid>
        <TabView>
            <TabView.TabItems>
                <TabViewItem Header="CMD Prompt"/>
                <TabViewItem Header="PowerShell"/>
                <TabViewItem Header="Windows Subsystem for Linux"/>
            </TabView.TabItems>
        </TabView>
    </Grid>
</Window>

This does not due to the following. Using all of the latest nuget packages (2.0). I suspect it is related to being in a Window vs a control:

Microsoft.UI.Xaml.Markup.XamlParseException
HResult=0x802B000A
Message=XAML parsing failed.
Source=WinRT.Runtime
StackTrace:
at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|20_0(Int32 hr)

<Window
    x:Class="xxxxxx"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:telerik="using:Telerik.UI.Xaml.Controls" 
    mc:Ignorable="d">
    <Grid>
        <telerik:RadTabControl>
            <telerik:RadTabControl.Items>
                <telerik:RadTabItem Header="Tab 1" Content="The content of tab item 1"/>
                <telerik:RadTabItem Header="Tab 2" Content="The content of tab item 2"/>
                <telerik:RadTabItem Header="Tab 3" Content="The content of tab item 3"/>
                <telerik:RadTabItem Header="Tab 4" Content="The content of tab item 4"/>
            </telerik:RadTabControl.Items>
        </telerik:RadTabControl>
    </Grid>
</Window>

TabControl

answered on 18 May 2022

0 answers

455 views

Package Telerik.WinUI.Controls 1.2.0 is not compatible with net6.0

Error NU1202 Package Telerik.WinUI.Controls 1.2.0 is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Package Telerik.WinUI.Controls 1.2.0 supports:
- net5.0-windows10.0.19041 (.NETCoreApp,Version=v5.0)
- uap10.0 (UAP,Version=v10.0)

Is the above true? I am using 1.2 via nuget. Is that correct?

General Discussions

asked on 29 Apr 2022

1 answer

262 views

[Solved] WInUI has Three Binaries?

So I was looking at the bits and I see three different sets of Binaries for the WinUI set. What is the difference?

Sincerely,

Keith

General Discussions

answered on 29 Apr 2022

1 answer

434 views

New user, List View

Ok so I have started a new project from the template and this is my XAML code#

I am getting the following error and cannot work out why ?

WMC0035 Duplication assignment to the 'Content' property of the 'Window'

WMC9997 There are multiple root elements. Line 21, position

<Window
    x:Class="Megasync_EAB.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="ListViewBasicSample">
    <Grid>
        <ListView
        x:Name="BaseExample"
        ItemTemplate="{StaticResource ContactListViewTemplate}"
        BorderThickness="1"
        BorderBrush="{ThemeResource SystemControlForegroundBaseMediumLowBrush}"
        Width="350"
        Height="400"
        HorizontalAlignment="Left"/>
    </Grid>

</Window>

<DataTemplate x:Key="ContactListViewTemplate" x:DataType="local:MegaData">
    <TextBlock Text="{x:Bind Name}" x:Phase="1" Margin="0,5,0,5"/>
</DataTemplate>

ListView

answered on 13 Apr 2022

1 answer

286 views

Excel export support in DataGrid

Hi,

Any idea when we can expect the excel export functionality in Telerik WinUI?

Thanks

DataGrid

answered on 11 Feb 2022