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for some reason the XAML source code (see below) is not discoverable by the Integrated Development Environment (IDE).

<Page
    x:Class="Network.Interface"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Network"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

     <Grid>

    <muxc:TabView>
        <muxc:TabView.TabItems>
            <muxc:TabViewItem />
        </muxc:TabView.TabItems>
    </muxc:TabView>

    </Grid>
</Page>

Notice

IDE - JetBrains Rider 2021.1.2

1 Answers1

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If you want to use muxc:TabView on xaml page correctly, please refer to the following steps.

1.Download the corresponding package through Package Manager. Steps: Reference->Manage NuGet Packages->Browse->Search Microsoft.UI.Xaml.Controls and install it.

enter image description here

2.Add xmlns:muxc="using:Microsoft.UI.Xaml.Controls" to page element, as follows:

<Page
...
xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
...
</Page>
dear_vv
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  • The only package that is associated with the TabView class is: `Microsoft.Toolkit.Uwp.UI.Controls` –  Apr 27 '21 at 13:43