msfs-popout-panel-manager/MainApp/UserControl/Dialog/AddProfileDialog.xaml

<UserControl
    x:Class="MSFSPopoutPanelManager.MainApp.AddProfileDialog"
    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:local="clr-namespace:MSFSPopoutPanelManager.MainApp"
    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:viewmodel="clr-namespace:MSFSPopoutPanelManager.MainApp.ViewModel"
    xmlns:wpf="clr-namespace:MaterialDesignThemes.Wpf;assembly=MaterialDesignThemes.Wpf"
    Width="400"
    Height="210"
    DataContext="{Binding RelativeSource={RelativeSource Self}, Path=ViewModel}"
    mc:Ignorable="d">
    <UserControl.Resources>
        <local:InverseBooleanOrConverter x:Key="InverseBooleanOrConverter" />
    </UserControl.Resources>
    <StackPanel>
        <materialDesign:ColorZone
            Height="30"
            materialDesign:ElevationAssist.Elevation="Dp4"
            Mode="PrimaryDark">
            <StackPanel
                Grid.Row="0"
                Margin="24,0,0,0"
                HorizontalAlignment="Left"
                VerticalAlignment="Center">
                <TextBlock Text="Add Profile" />
            </StackPanel>
        </materialDesign:ColorZone>
        <StackPanel
            Height="84"
            Margin="24,12,24,16"
            HorizontalAlignment="Stretch"
            FocusManager.FocusedElement="{Binding ElementName=TxtBoxName}">
            <ComboBox
                materialDesign:HintAssist.FloatingScale="0.75"
                materialDesign:HintAssist.Hint="Copy From Profile"
                DisplayMemberPath="Name"
                ItemsSource="{Binding ProfileData.Profiles}"
                MaxDropDownHeight="280"
                SelectedValue="{Binding CopiedProfile, Mode=TwoWay}"
                Style="{StaticResource MaterialDesignFloatingHintComboBox}" />
            <TextBox
                x:Name="TxtBoxName"
                Margin="0,8,0,0"
                VerticalAlignment="Center"
                materialDesign:HintAssist.FloatingScale="0.75"
                materialDesign:HintAssist.Hint="Profile Name"
                Style="{StaticResource MaterialDesignFloatingHintTextBox}">
                <Binding
                    Mode="TwoWay"
                    Path="Profile.Name"
                    UpdateSourceTrigger="PropertyChanged"
                    ValidatesOnDataErrors="True">
                    <Binding.ValidationRules>
                        <viewmodel:PostiveValidationRule />
                    </Binding.ValidationRules>
                </Binding>
            </TextBox>
        </StackPanel>
        <StackPanel
            Height="50"
            Margin="24,12,24,0"
            HorizontalAlignment="Right"
            Orientation="Horizontal">
            <Button
                x:Name="BtnAccept"
                Command="{x:Static wpf:DialogHost.CloseDialogCommand}"
                CommandParameter="ADD"
                IsDefault="True"
                Style="{StaticResource MaterialDesignOutlinedButton}">
                ACCEPT
                <Button.IsEnabled>
                    <MultiBinding Converter="{StaticResource InverseBooleanOrConverter}" Mode="TwoWay">
                        <Binding ElementName="TxtBoxName" Path="(Validation.HasError)" />
                        <Binding Path="Profile.Name.Length" />
                    </MultiBinding>
                </Button.IsEnabled>
            </Button>
            <Button
                x:Name="BtnCancel"
                Margin="12,0,0,0"
                Command="{x:Static wpf:DialogHost.CloseDialogCommand}"
                CommandParameter="CANCEL"
                IsCancel="True"
                Style="{StaticResource MaterialDesignOutlinedButton}">
                CANCEL
            </Button>
        </StackPanel>
    </StackPanel>
</UserControl>