<Style x:Key="StyleWej" TargetType="{x:Type TabItem}">
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="AllowDrop" Value="True"/>
            <EventSetter Event="PreviewMouseMove" Handler="TabItem_PreviewMouseMove"/>
            <EventSetter Event="Drop" Handler="TabItem_Drop"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate  TargetType="{x:Type TabItem}">
                        <Grid>
TextBlock TextWrapping="Wrap" Text="Adres(hex)" FontSize="15" Margin="10,10,396,444"/>
                            <ComboBox x:Name="AddressWej" HorizontalAlignment="Left" Margin="134,11,0,0" VerticalAlignment="Top" Width="120">
                                <ComboBoxItem>30</ComboBoxItem>
                                <ComboBoxItem>31</ComboBoxItem>
                                <ComboBoxItem>32</ComboBoxItem>
                                <ComboBoxItem>33</ComboBoxItem>
                            </ComboBox>

                            <TextBlock TextWrapping="Wrap" Text="Wejscie 1:" FontSize="15" Margin="10,126,396,337"/>
                            <TextBlock TextWrapping="Wrap" Text="Wejscie 2:" FontSize="15" Margin="10,156,396,307"/>
                            <TextBox TextWrapping="Wrap" Text="Wejscie1" Width="120" Margin="134,129,231,331"/>
                            <TextBox TextWrapping="Wrap" Text="Wejscie2" Width="120" Margin="134,157,231,302"/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

 private void AddTabItemForCard(string cardName)
        {
            var style = (Style)resources.FindResource("Style" + cardName);
            var tabItem = new TabItem();
            tabItem.Style = style;
            tabItem.Header = cardName;
            TabCards.Items.Add(tabItem);
        }