WPF 精修篇 工具栏 tool

<ToolBarTray VerticalAlignment="Top" >
            <ToolBar >
                <Button Width="20" Content="B" Click="Button_Click"></Button>
                <Button Width="20" Content="I" Click="Button_Click_1"></Button>
                <Button Width="20" Click="Button_Click_2" >
                    <TextBlock Text="U" TextDecorations="Underline"   ></TextBlock>
                </Button>
            </ToolBar>
            <ToolBar Margin="0,0,-103,0" >
                <ComboBox Width="87" SelectionChanged="ComboBox_SelectionChanged" Margin="0" IsEditable="True">
                    <ComboBoxItem Content="8"></ComboBoxItem>
                    <ComboBoxItem Content="10"></ComboBoxItem>
                    <ComboBoxItem Content="12"></ComboBoxItem>
                    <ComboBoxItem Content="24"></ComboBoxItem>
                    <ComboBoxItem Content="36"></ComboBoxItem>

                </ComboBox>
            </ToolBar>
        </ToolBarTray>
        <TextBox x:Name="text" HorizontalAlignment="Left" Height="110" Margin="10,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="445"/>

combobox 设置 IsEditable =true 可以进行编辑哟~

private void Button_Click(object sender, RoutedEventArgs e)
        {
            text.FontWeight = text.FontWeight == FontWeights.Bold ? FontWeights.Normal : FontWeights.Bold;
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            text.FontStyle = text.FontStyle == FontStyles.Italic ? FontStyles.Normal : FontStyles.Italic;
        }

     

        private void Button_Click_2(object sender, RoutedEventArgs e)
        {
           text.TextDecorations = text.TextDecorations==TextDecorations.Underline? null:TextDecorations.Underline;
        }

        private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (text == null) return;
            ComboBox com = sender as ComboBox;
            if (com == null) return;
            ComboBoxItem bi = com.SelectedItem as ComboBoxItem;
            if (bi == null) return;
            text.FontSize = Convert.ToInt32(bi.Content.ToString());
        }