WPF style (Background)

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カーソルフォーカス位置の表示例




<Window.Resources>

    <Style x:Key="xKey_FocusColor" TargetType="TextBox" x:Name="xName_SelectText">

        <Style.Triggers>

            <Trigger Property="IsKeyboardFocused" Value="True">

                <Setter Property="Background" Value="Gold" />

            </Trigger>

            <Trigger Property="IsKeyboardFocused" Value="False">

                <Setter Property="Background" Value="Beige" />

            </Trigger>

        </Style.Triggers>

    </Style>

</Window.Resources>









<TextBox Grid.Column="6" Grid.Row="3" Margin="3" Style="{StaticResource xKey_FocusColor}" Name="text3" />

<TextBox Grid.Column="6" Grid.Row="4" Margin="3" Style="{StaticResource xKey_FocusColor}" Name="text4" />

<TextBox Grid.Column="6" Grid.Row="5" Margin="3" Style="{StaticResource xKey_FocusColor}" Name="text5" />










Style w_style_focus = new Style(typeof(TextBox));

//

Trigger w_trigger_focusGet = new Trigger { Property = TextBox.IsKeyboardFocusedProperty, Value = true };

w_trigger_focusGet.Setters.Add(new Setter(TextBox.BackgroundProperty, new SolidColorBrush(Colors.Pink)));

w_style_focus.Triggers.Add(w_trigger_focusGet);

//

Trigger w_trigger_focusOut = new Trigger { Property = TextBox.IsKeyboardFocusedProperty, Value = false };

w_trigger_focusOut.Setters.Add(new Setter(TextBox.BackgroundProperty, new SolidColorBrush(Colors.LawnGreen)));

w_style_focus.Triggers.Add(w_trigger_focusOut);

//

z_textName01[idx].Style = w_style_focus;










//*************************************************

//  TextBox01 

//*************************************************

void z_TextCode01_PreviewMouseUp(object sender, MouseButtonEventArgs e)

{

    TextBox w_textBox = (TextBox)e.Source;

    int idx = idx_textCode01[w_textBox];

}

void z_TextCode01_PreviewGotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)

{

    TextBox w_textBox = sender as TextBox;

    w_textBox.Background = new SolidColorBrush(Colors.Yellow);

}

void z_TextCode01_PreviewLostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)

{

    TextBox w_textBox = sender as TextBox;

    w_textBox.Background = new SolidColorBrush(Colors.AliceBlue);

}

void z_TextCode01_PreviewKeyDown(object sender, KeyEventArgs e)

{

    TextBox w_textBox = (TextBox)e.Source;

    int idx = idx_textCode01[w_textBox];

    if (e.Key == Key.Enter)

    {

        z_textCode02[idx].Focus();

    }

    if (e.Key == Key.Up)

    {

        if (idx > 1)

        {

            z_textCode01[idx - 1].Focus();

        }

    }

}




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