wpf - 新的扩展WPFToolkit ColorPicker

Question

我一直在尝试从我的应用程序中使用的工具包中获得新的选色器，但没有成功...

这是示例代码，应该选择窗口背景的颜色来填充当前颜色，并且在重新选择之后，应该将背景颜色更改为选定的颜色...

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="100" Width="200" xmlns:extToolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit/extended" 
        Name="Window" Background="blue">
    <Grid>
        <extToolkit:ColorPicker Name="colorPicker1" 
                                SelectedColor="{Binding ElementName=Window,Path=Background}" 
                                CurrentColor="{Binding ElementName=Window,Path=Background}" />
    </Grid>
</Window>

这是我能够在彩色选择器上找到的所有文档...
http://elegantcode.com/2010/08/15/extended-wpf-toolkit-new-colorpicker-control/

Answer 1

这里的问题是Window.Background是画笔，SelectedColor和CurrentColor是Color。您可以使用转换器来使它正常工作。

<Window x:Class="WpfApplication1.MainWindow" 
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:extToolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit/extended"
        xmlns:local="clr-namespace:WpfApplication1"
        Title="MainWindow" Height="100" Width="200"   
        Name="Window" Background="blue">
    <Window.Resources>
        <local:BrushColorConverter x:Key="BrushColorConverter"/>
    </Window.Resources>
    <Grid>
        <extToolkit:ColorPicker Name="colorPicker1"  
                                SelectedColor="{Binding ElementName=Window, 
                                    Path=Background, 
                                    Converter={StaticResource BrushColorConverter}}"
                                CurrentColor="{Binding ElementName=Window, 
                                    Path=Background, 
                                    Converter={StaticResource BrushColorConverter}}" />
    </Grid>
</Window> 

和转换器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;
using System.Windows.Media;

namespace WpfApplication1
{
    public class BrushColorConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            SolidColorBrush brush = value as SolidColorBrush;
            return brush.Color;
        }
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Color color = (Color)value;
            return new SolidColorBrush(color);
        }
    }
}