C# WPF FontDialog字体对话框，ColorDialog颜色对话框 引用

WPF 并没有内置FontDialog和ColorDialog，但可以通过引用 Windows Forms 的控件来实现字体和颜色选择对话框功能。FontDialog 允许用户选择字体、样式、大小等设置。

添加 Windows Forms的引用

• 项目工程：右键“引用”=》“添加引用”=》勾选System.Windows.Forms

• 点击“确认”即可添加成功；

• 点击“浏览”可以手动选择添加指定程序集文件；
  

• 浏览选择System.Windows.Forms.dll动态库文件

• 默认路径：C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework
  

• 添加成功
  

• 在C# WPF应用程序中，不能直接使用System.Drawing.Font，因为System.Drawing.Font是Windows Forms的一部分，而不是WPF。WPF使用System.Windows.Media.FontFamily来表示字体。需要做相应的转换才可以使用；

• WinForm中的Color( System.Drawing.Color)与Wpf中Color(System.Windows.Media.Color)也需要要相互转换才能使用；

代码示例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Forms;

namespace WpfColorFontDialog
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void btnSetFont_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Forms.FontDialog fontDialog = new System.Windows.Forms.FontDialog();
            if (fontDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                // System.Drawing.Font DFont = new System.Drawing.Font("宋体", 10, System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic);
                
                System.Drawing.Font drawingFont = fontDialog.Font;
                FontFamily fontFamily = new FontFamily(drawingFont.Name);
                double fontSize = drawingFont.Size;
                FontWeight fontWeight = FontWeights.Bold;
                if (drawingFont.Bold)
                {
                    fontWeight = FontWeights.Bold;
                }
                else {
                    fontWeight = FontWeights.Normal;
                }
                FontStyle fontStyle = (drawingFont.Style & System.Drawing.FontStyle.Italic) != 0 ? FontStyles.Italic : FontStyles.Normal;

                txtBlock.FontFamily = fontFamily;
                txtBlock.FontSize = fontSize;
                txtBlock.FontStyle = fontStyle;
                txtBlock.FontWeight = fontWeight;
            }
        }



        private void btnSetColor_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Forms.ColorDialog colorDialog = new System.Windows.Forms.ColorDialog();
            if (colorDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                System.Windows.Media.Color MColor = new System.Windows.Media.Color();
                MColor = System.Windows.Media.Color.FromArgb(colorDialog.Color.A, colorDialog.Color.R, colorDialog.Color.G, colorDialog.Color.B);
                System.Windows.Media.Brush BColor = new SolidColorBrush(MColor);
                
                txtBlock.Background = BColor;
            }
        }
    }
}