在 C# WPF开发中颜色对话框控件（ColorDialog）用于对界面中的背景、文字…（拥有颜色属性的所有控件）设置颜色，例如设置标签控件的背景色。
颜色对话框的运行效果如下图所示：
标签背景色设置后如下：
xml代码：
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<Window x:Class="WpfApp.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:WpfApp" Icon="https://demosc.chinaz.net/Files/pic/iconsico/8254/e9.ico" mc:Ignorable="d" Title="TestImage" Height="600" Width="900" WindowStartupLocation="CenterScreen"> <Window.Resources> <ResourceDictionary x:Uid="CommandDict"> <RoutedCommand x:Uid="SetBackGround" x:Key="SetBackGround"/> </ResourceDictionary> </Window.Resources> <Window.CommandBindings> <CommandBinding x:Uid="SetBackGroundParameter" Command="{StaticResource SetBackGround}" Executed="Pic_BackGround_Click" /> </Window.CommandBindings> <Window.InputBindings> <KeyBinding x:Uid="AddKeyBinding" Key="O" Modifiers="Ctrl+Shift" Command="{StaticResource SetBackGround}"/> </Window.InputBindings> <Grid> <DockPanel x:Name="myDockPanel"> <Menu DockPanel.Dock="Top" Height="30" Margin="0,0,0.333,0" VerticalAlignment="Top" HorizontalAlignment="Left"> <MenuItem Header="文件" Height="30" Background="Violet"> <MenuItem Header="打开" InputGestureText="Ctrl+0"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j14.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="保存" InputGestureText="Ctrl+S"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j13.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="另存为" InputGestureText="F12"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j12.ico"/> </MenuItem.Icon> </MenuItem> <Separator/> <MenuItem Header="打印预览"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j11.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="打印" InputGestureText="Ctrl+P"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j10.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="退出" InputGestureText="F4"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/7595/j9.ico"/> </MenuItem.Icon> </MenuItem> </MenuItem> <MenuItem Header="编辑" Height="30" Background="Aqua"> <MenuItem Header="背景图片" InputGestureText="Ctrl + Shift + O" Click="Pic_BackGround_Click"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/8255/b8.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="恢复" InputGestureText="Ctrl+Y"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/8255/b1.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="重做" InputGestureText="Ctrl+Z"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/8255/b2.ico"/> </MenuItem.Icon> </MenuItem> <Separator/> <MenuItem Header="复制" InputGestureText="Ctrl+C"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/8255/b4.ico"/> </MenuItem.Icon> </MenuItem> <MenuItem Header="粘贴" InputGestureText="Ctrl+V"> <MenuItem.Icon> <Image Source="https://demosc.chinaz.net/Files/pic/iconsico/8255/b5.ico"/> </MenuItem.Icon> </MenuItem> <Separator/> <MenuItem Header="字体"> <MenuItem Header="黑体" InputGestureText="Ctrl+B" IsCheckable="True"/> <MenuItem Header="斜体" InputGestureText="Ctrl+I" IsCheckable="True"/> <Separator/> <MenuItem Header="增大字体" IsCheckable="True"/> <MenuItem Header="缩小字体" IsCheckable="True"/> </MenuItem> </MenuItem> </Menu> <Label x:Name="colorLabel" DockPanel.Dock="Left" Width="200" Height="100" Background="AntiqueWhite" MouseDoubleClick="ColorLabel_MouseDoubleClick"></Label> </DockPanel> </Grid></Window> |
c#代码：
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using System;using System.Windows;using System.Windows.Media;using System.Windows.Forms;using System.Windows.Media.Imaging;using System.Windows.Shapes;using System.Windows.Controls;using System.Windows.Forms;namespace WpfApp{ /// <summary> /// MainWindow.xaml 的交互逻辑 /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void Pic_BackGround_Click(object sender, RoutedEventArgs e) { OpenFileDialog pic = new OpenFileDialog(); pic.Title = "设置背景图片"; pic.Filter = "图形文件(*.jpg)|*.jpg"; if (pic.ShowDialog() == System.Windows.Forms.DialogResult.OK) { ImageBrush p = new ImageBrush(new BitmapImage(new Uri(pic.FileName, UriKind.Absolute))); Console.WriteLine(pic.FileName); myDockPanel.Background = p; } } private void ColorLabel_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e) { ColorDialog cl = new ColorDialog(); if(cl.ShowDialog() == System.Windows.Forms.DialogResult.OK) { colorLabel.Background = new SolidColorBrush(Color.FromArgb(cl.Color.A,cl.Color.R,cl.Color.G,cl.Color.B)); } } }} |
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原文链接：https://blog.csdn.net/m0_51460728/article/details/122274209
