gpt4 book ai didi

c# - 在 WPF 中更改自定义复选框上的图像

转载 作者:太空狗 更新时间:2023-10-29 17:43:25 25 4
gpt4 key购买 nike

我创建了以下自定义 CheckBox,它使用图像而不是 CheckBox。但是,这很好用,我希望能够根据需要更改图像。理想情况下,我想使用应用程序资源 Properties.Resources.SomeImage16(一个 .png 文件)。 XAML 是

<Style x:Key="styleCustomCheckBox" 
TargetType="{x:Type CheckBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<StackPanel Orientation="Horizontal">
<Image x:Name="imageCheckBox"
Width="16"
Height="16"
Source="F:\Camus\ResourceStudio\Graphics\Images\UnPinned16.png"/>
<ContentPresenter VerticalAlignment="Center"/>
</StackPanel>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter TargetName="imageCheckBox"
Property="Source"
Value="F:\Camus\ResourceStudio\Graphics\Images\Pinned16.png"/>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter TargetName="imageCheckBox"
Property="Source"
Value="F:\Camus\ResourceStudio\Graphics\Images\UnPinned16.png"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

随着实现

<ListBox SelectionMode="Single" >
<StackPanel Orientation="Horizontal">
<CheckBox Style="{StaticResource styleCustomCheckBox}"
HorizontalAlignment="Left"
VerticalAlignment="Center"
Margin="4,0,4,0"/>
<TextBlock VerticalAlignment="Top"
Text="SomeRecentDocument.resx"/>
</StackPanel>
</ListBox>

如何在不创建新样式/模板的情况下更改用于自定义 CheckBox 的图像(即将固定/未固定更改为勾选/交叉等)?

感谢您的宝贵时间。

最佳答案

正如已经提到的@HighCore 需要使用矢量图形的能力。在这种情况下,要使用 Path,其中 Data 指向绘制对象的指定坐标 (MSDN)。

优点:

  • 不存储在文件中,体积较小

  • 动态改变颜色、大小和整体形状

缺点(在我看来):

  • 您并不总能为路径找到正确的Data

关于 minus:有专门的站点 ( www.modernuiicons.com ) 和实用程序可以将图像转换为 Data

使用Path改变CheckBox的样式:

样式

<Style x:Key="styleCustomCheckBox" TargetType="{x:Type CheckBox}">
<Setter Property="FontFamily" Value="Verdana" />
<Setter Property="FontSize" Value="14" />

<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<StackPanel Orientation="Horizontal">
<Path x:Name="MyPin" Width="18" Height="18" Stretch="Fill" Fill="#FF000000"
Data="F1 M 56.1355,32.5475L 43.4466,19.8526C 42.7886,20.4988 42.298,21.2123 41.9749,21.9932C 41.6519,22.7741 41.4903,23.5729 41.4903,24.3895C 41.4903,25.1942 41.6529,25.987 41.9779,26.7679L 34.0577,34.6821C 33.3918,34.3372 32.6991,34.0776 31.9796,33.9032C 31.2601,33.7288 30.5298,33.6415 29.7885,33.6415C 28.623,33.6415 27.4953,33.8526 26.4052,34.2748C 25.315,34.697 24.3419,35.3342 23.4856,36.1865L 30.2344,42.9174L 25.9027,47.9032L 22.6532,51.8425L 20.5988,54.5836C 20.1212,55.2892 19.8823,55.753 19.8823,55.975L 19.8645,56.0701L 19.9002,56.088L 19.9002,56.1474L 19.9358,56.1058L 20.0131,56.1236C 20.2351,56.1236 20.6989,55.8888 21.4045,55.419L 24.1457,53.3765L 28.0849,50.1151L 33.0945,45.7775L 39.8016,52.5025C 40.6579,51.6462 41.2961,50.6731 41.7163,49.5829C 42.1365,48.4928 42.3466,47.367 42.3466,46.2056C 42.3466,45.4603 42.2603,44.729 42.0879,44.0115C 41.9155,43.294 41.6548,42.6003 41.3069,41.9304L 49.2202,34.0161C 50.0011,34.3372 50.7939,34.4978 51.5986,34.4978C 52.4192,34.4978 53.2189,34.3362 53.9979,34.0132C 54.7768,33.6901 55.4894,33.2015 56.1355,32.5475 Z "/>

<ContentPresenter VerticalAlignment="Center" Margin="10,0,0,0" />
</StackPanel>

<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter TargetName="MyPin" Property="Data" Value="F1 M 32.3691,30.2225L 33.2253,29.3901L 15.361,11.5258C 13.9814,12.7067 12.6951,13.9936 11.5148,15.3738L 26.6252,30.4842C 27.743,30.1631 28.8767,30.0025 30.0263,30.0025C 30.8191,30.0025 31.6,30.0759 32.3691,30.2225 Z M 45.5039,49.3629L 60.6292,64.4826C 62.0123,63.2996 63.3017,62.0101 64.4846,60.6268L 46.6218,42.7866L 45.7834,43.619L 45.9439,44.7726L 45.9915,45.9261L 45.8785,47.6713L 45.5039,49.3629 Z M 56.1355,32.5475L 43.4466,19.8526C 42.7886,20.4987 42.298,21.2123 41.9749,21.9932C 41.6519,22.7741 41.4903,23.5729 41.4903,24.3895C 41.4903,25.1942 41.6529,25.987 41.9779,26.7679L 34.0577,34.6821C 33.3918,34.3372 32.6991,34.0776 31.9796,33.9032C 31.2601,33.7288 30.5298,33.6415 29.7885,33.6415C 28.623,33.6415 27.4953,33.8526 26.4052,34.2748C 25.315,34.697 24.3419,35.3342 23.4856,36.1865L 30.2344,42.9174L 25.9027,47.9032L 22.6532,51.8425L 20.5988,54.5836C 20.1212,55.2892 19.8823,55.753 19.8823,55.975L 19.8645,56.0701L 19.9002,56.0879L 19.9002,56.1474L 19.9358,56.1058L 20.0131,56.1236C 20.2351,56.1236 20.6989,55.8888 21.4045,55.419L 24.1457,53.3765L 28.0849,50.1151L 33.0945,45.7775L 39.8016,52.5025C 40.6579,51.6462 41.2961,50.6731 41.7163,49.5829C 42.1365,48.4928 42.3466,47.367 42.3466,46.2056C 42.3466,45.4603 42.2603,44.729 42.0879,44.0115C 41.9155,43.294 41.6548,42.6003 41.306,41.9304L 49.2202,34.0161C 50.0011,34.3372 50.7939,34.4978 51.5986,34.4978C 52.4192,34.4978 53.219,34.3362 53.9979,34.0132C 54.7768,33.6901 55.4894,33.2015 56.1355,32.5475 Z " />
<Setter TargetName="MyPin" Property="Fill" Value="Gray" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

使用

<StackPanel Orientation="Vertical" HorizontalAlignment="Center">
<CheckBox Height="35"
Style="{StaticResource styleCustomCheckBox}"
Content="MySolution1" />

<CheckBox Height="35"
Style="{StaticResource styleCustomCheckBox}"
Content="MySolution2" />
</StackPanel>

输出

enter image description here

我们也可以将路径的存储在资源中,并像这样引用它们:

<Path x:Key="MyPath" Data="F1 M 38,19C 48.4934,19 57,27.5066 ... />

...

<Setter TargetName="MainPath" Property="Data"
Value="{Binding Source={StaticResource MyPath}, Path=Data}" />

编辑

为了指定任意图标,我创建了两个附加的依赖属性(字符串类型):

  • IsCheckedOnData

  • IsCheckedOffData

IsCheckedOnData 包含 DataIsChecked = "True"IsCheckedOffData 值由 IsChecked = “假”

现在你只需要确定图标的字符串并定义这样一个资源(例如)。

完整示例:

XAML

<Window x:Class="CustomCheckBoxHelp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:CustomCheckBoxHelp"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
WindowStartupLocation="CenterScreen"
Title="MainWindow" Height="350" Width="525">

<Window.Resources>
<sys:String x:Key="Up">
F1 M 37.8516,35.625L 34.6849,38.7917L 23.6016,50.2708L
23.6016,39.9792L 37.8516,24.9375L 52.1016,39.9792L 52.1016,
50.2708L 41.0182,38.7917L 37.8516,35.625 Z
</sys:String>

<sys:String x:Key="Down">
F1 M 37.8516,39.5833L 52.1016,24.9375L 52.1016,35.2292L
37.8516,50.2708L 23.6016,35.2292L 23.6016,24.9375L 37.8516,39.5833 Z
</sys:String>

<Style x:Key="styleCustomCheckBox" TargetType="{x:Type CheckBox}">
<Setter Property="FontFamily" Value="Verdana" />
<Setter Property="FontSize" Value="14" />

<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<StackPanel Orientation="Horizontal">
<Path x:Name="MyPin" Width="18" Height="18" Stretch="Fill" Fill="#FF000000"
Data="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:CustomCheckBoxClass.IsCheckedOnData)}" />
<ContentPresenter VerticalAlignment="Center" Margin="10,0,0,0" />
</StackPanel>

<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter TargetName="MyPin" Property="Data"
Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:CustomCheckBoxClass.IsCheckedOffData)}" />
<Setter TargetName="MyPin" Property="Fill" Value="Gray" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>

<Grid>
<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Background="Beige">
<CheckBox Height="35"
local:CustomCheckBoxClass.IsCheckedOnData="{StaticResource Up}"
local:CustomCheckBoxClass.IsCheckedOffData="{StaticResource Down}"
Style="{StaticResource styleCustomCheckBox}"
Content="MySolution1" />

<CheckBox Height="35"
local:CustomCheckBoxClass.IsCheckedOnData="{StaticResource Up}"
local:CustomCheckBoxClass.IsCheckedOffData="{StaticResource Down}"
Style="{StaticResource styleCustomCheckBox}"
Content="MySolution2" />
</StackPanel>
</Grid>
</Window>

代码隐藏

public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}

public class CustomCheckBoxClass : DependencyObject
{
#region IsCheckedOnDataProperty

public static readonly DependencyProperty IsCheckedOnDataProperty;

public static void SetIsCheckedOnData(DependencyObject DepObject, string value)
{
DepObject.SetValue(IsCheckedOnDataProperty, value);
}

public static string GetIsCheckedOnData(DependencyObject DepObject)
{
return (string)DepObject.GetValue(IsCheckedOnDataProperty);
}

#endregion

#region IsCheckedOffDataProperty

public static readonly DependencyProperty IsCheckedOffDataProperty;

public static void SetIsCheckedOffData(DependencyObject DepObject, string value)
{
DepObject.SetValue(IsCheckedOffDataProperty, value);
}

public static string GetIsCheckedOffData(DependencyObject DepObject)
{
return (string)DepObject.GetValue(IsCheckedOffDataProperty);
}

#endregion

static CustomCheckBoxClass()
{
PropertyMetadata MyPropertyMetadata = new PropertyMetadata(string.Empty);

IsCheckedOnDataProperty = DependencyProperty.RegisterAttached("IsCheckedOnData",
typeof(string),
typeof(CustomCheckBoxClass),
MyPropertyMetadata);

IsCheckedOffDataProperty = DependencyProperty.RegisterAttached("IsCheckedOffData",
typeof(string),
typeof(CustomCheckBoxClass),
MyPropertyMetadata);
}
}

注意: 在样式中我没有使用 TemplateBinding 因为 TemplateBinding 在模板之外或其 VisualTree 属性之外不起作用,所以您甚至不能在模板的触发器中使用 TemplateBinding。因此,我们必须使用结构 {RelativeSource TemplatedParent}Path 等于要检索其值的依赖属性。

关于c# - 在 WPF 中更改自定义复选框上的图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18537033/

25 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com