Wpf在更改URI源时刷新图像 [英] Wpf refresh the image when the URI source is changed

问题描述

我希望在路径更改时更新图像

通过我的测试，当我调用SetStatus时路径改变时图像不会更新。



我尝试过：



plugin.cs

I want to update the image when the path is changed
With my test, The image is not updated when the path is changed when I call SetStatus.

What I have tried:

plugin.cs

public enum StatusType
{
    Start, Pause, Stop
}

public class Plugin
{
    private StatusType status_;
    private String imageStatusPath_;

    public Plugin()
    {
        SetStatus(StatusType.Stop);
    }

    public void SetStatus(StatusType status)
    {
        status_ = status;
        if (status == StatusType.Stop)
            imageStatusPath_ = "Resources/Stop_24.png";

        if (status == StatusType.Pause)
            imageStatusPath_ = "Resources/Pause_24.png";

        if (status == StatusType.Start)
            imageStatusPath_ = "Resources/Play_24.png";
    }

    public String ImageStatusPath
    {
        get { return imageStatusPath_; }
    }

Mainview.xaml

Mainview.xaml

<Image Width="24" Height="24" HorizontalAlignment="Left" VerticalAlignment="Top">
 <Image.Source>
  <BitmapImage UriSource="{Binding ImageStatusPath}"/>
 </Image.Source>
</Image>

推荐答案

您应该使用数据绑定，这是WPF的一部分



在您尝试使用图像之前先学习基本知识

WPF中的数据绑定C＃ - YouTube [ ^ ]



WPF数据绑定 - 第1部分 [ ^ ]

You should use databinding which is part of WPF

Learn the basic first before you try the image one
Data Binding in WPF C# - YouTube[^]

WPF Data Binding - Part 1[^]

这篇关于Wpf在更改URI源时刷新图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！