WPF - 代碼動態更換按鈕的背景圖片

1 相對路徑

將在項目exe路徑Resourc目錄下尋找圖片

ImageBrush brush1 = new ImageBrush();
string path = @"Resource/icon-提交.png";
BitmapImage img = new BitmapImage(new Uri(path, UriKind.Relative));
brush1.ImageSource = img;
Testbutton.Background = brush1;

2 絕對路徑方式

2.1 如果圖片沒有導入到項目中

ImageBrush brush1 = new ImageBrush();
string path = @"F:/Resource/icon-提交.png";
BitmapImage img = new BitmapImage(new Uri(path, UriKind.Absolute));
brush1.ImageSource = img;
Testbutton.Background = brush1;

2.2 如果圖片已經導入到項目中

使用@"pack://application:標誌爲當前項目

ImageBrush brush1 = new ImageBrush();
string path = @"pack://application:,,,/Resource/icon-提交.png";
BitmapImage img = new BitmapImage(new Uri(path, UriKind.Absolute));
brush1.ImageSource = img;
Testbutton.Background = brush1;

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