将保存到图像代码中用于确保调用“Dispose”并解除资源锁定。
using (var document = PdfiumViewer.PdfDocument.Load(pdfoutputFilePath + TafCode + ".pdf"))
{
var image = document.Render(0, 842, 595, true);
image.Save(imageoutputFilePath + TafCode + ".png", ImageFormat.Png);
}
你可以告诉大家通过看PdfDocument类的代码定义“处置”的方法来释放相应的文件。
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
/// <param name="disposing">Whether this method is called from Dispose.</param>
protected void Dispose(bool disposing)
{
if (!_disposed && disposing)
{
if (_file != null)
{
_file.Dispose();
_file = null;
}
_disposed = true;
}
}