捕获OutOfMemory异常

本文关键字：异常 OutOfMemory 捕获 | 更新日期: 2023-09-27 18:17:09

我正在使用RenderTargetBitmap来渲染导致内存不足异常的图像。是否有一种方法来捕获异常，以便我可以安全退出，并告诉用户，这是不可能渲染图像…而不是使客户端崩溃?

   (MemoryStream imageStream = doSomething())
public Stream doSomething()
{  return renderTarget.Render(); // This is causing the exception  }

捕获OutOfMemory异常

这是正确的做法:

int memEstimateInMB = 16;
try
{
    using(var fp = new MemoryFailPoint(memEstimateInMB))
    {
        return renderTarget.Render();
    }
}
catch(InsufficientMemoryException e) // note that this is a different exception than OOM
{
    // your allocation would have failed (probably)
    // handle accordingy
}