问题描述
我的C#代码使用COM对象。有时,COM对象方法将返回 E_OUTOFMEMORY
,但它会被转换为 System.OutOfMemoryException
而不是 System.Runtime.InteropServices.COMException
与适当的 ErrorCode
。这对我来说是一个问题,因为它使我的错误处理变得复杂 - 我希望将COM对象方法中引发的所有错误指示都抛出为 System.Runtime.InteropServices.COMException
可以始终有 System.Runtime.InteropServices.COMException
而不是 System.OutOfMemoryException
当COM对象方法返回 E_OUTOFMEMORY
?
它可能是一个cop-out,但为什么不包装任何代码在Try / catch中抛出 System.OutOfMemoryException
重新抛出一个 System.Runtime.InteropServices.COMException
?
以下行:
try
{
// COM代码这里
}
catch(System.OutOfMemoryException ex )
{
throw new System.Runtime.InteropServices.COMException(E_OUTOFMEMORY,前);
}
My C# code consumes a COM object. Sometimes that COM object methods will return E_OUTOFMEMORY
but it will get translated into System.OutOfMemoryException
instead of System.Runtime.InteropServices.COMException
with appropriate ErrorCode
. This is a problem for me because it complicates my error handling - I'd prefer to have all error indications that arise from COM object methods being thrown as System.Runtime.InteropServices.COMException
only.
Is it possible to always have System.Runtime.InteropServices.COMException
and not System.OutOfMemoryException
when a COM object method returns E_OUTOFMEMORY
?
It may be a bit of a cop-out, but why not wrap whatever code is throwing the System.OutOfMemoryException
in a Try/catch and re-throw a System.Runtime.InteropServices.COMException
?
Something along the lines of:
try
{
// COM Code here
}
catch (System.OutOfMemoryException ex)
{
throw new System.Runtime.InteropServices.COMException("E_OUTOFMEMORY", ex);
}
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