如何过滤掉捕获块

本文关键字：过滤 何过滤 | 更新日期: 2023-09-27 17:54:48

我需要return false防止日志记录，如果SP.ServerException已经抛出。但在所有其他情况下，我也需要做日志和return false。

try
{
    folder = GetFolderByRelativeUrl(folderRelativePath);
}
catch (SP.ServerException serverEx)
{
    //if file is not found the logging is not need
    if (serverEx?.Message == "File not found")
    {
        return false;
    }
    //how i can go from here
}
catch (Exception ex)
{
    //to there
    Log(ex.Message);
    return false;
}

我知道答案是

try
{
    folder = GetFolderByRelativeUrl(folderRelativePath);
}
catch (Exception ex)
{
    //if file is not found the logging is not need
    if (!(ex is SP.ServerException && ex?.Message == "File not found"))
    {
        Log(ex.Message);
    }
    return false;
}

如何过滤掉捕获块

尝试when关键字:

try
{
    folder = GetFolderByRelativeUrl(folderRelativePath);
}
catch (SP.ServerException serverEx) when (serverEx.Message == "File not found")
{
   return false;
}
catch (Exception ex)
{
    //to there
    Log(ex.Message);
    return false;
}

在c# 6中，你可以过滤异常:

catch (SP.ServerException ex ) when (ex.Message == "File not found")
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