如何解决这一问题?
其他资源是检查结果是否包含任何记录的任何其他方法?
b 以前我使用Sqlserver 合同3.5
You say "except rdr.Read() method" but that feels like the most natural approach to me.
2. 又注意到
catch (Exception e)
{
throw;
}
一般来说,这是一种应当消除的污染。 我也质疑设计和执行:
getSites)bool return value but always returned true, and an out parameter for the real resultsrdr method way before it s needed, for no obvious reason. (It s not going to be useful outside the using statement anyway, so why not declare it there?)What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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