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Java의 System.currentTimeMillis() 와 동일한 효과를 내는 C# code public long CurrentTimeMillis() { DateTime Epoch = new DateTime(1970, 1, 1); return (long)(DateTime.UtcNow - Epoch).TotalMilliseconds; } C#에서는 기준점이 0001-01-01이지만 Java에서는 1970-01-01이다. 또한 C#은 local date를 사용하지만 Java는 UTC date를 사용한다. 따라서 기준일을 1970 년 1월 1일로 설정하고 시간도 UTC로 얻어와 계산하면 된다. [출처] Java System.currentTimeMillis() equivalent

Cause A public or protected type contains a public or protected method that uses the VarArgs calling convention. Rule Description The VarArgs calling convention is used with certain method definitions that take a variable number of parameters. A method using the VarArgs calling convention is not Common Language Specification (CLS) compliant and might not be accessible across programming language..

Varargs The varargs, or variable arguments, feature allows a developer to declare that a method can take a variable number of parameters for a given argument. The vararg must be the last argument in the formal argument list. You might use varargs to allow adding one to many objects to a collection that you have defined by using a single add method call. Suppose you need a method that writes any ..

ExecuteScalar를 이용하면 SqlDataReader를 이용하지 않고도 Row Count를 얻을 수 있다. 일반적인 사용 방법은 int rowCount = SELECT Count(column_name) FROM table_name int rcds=0; sqlcmd.CommandText="Select count(*) from my_table where recdid='Active'"; rcds = sqlcmd.ExecuteScalar(); if(rcds>0) { sqlcmd.CommandText="Select Info1 from my_table where recdid='Active'"; myrdr = sqlcmd.ExecuteDataReader(); while(myrdr.Read()) { //Read..