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很多地方莫名其妙地出错,可能是因为自己用习惯了SQLCOMMAND,改成用Access数据库就不习惯了,哎 废话少说,给大家说个最气愤的 OleDbCommand Cmmand = new OleDbCommand(); Cmmand.CommandText = "UPDATE " + TABLENAME + " SET [number]=@number," +"SaleState=@SaleState," +"SaleTime=@SaleTime," +"MachineC... [阅读全文] [PDF]
我们剖析一下这个特性的实现原理: 首先,还是看一个例子: 1 class Program 2 { 3 static void Main(string[] args) 4 { 5 var foo1 = new Foo(); 6 foo1.Do1(1,"fan"); 7 foo1.Do2(2,"onlyvc"); 8 foo1.Do2(3); 9 foo1.Do2(b : "only"); 10 foo1.Do2(b: "only", a: 2); 11 12 Console.ReadL... [阅读全文] [PDF]
这个特性比较简单,依旧长话多说,只说重点。下面这个demo我们经常使用重载函数来处理问题的场景: Code 1 public void Process(int p1, float p2, string p3) 2 { 3 //todo 4 } 5 6 public void Process(int p1, float p2) 7 { 8 Process(p1, p2, "fanweixiao"); 9 } 10 11 public void Process(int p1) 12 { 13 Process(p1, 0f); 14 } 在C... [阅读全文] [PDF]
This small articleshowshow you cancreate and passparameters value at runtime in a Crystal Report from yourUI.In my application, I am using a ReportViewer control in Visual Studio 2005 to view the report. Note: To learn more about how to generate reports in a ReportViewer, read this free book: Free... [阅读全文] [PDF]
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