OrElse and AndAlso operators in VB .NET

OrElse and AndAlso are two new logical operators in VB .NET and they have some properties that can enhance your codes in two general categories:1. Avoid executing part of a logical expression.2. Optimize code by not executing any more of a compound expression than required.OrElse and AndAlso are quite similar with the And and Or except that VB .NET supports short-circuiting with the OrElse and AndAlso operators. This means that the expressions will only be executed when necessary. Anyway, the And and Or are still present in...

How to get Windows’ Serial Number and Windows Logon User Name in .NET

By using the namespace System.Management, we can easily retrieve the serial number of your Windows OS and windows logon user name.First of all, you need to add a reference of System.Management into your application. To add a reference into your .NET application, you can right-click on References in the solution explorer and select Add Reference.From the Add References dialog box, select System.Management and click OK.The...

Export Data to Excel (Not HTML Table) in C# .NET

In my previous post - Export Data to Excel (Not HTML Tables), I had shown you how to export to excel in VB .NET. In this post, I will use a C# .NET example instead.Of cause first thing that you need to do is to add Excel.dll (Microsoft excel 11.0 Object Library) into your .NET project references. Here is the codes:private void ExportToExcelFile(System.Data.DataTable dt){   Excel.Application xlsApp = new Excel.ApplicationClass();   Excel.Workbook xlsWorkbook;   Excel.Worksheet xlsWorksheet;   string...