Night Walker questions

• Merging data frame with overlapping columns
• Distinct in Linq query
• Raising a function by timer
• New line in VB.NET
• back up and restore mysql database c#
• Assign Series to DataFrame by multiindex
• keeping one connection to DB or opening closing per need
• Winform freezes when I try to close it
• Deployment kit suggestions [closed]
• Command line compiling VB.NET project via Visual Studio?

Night Walker answers