What'sUP questions

• Display Error message in Validationsummary with Ajax
• Definition of Reference table
• Turn value into singular row
• Convert code from VB into C#
• Close a WPF window separately
• Why use Clone()?
• Remove the ability to resize
• pictures validation in MVC
• Remove the Close button in the program's title bar
• Can't refresh datagridview with bindingsource

What'sUP answers