Nate Pet questions

• e.preventDefault prevent click
• c# MVC hide header buttons conditionally
• ClosedXML read from excel file
• How RedirectToAction which returna partial view can return a full view?
• LinqPad - write SQL and it converts to Linq Lambda
• c# mvc return JSON or File from AJAX call
• linq join 1 to many get first record
• Create list with 2 columns using foreach
• ASP.NET VB - Conversion from type 'DBNull' to type 'String' is not valid
• MVC @Html.DropDownList Getting Error with SelectList in ViewBag

Nate Pet answers