Welcome to S.T.G!.This is ASP .NET code first problem solving channel .Here We will show you how to solve those type problems which is given below
System.Web.HttpException: DataBinding: 'V1.Models.DEPARTMENT' does not contain a property with the name 'id'.
'There is no ViewData item of type 'IEnumerable SelectListItem' that has the key 'Departmentid
DataBinding: 'V1.Models.DEPARTMENT' does not contain a property with the name 'Departmenntid
System.ArgumentException: 'Format of the initialization string does not conform to specification starting at index 60.'
System. Argument Exception: 'Format of the initialization string does not conform to specification starting at index 28.'
System.ArgumentNullException: 'Value cannot be null.Parameter name: entity'
The migration '20211120124848_test' has already been applied to the database. Revert it and try again. If the migration has been applied to other databases, consider reverting its