The error System.Data.SqlClient.SqlException – Invalid column name ‘xyz’ occurs when SQL Server cannot find a column with the name xyz in the table or view specified in your query. This….
The System.Data.SqlClient.SqlException – Violation of PRIMARY KEY constraint is a runtime exception in C# that occurs when the application tries to insert or update a row in a SQL Server….
The System.Data.SqlClient.SqlException – Cannot find column ‘xyz’ is a runtime exception in C# that occurs when the application tries to access a column in a SQL Server database that does….
The System.Data.SqlClient.SqlException – Cannot insert the value NULL into column ‘xyz’ is a runtime exception in C# that occurs when the application tries to insert or update a row in….
The System.InvalidOperationException – The model backing the ‘xyz’ context has changed is a runtime exception in C# that occurs when the database schema does not match the Entity Framework model…..
