I have this textbox on an .aspx page, which when submitted it stores whatever typed in the textbox into a nvarchar column in MS SQL 2005.
It works fine, until you try putting chinese characters.
These characters are converted to question marks (?) in the database.
How do you store non-english characters from a <input type="text"> to database?
The main thing would be to ensure that every step of the pipeline supports international characters; i.e. - at what point do you first see "?" ? In the aspx code? Or only once it gets into the database table?
The web page should already be using an encoding such as UTF8, so that should be OK - but what data type are you using at the database? It would need to be nchar/nvarchar(n)/nvarchar(max) (or ntext on older versions of SQL Server).