help to create a validation user with c# and mysql

Hi everyone, need sme help to create a validation to user, where will return a answer negative

or let enter in the FormPrincipal filling the camps txt user txt level

and txt status with the dates of the table user in the bdte.

Its the followin suppose:

::: Conection MySQL :localhost:bdados:root:123456

::: bdate : table user : id / name / passw / email / status / level

::: Namespace Csharp

::: FormLogin

txt name / txt passw / txt login / button forget passw /button login

::: FormPrincipal

txt status / txt user / txt level /txt status