i have a field for Emp Number.
this i need to check as if it consists of Blank then i have throw error message as it consists of Blank and
if the field has 0 then i need throw an error message as the field consists of zero value and
if the field consists of more than 8 charecters then i need to throw an error message as the field consists of more than 8 charecters.
theses are the three validations i need to do.
Please if possible provide code example,