data type mismatch when trying to insert into an Access database from C#

Question

I am trying to insert into an access database. all the fields worked except for the "passwordx" field in which I get data type mismatch in criteria expression.

string commandSql = "INSERT INTO Members ( lastName, firstName, id, dob, phone, areaCodeNo, adress, cityNo, zipCode, email, active,passwordx) VALUES ( @lastName, @firstName, @id, @dob, @phone, @areaCodeNo, @adress, @cityNo, @zipCode, @email, @active,@passwordx); ";
OleDbCommand command = new OleDbCommand(commandSql, connection);
command.Parameters.Add("@lastName", OleDbType.VarChar, 100).Value = mem.lastName;
command.Parameters.Add("@firstName", OleDbType.VarChar, 100).Value = mem.firstName;
command.Parameters.Add("@id", OleDbType.VarChar, 100).Value = mem.id;
command.Parameters.Add("@dob", OleDbType.VarChar, 100).Value = mem.dob;
command.Parameters.Add("@phone", OleDbType.VarChar, 100).Value = mem.phone;
command.Parameters.Add("@areaCodeNo", OleDbType.Integer, 100).Value = mem.areaCodeNo;
command.Parameters.Add("@adress", OleDbType.VarChar, 100).Value = mem.adress;
command.Parameters.Add("@cityNo", OleDbType.Integer, 100).Value = mem.cityNo;
command.Parameters.Add("@zipCode", OleDbType.VarChar, 100).Value = mem.zipCode;
command.Parameters.Add("@email", OleDbType.VarChar, 100).Value = mem.email;
command.Parameters.Add("@passwordx", OleDbType.VarChar, 100).Value = mem.password;
command.Parameters.Add("@active", OleDbType.Boolean, 100).Value = mem.active;

connection.Open();
affectedRows = command.ExecuteNonQuery();
connection.Close();

thanks for the help.

does it matter that you have =mem.password and not =mem.passwordx — Rob Anthony

Gustav Gustav · Accepted Answer · 2017-09-18T13:15:27

Shuffle the last two parameters to match the sequence of your SQL:

command.Parameters.Add("@active", OleDbType.Boolean, 100).Value = mem.active;
command.Parameters.Add("@passwordx", OleDbType.VarChar, 100).Value = mem.password;

And a Boolean doesn't have a length.

data type mismatch when trying to insert into an Access database from C#

1 Answers