Question

I have data coming into my Model, how do I setup to insert the data in a table?

    public string Name { get; set; }
    public string Address { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public string Zip { get; set; }

    public Info()
    {
        using (SqlConnection connect = new SqlConnection(connections))
        {
            string query = "Insert Into Personnel_Data (Name, StreetAddress, City, State, Zip, HomePhone, WorkPhone)" +
                "Values('" + Name + "','" + Address + "','" + City + "','" + State + "','" + Zip + "','" + ContactHPhone + "','" + ContactWPhone + "')";

            SqlCommand command = new SqlCommand(query, connect);
            connect.Open();
            command.ExecuteNonQuery();
        }
    }

The Name, Address, City, and so on is null when the query is being run. How do I set this up?

Answer 1

You need to initialize your properties in constructor before you use it:

public string Name { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
public string ContactHPhone { get;set; }
public string ContactWPhone { get;set; }

public Info(string name, string address, string city, string state, string zip, string contactHPhone, string contactWPhone)
{
    Name = name;
    Address = address;
    City = city;
    State = state;
    Zip = zip;
    ContactHPhone = contactHPhone;
    ContactWPhone = contactWPhone;
    using (SqlConnection connect = new SqlConnection(connections))
    {
        string query = "Insert Into Personnel_Data (Name, StreetAddress, City, State, Zip, HomePhone, WorkPhone)" +
            "Values('" + Name + "','" + Address + "','" + City + "','" + State + "','" + Zip + "','" + ContactHPhone + "','" + ContactWPhone + "')";

        SqlCommand command = new SqlCommand(query, connect);
        connect.Open();
        command.ExecuteNonQuery();
    }
}

Edited:

The better way is to use parameters in your SQL string:

using (SqlConnection connect = new SqlConnection(connections))
{
    string query = "Insert Into Personnel_Data (Name, StreetAddress, City, State, Zip, HomePhone, WorkPhone) Values(@name, @address, @city, @state, @zip, @contactHPhone, @contactWPhone)";

    SqlCommand command = new SqlCommand(query, connect);
    command.Parameters.AddWithValue("name", Name);
    command.Parameters.AddWithValue("address", Address);
    command.Parameters.AddWithValue("city", City);
    command.Parameters.AddWithValue("state", State);
    command.Parameters.AddWithValue("zip", Zip);
    command.Parameters.AddWithValue("contactHPhone", ContactHPhone);
    command.Parameters.AddWithValue("contactWPhone", ContactWPhone);
    connect.Open();
    command.ExecuteNonQuery();
}