how to write this code?

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I need to write a code for a form I created called newmembers that takes string,int,string but i did not know how to write the class for it in the app_code

C#

public class newmember
 {
     public static string Register(string mname, int password, string email)
     {
         SqlConnection con = new SqlConnection(Database.ConnectionString);
         try







 }

maybe i should add that the function of the method is to take these values and add them to a table in the database called members.

Posted 23-Dec-12 8:23am

SQLmis

Updated 23-Dec-12 8:30am

v2

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Comments

Jibesh 23-Dec-12 14:26pm

This is very basic question. you need to learn how to write a class and its members to be a good programmer. Please put some effort to learn how to wrote class and functions by self. It's not that big deal and you can do it own your own.

SQLmis 23-Dec-12 14:54pm

ok is this code correct

protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(Database.ConnectionString);
try
{
con.Open();
SqlCommand cmd = new SqlCommand("select isnull(max(mid),0)+1 from members",con);
int mid=(int)cmd.ExecuteScalar();
cmd.CommandText="insert into members values(@mid,@name,@password,@email)";
cmd.Parameters.Add("@mid",SqlDbType.Int).Value = mid;
cmd.Parameters.Add("@mname",SqlDbType.VarChar,50).Value=mname.txt;
cmd.Parameters.Add("@password",SqlDbType.VarChar,10).Value=password.txt;
cmd.Parameters.Add("@email",SqlDbType.VarChar,40).Value=email.txt;
cmd.ExecuteNonQuery();
HttpContext.Current.Trace.Write("Member has been added successfully with ID = " +mid);
}
catch (Exception ex)
{
HttpContext.Current.Trace.Write("error" +ex.Message);
}
finally
{
con.Close();
}
}

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OriginalGriff · Accepted Answer · 2012-12-23T08:39:00

Solution 1

Try:

C#

using (SqlConnection con = new SqlConnection(Database.ConnectionString))
    {
    con.Open();
    using (SqlCommand com = new SqlCommand("INSERT INTO myTable (myColumn1, myColumn2, myColumn3) VALUES (@NM, @PW, @EM)", con))
        {
        com.Parameters.AddWithValue("@NM", mname);
        com.Parameters.AddWithValue("@PW", password);
        com.Parameters.AddWithValue("@EM", email);
        com.ExecuteNonQuery();
        }
    }

Obviously, you need to your the appropriate table and column names! :laugh:

Posted 23-Dec-12 8:39am

OriginalGriff

Comments

SQLmis 23-Dec-12 14:59pm

protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(Database.ConnectionString);
try
{
con.Open();
SqlCommand cmd = new SqlCommand("select isnull(max(mid),0)+1 from members",con);
int mid=(int)cmd.ExecuteScalar();
cmd.CommandText="insert into members values(@mid,@name,@password,@email)";
cmd.Parameters.Add("@mid",SqlDbType.Int).Value = mid;
cmd.Parameters.Add("@mname",SqlDbType.VarChar,50).Value=mname.txt;
cmd.Parameters.Add("@password",SqlDbType.VarChar,10).Value=password.txt;
cmd.Parameters.Add("@email",SqlDbType.VarChar,40).Value=email.txt;
cmd.ExecuteNonQuery();
HttpContext.Current.Trace.Write("Member has been added successfully with ID = " +mid);
}
catch (Exception ex)
{
HttpContext.Current.Trace.Write("error" +ex.Message);
}
finally
{
con.Close();
}
}

SQLmis 23-Dec-12 15:02pm

if yes why I keep getting red underline on mname.txt , password.txt, and email.txt

the error is (Error 10 The name 'mname' does not exist in the current context C:...\WebSite2\
)

SQLmis 23-Dec-12 15:32pm

I fix all of it the only thing left is that error :

Error 3 'Button2_Click' is not a member of 'ASP.newmember_aspx'. C:\Users\dr.apple\Documents\Visual Studio 2010\WebSites\WebSite2\newmember.aspx 45

although i have the method in inside the class and that is the code:

protected void Button2_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(Database.ConnectionString);
try
{
con.Open();
SqlCommand cmd = new SqlCommand("select isnull(max(mid),0)+1 from members", con);
int mid = (int)cmd.ExecuteScalar();
SqlCommand cmd1 = new SqlCommand("select isnotnull from members", con);
string mname = (string)cmd1.ExecuteScalar();
SqlCommand cmd3 = new SqlCommand("select isnotnull from members", con);
Char password = (char)cmd3.ExecuteScalar();
SqlCommand cmd4 = new SqlCommand("select isnotnull from members", con);
string email = (string)cmd4.ExecuteScalar();
cmd.CommandText = "insert into members values(@mid,@name,@password,@email)";
cmd.Parameters.Add("@mid", SqlDbType.Int).Value = mid;
cmd.Parameters.Add("@mname", SqlDbType.VarChar, 50).Value = mname;
cmd.Parameters.Add("@password", SqlDbType.VarChar, 10).Value = password;
cmd.Parameters.Add("@email", SqlDbType.VarChar, 40).Value = email;
cmd.ExecuteNonQuery();
HttpContext.Current.Trace.Write("Member has been added successfully with ID = " + mid);
}
catch (Exception ex)
{
HttpContext.Current.Trace.Write("error" + ex.Message);
}
finally
{
con.Close();
}
}

}