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Inserting record in to MySQL Database using C#

开发者 https://www.devze.com 2023-02-12 01:14 出处:网络
I am currently developing an application using C# WPF. I am trying to store data into a MySQL Database. Below is the code that I have.

I am currently developing an application using C# WPF. I am trying to store data into a MySQL Database. Below is the code that I have.

 MySqlCommand cmd = new MySqlCommand("", conn);

                cmd.CommandText = "INSERT INTO BUG_REPORTS (bug_softwareID, bug_firstName, bug_lastName, bug_email, bug_description, bug_ip_addr, bug_dateReported) "
                    + "VALUES (@softwareID, @firstName, @lastName, @email, @description, @ip_addr, @dateReported)";

                cmd.Parameters.Add("@softwareID");
                cmd.Parameters.Add("@firstName");
                cmd.Parameters.Add("@lastName");
                cmd.Parameters.Add("@email");
                cmd.Parameters.Add("@description");
                cmd.Parameters.Add("@ip_addr");
                cmd.Parameters.Add("@dateReported");

                cmd.Parameters["@softwareID"].Value = softwareID;
                cmd.Parameters["@firstName"].Value = getFirstName();
                cmd.Parameters["@lastName"].Value = getLastName();
                cmd.Parameters["@email"].Value = getEmail();
                cmd.Parameters["@description"].Value = getDescription();
                cmd.Parameters["@ip_addr"].Value = ip_addr;
                cmd.Parameters["@dateReported"].Value = date;

                cmd.ExecuteNonQuery();

Everytime I try to inser开发者_运维问答t a record it comes up with the error 'Only MySQLParameter objects may be stored. What am I doing wrong. I found article and everything appears to be OK.

Thanks for any help you can provide


In your paramters try:

cmd.Parameters.Add(new OdbcParameter("@softwareID", softwareID));

And so on and so forth with the rest of your parameters.

And in all honesty it might be just as simple just to build your sql inline and execute the command without parameters unless your not validating text and are concerned about injection attacks.


I'm not sure if it translates over directly, but when I want to INSERT or UPDATE a table with T-SQL I use .ExecuteScalar().


Have you tried it using this style. It is a lot more compact and might possibly solve your problem.

cmd.Parameters.Add("@softwareID",softwareID);
cmd.Parameters.Add("@firstName",getFirstName());
cmd.Parameters.Add("@lastName",getLastName());
cmd.Parameters.Add("@email",getEmail());
cmd.Parameters.Add("@description",getDescription());
cmd.Parameters.Add("@ip_addr",ip_addr);
cmd.Parameters.Add("@dateReported",date);
cmd.ExecuteNonQuery();


The parameter identifier with the MySql .NET connector is '?'.

So you must use the following code:

cmd.CommandText = "INSERT INTO BUG_REPORTS (bug_softwareID, bug_firstName, bug_lastName, bug_email, bug_description, bug_ip_addr, bug_dateReported) "
                        + "VALUES (?softwareID, ?firstName, ?lastName, ?email, ?description, ?ip_addr, ?dateReported)";

cmd.Parameters.Add("?softwareID");
cmd.Parameters.Add("?firstName");
cmd.Parameters.Add("?lastName");
cmd.Parameters.Add("?email");
cmd.Parameters.Add("?description");
cmd.Parameters.Add("?ip_addr");
cmd.Parameters.Add("?dateReported");

cmd.Parameters["?softwareID"].Value = softwareID;
cmd.Parameters["?firstName"].Value = getFirstName();
cmd.Parameters["?lastName"].Value = getLastName();
cmd.Parameters["?email"].Value = getEmail();
cmd.Parameters["?description"].Value = getDescription();
cmd.Parameters["?ip_addr"].Value = ip_addr;
cmd.Parameters["?dateReported"].Value = date;
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