如何使用C＃将datagridview更新到数据库？

Question

I have a datagridview bound to a datasouce, bound to a datatable. I want to create a button that when I click it, the database will be updated with the new parameters in the datagridview. I've read some stuff about TableAdapter but I cant really find some good examples and explanations.

So if someone can give some information about tableadapter, it will help me a lot. Also, if you think that you have a better solution for me regarding update the database, i'll be glad to know about that.

EDIT: ok so i'm trying to use the mysqlcommandbuilder. My code now looks like this:

                MySqlDataAdapter da = new MySqlDataAdapter();
            da.SelectCommand = new MySqlCommand("SELECT * from setups", sql_Class.myConnection);
            MySqlCommandBuilder cb = new MySqlCommandBuilder(da);
            cb.GetUpdateCommand();

            da.Update(dt);

so now my error is in the da.Update(dt) and it says: "input string was not in the correct format". I've created a loop that runs on all the parameters in the sql query and all the parameters values are null.

            for (int i = 0; i <= cb.GetUpdateCommand().Parameters.Count - 1; i++)
            {
                Console.WriteLine(cb.GetUpdateCommand().Parameters[i].ParameterName + " " + cb.GetUpdateCommand().Parameters[i].Value);
            }

I have values in the datatable, i've double checked it, but someone the parameters are null. Any ideas why?

Answer 1

Managed to update my database in some "old fashion" method.

I'm just running on every single row in the datagridview and updates it using executenonquery. I get all the parameters manually.

Example: int setup_id = Convert.ToInt16(stam.Cells["setup_id"].Value); string setup_name = stam.Cells["setup_name"].Value.ToString(); string mySqlQuery = "UPDATE setups SET setup_name='"+setup_name+"' WHERE setup_id="+setup_id;

MySqlCommand cm = new MySqlCommand(mySqlQuery, sql_Class.myConnection); cm.ExecuteNonQuery();