C# Parameterized Query MySQL with `in` clause

Question

I am in the process of converting several queries which were hard-coded into the application and built on the fly to parameterized queries. I\'m having trouble with one part

Answer 1

You could build up the parametrised query "on the fly" based on the (presumably) variable number of parameters, and iterate over that to pass them in.

So, something like:

List foo; // assuming you have a List of items, in reality, it may be a List or a List with an id property, etc.

StringBuilder query = new StringBuilder( "UPDATE TABLE_1 SET STATUS = ? WHERE ID IN ( ?")
for( int i = 1; i++; i < foo.Count )
{   // Bit naive 
    query.Append( ", ?" );
}

query.Append( " );" );

MySqlCommand m = new MySqlCommand(query.ToString());
for( int i = 1; i++; i < foo.Count )
{
    m.Parameters.Add(new MySqlParameter(...));
}