public static int Main(string[] args)
{
/*
* // If the AMPL installation directory is not in the system search path:
* ampl.Environment env = new ampl.Environment(
* "full path to the AMPL installation directory");
* // Create an AMPL instance
* using (AMPL a = new AMPL(env)) {}
*/
// Create an AMPL instance
using (var ampl = new AMPL())
{
ampl.Eval("var x{1..3};");
ampl.Eval("maximize z: sum{i in 1..3} x[i];");
// *** Output redirection *** Enable output redirection
ampl.EnableOutputRouting();
// Assign handler: Method 1: using method
ampl.Output += HandleOutput;
ampl.Eval("display x;");
ampl.Eval("let {i in 1..3} x[i] := i;");
ampl.Eval("display x;");
// Unassign output handler
ampl.Output -= HandleOutput;
// print all outputs
foreach (var t in outputs)
{
Console.Write("{0} - Kind: {1} - Msg:\n{2}", t.Date,
t.Kind, t.Msg);
}
// Method 2: Using lambda expression
ampl.Output += (kind, message) => Console.Write("Got AMPL message:\n{0}\n", message);
// Test it
ampl.Eval("display x,x;");
// *** Error redirection *** Enable error and warnings redirection
ampl.EnableErrorAndWarningRouting();
// Register handlers
ampl.Error += HandleError;
ampl.Warning += HandleWarning;
// Normally throws exception, will just be printed on screen
ampl.Eval("var x;");
// Create an obvious infeasibility
ampl.Eval("c1: x[1]>=1; c2: x[1]<=0;");
// Solve the model, issuing a warning
ampl.Solve();
}
return(0);
}