dropdownlist command (also called combobox) creates or modifies dropdown lists on SAP screens. Below example explains on how to restrict dropdownlist values and execute a function automatically when a value is selected from the dropdownlist
LiquidUI Code:
// Sample User Interface in MM01 transaction
set("V[mylist]", "=--- Select Industry Type ---;B=Beverage;C=Chemical Industry;M=Mechanical Engineering;");
dropdownlist([10, 0], "mylist", {"refer":"F[Industry sector]", "width":30,"process":test_dropdown});
// Sample Function
function test_dropdown(){
set("F[Industry sector]", z_ordertypeselected);
set("F[Material Type]", "FERT");
enter();
}
See attached document for details