## VariableCollection::idx_set(const System::String\&, const System::String\&) method Gets or a sets a document variable by the case-insensitive name. **null** values are not allowed as a right han......ieldType::FieldDocVariable, true)); field->set_VariableName(u"Home...ASSERT_TRUE(variables->Contains(u"City")); ASSERT_TRUE(variab...