getValue method
Get the current value of a form attribute.
The getValue function is used to retrieve the current value of a specific
form attribute. It first checks if the attribute exists in the _attributes
map. If the attribute exists, it returns the current value from the _values
map. If the attribute is not found, the function returns null.
Parameters:
attribute: The identifier of the form attribute for which you want to retrieve the current value.
Implementation
dynamic getValue(String attribute) {
if (!_attributes.containsKey(attribute)) {
return null;
}
return _values[attribute];
}