Im creating a program that is going to be similar to an HMI.
It will update the tags from a web service.
I have a XML file with all available tags I can receive from the web service.
Every tag has its unique ID, Name, Description, Type of variable and so on.
It can look something like this:
ID: 1
Name: Machine.State.RPM.Actual
Description: Actual Machine RPM
Type: float
Unit: RPM
I do not want to add all tags manually so I figure doing it by using XMLSAX.
When all tags are added Im thinking using the ID number to find the tag of interest,
or
What will be the best practice to declare all tags into variable structure?
The Tag().Actual can be string, integer, float, unsigned or DateTime.
When I receive an update from the web service it comes as String and also with information of variable type.
Or should I always declare the Tags().ActualValue as string and deal with it when it needs to be converted?
Also when I receive an update it wont say the ID number of the tag, just the name of it. So to find where I should update inside the Tags() variable I need to make a loop that looks for a match at Tags(index).Name
I hope my explanation make sense or I will try it in an other way.
/J
It will update the tags from a web service.
I have a XML file with all available tags I can receive from the web service.
Every tag has its unique ID, Name, Description, Type of variable and so on.
It can look something like this:
ID: 1
Name: Machine.State.RPM.Actual
Description: Actual Machine RPM
Type: float
Unit: RPM
I do not want to add all tags manually so I figure doing it by using XMLSAX.
When all tags are added Im thinking using the ID number to find the tag of interest,
B4X:
Label1.Text = Tags(ID).ActualValue
B4X:
Label1.Text = Tags(Label1.Tag).ActualValue & Tags(Label1.Tag).UnitWhat will be the best practice to declare all tags into variable structure?
The Tag().Actual can be string, integer, float, unsigned or DateTime.
When I receive an update from the web service it comes as String and also with information of variable type.
Or should I always declare the Tags().ActualValue as string and deal with it when it needs to be converted?
Also when I receive an update it wont say the ID number of the tag, just the name of it. So to find where I should update inside the Tags() variable I need to make a loop that looks for a match at Tags(index).Name
I hope my explanation make sense or I will try it in an other way.
/J