hey im making a maths tutor/practise program for my major work, (vb 2005 express edition) and i'd like to let the user 'log in' pretty much just to be able keep a record of and view their results, i think im ok writing to the database, but would anyone know how to set up an initial 'log in' type screen just so they can access. if anyone could show me how they do this or send me a copy of a program that does a similar thing i'd be rlly grateful
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- Thread starter cooldods
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This is your assignment, so i'm not going to write any code for you, but give you some giveaway tips.
Unless you're going to be storing a lot inside the DB, there's probably not much of a use to have a DB just to store it there, and besides it's just a mini project, so keep it simple.
In the end you would probably select Access as the backend, otherwise you might choose MySQL or SQL Server, which you may require the user to install the desktop engine.
Anyways, i suggest that you simply use an XML document to store a collection of user profiles.
What you would do is have a class called User, and have the necessary properties like Name, Password, etc...
Make sure you mark this class as Serializable by applying the Serializable attribute, i.e. <Seriablizable()> Public Class User..... End Class
And all you do is store a List<User> of User objects.
To load and save the user objects you would simply use the XmlSerializer class and invoke the Serialize and Deserialize methods to save and load respectively.
Basically everytime your Sub Main or your main forms InitializeComponent is called you can stick the code which Deserializes the XML document and get your List of Users back, and have that as a global Object.
Then you can instantiate and display the Login form, and implement the Login Button, which just does a look up of the username in the List of User objects, and checks the password.
It's not rocket science, pretty simple.
Hope that helps.
Unless you're going to be storing a lot inside the DB, there's probably not much of a use to have a DB just to store it there, and besides it's just a mini project, so keep it simple.
In the end you would probably select Access as the backend, otherwise you might choose MySQL or SQL Server, which you may require the user to install the desktop engine.
Anyways, i suggest that you simply use an XML document to store a collection of user profiles.
What you would do is have a class called User, and have the necessary properties like Name, Password, etc...
Make sure you mark this class as Serializable by applying the Serializable attribute, i.e. <Seriablizable()> Public Class User..... End Class
And all you do is store a List<User> of User objects.
To load and save the user objects you would simply use the XmlSerializer class and invoke the Serialize and Deserialize methods to save and load respectively.
Basically everytime your Sub Main or your main forms InitializeComponent is called you can stick the code which Deserializes the XML document and get your List of Users back, and have that as a global Object.
Then you can instantiate and display the Login form, and implement the Login Button, which just does a look up of the username in the List of User objects, and checks the password.
It's not rocket science, pretty simple.
Hope that helps.
Last edited:
ianc
physics is phun!
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my only word of warning is that last year we had no end of trouble using databases with visual basic because of the security policies on all the computers......so what works at home may not necessarily work at school
Lol, Im doing a Maths Game For SDD and mines quite Complicated..
I used a Text file to place the usernames in..
since its your assignment, I can't Really give you that much info, but theres one thing I can..
If you Are using a Txt file then you must:
Create a certain area where the user inserts username,
then the program must open the txt file,
Search for the username,
If the username isnt in the file then add it in..
Hope this Helps
-=ArmenianUnit=-
I used a Text file to place the usernames in..
since its your assignment, I can't Really give you that much info, but theres one thing I can..
If you Are using a Txt file then you must:
Create a certain area where the user inserts username,
then the program must open the txt file,
Search for the username,
If the username isnt in the file then add it in..
Hope this Helps
-=ArmenianUnit=-
