C# MS Access Database Tutorial 2 # Create Login Form with Microsoft Access Database

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[bruno-vtbe]

great video and excellent explanation! 7 years later and it is still useful, thanks for your work, your videos really helped me!

[haseebahmed]

Aoa brother
Programming Knowledge is my favorite channel.Your videos are very helpful for me, you demonstrate every thing in a simplest way.Thanks a lot

[RollinShultz]

thanks for these tutorials! Optionally when moving the OleDB object assignment up below the class declaration you can place the connection string in the parentheses of the ending object like this: private OleDbConnection connection = new Source=Path;Persist Security Info=False;"); and you don't need the separate .connectionString function call under initialize component.

[vladimirblum]

Very clear and useful lesson. Thank you very much. Go ahead!

[moscovita]

You are really awesome. Thank you once again for the video.

[ralphresma]

Good explanation for c# newbie. thumbs up for you bro! But still, there's an error at incorrect statement where you need an else if instead of just else. :)

[jerhummemarcelo]

Hi @ProgrammingKnowledge, how you doing? very good video, I just have a question regarding the oledbconnection class why do we have to separate the instance of oledbconnection classs from the connection string. Apparently, the oledbconnection class was declared inside the partial class, and the connection string was put inside the constructor of the partial class thank you hope you can give me a little explanation.

[thenameisdoe]

Thanks a lot, your videos are very helpful but i have a few questions. when querying the database, you queried the username and password columns at the same time. is there a way there a way they can be queried separately e.g in a case where a user enters a wrong username and it prompts the user that a wrong username has been entered. i tried splitting the username and password query, it gave me an error message, and many other videos online also query the username and password column together. i'll be grateful if you can help me out with this. thanks

[teronkee]

@ProgrammingKnowledge Like a register screen, If it has duplicate then it wont let the user insert it

[jacobpayne]

That second 'if' should be 'else if', otherwise you'll get both the correct and not correct messagebox

[duncanryckaert]

You made a mistake by adding the second if. This can never work. The program will say that the username and password is correct but just after this messagebox you get another messagebox who says that the username and password is not correct. You can fix this by changing the second if into an else if ;-)

[WIKIKALI]

Thank bro It really helped me a lot.
رد

[phyusinlinlatt]

The code doesn't work well in my case. It connects to access "connection successful", but when I entered username and password, then pressed login button, nothing comes out as an output. Can someone please help me?

[ZynTrr]

I have an error. It says:
InvalidOperationException was unhandled.
ExecuteReader: Connection property has not been initialized.

please help to fix this. pretty T_T

[ashwinibhujbal]

Please try to provide previous video and next video link in description. Good work.

[teronkee]

@ProgrammingKnowledge
Can you create a register screen with same format Duplicate Username ? It's pointless to have duplicate if u log in right?

[SoulDevil]

What if do you have more than 1 table in you database? How the query will be?

[VelvetSapphire]

I have an error in db connection. I'm using MS Access 2019 but I saved in 2003 old version for compatibility.

[helenaviljoen]

i havent tried the code myself, but by looking at the query it feels like any username will be able to use any password, shouldnt he reference the ID to confirm that the password is the right one ??

[zenabmuhammed]

thanQ
but it shows OleDbException was unhanded
what should i do?