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GeneralRe: i'm a brane jeenyus Pin
honey the codewitch23-Mar-24 21:03
mvahoney the codewitch23-Mar-24 21:03 
GeneralRe: i'm a brane jeenyus Pin
Mircea Neacsu24-Mar-24 2:11
Mircea Neacsu24-Mar-24 2:11 
GeneralRe: i'm a brane jeenyus Pin
honey the codewitch24-Mar-24 4:09
mvahoney the codewitch24-Mar-24 4:09 
GeneralRe: i'm a brane jeenyus Pin
Graeme_Grant24-Mar-24 2:58
mvaGraeme_Grant24-Mar-24 2:58 
GeneralRe: i'm a brane jeenyus Pin
honey the codewitch24-Mar-24 4:08
mvahoney the codewitch24-Mar-24 4:08 
GeneralData base Table show list box and list box show my edit form Pin
Mahesh Disanayaka23-Mar-24 7:48
Mahesh Disanayaka23-Mar-24 7:48 
GeneralRe: Data base Table show list box and list box show my edit form Pin
PIEBALDconsult23-Mar-24 8:28
mvePIEBALDconsult23-Mar-24 8:28 
GeneralRe: Data base Table show list box and list box show my edit form Pin
OriginalGriff23-Mar-24 20:36
mveOriginalGriff23-Mar-24 20:36 
Aso PIEBALDconsult said, this should be asked in the proper place: Ask a Question[^]

But ... we can't solve it from that single line of code because it's not the source of your problem. Let me just explain what the error message means: "You have tried to use a variable, property, or a method return value but it contains null" - which means that there is no instance of a class in the variable.

It's a bit like a pocket: you have a pocket in your shirt, which you use to hold a pen. If you reach into the pocket and find there isn't a pen there, you can't sign your name on a piece of paper - and you will get very funny looks if you try! The empty pocket is giving you a null value (no pen here!) so you can't do anything that you would normally do once you retrieved your pen. Why is it empty? That's the question - it may be that you forgot to pick up your pen when you left the house this morning, or possibly you left the pen in the pocket of yesterday's shirt when you took it off last night.

We can't tell, because we weren't there, and even more importantly, we can't even see your shirt, much less what is in the pocket!

Back to computers, and you have done the same thing, somehow - and we can't see your code, much less run it and find out what contains null when it shouldn't.
But you can - and Visual Studio will help you here. Run your program in the debugger and when it fails, it will show you the line it found the problem on. You can then start looking at the various parts of it to see what value is null and start looking back through your code to find out why. So put a breakpoint at the beginning of the method containing the error line, and run your program from the start again. This time, the debugger will stop before the error, and let you examine what is going on by stepping through the code looking at your values.

But we can't do that - we don't have your code, we don't know how to use it if we did have it, we don't have your data. So try it - and see how much information you can find out! This is one of the most common problems we get asked, and it's also the one we are least equipped to answer, but you are most equipped to answer yourself.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
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GeneralI do not understand the Netflix "recommendation algorithm". Pin
OriginalGriff23-Mar-24 7:34
mveOriginalGriff23-Mar-24 7:34 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Pete O'Hanlon23-Mar-24 8:58
mvePete O'Hanlon23-Mar-24 8:58 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
OriginalGriff23-Mar-24 20:13
mveOriginalGriff23-Mar-24 20:13 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Richard Andrew x6423-Mar-24 13:34
professionalRichard Andrew x6423-Mar-24 13:34 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
OriginalGriff23-Mar-24 20:20
mveOriginalGriff23-Mar-24 20:20 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Shao Voon Wong23-Mar-24 15:36
mvaShao Voon Wong23-Mar-24 15:36 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Pete O'Hanlon23-Mar-24 20:20
mvePete O'Hanlon23-Mar-24 20:20 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Shao Voon Wong23-Mar-24 20:25
mvaShao Voon Wong23-Mar-24 20:25 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Nelek23-Mar-24 22:51
protectorNelek23-Mar-24 22:51 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Pete O'Hanlon24-Mar-24 0:42
mvePete O'Hanlon24-Mar-24 0:42 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
OriginalGriff23-Mar-24 20:26
mveOriginalGriff23-Mar-24 20:26 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Bassam Abdul-Baki24-Mar-24 3:27
professionalBassam Abdul-Baki24-Mar-24 3:27 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Sean Ewington24-Mar-24 3:37
staffSean Ewington24-Mar-24 3:37 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Richard Deeming24-Mar-24 22:03
mveRichard Deeming24-Mar-24 22:03 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
OriginalGriff24-Mar-24 22:28
mveOriginalGriff24-Mar-24 22:28 
GeneralRe: I do not understand the Netflix "recommendation algorithm". Pin
Rage24-Mar-24 23:14
professionalRage24-Mar-24 23:14 
GeneralThe times they are a changing... Pin
Mike Hankey23-Mar-24 7:26
mveMike Hankey23-Mar-24 7:26 

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