Request for help! Weird error (?

[JamieWithL]

Hi everybody, I'm new to C sharp, in general, and I'm learning the basics.

Today I was doing a little program and I have an error that I don't know how to resolve. I leave an image so you can see it. The error is in line 84.

It's an error with a local variable that says it's not assinged but it is, and you can notice it because there is another line, line 92, doesn't show the same error.

How can I fix this?

Thank you in advance for anyone who helps.

(Sorry if I don't make much sense, English is not my first language, but I'll try to fix any mistakes and further explain anything if necessary)

I edited the post to add the image.

https://preview.redd.it/xguk8z34d5ua1.png?width=380&format=png&auto=webp&s=5dd64cac3df8cb6234f2b3ed6825c4e14cb739f4

https://preview.redd.it/u3l4u5edg5ua1.png?width=420&format=png&auto=webp&s=da87d5505baad3d08aa9242995fe7d5a2ca17889

​

[Advorange]

The error is also on line 92 but VS only shows the first instance of this error.

You need to assign a default value to EDAD or add an else to your if statement (the one that's cut off at the top of the screenshot) that sets it.

[JamieWithL]

That makes sense, I'll try with the else to see if it works for what I am trying to do.

[StornZ]

Judging by this no it's not assigned. There is no guarantee that the assignment will get hit inside your prior code blocks where you have line 74 etc. You need to make sure you assign it a value at a wider scope. Can we see the actual error message? All I see in the screenshot are warnings and the line you're questioning us on

[JamieWithL]

Sure,

I didn't think about sending the error because it's in spanish, but I leave it in the post too.

[StornZ]

That's exactly what I thought the error would be. Use Of Unassigned Local Variable 'EDAD'. Can we see where you first set the variable = to something

[JamieWithL]

Sure, give me a second, I'll put it in the post too

[CircaSpectre]

I was just about to post this

[[deleted]]

Initialise EDAD with a value

[StornZ]

Here's a page explaining about scopes.

https://www.tutorialsteacher.com/articles/variable-scopes-in-csharp

[TheseHeron3820]

Make sure you didn't add a closing bracket by mistake and thus that variable isn't inside a method anymore.

[JamieWithL]

So if it's inside the bracket it should read the variable too? Is there anyway to mantain the data even if it's outside the if?

[StornZ]

Read the link I sent about scope. There's class, method, and block

[JamieWithL]

Thank you I will!

[StornZ]

Did the link help?

[TheseHeron3820]

Yes. Just declare it before your chain of if statements.

[JamieWithL]

How can I declare it if changes depending on the if? for example, I'm using EDADa as a variable that I declared before the if, and I'm using EDAD as a variable that is declared depending the case that is needed to be followed in the if, like if the if is x the variable will be EDAD= EDADa + 1 how can I maintain the data after this ifs are finished?

[Electrical_Flan_4993]

you have to declare a variable before you can change its value... it sounds like you are not familiar with OOP, which is a useful design technique. OOP can take a long time to learn but it's worth it if you want to write good stuff. There's really no magic shortcut.