[mikebeam]

Hello,
I'm new to Cocoa/Obj C, so I'm kind of stuck with the basics. What is the method i use to obtain the value of a text field to use in calculations, etc? Also, what are good references for future questions of this sort? Thanks!

[IamBob]

NSTextField inherits from NSControl. There's several methods you can use to get data from your textfield. intValue, doubleValue and floatValue is probably what you're interested in.

Assuming you have the Developer Tools...

HD/Developer/Documentation/Cocoa/Reference/ (ApplicationKit/)

..if not, you can find the same docs on Apple's page somewhere.

Originally posted by mikebeam:
Hello,
I'm new to Cocoa/Obj C, so I'm kind of stuck with the basics. What is the method i use to obtain the value of a text field to use in calculations, etc? Also, what are good references for future questions of this sort? Thanks!

I believe this would do the trick (but I don't have OSX handy at the moment:

NSString *myString = [myTextField stringValue];

Check out the Vermont Recipies Cookbook on Stepwise for great sample code and a tutorial.
http://www.stepwise.com/Articles/VermontRecipes/

Jim

[Gavin]

there are HTML docs way down deep in the frameworks folders

/System/Library/Frameworks/AppKit.framework/Versions/C/Resources/English.lproj/Documentation/Reference/ObjC_classic/Classes/NSTextField.html

and you can also look at the headers in project builder.

What I've found most helpful is searching on the name of an object at OmniGroup dev list archives: http://www.omnigroup.com/search-bin/...ch=NSTextField

tons of good stuff there

[mikebeam]

Sounds great! Thanks for the info!

[Dalgo]

It's easy to get a value from a text field. If inputField is a pointer to your text field (like you made an outlet in Interface Builder and connected it to the field and that's the name of the outlet) then if you want the number that is in the field, assuming that there is a number there and thingToStoreNumberTo is where you want to store the value from the field, just use:

thingToStoreNumberTo = [inputField floatValue];

If you want to programmatically put a number into the field that's pointed to by inputField then, someNumber being what you want to set it to, you can use:

[inputField setFloatValue:someNumber];

Okay? It gets messier if you start playing with text. Hope that helped.