Stock App - radio button link to text field

Hello all..

I am new to the Objective-C language but I have programmed in a couple other languages.

I thought I would start with a simple application to test the waters..

There is a stock profit calculator app and they link the radio button with a text field so that when the radio button is selected the corresponding text field is not editable and the value is calculated from the other two fields. I'd like to do something similar to this.

Here is a link of the app - http://www.sspi-software.com/stockcalc_macx.html

How can I achieve this? I've looked around in the docs but it seems I'm over looking something..

I greatly appreciate any input and thanks for your time,

Marc

 

Alright so I figured out how to determine which radio button is selected..

selectedRow.. You guys had mentioned to give the radio buttons Boolean values and I'm not sure how to do that.. As you can see I've set up a series of if-statements.. I'm sure there is a better way to do this.

My question now is how do I make a NSTextField not editable when clicking on it's corresponding radio button.

I went to Cmd-4 and tried to bind it but it keeps crashing.. I'm guessing because it needs a Boolean variable. How can I go about this?


- (IBAction)convertSharePriceid)sender {

int cellTag;

cellTag = [buyRadioGroup selectedRow];

NSLog(@"Selected cell is %d", cellTag);

if (cellTag == 0) { /* calculate share price */

float numShares = [dispNumShares floatValue];
float cash = [dispCashOutlay floatValue];
float calculatedSharePrice = [converter numberOfShares:numShares amountCash: cash];

[dispSharePrice setFloatValue:calculatedSharePrice];

} else if (cellTag == 1) { /* Calculate number of shares */

float sharePrice = [dispSharePrice floatValue];
float cash = [dispCashOutlay floatValue];
float calculatedNumShares = [converter sP:sharePrice amountCash:cash];

[dispNumShares setFloatValue:calculatedNumShares];

}
}


Thanks again for your help.

 

So I used this [dispSharePrice setEditableBOOL)flag];

to disable the TextField.. But I'm using an invisible button that has a key equiv. of the return key.

When I change radio buttons the text field is disable only after I hit the return key.

How can I have the text fields updated automatically (instead of having to go through an invisible button and link it to the return key) on a click or tab of a different text field.

Essentially I'd like the program to detect that the radio button is selected already at run time. i've tried isSelected in my action method.. but it only works when the radio button is clicked.