Question

I have The following code…

for (j=0; j<20; j++) {

    if (j<20) {



    txtField = [[UITextField alloc] initWithFrame:CGRectMake(110, txt_Pos_Y, 100, 15)];
    txtField.borderStyle = UITextBorderStyleRoundedRect;
    txtField.font = [UIFont systemFontOfSize:11];
    txtField.tag = j;
    txtField.placeholder = @"Enter Value";
    txtField.autocorrectionType = UITextAutocorrectionTypeNo;
    txtField.keyboardType = UIKeyboardTypeDefault;

    txtField.returnKeyType = UIReturnKeyDone;
    txtField.clearButtonMode = UITextFieldViewModeWhileEditing;
    txtField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;    
    txtField.delegate = self;
    [scrollView addSubview:txtField];
    [txtField release];      


    txt_Pos_Y  = txt_Pos_Y  + 20; 
    }

The code creates 20 textfields….All Textfields are editable when view will load.Now I want to give value.I want, on which textfield I click First, only that TextField will be editable and Rest will be NonEditable.

I gave the tag , txtField.tag = j;

now i am not able to figure out that which tag is pressed or clicked? And not able To make the TextField editable which i clicked First, and rest Non-Editable?

I tried this to check the condition in CalculateMethod() method that txtField.tag == 1 is clicked but this is not working.

-(void)CalculateMethod {
UITextField *txtFld = (UITextField*)[scrollView viewWithTag:1];


// I want if TextFeild "txtField.tag == 1"  is clicked then Enter this condition 
if(txtField.tag == 1){      
double a;
a = Var_sqFt * Var_sqMtr;
txtFld.text = [[NSString alloc] initWithFormat:@"%.4f",a];
} 


// I want if TextFeild "txtField.tag == 2"  is clicked then Enter this condition 
if(txtField.tag == 2){     // Here I want Only that 
double a;
a = Var_sqFt * Var_sqMtr;
txtFld.text = [[NSString alloc] initWithFormat:@"%.4f",a];
} 

}

So I have 2 questions

1. I want, on which textfield I click First, only that TextField will be editable and Rest will be NonEditable , how to do this?

2. Which TextField is clicked/Touch/Pressed , Like I tried in CalculateMethod() method?

Answer 1

To check which field started editing

You should look into the Delegate methods for your UITextFields. Simply set the delegate of all fields to self i.e. the controller creating the textFields. Then implement the UITextField delegate method

- (void)textFieldDidBeginEditing:(UITextField*)textField;

in the method check the tag of incoming parameter textField to perform your task.

To enable disable fields

Put all your fields in an NSMutableArray, iterate the array and only enable the field which matches the delegate parameter. Disable the rest.