how to POST UIPickerview Value to JSON url - ios

Question

I have two UITextFields(cityNames,collageNames).I get data for JSON url.I get and Placed data to UIPickerview based on UITextFields. when select cityName that city name placed into UITextFields but now I need that particular index value post to JSON URL and same as collage name
. I know about String value Post to JSON url. But I don't know about How to post UIPickerview Index Value to JSON url.
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
NSLog(#"select row is %d",row);
if(pickerView.tag==1){
CityName.text = [secondArray objectAtIndex:row];
string1=
[NSString stringWithFormat:#"%d",[yourpicker selectedRowInComponent:0]];
NSLog(#"string ring %#",string1);
}
else if(pickerView.tag==2){
CollageName.text = [firstArray objectAtIndex:row];
string2=
[NSString stringWithFormat:#"%d",[yourpicker selectedRowInComponent:0]];
}
}
String1 and String2 is get IndexValue .But i don't how to pass that particular Stringvalue to JSON.I tired but When i Print String 1 and 2 using NSLog outSide of Did-select Method it's showing null Values.When i Print String values in Didselect method it's showing select Index value
NSString *post =[NSString stringWithFormat:#"?&citynames=%#&collageNames=%#",cityname.text,collagename.text];
or
NSString *post =[NSString stringWithFormat:#"?&citynames=%#&collageNames=%#",string1,string2];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://192.168.3.35:8090/SaveDollar/rest/users/add"]]];
NSLog(#"getData%#",request);
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-Type"];
[request setHTTPBody:postData];
NSLog(#"getData%#",request);
con3 = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if(con3)
{ webData3=[NSMutableData data];
NSLog(#"Connection successfull");
NSLog(#"GOOD Day My data %#",webData3);
}
else
{
NSLog(#"connection could not be made");
}
I tired like this (above code).i not getting.So Please give me any idea about How to post UIPickerView indexValue to JSON Url.
Thanks in Advanced .

Answer 1

You have two different pickerViews so no issue.
Get the actual values from two different arrays as:
NSString *collegeName=[collegeArray objectAtIndex:[self.dataPicker1 selectedRowInComponent:0]];
OR:
If you are able to see textField values, you can use them also as:
NSString *collegeName=collegeTextField.text;
One more way to get index i.e. from textField:
int index=[collegeNameArray indexOfObject:collegeName];
then you can pass index to your urlString.
To get the pickerView selected index use:
[self.dataPicker1 selectedRowInComponent:0]
You can build a urlString as:
urlString=[NSString stringWithFormat:#"?&citynames=%#&collageNames=%#",[self.dataPicker1 selectedRowInComponent:0],[self.dataPicker2 selectedRowInComponent:0]];