Can't change input Value in Swift 4.2
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I have an input UITextField and want to change his value.
I defined this UITextField like this:
@IBOutlet weak var valueInput: UITextField!
Than in viewDidLoad() I make delegate - self:
valueInput?.delegate = self
and then in viewDidLoad I try to assign value to input like this:
if let priceIn = self.valueIn Input {
valueIn.text! = strPr // (this is var and it has String format I've checked it, and I also try to make print(strPr) and I get a value)
}
Unfortunately this string is not working:
valueIn.text! = strPr
But if I write something like this
valueIn.text! = "11"
This one will work.
I've tried to to something like this also, but it's not working also:
valueIn.text! = "(strPr)"
Anyone have any ideas?
Thanks for any answer, hope somebody had the same problem and know how to resolve it.
ios swift swift4.2 xcode10.1
edited Nov 16 '18 at 14:07
vadian
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
|
show 6 more comments
I have an input UITextField and want to change his value.
I defined this UITextField like this:
@IBOutlet weak var valueInput: UITextField!
Than in viewDidLoad() I make delegate - self:
valueInput?.delegate = self
and then in viewDidLoad I try to assign value to input like this:
if let priceIn = self.valueIn Input {
valueIn.text! = strPr // (this is var and it has String format I've checked it, and I also try to make print(strPr) and I get a value)
}
Unfortunately this string is not working:
valueIn.text! = strPr
But if I write something like this
valueIn.text! = "11"
This one will work.
I've tried to to something like this also, but it's not working also:
valueIn.text! = "(strPr)"
Anyone have any ideas?
Thanks for any answer, hope somebody had the same problem and know how to resolve it.
ios swift swift4.2 xcode10.1
edited Nov 16 '18 at 14:07
vadian
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
What do you mean by "it's not working"? Do you get a compile time error? What is the type ofvalueIn?
– Daniel T.
Nov 16 '18 at 14:04
self.valueIn Input— what does it even mean? It is not valid Swift.
– user28434
Nov 16 '18 at 14:10
1
Show the code wherestrPris declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you meanif let priceIn = self.valueInputthis optional binding is pointless because the outlet is connected reliably beforeviewDidLoadis called.
– vadian
Nov 16 '18 at 14:14
Yesprint(strPr) beforevalueIn.text! = strPr
– canister_exister
Nov 16 '18 at 14:47
Delete this lineif let priceIn = self.valueIn Input {
– canister_exister
Nov 16 '18 at 14:52
|
show 6 more comments
I have an input UITextField and want to change his value.
I defined this UITextField like this:
@IBOutlet weak var valueInput: UITextField!
Than in viewDidLoad() I make delegate - self:
valueInput?.delegate = self
and then in viewDidLoad I try to assign value to input like this:
if let priceIn = self.valueIn Input {
valueIn.text! = strPr // (this is var and it has String format I've checked it, and I also try to make print(strPr) and I get a value)
}
Unfortunately this string is not working:
valueIn.text! = strPr
But if I write something like this
valueIn.text! = "11"
This one will work.
I've tried to to something like this also, but it's not working also:
valueIn.text! = "(strPr)"
Anyone have any ideas?
Thanks for any answer, hope somebody had the same problem and know how to resolve it.
ios swift swift4.2 xcode10.1
edited Nov 16 '18 at 14:07
vadian
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
I have an input UITextField and want to change his value.
I defined this UITextField like this:
@IBOutlet weak var valueInput: UITextField!
Than in viewDidLoad() I make delegate - self:
valueInput?.delegate = self
and then in viewDidLoad I try to assign value to input like this:
if let priceIn = self.valueIn Input {
valueIn.text! = strPr // (this is var and it has String format I've checked it, and I also try to make print(strPr) and I get a value)
}
Unfortunately this string is not working:
valueIn.text! = strPr
But if I write something like this
valueIn.text! = "11"
This one will work.
I've tried to to something like this also, but it's not working also:
valueIn.text! = "(strPr)"
Anyone have any ideas?
Thanks for any answer, hope somebody had the same problem and know how to resolve it.
ios swift swift4.2 xcode10.1
ios swift swift4.2 xcode10.1
edited Nov 16 '18 at 14:07
vadian
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
edited Nov 16 '18 at 14:07
vadian
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
edited Nov 16 '18 at 14:07
vadian
156k17166192
edited Nov 16 '18 at 14:07
vadian
156k17166192
edited Nov 16 '18 at 14:07
vadian
156k17166192
156k17166192
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
asked Nov 16 '18 at 13:54
Vitaliy MckayVitaliy Mckay
709
709
What do you mean by "it's not working"? Do you get a compile time error? What is the type ofvalueIn?
– Daniel T.
Nov 16 '18 at 14:04
self.valueIn Input— what does it even mean? It is not valid Swift.
– user28434
Nov 16 '18 at 14:10
1
Show the code wherestrPris declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you meanif let priceIn = self.valueInputthis optional binding is pointless because the outlet is connected reliably beforeviewDidLoadis called.
– vadian
Nov 16 '18 at 14:14
Yesprint(strPr) beforevalueIn.text! = strPr
– canister_exister
Nov 16 '18 at 14:47
Delete this lineif let priceIn = self.valueIn Input {
– canister_exister
Nov 16 '18 at 14:52
|
show 6 more comments
What do you mean by "it's not working"? Do you get a compile time error? What is the type ofvalueIn?
– Daniel T.
Nov 16 '18 at 14:04
self.valueIn Input— what does it even mean? It is not valid Swift.
– user28434
Nov 16 '18 at 14:10
1
Show the code wherestrPris declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you meanif let priceIn = self.valueInputthis optional binding is pointless because the outlet is connected reliably beforeviewDidLoadis called.
– vadian
Nov 16 '18 at 14:14
Yesprint(strPr) beforevalueIn.text! = strPr
– canister_exister
Nov 16 '18 at 14:47
Delete this lineif let priceIn = self.valueIn Input {
– canister_exister
Nov 16 '18 at 14:52
What do you mean by "it's not working"? Do you get a compile time error? What is the type of
valueIn?– Daniel T.
Nov 16 '18 at 14:04
What do you mean by "it's not working"? Do you get a compile time error? What is the type of
valueIn?– Daniel T.
Nov 16 '18 at 14:04
self.valueIn Input — what does it even mean? It is not valid Swift.– user28434
Nov 16 '18 at 14:10
self.valueIn Input — what does it even mean? It is not valid Swift.– user28434
Nov 16 '18 at 14:10
1
1
Show the code where
strPr is declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you mean if let priceIn = self.valueInput this optional binding is pointless because the outlet is connected reliably before viewDidLoad is called.– vadian
Nov 16 '18 at 14:14
Show the code where
strPr is declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you mean if let priceIn = self.valueInput this optional binding is pointless because the outlet is connected reliably before viewDidLoad is called.– vadian
Nov 16 '18 at 14:14
Yes
print(strPr) before valueIn.text! = strPr– canister_exister
Nov 16 '18 at 14:47
Yes
print(strPr) before valueIn.text! = strPr– canister_exister
Nov 16 '18 at 14:47
Delete this line
if let priceIn = self.valueIn Input {– canister_exister
Nov 16 '18 at 14:52
Delete this line
if let priceIn = self.valueIn Input {– canister_exister
Nov 16 '18 at 14:52
|
show 6 more comments
1 Answer
1
active
oldest
votes
These lines are wrong:
valueIn.text! = strPr
valueIn.text! = "11"
valueIn.text! should only appear on the right side, in case you are sure valueIn references a valid object (not nil) and text is declared as var text: String?
Not sure exactly how your variables are declared, but try something like this:
valueIn.text = "11"
Or, if strPtr is an Optional, try this:
if let strPr = strPr {
valueIn.text = strPr
print("New valueIn.text: (valueIn.text!)")
}
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
add a comment |
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votes
These lines are wrong:
valueIn.text! = strPr
valueIn.text! = "11"
valueIn.text! should only appear on the right side, in case you are sure valueIn references a valid object (not nil) and text is declared as var text: String?
Not sure exactly how your variables are declared, but try something like this:
valueIn.text = "11"
Or, if strPtr is an Optional, try this:
if let strPr = strPr {
valueIn.text = strPr
print("New valueIn.text: (valueIn.text!)")
}
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
add a comment |
These lines are wrong:
valueIn.text! = strPr
valueIn.text! = "11"
valueIn.text! should only appear on the right side, in case you are sure valueIn references a valid object (not nil) and text is declared as var text: String?
Not sure exactly how your variables are declared, but try something like this:
valueIn.text = "11"
Or, if strPtr is an Optional, try this:
if let strPr = strPr {
valueIn.text = strPr
print("New valueIn.text: (valueIn.text!)")
}
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
add a comment |
These lines are wrong:
valueIn.text! = strPr
valueIn.text! = "11"
valueIn.text! should only appear on the right side, in case you are sure valueIn references a valid object (not nil) and text is declared as var text: String?
Not sure exactly how your variables are declared, but try something like this:
valueIn.text = "11"
Or, if strPtr is an Optional, try this:
if let strPr = strPr {
valueIn.text = strPr
print("New valueIn.text: (valueIn.text!)")
}
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
These lines are wrong:
valueIn.text! = strPr
valueIn.text! = "11"
valueIn.text! should only appear on the right side, in case you are sure valueIn references a valid object (not nil) and text is declared as var text: String?
Not sure exactly how your variables are declared, but try something like this:
valueIn.text = "11"
Or, if strPtr is an Optional, try this:
if let strPr = strPr {
valueIn.text = strPr
print("New valueIn.text: (valueIn.text!)")
}
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
answered Nov 17 '18 at 14:35
ppalancicappalancica
3,31341834
3,31341834
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
add a comment |
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
I have an error on the first line, it says "Initializer for conditional binding must have Optional type, not 'String'"
– Vitaliy Mckay
Nov 27 '18 at 17:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
@VitaliyMckay Remove the if let strPtr = strPtr { and last } then
– ppalancica
Nov 28 '18 at 10:42
add a comment |
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What do you mean by "it's not working"? Do you get a compile time error? What is the type of
valueIn?– Daniel T.
Nov 16 '18 at 14:04
self.valueIn Input— what does it even mean? It is not valid Swift.– user28434
Nov 16 '18 at 14:10
1
Show the code where
strPris declared and populated – by the way please use more descriptive variable names. I guess it's a timing/asynchonous issue. And if you meanif let priceIn = self.valueInputthis optional binding is pointless because the outlet is connected reliably beforeviewDidLoadis called.– vadian
Nov 16 '18 at 14:14
Yes
print(strPr) beforevalueIn.text! = strPr– canister_exister
Nov 16 '18 at 14:47
Delete this line
if let priceIn = self.valueIn Input {– canister_exister
Nov 16 '18 at 14:52