Also show error message when value is empty during form validation
The problem I have is actually even visible in the official SmartGWT demo here: https://www.smartclient.com/smartgwt/showcase/#form_validation_regexp
If you enter nothing (leave field empty) and press validate, no error is displayed. For required value, I need the error shown even when the field is empty.
I set my validator to this:
RegExpValidator regExpValidator = new RegExpValidator();
regExpValidator.setExpression("^[0-9A-Z_]7,12$");
regExpValidator.setErrorMessage("Code must contain capital letters and numbers");
codeField.setValidators(regExpValidator);
Now this expression does NOT match an empty string. Yet, I get no error on validation.
How to show errors for empty required values in forms?
java gwt smartgwt
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
add a comment |
The problem I have is actually even visible in the official SmartGWT demo here: https://www.smartclient.com/smartgwt/showcase/#form_validation_regexp
If you enter nothing (leave field empty) and press validate, no error is displayed. For required value, I need the error shown even when the field is empty.
I set my validator to this:
RegExpValidator regExpValidator = new RegExpValidator();
regExpValidator.setExpression("^[0-9A-Z_]7,12$");
regExpValidator.setErrorMessage("Code must contain capital letters and numbers");
codeField.setValidators(regExpValidator);
Now this expression does NOT match an empty string. Yet, I get no error on validation.
How to show errors for empty required values in forms?
java gwt smartgwt
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
add a comment |
The problem I have is actually even visible in the official SmartGWT demo here: https://www.smartclient.com/smartgwt/showcase/#form_validation_regexp
If you enter nothing (leave field empty) and press validate, no error is displayed. For required value, I need the error shown even when the field is empty.
I set my validator to this:
RegExpValidator regExpValidator = new RegExpValidator();
regExpValidator.setExpression("^[0-9A-Z_]7,12$");
regExpValidator.setErrorMessage("Code must contain capital letters and numbers");
codeField.setValidators(regExpValidator);
Now this expression does NOT match an empty string. Yet, I get no error on validation.
How to show errors for empty required values in forms?
java gwt smartgwt
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
The problem I have is actually even visible in the official SmartGWT demo here: https://www.smartclient.com/smartgwt/showcase/#form_validation_regexp
If you enter nothing (leave field empty) and press validate, no error is displayed. For required value, I need the error shown even when the field is empty.
I set my validator to this:
RegExpValidator regExpValidator = new RegExpValidator();
regExpValidator.setExpression("^[0-9A-Z_]7,12$");
regExpValidator.setErrorMessage("Code must contain capital letters and numbers");
codeField.setValidators(regExpValidator);
Now this expression does NOT match an empty string. Yet, I get no error on validation.
How to show errors for empty required values in forms?
java gwt smartgwt
java gwt smartgwt
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
asked Nov 14 '18 at 13:38
Tomáš ZatoTomáš Zato
22.4k21116569
22.4k21116569
add a comment |
add a comment |
1 Answer
1
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oldest
votes
You can directly use setError method. And return the form back.
if(codeField.getText().trim().isEmpty())
codeField.setError("The Code must not be Empty.");
return;
This will give the form back and also validate the empty string.
answered Nov 27 '18 at 17:57
avish98avish98
113
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can directly use setError method. And return the form back.
if(codeField.getText().trim().isEmpty())
codeField.setError("The Code must not be Empty.");
return;
This will give the form back and also validate the empty string.
answered Nov 27 '18 at 17:57
avish98avish98
113
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
add a comment |
You can directly use setError method. And return the form back.
if(codeField.getText().trim().isEmpty())
codeField.setError("The Code must not be Empty.");
return;
This will give the form back and also validate the empty string.
answered Nov 27 '18 at 17:57
avish98avish98
113
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
add a comment |
You can directly use setError method. And return the form back.
if(codeField.getText().trim().isEmpty())
codeField.setError("The Code must not be Empty.");
return;
This will give the form back and also validate the empty string.
answered Nov 27 '18 at 17:57
avish98avish98
113
You can directly use setError method. And return the form back.
if(codeField.getText().trim().isEmpty())
codeField.setError("The Code must not be Empty.");
return;
This will give the form back and also validate the empty string.
answered Nov 27 '18 at 17:57
avish98avish98
113
edited Nov 27 '18 at 18:10
answered Nov 27 '18 at 17:57
avish98avish98
113
answered Nov 27 '18 at 17:57
avish98avish98
113
answered Nov 27 '18 at 17:57
avish98avish98
113
113
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
add a comment |
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
Yeah, I can do that, but it seemed stupid to have to validate the value manually when I have a validator.
– Tomáš Zato
Nov 27 '18 at 18:22
add a comment |
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