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IF condition in onchange attribute
Lightning Component aura:iteration is throwing error upon rerenderingLightning Component - Locker Service IssueError in lightning componentAnyone successfully using numeraljs with LockerService enabled?Lightning component order of execution in inheritance problemRestaurant Locator Trailhead Project Lightning ErrorComponent Initilization Error: cannot read property 'g'Lightning component error handleOnBlur eventCannot read property 'set' of undefined when List<String> return in ui:inputSelectError with a Salesforce Lightning Component in the Utility Bar (IE11)
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I want to trigger controller method only when text box gets cleared out. I tried to use IF condition in onchange but it throws out error Uncaught Uncaught error in markup://aura:valueChange [Cannot read property 'config' of undefined]
<lightning:input type="text" name="searchBox" label="!v.searchLabel"
value ="!v.searchString" onchange ="!if(v.searchString == null,c.onEmptyInput,''"/>
I know I can just use onchange=!c.onEmptyInput and then check if searchString is null in controller method and write my logic based on that. But I want to know if IF statements can be used to call controller methods.
lightning-aura-components
asked 8 hours ago
devforcedevforce
166215
add a comment |
I want to trigger controller method only when text box gets cleared out. I tried to use IF condition in onchange but it throws out error Uncaught Uncaught error in markup://aura:valueChange [Cannot read property 'config' of undefined]
<lightning:input type="text" name="searchBox" label="!v.searchLabel"
value ="!v.searchString" onchange ="!if(v.searchString == null,c.onEmptyInput,''"/>
I know I can just use onchange=!c.onEmptyInput and then check if searchString is null in controller method and write my logic based on that. But I want to know if IF statements can be used to call controller methods.
lightning-aura-components
asked 8 hours ago
devforcedevforce
166215
add a comment |
I want to trigger controller method only when text box gets cleared out. I tried to use IF condition in onchange but it throws out error Uncaught Uncaught error in markup://aura:valueChange [Cannot read property 'config' of undefined]
<lightning:input type="text" name="searchBox" label="!v.searchLabel"
value ="!v.searchString" onchange ="!if(v.searchString == null,c.onEmptyInput,''"/>
I know I can just use onchange=!c.onEmptyInput and then check if searchString is null in controller method and write my logic based on that. But I want to know if IF statements can be used to call controller methods.
lightning-aura-components
asked 8 hours ago
devforcedevforce
166215
I want to trigger controller method only when text box gets cleared out. I tried to use IF condition in onchange but it throws out error Uncaught Uncaught error in markup://aura:valueChange [Cannot read property 'config' of undefined]
<lightning:input type="text" name="searchBox" label="!v.searchLabel"
value ="!v.searchString" onchange ="!if(v.searchString == null,c.onEmptyInput,''"/>
I know I can just use onchange=!c.onEmptyInput and then check if searchString is null in controller method and write my logic based on that. But I want to know if IF statements can be used to call controller methods.
lightning-aura-components
lightning-aura-components
asked 8 hours ago
devforcedevforce
166215
asked 8 hours ago
devforcedevforce
166215
asked 8 hours ago
devforcedevforce
166215
asked 8 hours ago
devforcedevforce
166215
asked 8 hours ago
devforcedevforce
166215
166215
add a comment |
add a comment |
1 Answer
1
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I know I can just use
onchange=!c.onEmptyInputand then check ifsearchStringisnullin controller method and write my logic based on that.
You should stick to this approach instead of using any conditional logic here. Additionally, your onchange will not even trigger if the input is empty.
With what you are trying to do, you won't be able to use a conditional statement here, as it will not work. For onchange to work, you will need to explicitly mention a controller function in format of:
onchange="!c.myFunction"
Values anything other than this format will have no effect on the event handler (I can confirm this with a quick test). In this case even if your if condition evaluates correctly (this is not correctly written though in its current form and you will get a compile time error), you will only get a value, which will not be of the same format as what is expected.
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
add a comment |
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1 Answer
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1 Answer
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I know I can just use
onchange=!c.onEmptyInputand then check ifsearchStringisnullin controller method and write my logic based on that.
You should stick to this approach instead of using any conditional logic here. Additionally, your onchange will not even trigger if the input is empty.
With what you are trying to do, you won't be able to use a conditional statement here, as it will not work. For onchange to work, you will need to explicitly mention a controller function in format of:
onchange="!c.myFunction"
Values anything other than this format will have no effect on the event handler (I can confirm this with a quick test). In this case even if your if condition evaluates correctly (this is not correctly written though in its current form and you will get a compile time error), you will only get a value, which will not be of the same format as what is expected.
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
add a comment |
I know I can just use
onchange=!c.onEmptyInputand then check ifsearchStringisnullin controller method and write my logic based on that.
You should stick to this approach instead of using any conditional logic here. Additionally, your onchange will not even trigger if the input is empty.
With what you are trying to do, you won't be able to use a conditional statement here, as it will not work. For onchange to work, you will need to explicitly mention a controller function in format of:
onchange="!c.myFunction"
Values anything other than this format will have no effect on the event handler (I can confirm this with a quick test). In this case even if your if condition evaluates correctly (this is not correctly written though in its current form and you will get a compile time error), you will only get a value, which will not be of the same format as what is expected.
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
add a comment |
I know I can just use
onchange=!c.onEmptyInputand then check ifsearchStringisnullin controller method and write my logic based on that.
You should stick to this approach instead of using any conditional logic here. Additionally, your onchange will not even trigger if the input is empty.
With what you are trying to do, you won't be able to use a conditional statement here, as it will not work. For onchange to work, you will need to explicitly mention a controller function in format of:
onchange="!c.myFunction"
Values anything other than this format will have no effect on the event handler (I can confirm this with a quick test). In this case even if your if condition evaluates correctly (this is not correctly written though in its current form and you will get a compile time error), you will only get a value, which will not be of the same format as what is expected.
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
I know I can just use
onchange=!c.onEmptyInputand then check ifsearchStringisnullin controller method and write my logic based on that.
You should stick to this approach instead of using any conditional logic here. Additionally, your onchange will not even trigger if the input is empty.
With what you are trying to do, you won't be able to use a conditional statement here, as it will not work. For onchange to work, you will need to explicitly mention a controller function in format of:
onchange="!c.myFunction"
Values anything other than this format will have no effect on the event handler (I can confirm this with a quick test). In this case even if your if condition evaluates correctly (this is not correctly written though in its current form and you will get a compile time error), you will only get a value, which will not be of the same format as what is expected.
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
edited 8 hours ago
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
answered 8 hours ago
Jayant DasJayant Das
19.5k21331
19.5k21331
add a comment |
add a comment |
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