Apex Code Development You need to sign in to do that
Don't have an account?
Sai deep 13 if else loop not working during file upload in lightning component JS Controller ERROR:-[Cannot read property 'length' of null]
Component:-
<lightning:input aura:id="fuploader" type="file" name="file" label="Upload File" multiple="false" required="false"/>
JS Controller:-
({
doSave : function(component, event, helper) {
alert('Please wait for few seconds')
if (component.find("fuploader").get("v.files").length > 0 ||component.find("fuploader").get("v.files").length !== NULL) {
helper.uploadHelper(component, event);
} else{
alert('Hello');
}
}
})
Error:- This page has an error. You might just need to refresh it. Action failed: c:InclusionForm$controller$doSave [Cannot read property 'length' of null] Failing descriptor: {c:InclusionForm$controller$doSave
Thank You
<lightning:input aura:id="fuploader" type="file" name="file" label="Upload File" multiple="false" required="false"/>
JS Controller:-
({
doSave : function(component, event, helper) {
alert('Please wait for few seconds')
if (component.find("fuploader").get("v.files").length > 0 ||component.find("fuploader").get("v.files").length !== NULL) {
helper.uploadHelper(component, event);
} else{
alert('Hello');
}
}
})
Error:- This page has an error. You might just need to refresh it. Action failed: c:InclusionForm$controller$doSave [Cannot read property 'length' of null] Failing descriptor: {c:InclusionForm$controller$doSave
Thank You
In the memory, it is expressed as null.length which results the error you see.
Once you selected a file for the component, component.find("fuploader").get("v.files").length will return a value.
You may modify the code to:
if (component.find("fuploader").get("v.files") != null)
All Answers
In the memory, it is expressed as null.length which results the error you see.
Once you selected a file for the component, component.find("fuploader").get("v.files").length will return a value.
You may modify the code to:
if (component.find("fuploader").get("v.files") != null)
Thank you so much for Quick response
I have changed the code as you said above, it worked fine
Thanks and regards
Saideep