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Is it possible to pass parameters to js controller in lwc

3

1

I am trying to implement a drag and drop functionality in lwc and I am getting the below code:

<template for:each=leftTask for:item="task">
 <div class="draggable" draggable="true" key=task.taskId ondragstart=handleDragStart(task.taskId)>task.name</div>
</template>

However, it seems that lwc doesn't allow passing parameters directly into handle functions. So the above code won't work. I am wondering is it possible to pass any parameter into js handler at all? Or do I have to make a separate child component in order to handle this?

lightning-web-components

share|improve this question

asked yesterday

Lance ShiLance Shi

7,51133076

add a comment | 

3

1

I am trying to implement a drag and drop functionality in lwc and I am getting the below code:

<template for:each=leftTask for:item="task">
 <div class="draggable" draggable="true" key=task.taskId ondragstart=handleDragStart(task.taskId)>task.name</div>
</template>

However, it seems that lwc doesn't allow passing parameters directly into handle functions. So the above code won't work. I am wondering is it possible to pass any parameter into js handler at all? Or do I have to make a separate child component in order to handle this?

lightning-web-components

share|improve this question

asked yesterday

Lance ShiLance Shi

7,51133076

add a comment | 

I am trying to implement a drag and drop functionality in lwc and I am getting the below code:

<template for:each=leftTask for:item="task">
 <div class="draggable" draggable="true" key=task.taskId ondragstart=handleDragStart(task.taskId)>task.name</div>
</template>

However, it seems that lwc doesn't allow passing parameters directly into handle functions. So the above code won't work. I am wondering is it possible to pass any parameter into js handler at all? Or do I have to make a separate child component in order to handle this?

lightning-web-components

share|improve this question

asked yesterday

Lance ShiLance Shi

7,51133076

<template for:each=leftTask for:item="task">
 <div class="draggable" draggable="true" key=task.taskId ondragstart=handleDragStart(task.taskId)>task.name</div>
</template>

share|improve this question

asked yesterday

Lance ShiLance Shi

7,51133076

share|improve this question

asked yesterday

Lance ShiLance Shi

7,51133076

asked yesterday

Lance ShiLance Shi

7,51133076

asked yesterday

Lance ShiLance Shi

7,51133076

1 Answer
1

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4

You can read data directly from the target:

<div data-id=task.taskId class="draggable" draggable="true" key=task.taskId 
 ondragstart=handleDragStart>task.name</div>

---

function handleDragStart(event) 
 var taskId = event.target.dataset.id;
 // ...

share|improve this answer

answered yesterday

sfdcfoxsfdcfox

261k12207452

add a comment | 

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4

You can read data directly from the target:

<div data-id=task.taskId class="draggable" draggable="true" key=task.taskId 
 ondragstart=handleDragStart>task.name</div>

---

function handleDragStart(event) 
 var taskId = event.target.dataset.id;
 // ...

share|improve this answer

answered yesterday

sfdcfoxsfdcfox

261k12207452

add a comment | 

4

You can read data directly from the target:

<div data-id=task.taskId class="draggable" draggable="true" key=task.taskId 
 ondragstart=handleDragStart>task.name</div>

---

function handleDragStart(event) 
 var taskId = event.target.dataset.id;
 // ...

share|improve this answer

answered yesterday

sfdcfoxsfdcfox

261k12207452

add a comment | 

You can read data directly from the target:

<div data-id=task.taskId class="draggable" draggable="true" key=task.taskId 
 ondragstart=handleDragStart>task.name</div>

---

function handleDragStart(event) 
 var taskId = event.target.dataset.id;
 // ...

share|improve this answer

answered yesterday

sfdcfoxsfdcfox

261k12207452

<div data-id=task.taskId class="draggable" draggable="true" key=task.taskId 
 ondragstart=handleDragStart>task.name</div>

function handleDragStart(event) 
 var taskId = event.target.dataset.id;
 // ...

share|improve this answer

answered yesterday

sfdcfoxsfdcfox

261k12207452

answered yesterday

sfdcfoxsfdcfox

261k12207452

answered yesterday

sfdcfoxsfdcfox

261k12207452