First of, I'm very new to NativeScript. I followed a tutorial for a ToDo list found here https://x-team.com/blog/build-simple-todo-list-mobile-application-nativescript/, and as a little exercise for myself I wanted to add a remove function for the tasks inside a list.
Here's my code:
Tasks.xml
<Page xmlns="http://schemas.nativescript.org/tns.xsd" navigatingTo="onNavigatingTo">
<Page.actionBar>
<ActionBar title="Tasks">
<ActionBar.actionItems>
<ActionItem text="New" tap="{{ insert }}" ios.position="right" />
<ActionItem text="Delete" tap="{{ delete }}" ios.position="right" />
</ActionBar.actionItems>
</ActionBar>
</Page.actionBar>
<ListView items="{{ tasks }}"></ListView>
tasks-view-model.js
var Observable = require("data/observable").Observable;
var ObservableArray = require("data/observable-array").ObservableArray;
var Sqlite = require("nativescript-sqlite");
var Dialogs = require("ui/dialogs");
function createViewModel(database, listId) {
var viewModel = new Observable();
viewModel.tasks = new ObservableArray([]);
viewModel.listId = listId;
viewModel.insert = function() {
Dialogs.prompt("Task Name", "").then(result => {
database.execSQL("INSERT INTO tasks (list_id, task_name) VALUES (?, ?)", [this.listId, result.text]).then(id => {
var _string = "ID: " + id + ", " + result.text;
this.tasks.push(_string);
}, error => {
console.log("INSERT ERROR", error);
});
});
}
viewModel.select = function() {
this.tasks = new ObservableArray([]);
database.all("SELECT id, task_name FROM tasks WHERE list_id = ?", [this.listId]).then(rows => {
for(var row in rows) {
var _id = rows[row][0];
var _item = rows[row][1];
var _string = "ID: " + _id + ", " + _item;
this.tasks.push(_string);
}
}, error => {
console.log("SELECT ERROR", error);
});
}
viewModel.delete = function() {
Dialogs.prompt("Task ID", "").then(result => {
database.execSQL("DELETE FROM tasks WHERE id = ?", [result.text]).then(id => {
Dialogs.prompt(id);
}, error => {
console.log("DELETE ERROR", error);
});
});
}
viewModel.select();
return viewModel;
}
exports.createViewModel = createViewModel;
The actual deleting of the item when passing its ID works fine. However the UI doesn't show this change without me manually refreshing it, and I cannot figure out why. In case it matters, I'm running this on an Android emulator.
Thanks in advance for your help.
Inside your delete function you also need to remove the item from the ObservableArray.
viewModel.delete = function() {
Dialogs.prompt("Task ID", "").then(result => {
database.execSQL("DELETE FROM tasks WHERE id = ?", [result.text]).then(id => {
Dialogs.prompt(id);
/// remove the item from the observable array.
this.tasks.splice(INDEX_OF_THE_ITEM_DELETED,1);
}, error => {
console.log("DELETE ERROR", error);
});
});
}
You may want to consider changing the ObservableArray of tasks from an array of strings to an array of Objects with an id property and value property. So it's easier to determine the index of the item you want to remove. If not you will have to rebuild value that is pushed into the array to find the index.
Related
I am using a 'Custom Datatable' solution in order to modify picklist values within a datatable. Project code may be referenced here:
https://live.playg.app/play/picklist-in-lightning-datatable
I have made changes so that I can retrieve data from the custom object: Payment__c, and I am attempting modify the picklist values for the Payment_Status__c field. My 'debugging' method has been to create numerous console.log statements to verify data during the updating process. Picklist values are currently hardcoded (have not figured out how to dynamically pull from SF yet). Inline edit of individual cells works fine, and I am able to save those values as well (though changes are not reflected until I perform a manual page refresh). Picklist selection is working, but I am unable to save the currently selected picklist value in the datatable.
I believe that the intended trigger event for picklist selection changes--'valueselect', is not being fired, and the handleSelection method is not receiving this event when a new picklist selection is made.
The lightning component used on Salesforce is c-customDatatableDemo:
customDatatableDemo.js
import { LightningElement, track, wire } from 'lwc';
import getPayments from '#salesforce/apex/PaymentController.getPayments';
import saveRecords from '#salesforce/apex/PaymentController.saveRecords';
import { updateRecord } from 'lightning/uiRecordApi';
import { refreshApex } from '#salesforce/apex';
import { ShowToastEvent } from 'lightning/platformShowToastEvent';
export default class CustomDatatableDemo extends LightningElement {
#track data = [];
//have this attribute to track data changed
//with custom picklist or custom lookup
#track draftValues = [];
#track lastSavedData = [];
connectedCallback() {
this.columns = [
{
label: 'Name',
fieldName: 'Name',
editable: false
}, {
label: 'Invoice Number',
fieldName: 'Invoice_Number__c',
editable: true
}, {
label: 'Invoice Amount',
fieldName: 'Invoice_Amount__c',
type: 'currency',
editable: true
}, {
label: 'Invoice Date',
fieldName: 'Invoice_Date__c',
type: 'date',
editable: true
}, {
label: 'Payment Status',
fieldName: 'Payment_Status__c',
type: 'picklist',
typeAttributes:
{
placeholder: 'Choose Status',
options: [
{ label: 'Needs to Be Paid', value: 'Needs to Be Paid' },
{ label: 'Issued', value: 'Issued' },
{ label: 'Voided', value: 'Voided' },
] // List of Payment Status picklist options
, value: {fieldName: 'Payment_Status__c' } // default value for picklist
, context: {fieldName: 'Id' } // binding Payment Id with context variable to be returned back
}
},
{
label: 'Description', fieldName: 'Work_Description__c', type: 'text', editable: true
}];
// Get Payments data
getPayments()
.then(result => {
this.data = result;
this.error = undefined;
})
.catch(error => {
this.error = error;
this.data = undefined;
})
// Save last saved copy
this.lastSavedData = JSON.parse(JSON.stringify(this.data));
}
updateDataValues(updateItem) {
console.log('START--updateDataValues()');
let copyData = [... this.data];
copyData.forEach(item => {
if (item.Id === updateItem.Id) {
for (let field in updateItem) {
console.log('updateDataValues() item.Id = ' + JSON.stringify(updateItem.Id));
console.log('updateItem[field] = ' + JSON.stringify(updateItem[field]));
item[field] = updateItem[field];
console.log('UPDATED--item[field] = ' + updateItem[field]);
}
}
});
//write changes back to original data
this.data = [...copyData];
console.log('this.data = ' + JSON.stringify(this.data));
let tempData = [...this.data];
//console.log('tempData = ' + JSON.stringify(tempData));
console.log('END--updateDataValues()');
}
updateDraftValues(updateItem) {
console.log('START--updateDraftValues()');
console.log('stringify draft updateItem = ' + JSON.stringify(updateItem));
let draftValueChanged = false;
let copyDraftValues = [...this.draftValues];
//store changed value to do operations
//on save. This will enable inline editing &
//show standard cancel & save button
let i = 0;
copyDraftValues.forEach(item => {
if (item.Id === updateItem.Id) {
i++;
console.log('i = ' + i);
for (let field in updateItem) {
console.log(i + '. UpdateDraftValues--item id if selected...item Id = ' + item.Id + ' & item value = ' + item.value);
item[field] = updateItem[field];
console.log('item[field] = ' + updateItem[field]);
}
draftValueChanged = true;
console.log('draftValueChanged = TRUE');
}
});
//draftValueChanged = true;
if (draftValueChanged) {
console.log('YESdraftValueChanged');
console.log('copyDraftValues = ' + JSON.stringify(copyDraftValues));
this.draftValues = [...copyDraftValues];
//console.log('draftValues = ' + JSON.stringify(draftValues));
} else {
console.log('NOdraftValue!Changed');
this.draftValues = [...copyDraftValues, updateItem];
let testDraftValues = {... this.draftValues};
console.log('JSON.stringify(testDraftValues) = ' + JSON.stringify(testDraftValues));
}
console.log('STOP--updateDraftValues()')
}
//listener handler to get the context and data
//updates datatable
picklistChanged(event) {
console.log('START--picklistChanged()');
console.log('EVENT type - ' + event.type);
event.stopPropagation();
let dataReceived = event.detail.data;
let updatedItem = { ...dataReceived };
console.log('picklistChanged()...updatedItem = ' + JSON.stringify(updatedItem));
this.updateDraftValues(updatedItem);
this.updateDataValues(updatedItem);
/* console.log('event.value = ' + event.value);
this.value = event.target.value;
event.stopPropagation();
let dataReceived = event.detail.data;
let updatedItem = { ...dataReceived };
console.log('updatedItem.context ' + updatedItem.context);
console.log('updatedItem.value ' + updatedItem.value);
console.log('updatedItem = ' + JSON.stringify(updatedItem));
this.updateDraftValues(updatedItem);
this.updateDataValues(updatedItem);
console.log('picklistChanged() = ' + JSON.stringify(updatedItem)); */
console.log('STOP--picklistChanged()');
}
handleSelection(event) {
console.log('START--handleSelection()');
this.updateDraftValues(event.detail.draftValues[0]);
console.log('this.updateDraftValues(event.detail.draftValues[0]);')
/* event.stopPropogation();
let dataReceived = event.detail.data;
let updatedItem = { ...dataReceived };
this.updateDraftValues(updatedItem);
this.updateDraftValues(updatedItem); */
console.log('STOP--handleSelection() = ' + JSON.stringify(updatedItem));
}
//handler to handle cell changes & update values in draft values
handleCellChange(event) {
console.log('START--handleCellChange()');
console.log('handleCellChange');
this.updateDraftValues(event.detail.draftValues[0]);
console.log('handleCellChange value = ' + JSON.stringify(this.updateDraftValues));
console.log('END--handleCellChange()');
}
handleSave(event) {
if (event.type === 'picklistchanged'){
}
console.log('START--handleSave');
console.log('Updated items = ', this.draftValues);
// save last saved copy
this.lastSavedData = JSON.parse(JSON.stringify(this.data));
console.log('this.lastSavedData = ' + JSON.stringify(this.lastSavedData));
this.fldsItemValues = event.detail.draftValues;
console.log('this.fldsItemValues = ' + JSON.stringify(this.fldsItemValues));
const inputsItems = this.fldsItemValues.slice().map(draft => {
const fields = Object.assign({}, draft);
console.log('JSON.stringify() fields ' + JSON.stringify(fields));
return { fields };
});
// Show toast after successful update
const promises = inputsItems.map(recordInput => updateRecord(recordInput));
Promise.all(promises).then(res => {
this.dispatchEvent(
new ShowToastEvent({
title: 'Success',
message: 'Records Updated Successfully!!',
variant: 'success'
})
);
this.fldsItemValues = [];
return this.refresh();
}).catch(error => {
this.dispatchEvent(
new ShowToastEvent({
title: 'Error',
message: 'An Error Occured!!',
variant: 'error'
})
);
}).finally(() => {
// Clear draft values
this.draftValues = [];
});
// Refresh the window after successful save
//window.open('url','_self');
//document.location.reload(true);
//cmp.find("table-component-id").set("v.draftValues", null);
console.log('END--handleSave');
}
handleCancel(event) {
//remove draftValues & revert data changes
this.data = JSON.parse(JSON.stringify(this.lastSavedData));
this.draftValues = [];
}
async refresh() {
console.log('async refresh');
await refreshApex(this.data);
//this.connectedCallback();
}
}
customDatatableDemo.html
<template>
<lightning-card title="Invoicing" icon-name="custom:custom17">
<div class="slds-var-m-around_medium">
<template if:true={data}>
<c-custom-data-table
object-api-name="Payment__c"
key-field="Id"
data={data}
value=""
show-row-number-column
columns={columns}
onpicklistchanged={picklistChanged}
onvalueselect={handleSelection}
draft-values={draftValues}
oncellchange={handleCellChange}
onsave={handleSave}
oncancel={handleCancel}>
</c-custom-data-table>
<template if:true={data.error}></template>
</template>
</div>
</lightning-card>
<p>Selected value is: {value}</p>
</template>
customDataTable.js
import LightningDatatable from 'lightning/datatable';
//import the template so that it can be reused
import DatatablePicklistTemplate from './picklist-template.html';
import { loadStyle } from 'lightning/platformResourceLoader';
import CustomDataTableResource from '#salesforce/resourceUrl/CustomDataTable';
export default class CustomDataTable extends LightningDatatable {
static customTypes = {
picklist: {
template: DatatablePicklistTemplate,
typeAttributes: ['label', 'placeholder', 'options', 'value', 'context'],
},
};
constructor() {
super();
Promise.all([
loadStyle(this, CustomDataTableResource),
]).then(() => {})
}
}
picklist-template.html (Same folder as customDataTable)
<template>
<c-datatable-picklist label={typeAttributes.label} value={typeAttributes.value}
placeholder={typeAttributes.placeholder} options={typeAttributes.options} context={typeAttributes.context}>
</c-datatable-picklist>
</template>
datatablePicklist.js
import { LightningElement, api, track } from 'lwc';
export default class DatatablePicklist extends LightningElement {
#api label;
#api placeholder;
#api options;
#api value;
#api context;
handleChange(event) {
//show the selected value on UI
this.value = event.detail.value;
//fire event to send context and selected value to the data table
this.dispatchEvent(new CustomEvent('picklistchanged', {
composed: true,
bubbles: true,
cancelable: true,
detail: {
data: { context: this.context, value: this.value }
}
}));
}
}
datatablePicklist.html
<template>
<div class="picklist-container">
<lightning-combobox name="picklist" label={label} value={value} placeholder={placeholder} options={options}
onchange={handleChange}></lightning-combobox>}
</div>
</template>
lwcEditSaveRow.js
import { LightningElement, wire, track } from 'lwc';
import getAccounts from '#salesforce/apex/lwcEditSaveRowCtrl.getAccounts';
import { updateRecord } from 'lightning/uiRecordApi';
import { ShowToastEvent } from 'lightning/platformShowToastEvent';
import { refreshApex } from '#salesforce/apex';
const columns = [
{
label: 'Name',
fieldName: 'Name',
type: 'text',
}, {
label: 'Phone',
fieldName: 'Phone',
type: 'phone',
editable: true,
}, {
label: 'Industry',
fieldName: 'Industry',
type: 'text',
editable: true,
}, {
label: 'Type',
fieldName: 'Type',
type: 'text',
editable: true
}, {
label: 'Description',
fieldName: 'Type',
type: 'text',
editable: true
}
];
export default class LwcEditSaveRow extends LightningElement {
columns = columns;
#track accObj;
fldsItemValues = [];
#wire(getAccounts)
cons(result) {
this.accObj = result;
if (result.error) {
this.accObj = undefined;
}
};
saveHandleAction(event) {
this.fldsItemValues = event.detail.draftValues;
const inputsItems = this.fldsItemValues.slice().map(draft => {
const fields = Object.assign({}, draft);
return { fields };
});
const promises = inputsItems.map(recordInput => updateRecord(recordInput));
Promise.all(promises).then(res => {
this.dispatchEvent(
new ShowToastEvent({
title: 'Success',
message: 'Records Updated Successfully!!',
variant: 'success'
})
);
this.fldsItemValues = [];
return this.refresh();
}).catch(error => {
this.dispatchEvent(
new ShowToastEvent({
title: 'Error',
message: 'An Error Occured!!',
variant: 'error'
})
);
}).finally(() => {
this.fldsItemValues = [];
});
}
async refresh() {
await refreshApex(this.accObj);
}
}
lwcEditSaveRow.html
<template>
<lightning-card>
<div class="slds-m-around_medium">
<h3 class="slds-text-heading_medium"><lightning-icon icon-name="custom:custom84" size="small"></lightning-icon> <strong style="color:#270086; font-size:13px; margin-right:5px;"> How to inline Edit/Save Rows With Lightning Datatable in Lightning Web Component (LWC) </strong></h3>
<br/><br/>
<template if:true={accObj.data}>
<lightning-datatable key-field="Id"
data={accObj.data}
columns={columns}
onsave={saveHandleAction}
draft-values={fldsItemValues}
hide-checkbox-column
show-row-number-column>
</lightning-datatable>
</template>
<br/>
<br/>
<!--Start RelatedTopics Section-->
<div style="border:1px #ddd solid; padding:10px; background:#eee; margin:40px 0;">
<p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:16px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span>An easy way to learn step-by-step online free Salesforce tutorial, To know more Click <span style="color:#ff8000; font-size:18px;" data-aura-rendered-by="442:0">Here..</span></strong></p>
<br/><br/>
<p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/07/tickMarkIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:17px; font-style:italic; display:inline-block; margin-right:5px; color:rgb(255 128 0);">You May Also Like →</span> </strong></p>
<div style="display:block; overflow:hidden;">
<div style="width: 50%; float:left; display:inline-block">
<ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;">
<li>How to get selected checkbox value in lwc</li>
<li>how to display account related contacts based on AccountId in lwc</li>
<li>how to create lightning datatable row actions in lwc</li>
<li>how to use if and else condition in lwc</li>
<li>how to display selected radio button value in lwc</li>
</ul>
</div>
<div style="width: 50%; float:left; display:inline-block">
<ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;">
<li>display account related contacts based on account name in lwc</li>
<li>how to insert a record of account Using apex class in LWC</li>
<li>how to get picklist values dynamically in lwc</li>
<li>how to edit/save row dynamically in lightning component</li>
<li>update parent field from child using apex trigger</li>
</ul>
</div>
<div style="clear:both;"></div>
<br/>
<div class="youtubeIcon">
<img src="https://www.w3web.net/wp-content/uploads/2021/11/youtubeIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong>TechW3web:-</strong> To know more, Use this <span style="color: #ff8000; font-weight: bold;">Link</span>
</div>
</div>
</div>
<!--End RelatedTopics Section-->
</div>
</lightning-card>
</template>
Example of changing and saving non-picklist value in datatable:
Changing and saving non-picklist value
Example of changing and saving a picklist value:
Changing and saving picklist value (1)
Last bit of console output:
Changing and saving picklsit value (2)
As this is my first time working with Lightning Web components, I would greatly appreciate any assistance you may provide. Thanks in advance.
I was able to get this custom data table component working for something I am developing to effectively bind records as rows. Here 2 differences I notice:
I did not include onvalueselect and oncellchange methods for the component html declaration, only the onpicklistchanged.
You may want to use your custom server side controller method instead of the built-in uiRecordApi->updateRecord one. Something tells me this may not play nice with row data from the data table. In my implementation, I was simply able to pass the draftValues over to the server side method which has a single parameter of list of sObject:
async saveRecords(event){
const updatedFields = event.detail.draftValues;
this.draftValues = [];
this.showSpinner = true
try{
await saveRelatedRecords({sObjs: updatedFields}) // server side save
.then((result) => {
this.updateMessage = result;
})
this.showSpinner = false;
if(this.updateMessage == 'success'){
this.showToast('Success', 'Record(s) Updated', 'success');
} else{
this.showToast('Error', this.updateMessage, 'error');
}
await refreshApex(this._wiredRecordData);
this.unsavedData = this.records;
} catch (error) {
this.showSpinner = false;
this.showToast('Error while updating or refreshing records', error.body.message, 'error');
}
}
In regards to your data not refreshing, I suggest you wire your getPayments method so that you can always get a fresh set from the server side, rather than trying to keep track of and maintain data changes on the client side, something like:
_wiredRecordData;
#wire(getRelatedRecords)
relatedRecords(getRecsResult){
const { data, error } = getRecsResult;
this._wiredRecordData = getRecsResult;
if(data){
this.records = data;
}
}
Then after your success toast in your save method, you can use
await refreshApex(_wiredRecords); and lwc knows to rerender based on the wiring (or at least I think that's how it works.)
Lastly, here is the server side controller method I have to dynamically generate column header information so it does not need to be hard coded into the component. However I did need to modify the custom component a bit to include a new "fieldapi" attribute so that the client side method knows what field to set for the changed value during the onpicklistchanged action.
#AuraEnabled(cacheable=true)
public static String getColumnHeaders(String sObjAPI, String fieldAPIs)
{
List<ColumnHeaderInfo> colHeaders = new List<ColumnHeaderInfo>();
Schema.DescribeSObjectResult sObjDesc = Schema.getGlobalDescribe().get(sObjAPI).getDescribe();
Boolean objIsUpdateable = sObjDesc.isUpdateable();
Map<String, Schema.SObjectField> objFields = sObjDesc.fields.getMap();
for(String field: fieldAPIs.split(','))
{
if(!objFields.keySet().contains(field.toLowerCase())){
continue;
}
Schema.DescribeFieldResult fieldDesc = objFields.get(field).getDescribe();
if(!fieldDesc.isAccessible()){
continue;
}
ColumnHeaderInfo colHeader = new ColumnHeaderInfo();
colHeader.label = fieldDesc.getLabel();
colHeader.fieldName = fieldDesc.getName();
colHeader.editable = fieldDesc.isUpdateable() && sObjDesc.isUpdateable();
colHeader.type_x = fieldDesc.getType().name().toLowerCase();
if(colHeader.type_x == 'picklist')
{
colHeader.type_x = 'picklist';
List<Schema.PicklistEntry> picklistValues = fieldDesc.getPicklistValues();
colHeader.typeAttributes = new TypeAttributes();
colHeader.typeAttributes.options = new List<Option>();
for(Schema.PicklistEntry ple: picklistValues)
{
Option opt = new Option();
opt.value = ple.getValue();
opt.label = ple.getLabel();
colHeader.typeAttributes.options.add(opt);
}
colHeader.typeAttributes.context = new FieldName();
colHeader.typeAttributes.context.fieldName = 'Id';
colHeader.typeAttributes.value = new FieldName();
colHeader.typeAttributes.value.fieldName = fieldDesc.getName();
colHeader.typeAttributes.fieldapi = fieldDesc.getName();
}
// multi-select picklist fields not supported so make them read-only
if(colHeader.type_x == 'multipicklist'){
colHeader.editable = false;
}
colHeaders.add(colHeader);
}
return JSON.serialize(colHeaders).replaceAll('type_x', 'type');
}
private class ColumnHeaderInfo
{
public String label;
public String fieldName;
public String type_x;
public Boolean editable;
public TypeAttributes typeAttributes;
}
private class TypeAttributes
{
public String placeholder;
public List<Option> options;
public FieldName value;
public FieldName context;
public FieldName label;
public FieldName tooltip;
public String fieldapi;
public String target;
}
private class Option
{
public String label;
public String value;
}
private class FieldName
{
public String fieldName;
}
I have a view with a GridMVC and two buttons, in which I'm displaying several parameters of the model, and the buttons Edit or Delete the item in that row.
#Html.Grid(Model).Named("eventsGrid").Columns(columns =>
{
columns.Add(model => model.Summary)
.Titled("Nombre");
columns.Add(model => model.Description)
.Titled("Descripción");
columns.Add(model => model.StartDate)
.Titled("Fecha Inicio");
columns.Add(model => model.EndDate)
.Titled("Fecha Fin");
columns.Add()
.Sanitized(false)
.Encoded(false)
.SetWidth(30)
.RenderValueAs(model => (#Html.ActionLink("Editar", "EditEvent", "Home", new { eventId = model.EventID, calendarId = model.CalendarID }, new { #class = "btn btn-default" }).ToHtmlString()));
columns.Add()
.Sanitized(false)
.Encoded(false)
.SetWidth(30)
.RenderValueAs(model => (#Html.ActionLink("Borrar", "Delete", "Home", new { eventId = model.EventID, calendarId = model.CalendarID }, new {#class = "btn btn-default"}).ToHtmlString()));
What I want to do is that when I click the Delete button, an alert appears to confirm that you want to delete the item, so I made this function in a .js file:
function confirmDelete(EventID, CalendarID) {
if (confirm('¿Desea borrar este evento?'))
{
$.ajax({
url: '#Url.Action("Delete","Home")',
data: { eventId: EventID, calendarId: CalendarID }
})
} else {
// Do nothing!
}
}
I changed it to look like this:
.RenderValueAs(model => #<button onclick="confirmDelete('model.EventID','model.CalendarID')" class='btn btn-default'>Borrar</button>);
but this makes the values in the function literally model.EventID and model.CalendarID, and I can't use #model.EventID as it's already inside an #. I also tried with an answer from How to pass a model field to a Javascript function in a view?:
.RenderValueAs(model => #<button onclick="confirmDelete('" + model.EventID "')" class='btn btn-default'>Borrar</button>);
But this doesn't even call the function.
Which is the correct form to write the models parameters to make it work?
You can use an HtmlString:
.RenderValueAs(model => new HtmlString("<button onclick='confirmDelete(" + model.EventID + ", " + model.CalendarID + ")' class='btn btn-default'>Borrar</button>"));
Sorry for my English. I am trying to pre select those checkboxes whos values have been saved in the database. I did it using javascript in vuejs but those selected checkboxes values are not storing in array.
My code is like
role.component.js
getRoleRowData(data) {
this.roleaction = "edit";
this.addrolemodal = true;
console.log(data.role_id);
axios
.post(apiUrl.api_url + "getRolePermissionData", {
role_id: data.role_id
}).then(
result => {
this.permid = result.data;
var list = [];
result.data.forEach(function(value) {
list.push(value.perm_id);
});
var options = list;
for (var i = 0; i < options.length; i++) {
if (options[i]) document.querySelectorAll('input[value="' + options[i] + '"][type="checkbox"]')[0].checked = true;
}
},
error => {
console.error(error);
}
);
this.addrole = data;
},
And role.component.html
<div class="col-md-8">
<b-form-fieldset>
<div class="form" id="demo">
<h6>Permissions</h6>
<span v-for="perm_name_obj in listPermissionData">
<input type="checkbox" class="perm_id" v-bind:value="perm_name_obj.perm_id" name="perm_id" id="perm_name" v-model="checkedPerm_Id"> {{perm_name_obj.perm_name}}<br>
</span>
<span>Checked names: {{ checkedPerm_Id }}</span>
</div>
</b-form-fieldset>
</div>
And the Output
And the Ouput I got
In simple words I want to pre check checkboxes in vuejs of which values are stored in database.
See the following example, using simulation data
var app = new Vue({
el: '#app',
data () {
return {
listPermissionData: [],
checkedPerm_Id: []
}
},
created () {
setTimeout(_=>{
//Here simulates axois to request Permission data
this.listPermissionData = [
{perm_id:1,perm_name:'perm_name1'},
{perm_id:2,perm_name:'perm_name2'},
{perm_id:3,perm_name:'perm_name3'},
{perm_id:4,perm_name:'perm_name4'},
{perm_id:5,perm_name:'perm_name5'}
];
//Here simulates axois to request Selected Permissions (result.data)
var selected = [
{perm_id:2,perm_name:'perm_name2'},
{perm_id:5,perm_name:'perm_name5'}
]
this.checkedPerm_Id = selected.map(o=>o.perm_id)
},1000)
}
})
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<div id="app">
<div class="form">
<h6>Permissions</h6>
<span v-for="perm_name_obj in listPermissionData">
<input type="checkbox" class="perm_id" v-bind:value="perm_name_obj.perm_id" name="perm_id" id="perm_name" v-model="checkedPerm_Id"> {{perm_name_obj.perm_name}}<br>
</span>
<span>Checked names: {{ checkedPerm_Id }}</span>
</div>
</div>
I solved my problem, here is my code
role.component.js
getRoleRowData(data) {
this.roleaction = "edit";
this.addrolemodal = true;
console.log(data.role_id);
let tempthis = this;
axios
.post(apiUrl.api_url + "getRolePermissionData", {
role_id: data.role_id
}).then(
result => {
this.permid = result.data;
var list = [];
result.data.forEach(function(value) {
//by using tempthis variable we provided the current access to the checkedPerm_Id array which not accessible from out of the function which is getRoleRowData
tempthis.checkedPerm_Id.push(value.perm_id);
list.push(value.perm_id);
});
},
error => {
console.error(error);
}
);
this.addrole = data;
},
My app has a scoreboard page that is supposed to fetch data from sqlite db and display it onNavigatingTo page in a ListView but it does not do it as expected.
The xml page to display the results:
<Page xmlns="http://schemas.nativescript.org/tns.xsd" loaded="pageLoaded" navigatingTo="onNavigatingTo">
<ActionBar title="Scoreboard">
<NavigationButton text="Back" android.systemIcon="ic_menu_back" tap="homeTap"/>
</ActionBar>
<StackLayout orientation="vertical">
<Label text="Your Performance Sheet"></Label>
<ListView items= "{{results}}" >
<ListView.itemTemplate>
<Label text="{{testname}}"/>
<Label text="{{score}}"/>
<Label text="{{percent}}"/>
</ListView.itemTemplate>
</ListView>
</StackLayout>
</Page>
The scoreboard-view-model:
var Observable = require("data/observable").Observable;
var ObservableArray = require("data/observable-array").ObservableArray;
var Sqlite = require("nativescript-sqlite");
function scoreViewModel (database) {
var viewModel = new Observable();
viewModel.results = new ObservableArray([]);
viewModel.select = function () {
this.results = new ObservableArray([]);
database.all("SELECT * FROM scores").then(rows => {
for (var row in rows) {
this.results.push(rows[row]);
}
}, error => {
console.log("SELECT ERROR", error);
})
}
viewModel.select();
return viewModel;
}
exports.scoreViewModel = scoreViewModel;
I am selecting all the data from the scores table and pushing to viewModel.results array which is already bound to the view.
The scoreboard.js :
var observable = require("data/observable");
var scoreViewModel = require("./scoreboard-view-model").scoreViewModel;
var page;
var Sqlite = require("nativescript-sqlite");
exports.onNavigatingTo = function (args) {
page = args.object;
(new Sqlite("scoreboard.db")).then(db => {
db.execSQL("CREATE TABLE IF NOT EXISTS scores (id INTEGER PRIMARY KEY AUTOINCREMENT, testname TEXT, score TEXT, percent TEXT)")
.then(id => {
page.bindingContext = scoreViewModel(db);
}, error => {
console.log(error)
});
}, error => {
console.log(error);
});
}
Someone please help me get the data to show up in the list view.
I got it work by editing the scoreboard-view-model.js file, precisely in the viewModel.Select function:
viewModel.select = function () {
//the line below was changed to this...
//testname, score, and percent are column names in the scores table
database.all("SELECT testname, score, percent FROM scores").then(rows => {
for (var row in rows) {
//the line below was changed too...
viewModel.results.push({testname: rows[row][0], score: rows[row][1], percent: rows[row][2]});
}, error => {
console.log("SELECT ERROR", error);
})
}
Done. it works as expected now. Thanks TJ Vantoll for trying to help. Really Appreciated.
My Create view was like this:
#model ContactProject.Models.Activity.Activity
#{
ViewBag.Title = "Create";
IEnumerable<ContactProject.Models.Activity.Activity> activities = ViewBag.Activities;
}
<div class="editor-label">
#Html.Label("Project")
</div>
<div class="editor-field">
#Html.DropDownList("Projects", ViewBag.Project as SelectList,"----Project----", new { id = "ProjectsID" })
#Html.ValidationMessageFor(model => model.iProjectID)
</div>
<div class="editor-label">
#Html.Label("Title")
</div>
<div class="editor-field" id="TitlesDivID">
<select id="TitlesID" name="Titles"></select>
</div>
// other codes...
if (activities !=null){
// Display activities.
}
here is the code of my JS
$('#ProjectsID').change(function () {
var URL = 'TitleList';
$.getJSON(URL + '/' + $('#ProjectsID').val(), function (data) {
var items = '<option>Select a Title</option>';
$.each(data, function (i, title) {
items += "<option value='" + title.Value + "'>" + title.Text + "</option>";
if (items != null)
{
var addValue = $('#ProjectsID').val();
$.ajax
({
type: "POST",
url: "/Activity/getCreateActivities",
data: { projectID: addValue },
success: function (#ViewBag.Activities) {
}
})
}
})
basically I want to implement my function with this JS to display not only of title related to the project but also all the activities has the same project name.
That's why I'm writing "success: function (#ViewBag.Activities) in my jquery call back function."
here is the method in my controller:
public ActionResult getCreateActivities(string projectID)
{
int iProjectID = Int32.Parse(projectID);
ViewBag.Project = GetProjects();
var Activities = (from a in db.Activities
where a.iProjectID == iProjectID
select a).ToList();
ViewBag.Activities = Activities;
return View("Create");
}
but when I am using breakpoint to debug, there are #ViewBag.Activities returned with value and counts, but seems like didn't display on my screen, anyone has any thoughts on that? any contribute will be greatly appreciated.
Update:
<table>
#foreach (var item in Activities) {
<tr>
<td>
#Html.DisplayFor(modelItem => item.ProjectID)
</td>
<td>
#Html.DisplayFor(modelItem => item.Project.ProjectName)
</td>
</tr>
If you set some values in ViewBag with an ajax request, you won't get it. The rite way to handle this is, simply return the data in JSON format and access it.
public ActionResult getCreateActivities(string projectID)
{
int iProjectID = Int32.Parse(projectID);
var Activities = (from a in db.Activities
where a.iProjectID == iProjectID
select a).ToList();
return Json(new { Projects : GetProjects(),
Activities : Activities } ,JsonRequestBehaviour.AllowGet);
}
The above will return a JSON representation of an anonymous object like this
{
"Projects": [ { "Id": 2 } ],
"Activities": [ { "id": 113,"Name": "My name" } ]
}
And in your ajax method's success callback, access it like
success(function(data){
// now you can acceess data.Projects and data.Activities
}