adminshow
<img src="/fotodebit/{{$infos->fotodebit}}" alt="">
`
Controller
public function adminShow(Info $info)
{
$infos = Info::latest()->paginate(5);
return view('adminShow',compact('infos'));
}
im trying change the variable still cant call the fotodebit
Related
I am using bootstrap datepicker and the problem is that when I pick a date, it does not fire a change or input event and noting is binding with the model property Course.StartDate or Course.EndDate.
The default datepicker works but does not support Afghanistan datetime. That is why I use boostrap datepicker.
Blazor code:
#using Microsoft.AspNetCore.Mvc.Rendering
#using myproject.Data
#using Microsoft.JSInterop;
#inject myproject.Repository.CoursesRepository _coursesRepository
#inject IJSRuntime JS
<EditForm Model="#Course" OnValidSubmit="e=> { if(selectedId == 0) { addCourse(); } else { updateCourse(Course.CourseId); } }">
<div class="mb-2">
<div>#Course.StartDate</div>
<label class="col-form-label" for="StartDate">#Loc["Start Date"]<span class="text-danger fs--1">*</span>:</label>
<InputDate class="form-control" #bind-Value="Course.StartDate" #bind-Value:format="yyyy-MM-dd" id="StartDate" />
<ValidationMessage class="text-danger" For="(() => Course.StartDate)"/>
</div>
<div class="mb-2">
<label class="col-form-label" for="EndDate">#Loc["End Date"]<span class="text-danger fs--1">*</span>:</label>
<InputDate class="form-control" #bind-Value="Course.EndDate" #bind-Value:format="yyyy-MM-dd" id="EndDate"/>
<ValidationMessage class="text-danger" For="(() => Course.EndDate)"/>
</div>
</EditForm>
#code {
public CourseModel Course = new();
public string[] dates = new string[] { "#StartDate", "#EndDate" };
protected override void OnAfterRender(bool firstRender)
{
base.OnAfterRender(firstRender);
loadScripts();
}
void addCourse()
{
_coursesRepository.AddCourse(Course);
FillData();
Course = new();
var title = "Course";
Swal.Success(title : Loc[$"{title} added successfully"],toast : true);
}
// initializes the datepicker
public async Task loadScripts()
{
await JS.InvokeVoidAsync("initializeDatepicker", (object) dates);
}
}
This is script for initializing the datepickers
<script>
function initializeDatepicker(dates) {
dates.forEach((element) => {
$(element).datepicker({
onSelect: function(dateText) {
// this is not working
element.value = this.value;
/*
tried this and still not working
$(element).trigger("change");
also tried this and still not working
$(element).change();
*/
// this is working
console.log("Selected date: " + dateText + "; input's current value: " + this.value);
},
dateFormat: 'yy-mm-dd',
changeMonth: true,
changeYear: true
});
});
}
</script>
The reason for this is that the changes are made with JavaScript and so the page state does not change for Blazor, in other words, Blazor does not notice the value change at all.
To solve this problem, you must inform the Blazor component of the changes by calling a C# method inside the JavaScript function. For this, you can use the DotNet.invokeMethodAsync built-in dotnet method. As follows:
DotNet.invokeMethodAsync('ProjectAssemblyName', 'ComponentMethod', this.value.toString())
Its first argument is the assembly name of your project. The second argument is the name of the C# function that you will write in the component, and finally, the third argument is the selected date value.
The method called in C# should be as follows:
static string selectedDate;
[JSInvokable]
public static void ComponentMethod(string pdate)
{
selectedDate = pdate;
}
This method must be decorated with [JSInvokable] and must be static.
I have done the same thing for another javascript calendar in Persian language. Its codes are available in the JavaScriptPersianDatePickerBlazor repository.
You can also create a custom calendar in the form of a component so that you can use it more easily in all components in any formats that you want such as DateTime or DateTimeOffset or string and so on. There is an example of this in the AmibDatePickerBlazorComponent repository.
I'm working on a Blazor server side app. The page has a table with a list of cars and some filter elements on top. When I select a filter, a spinner should be visible until the new data is fetched and rendered.
The spinner with its variable:
<div class="spinner-border #spinner" role="status">
<span class="visually-hidden">Loading...</span>
</div>
#code{
string spinner = "invisible";
public string vehicleTypeFilter
{
set
{
_vehicleTypeFilter = value;
ApplyFilters();
}
get { return _vehicleTypeFilter; }
}
}
The select for the Baumuster (vehicleType) is bound to the vehicleTypeFilter variable:
<div class="col-md-2 form-floating">
<select class="form-control" #bind="vehicleTypeFilter">
<option value="" selected>Alle</option>
#foreach (var vehicleType in vehicleTypes.OrderBy(x => x.Description))
{
<option value="#vehicleType.Description">#vehicleType.Description</option>
}
</select>
<label>Baumuster</label>
</div>
Then a value is selected, the ApplyFilter method is triggered through the setter of the vehicleTypeFilter variable:
public void ApplyFilters()
{
ToggleSpinner();
// I also tried a StateHasChanged(); right here
// 1. Get all cars
cars = model.CreateIndexViewModel();
// 2. Filter for Baumuster / vehicle type
if (!string.IsNullOrEmpty(vehicleTypeFilter))
{
cars.viewModels = cars.viewModels.Where(x => x.VehicleDescription == vehicleTypeFilter).ToList();
}
ToggleSpinner();
}
The ToggleSpinner method:
public void ToggleSpinner()
{
if (spinner == "invisible" )
spinner = "";
else
spinner = "invisible";
}
Unfortunately, I don't see the spinner. When I inspect the html page right after the breakpoint hits the Baumuster-filter, the value of spinner is still set to "invisible". I even tried to call StateHasChanged(); after the first ToggleSpinner() but that didn't help.
You've shown a lot of code, but I don't see ToggleSpinner
However, you call it twice in your ApplyFilters method, with no blocking calls, so I'd assume that it's turning the spinner on and off so fast that it doesn't render (or at least that you can't notice it).
If the methods you call in ApplyFilters actually take any time, then Henk's got the right idea-- except you should use async Task I think.
Your problem is that you want async behaviour from a synchronous property. The standard advice is against async void but if you want to stay with the property, the minimal change would be:
public async void ApplyFilters()
{
ToggleSpinner();
// I also tried a StateHasChanged(); right here
StateHasChanged(); // this _requests_ an update
await Task.Delay(1); // this is why you need async void
... as before
ToggleSpinner();
StateHasChanged();
}
I am having trouble with creating a custom element that will be used like
<shimmy-dialog type="video" href="/test">Hi</shimmy-dialog>
The custim element will replace this code with a href that when clicked should popup a dialog of a particular type.
Everything seems to work up until the point I try to open the dialog.
This is when I get the error
Unhandled rejection TypeError: Cannot set property 'bindingContext' of null
I do sometimes find the Aurelia errors a little cyptic.
I suspect it has something todo with the element not having a view.
The code is as follows
enum DialogType {
video = 1,
iframe
};
#inject(Bcp, DialogController)
export class ShimmyDialogModel {
private type : DialogType;
constructor(private bcp: Bcp, private controller : DialogController){
console.log("here");
}
async activate(state){
this.type = state['type'];
}
get isVideo() : boolean {
return this.type == DialogType.video;
}
get isIframe() : boolean {
return this.type == DialogType.iframe;
}
}
#noView
#processContent(false)
#customElement('shimmy-dialog')
#inject(Element, App, Bcp, DialogService)
export class ShimmyDialog {
#bindable public type : string;
#bindable public href;
#bindable public name;
private originalContent : string;
constructor(private element: Element, private app: App, private bcp: Bcp,
private dialogService: DialogService) {
this.originalContent = this.element.innerHTML;
}
bind() {
this.element.innerHTML = '' + this.originalContent + '';
}
attached() {
let self = this;
this.type = this.element.getAttribute("type");
let dialogType = DialogType[this.type];
this.element.children[0].addEventListener("click", function(){
if(dialogType == DialogType.iframe) {
self.dialogService.open({ viewModel: ShimmyDialogModel, model: {'type' : dialogType}}).then(response => {
});
}
else if(dialogType == DialogType.video) {
self.dialogService.open({ viewModel: ShimmyDialogModel, model: {'type' : dialogType}}).then(response => {
});
}
return false;
});
}
async typeChanged(newValue) {
this.type = newValue;
}
async hrefChanged(newValue) {
this.href = newValue;
}
}
The template for the dialog is below.
<template>
<require from="materialize-css/bin/materialize.css"></require>
<ai-dialog>
<ai-dialog-header>
</ai-dialog-header>
<ai-dialog-body>
<div if.bind="isVideo">
Video
</div>
<div if.bind="isIframe">
IFrame
</div>
</ai-dialog-body>
<ai-dialog-footer>
<button click.trigger="controller.cancel()">Close</button>
</ai-dialog-footer>
</ai-dialog>
</template>
Thanks for any help.
I solved this by seperating the classes into their own files.
Aurelia did no like having two export classes there.
I am trying to render my aurelia view dynamically, using compose within repeater and it is working fine but my two way binding not working. The view that is getting rendered using compose element doesn't update the property of parent view model.
my code for parent view js file is
export class Index {
public _items: interfaces.IBaseEntity[];
public data: string;
constructor() {
this._items = new Array<interfaces.IBaseEntity>();
this._items.push(new Address());
this._items.push(new HomeAddress());
}
activate() {
this._items.forEach((entity, index, arr) => {
entity.init();
});
//this.data = "data";
}
}
my parent html is as below. In this html i got custom element on which my two binding works but not with compose
<template>
<require from="form/my-element"></require>
<div repeat.for="item of _items">
<!--<my-element type.two-way="data" model.two-way="item.model"></my-element>-->
<compose view-model="${item.view}" model.two-way="item.model"></compose>
</div>
</template>
My child view model
import * as interfaces from '../interfaces';
import {useView, bindable} from 'aurelia-framework';
export class Address implements interfaces.IBaseEntity {
public view: string = "form/address";
#bindable model: string;
constructor() {
console.log("address constructed - " + this.model);
}
init = (): void => {
this.model = "Address";
}
activate(bindingContext) {
this.model = bindingContext;
console.log("address ativated - " + this.model);
}
}
and child view html is
<template>
<h2>Address Template</h2>
<input type="text" value.two-way="model" class="form-control" />
</template>
I know the issue now. I am passing simple property into my compose which doesn't gonna work. It has to be an object
I need to get Guid.Empty in controller and pass it to view. I tried to use ViewBag, I added this code in my controller
public class QuestionnaireController : Controller
{
//....
ViewBag.EmptyGuid = Guid.Empty;
}
and added this code in view
if (rowobject[6] == ViewBag.EmptyGuid) { //...}
but I got some errors in controller
Error 1 Invalid token '=' in class, struct, or interface member declaration
Error 2 Invalid token ';' in class, struct, or interface member declaration
what's wrong and how to make it works?
UPD
I changed code in my controller (I added ViewBag.EmptyGuid inside method)
[HttpGet]
public ActionResult QuestionnaireIndex()
{
ViewBag.EmptyGuid = Guid.Empty.ToString();
FillViewBags();
return View();
}
and this is script in my view
#section scripts{
<script type="text/javascript"> function buttonize(cellvalue, options, rowobject) {
var buttons = '';
if (rowobject[5] == "False") {
buttons += '<input type="button" value="Edit" onclick="editQuestionnaire(' + options.rowId + ')">';
}
buttons += '<input type="button" value="Delete" onclick="deleteQuestionnaire(' + options.rowId + ')">';
if (rowobject[6] == ViewBag.EmptyGuid) {
buttons += '<input type="button" value="Publish" onclick="publishQuestionnaire(' + options.rowId + ')">';
}
else {
buttons += '<input type="button" value="Remove" onclick="removePublishQuestionnaire(' + options.rowId + ')">';
}
return buttons;
}
</script>
}
You have code directly in the class, you need a method. For example:
public class QuestionnaireController : Controller
{
public ActionResult Index()
{
ViewBag.EmptyGuid = Guid.Empty;
return View();
{
}
This error really has nothing to do with MVC: that is invalid C# syntax and you're getting a compilation error.
On a side note - I'd recommend not using ViewBag at all (or almost ever) when you can use a strongly typed model. Same goes for rowobject[6]: I'm not sure what that is, but you definitely don't want data readers on your View. By the time the data is in the view, it should have already been converted to a model.
On the other hand, I don't think it is wrong to use Guid.Empty or default(Guid) on a view.