Problem: Hi fellow programmers, I am new to ASP.NET and tried to figure out why this happens for hours but could not find why. The model in the controller does not get any property after the post. They are all nulls, why is that so?
The view
#model AddProductViewModel
#{
ViewBag.Title = "Add a new Product";
}
<h2 class="text-center">#ViewBag.Title</h2>
<div class="row">
<div class="col-sm-12 offset-lg-2 col-lg-8 offset-xl-3 col-xl-6">
<form asp-action="Add" method="post">
<div class="mb-3">
<label asp-for="#Model.Model" class="form-label">Model Name</label>
<input asp-for="#Model.Model" class="form-control" aria-required="true" />
<span asp-validation-for="Model" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.Description" class="form-label">Description</label>
<textarea asp-for="#Model.Description" class="form-control" aria-required="true" rows="5"></textarea>
<span asp-validation-for="Description" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.Colour" class="form-label">Colour</label>
<input asp-for="#Model.Colour" class="form-control" value="" />
<span asp-validation-for="Colour" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.Size" class="form-label">Size</label>
<input asp-for="#Model.Size" class="form-control" value="" />
<span asp-validation-for="Size" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.Price" class="form-label">Price</label>
<input asp-for="#Model.Price" class="form-control" value="" />
<span asp-validation-for="Price" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.ImageData" class="form-label">Image URL</label>
<input asp-for="#Model.ImageData" class="form-control" aria-required="true" />
<span asp-validation-for="ImageData" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.CategoryId" class="form-label">Category</label>
<select asp-for="#Model.CategoryId" class="form-control">
#foreach (var category in Model.Categories)
{
<option value="#category.Id">#category.Name</option>
}
</select>
<span asp-validation-for="CategoryId" class="text-danger"></span>
</div>
<div class="mb-3">
<label asp-for="#Model.BrandId" class="form-label">Brand</label>
<select asp-for="#Model.BrandId" class="form-control">
#foreach (var brand in Model.Brands)
{
<option value="#brand.Id">#brand.Name</option>
}
</select>
<span asp-validation-for="BrandId" class="text-danger"></span>
</div>
<div class="mb-3">
<input class="btn btn-primary" type="submit" value="Add" />
</div>
</form>
</div>
</div>
#section Scripts {
<partial name="_ValidationScriptsPartial" />
}
The controller
...
[HttpPost]
public async Task<IActionResult> Add(AddProductViewModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
try
{
await productService.AddProductAsync(model);
return RedirectToAction("Index", "Home");
}
catch (Exception)
{
ModelState.AddModelError("", "Something went wrong");
return View(model);
}
}
...
That's the first time something like that happens to me. I have done another project which was very similar if not the same. Any help will be appreciated!
Your model contains property named Model which will conflict with your parameter AddProductViewModel model.
So just change your parameter name like below:
[HttpPost]
public async Task<IActionResult> Add(AddProductViewModel addProductViewModel)
{
if (!ModelState.IsValid)
{
return View(addProductViewModel);
}
try
{
await productService.AddProductAsync(addProductViewModel);
return RedirectToAction("Index", "Home");
}
catch (Exception)
{
ModelState.AddModelError("", "Something went wrong");
return View(addProductViewModel);
}
}
Related
I have a validation for Fueling property which is a double.
[Display(Name = "Tankolás")]
[DisplayFormat(DataFormatString = "{0} l", ApplyFormatInEditMode = false)]
public double? Fueling { get; set; }
If I type letters instead of number in the input I get the error message: The value 'test' is not valid for Tankolás.
How could I change the error message?
Here is the view:
<div class="form-group">
<label asp-for="Fueling" class="control-label"></label>
<input id="Fueling" asp-for="Fueling" class="form-control" placeholder="Tankolás" />
<span asp-validation-for="Fueling" class="text-danger"></span>
</div>
EDIT - Full View code
#model MainProject.Models.RoadRecord
#{
ViewData["Title"] = "Hozzáadás";
}
<head>
<link rel="stylesheet" href="~/css/RoadRecords/create.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
</head>
<div class="container">
<div class="text-center">
<h2>Új Menetlevél hozzáadása</h2>
</div>
<div class="row justify-content-center">
<div class="col-8">
<form asp-action="Create">
<input type="hidden" asp-for="UserId" />
<input type="hidden" asp-for="LicencePlate" />
<div class="form-group">
<label asp-for="Mileage" class="control-label"></label>
<div class="input-group-sm">
<input asp-for="Mileage" class="form-control" placeholder="Kilométer" />
<div id="mileageContainer" class="input-group-append">
<partial name="_ShowMileagePartialView.cshtml" model="#Model" />
</div>
</div>
<span asp-validation-for="Mileage" class="text-danger"></span>
#if (!string.IsNullOrEmpty(ViewBag.Message))
{
<span class="text-danger">
#ViewBag.Message
</span>
}
</div>
#*
<div class="form-group">
<label asp-for="TimeStamp" class="control-label"></label>
<input type="datetime-local" asp-for="TimeStamp" class="form-control" value="#DateTime.Now.ToString("yyyy-MM-ddTHH:mm")" />
<span asp-validation-for="TimeStamp" class="text-danger"></span>
</div>
*#
<div class="form-group">
<label asp-for="Location" class="control-label"></label>
<div class="input-group">
<input id="varos" type="text" asp-for="Location" class="form-control" aria-describedby="getLocationButton" />
<div class="input-group-append">
<button type="button" class="btn btn-primary" id="getLocationButton">Pozícióm</button>
</div>
</div>
<span asp-validation-for="Location" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Type" class="control-label"></label>
<select id="selectType" asp-for="Type" class="form-control">
<option selected value="C">Céges</option>
<option value="M">Magán</option>
</select>
</div>
<div class="form-group">
<label asp-for="Fueling" class="control-label"></label>
<input id="Fueling" asp-for="Fueling" class="form-control" placeholder="Tankolás" />
<span asp-validation-for="Fueling" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Note" class="control-label"></label>
<input asp-for="Note" class="form-control" placeholder="Megjegyzés" />
<span asp-validation-for="Note" class="text-danger"></span>
</div>
<div class="form-group">
#Html.AntiForgeryToken()<input onclick="ConvertDouble()" type="submit" value="Hozzáadás" class="btn btn-primary w-100" />
</div>
</form>
<a class="add" asp-action="Index" asp-route-licencePlate="#ViewBag.LicencePlate">
<button type="button" class="btn btn-secondary w-100">
Vissza
</button>
</a>
</div>
</div>
</div>
#section Scripts {
<!--GEO Location-->
<script>
$(document).ready(function () {
$('#getLocationButton').click(function () {
$.getJSON('https://geolocation-db.com/json/')
.done(function (location) {
$('#country').html(location.country_name);
$('#state').html(location.state);
$('#city').html(location.city);
$('#latitude').html(location.latitude);
$('#longitude').html(location.longitude);
$('#ip').html(location.IPv4);
document.getElementById('varos').value = location.city;
});
});
});
$.getJSON('https://geolocation-db.com/json/')
.done(function (location) {
console.log("kint");
if (document.getElementById('varos').value == '') {
console.log("bent");
$('#country').html(location.country_name);
$('#state').html(location.state);
$('#city').html(location.city);
$('#latitude').html(location.latitude);
$('#longitude').html(location.longitude);
$('#ip').html(location.IPv4);
document.getElementById('varos').value = location.city;
}
});
</script>
<!--Get Milage-->
<script>
$(function () {
$.ajax({
type: "Get",
url: "../RoadRecords/ShowMileage?licencePlate=" + "#ViewBag.LicencePlate",
success: function (data) {
$("#mileageContainer").html(data);
},
error: function (response) {
console.log(response.responseText);
}
});
});
</script>
<script>
function ConvertDouble() {
var param = $("#Fueling").val();
if (param.indexOf(".") != -1) {
param = param.replace(".", ",");
}
$("#Fueling").val(param);
}
</script>
}
Here is my full view code. I had to remove validation js because the fueling input, if I type for example 12,5 or 12.5 I got error message, so I removed it, and because of the Culture thing it's work with commas (I am from Hungary), and in the javascript I replace the dot with comma if the user type dot instead of comma.
You can add RegularExpression and ErrorMessage in your property to add rules and custom ErrorMessage
[Display(Name = "Tankolás")]
[RegularExpression(#"^[0-9]*$",ErrorMessage = "You can use numbers only")]
public double? Fueling { get; set; }
View
#section Scripts {
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}
I'm new to Asp .net core, I was trying to build form using CRUD opertaions.Since i'm trying to save the new data it redirecting to form action instead of homepage where my list is visible. I want my data to show on studentlist since im redirecting it to StudentList but this isnt happening. Look on the internet but couldn't find any relevant answer to it.
Form Page
After Saving the data
```Controller
using Microsoft.AspNetCore.Mvc;
using WebAppDotNetCoreCrudNew.Models;
namespace WebAppDotNetCoreCrudNew.Controllers
{
public class StudentController : Controller
{
private readonly StudentContext _Db;
public StudentController(StudentContext Db)
{
_Db = Db;
}
public IActionResult StudentList()
{
try
{
var stdList = from a in _Db.tbl_Student
join b in _Db.tbl_Department
on a.DepID equals
b.ID into Dep
from b in Dep.DefaultIfEmpty()
select new Student
{
ID = a.ID,
Name = a.Name,
Fname=a.Fname,
Mobile=a.Mobile,
Email=a.Email,
Description=a.Description,
DepID=a.DepID,
Department=b==null?"":b.Department
};
return View(stdList);
}
catch (Exception ex)
{
return View();
}
}
public IActionResult Create()
{
loadDDL();
return View();
}
[HttpPost]
public async Task<IActionResult> AddStudent(Student obj)
{
try
{
if(ModelState.IsValid)
{
if (obj.ID == 0)
{
_Db.tbl_Student.Add(obj);
await _Db.SaveChangesAsync();
}
return RedirectToAction("StudentList");
}
return View();
}
catch (Exception ex )
{
return RedirectToAction("StudentList");
}
}
private void loadDDL()
{
try
{
List<Departments> depList = new List<Departments>();
depList = _Db.tbl_Department.ToList();
depList.Insert(0, new Departments { ID = 0, Department = "Please Select" });
ViewBag.DepList = depList;
}
catch (Exception ex)
{
}
}
}
}
#model WebAppDotNetCoreCrudNew.Models.Student
#{
ViewData["Title"] = "Create";
}
<h1>Create</h1>
<hr />
<div class="row">
<div class="col-md-4">
<form asp-action="AddStudent">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<input type="hidden" asp-for="ID" />
<label asp-for="Name" class="control-label"></label>
<input asp-for="Name" class="form-control" />
<span asp-validation-for="Name" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Fname" class="control-label"></label>
<input asp-for="Fname" class="form-control" />
<span asp-validation-for="Fname" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Email" class="control-label"></label>
<input asp-for="Email" class="form-control" />
<span asp-validation-for="Email" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Mobile" class="control-label"></label>
<input asp-for="Mobile" class="form-control" />
<span asp-validation-for="Mobile" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Department" class="control-label"></label>
<select asp-for="DepID" class="form-control" asp-items="#(new SelectList(ViewBag.DepList,"ID","Department"))">
</select>
</div>
<div class="form-group">
<label asp-for="Description" class="control-label"></label>
<input asp-for="Description" class="form-control" />
<span asp-validation-for="Description" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Save" class="btn btn-primary" />
<a asp-action="StudentList" class="btn btn-outline-success">Student List</a>
</div>
</form>
</div>
</div>
#section Scripts {
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}
Problem: 1:
Have gone through your error. This is very obvious because the error clearly stated that it doesn't find the AddStudent view as it's not there.
How To Resolve:
As your student add view is named as create so your code should be as below:
[HttpPost]
public async Task<IActionResult> AddStudent(Student obj)
{
try
{
if (ModelState.IsValid)
{
if (obj.ID == 0)
{
_context.Students.Add(obj);
await _context.SaveChangesAsync();
}
return RedirectToAction("StudentList");
}
return RedirectToAction("Create");
}
catch (Exception ex)
{
return RedirectToAction("StudentList");
}
}
Note: You cannot write return View() as your student add view created as Create so after adding new student if you return just View() it will eventually encounter that error which you are currently encountering.
Problem: 2:
Another problem is your ModelState.IsValid in AddStudent(Student obj) will always be false as you have set <input type="hidden" asp-for="ID" /> in your view which doesn't make any sense. Because in AddStudent page (that is Create in your scenario) ID will always be 0 there's no point of set this as hidden which is set ModelState.IsValid value as false. So your code should be as below:
Create View:
#model WebAppDotNetCoreCrudNew.Models.Student
#{
ViewData["Title"] = "Create";
}
<hr />
<div class="row">
<div class="col-md-4">
<form asp-action="AddStudent">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<label asp-for="Name" class="control-label"></label>
<input asp-for="Name" class="form-control" />
<span asp-validation-for="Name" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Fname" class="control-label"></label>
<input asp-for="Fname" class="form-control" />
<span asp-validation-for="Fname" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Email" class="control-label"></label>
<input asp-for="Email" class="form-control" />
<span asp-validation-for="Email" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Mobile" class="control-label"></label>
<input asp-for="Mobile" class="form-control" />
<span asp-validation-for="Mobile" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Department" class="control-label"></label>
<select asp-for="DepID" class="form-control" asp-items="#(new SelectList(ViewBag.DepList,"ID","Department"))">
</select>
</div>
<div class="form-group">
<label asp-for="Description" class="control-label"></label>
<input asp-for="Description" class="form-control" />
<span asp-validation-for="Description" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Save" class="btn btn-primary" />
<a asp-action="StudentList" class="btn btn-outline-success">Student List</a>
</div>
</form>
</div>
</div>
#section Scripts {
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}
Controller:
[HttpPost]
public async Task<IActionResult> AddStudent(Student obj)
{
try
{
if (ModelState.IsValid)
{
if (obj.ID == 0)
{
_context.Students.Add(obj);
await _context.SaveChangesAsync();
}
return RedirectToAction("StudentList");
}
return RedirectToAction("Create");
}
catch (Exception ex)
{
return RedirectToAction("StudentList");
}
}
Output:
Just change the redirect to return View() under the Add Student action
[HttpPost]
public async Task<IActionResult> Create(Student obj) //change the name to create
{
try
{
if(ModelState.IsValid)
{
if (obj.ID == 0)
{
_Db.tbl_Student.Add(obj);
await _Db.SaveChangesAsync();
}
return View(obj); //If you want to display the data that you have save otherwise just put ---> return View();
}
return View();
}
catch (Exception ex )
{
return View(obj);
}
}
I have simple form for creating items
<form asp-action="CreateItem" enctype="multipart/form-data">
<div class="form-group">
<label asp-for="#Model.ItemPhoto" class="control-label"></label>
<input type="file" asp-for="#Model.ItemPhoto" name="Photo" class="form-control-file" />
<span asp-validation-for="#Model.ItemPhoto" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Name" class="control-label"></label>
<input asp-for="#Model.Name" class="form-control" />
<span asp-validation-for="#Model.Name" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.ItemType" class="control-label"></label>
<select asp-for="#Model.ItemType" class="form-control">
#foreach (var itemType in Enum.GetValues(typeof(RandApp.Enums.ItemType)))
{
<option value="#itemType.ToString()">#itemType</option>
}
</select>
<span asp-validation-for="#Model.ItemType" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.MaterialType" class="control-label"></label>
<select asp-for="#Model.MaterialType" class="form-control">
#foreach (var materialType in Enum.GetValues(typeof(RandApp.Enums.MaterialType)))
{
<option value="#materialType.ToString()">#materialType</option>
}
</select>
<span asp-validation-for="#Model.MaterialType" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Color" class="control-label"></label>
<select asp-for="#Model.Color" class="form-control">
#foreach (var color in Enum.GetValues(typeof(RandApp.Enums.ItemColor)))
{
<option value="#color.ToString()">#color</option>
}
</select>
<span asp-validation-for="#Model.Color" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Size" class="control-label"></label>
<select asp-for="#Model.Size" class="form-control">
#foreach (var size in Enum.GetValues(typeof(RandApp.Enums.ItemSize)))
{
<option value="#size.ToString()">#size</option>
}
</select>
<span asp-validation-for="#Model.Size" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.DesignedFor" class="control-label"></label>
<select asp-for="#Model.DesignedFor" class="form-control">
#foreach (var desigendFor in Enum.GetValues(typeof(RandApp.Enums.DesignedFor)))
{
<option value="#desigendFor.ToString()">#desigendFor</option>
}
</select>
<span asp-validation-for="#Model.DesignedFor" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Price" class="control-label"></label>
<input asp-for="#Model.Price" class="form-control" />
<span asp-validation-for="#Model.Price" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Description" class="control-label"></label>
<textarea asp-for="#Model.Description" class="form-control"></textarea>
<span asp-validation-for="#Model.Description" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</form>
there is its controller
public async Task<IActionResult> CreateItem(Item item, IFormFile Photo)
{
if (ModelState.IsValid)
{
var path = Path.Combine(_webHostEnvironment.WebRootPath, "assets", Photo.FileName);
var stream = new FileStream(path, FileMode.Create);
await Photo.CopyToAsync(stream);
item.ItemPhoto = Photo.FileName;
await _itemRepo.CreateAsync(item);
ViewBag.Item = item;
return RedirectToAction("ReadItems");
}
return View();
}
my goal is to get the path of chosen photo and save it in folder called "assets"(located in "wwwroot" folder).
The problem is that when i fill the fields and submitting the values, i get item.ItemPhoto value null and i can't enter in if statement. (see the photo down below).
[1]: https://i.stack.imgur.com/H2aLt.png
one solution i have found is to remove "enctype="multipart/form-data" from form and "name="Photo" tag helper from input
<form asp-action="CreateItem" enctype="multipart/form-data">
<div class="form-group">
<label asp-for="#Model.ItemPhoto" class="control-label"></label>
<input type="file" asp-for="#Model.ItemPhoto" name="Photo" class="form-control-file" />
<span asp-validation-for="#Model.ItemPhoto" class="text-danger"></span>
</div>
but in this case i can't get the path properly.
what can i do to solve this problem, why am i getting empty value from input?
File and string type cannot be passed together with the same name automatically and cannot achieve this requirement by using just one input. You can set a hidden input for ItemPhoto and use js to set the value when the file changed:
#model Item
<form asp-action="CreateItem" enctype="multipart/form-data">
<div class="form-group">
<label asp-for="#Model.ItemPhoto" class="control-label"></label>
//change here...
<input type="file" name="ItemPhoto" class="form-control-file" onchange="SetValue(this)" />
//add hidden input......
<input asp-for="#Model.ItemPhoto" hidden/>
<span asp-validation-for="#Model.ItemPhoto" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="#Model.Name" class="control-label"></label>
<input asp-for="#Model.Name" class="form-control" />
<span asp-validation-for="#Model.Name" class="text-danger"></span>
</div>
<input type="submit" value="Create"/>
</form>
#section Scripts
{
<script>
function SetValue(input) {
var fileName = input.files[0].name;
//asp-for will generate the id and name
//so you can get the selector by using $("#ItemPhoto")
$("#ItemPhoto").val(fileName);
}
</script>
}
Backend (The name attribute should always match with the parameter/property name):
public async Task<IActionResult> CreateItem(Item item, IFormFile ItemPhoto)
{
//....
return View();
}
How do I move data from an Iactionresult to another action result? I have been trying to display the data from the form and view it another Iactionresult? I attempt to use Tempdata but it seems like there is an error. Could anyone help me with it?
This action displays an individual product details when I click on an particular Id.
[HttpGet]
public IActionResult Details(int id)
{
string sql = String.Format(#"SELECT * FROM WBProduct
WHERE Id = {0}", id);
List<Product> lstProduct = DBUtl.GetList<Product>(sql);
if (lstProduct.Count == 0)
{
TempData["Message"] = $"Product #{id} not found";
TempData["MsgType"] = "warning";
return RedirectToAction("Index");
}
else
{
Product cdd = lstProduct[0];
return View(cdd);
}
}
I would like to display the the details of the product in this IActionResult
[HttpPost]
public IActionResult Create()
{
return View("Create");
}
View for Details:
#model Product
<div>
<div class="form-group row">
<div class="offset-sm-2"><h2>#Model.ProductName</h2></div>
</div>
<div class="form-group row">
<div class="offset-sm-2 col-sm-5">
<img id="ImgPhoto" src="~/images/product/#Model.ProductImage" style="width:400px;" />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="City">Weight: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductWeight" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Date">Stock :</label>
<div class="col-sm-5">
<input type="text" asp-for="ProductStock" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Cost">Price: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductPrice" asp-format="{0:C}" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Story">Description: </label>
<div class="col-sm-5">
<textarea asp-for="ProductDescription" rows="8" cols="20" class="form-control" readonly></textarea>
</div>
</div>
<div class="form-group row">
<a href="http://localhost:50528/Product/Create" class="btn btn-info" role="button" > Add to Cart </a>
</div>
</div>
Create View:
#model Product
<div class="form-group row">
<div class="offset-sm-2"><h2>#Model.ProductName</h2></div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="City">Weight: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductWeight" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Date">Stock :</label>
<div class="col-sm-5">
<input type="text" asp-for="ProductStock" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Cost">Price: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductPrice" asp-format="{0:C}" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="Story">Description: </label>
<div class="col-sm-5">
<textarea asp-for="ProductDescription" rows="8" cols="20" class="form-control" readonly></textarea>
</div>
</div>
The error message that I got was:
This should be a GET action, not a POST one, then you should extract the info from the TempData and pass it as parameter to the view cshtml.
TempData["Product"] = JsonConvert.SerializeObject(lstProduct[0]);
return RedirectToAction("Create");
Now you can deserialize in the Create action and retrieve your Product
[HttpGet]
public IActionResult Create()
{
// If the caller has prepared a product we can show it.
if(TempData.ContainsKey("Product"))
{
Product p = JsonConvert.DeserializeObject<Product>(TempData["Product"]);
return View(p);
}
else
return View();
}
If you want to move data from one action to another action in the same controller
just call one action from another and put data as an input parameter of another action.
To send message to Index action, at first create a class for the message:
public class ErrorMsg
{
public string Message {get; set;}
public string MessageType {get; set;}
}
Change your action Index to this:
public IActionResult Index(ErrorMsg errorMsg)
{
// if action called from another controller action, details for exapmple,
//errorMsg will contain data from that action
// otherwise errMsg will be an empty default object with empty strings
//Check if error
if(!string.IsNullOrEmpty(errorMsg.Message) ...your error code
else ....your index code here
}
Change your action details code:
public IActionResult Details(int id)
{
string sql = String.Format(#"SELECT * FROM WBProduct
WHERE Id = {0}", id);
List<Product> lstProduct = DBUtl.GetList<Product>(sql);
if (lstProduct.Count == 0)
{
var errMsg = new ErrMessage {
Message = $"Product #{id} not found",
MessageType = "warning"
}
return Index(errMsg);
}
else
{
Product cdd= lstProduct.FirstOrDefault();
//Or you can try again var cdd = lstProduct[0]; if you like it more
return View("Details", cdd);
}
}
Change your create action to this:
public IActionResult Create(Product product)
{
// if action called from another controller action, "product" will contain data //from that action
// otherwise "product" will be posted from the view or it will be an empty model with the default value fields
if(product.Id ==0) ... call add ef code
else ... call update ef code
}
And you have to add <form tag to all your views, othewise if will not post back any data, and add Product.Id hidden field inside of form:
#model Product
#using (Html.BeginForm("Create", "Product", FormMethod.Post)
{
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div>
<input type="hidden" asp-for="#Model.Id" />
<div class="form-group row">
<div class="offset-sm-2"><h2>#Model.ProductName</h2></div>
</div>
<div class="form-group row">
<div class="offset-sm-2 col-sm-5">
<img id="ImgPhoto" src="~/images/product/#Model.ProductImage" style="width:400px;" />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="City">Weight: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductWeight" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="ProductStock">Stock :</label>
<div class="col-sm-5">
<input type="text" asp-for="ProductStock" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="ProductPrice">Price: </label>
<div class="col-sm-5">
<input type="text" asp-for="ProductPrice" asp-format="{0:C}" class="form-control" readonly />
</div>
</div>
<div class="form-group row">
<label class="control-label col-sm-2" for="ProductDescription">Description: </label>
<div class="col-sm-5">
<textarea asp-for="ProductDescription" rows="8" cols="20" class="form-control" readonly></textarea>
</div>
</div>
<div class="form-group row">
<button class="btn btn-info btn-link" type="submit"> Add to Cart </button>
</div>
</div>
}
I'm doing insert via post, but my class is getting the zero values of the inputs.
The values of the inputs are passed via variable and corrections are displayed, but at the time of the post are coming down.
The most interesting thing is if you type inside the input, then the values come correctly.
<form method="post">
<div class="col-sm-3">
<label>SALDO</label>
<div style="border:1px solid #bbb9b9; border-radius:3px;"></div>
<br />
<div class="form-group">
<label asp-for="Caixas.ValorFinalDinheiro" class="control-label"></label>
<input asp-for="Caixas.ValorFinalDinheiro" name="Caixas.ValorFinalDinheiro" id="Caixas.ValorFinalDinheiro" class="form-control finalFundo" disabled="disabled" />
</div>
<div class="form-group">
<label asp-for="Caixas.ValorFinalCheque" class="control-label"></label>
<input asp-for="Caixas.ValorFinalCheque" class="form-control finalFundo" disabled="disabled"/>
</div>
<div class="form-group">
<label asp-for="Caixas.ValorFinalBoleto" class="control-label"></label>
<input asp-for="Caixas.ValorFinalBoleto" class="form-control finalFundo" disabled="disabled" />
</div>
<div class="form-group">
<label asp-for="Caixas.ValorFinalCartao" class="control-label"></label>
<input asp-for="Caixas.ValorFinalCartao" class="form-control finalFundo" disabled="disabled" />
</div>
<div class="form-group">
<label asp-for="Caixas.ValorFinalDeposito" class="control-label"></label>
<input asp-for="Caixas.ValorFinalDeposito" class="form-control finalFundo" disabled="disabled" />
</div>
<div class="form-group">
<label asp-for="Caixas.ValorFinal" class="control-label"></label>
<input asp-for="Caixas.ValorFinal" class="form-control" style="background-color:#9FF781" />
</div>
</div>
<div class="col-sm-12">
<div class="form-group">
<input type="submit" value="Confirmar o Fechamento do Caixa" class="btn btn-primary btn-sm" />
<a asp-page="Index" class="btn btn-success btn-sm">Retorna ao Caixa</a>
</div>
</div>
</form>
[BindProperty]
public Caixas Caixas { get; set; }
public async Task<IActionResult> OnPostAsync()
{
var C = _context.Caixas.Find(Caixas.Id);
C.fechado = true;
C.DataFinal = DateTime.Now;
C.HoraFinal = DateTime.Now;
C.FuncionarioFechamentoId = _userManager.GetUserId(HttpContext.User);
C.ValorFinalDinheiro = Caixas.ValorFinalDinheiro;
C.ValorFinalCheque = Caixas.ValorFinalCheque;
C.ValorFinalBoleto = Caixas.ValorFinalBoleto;
C.ValorFinalCartao = Caixas.ValorFinalCartao;
C.ValorFinalDeposito = Caixas.ValorFinalDeposito;
C.ValorFinal = Caixas.ValorFinal;
C.ValorSaida = Caixas.ValorSaida;
await _context.SaveChangesAsync();
return RedirectToPage("./Index");
}
Remove Caixas property and add it as parameter in your OnPostAsync method:
// [BindProperty]
// public Caixas Caixas { get; set; }
[HttpPost]
public async Task<IActionResult> OnPostAsync([FromBody]Caixas c)
{
// ...
}