将数量更改为0后，视图未正确刷新 [英] View is not refreshing correctly after I changed the quantity to 0
本文介绍了将数量更改为0后，视图未正确刷新的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我将物品的数量更改为0后，我的屏幕无法完全刷新。
现在输出
I have trouble to have my screen perfectly refresh after I changed the quantity to 0 for an item.
Output now
Cart
Baseball Bat has been remove from the cart
Payment >>
-----------
Add another article >>
----------------------
Product Price Quantity
Oil Castrol 25.00 2 Update Quantity >> Remove from Cart >>
------------------ -------------------
Baseball Bat 79.99 0 Update Quantity >> Remove from Cart >>
------------------ -------------------
Total 50.00
预期产量
Expected output
Cart
Baseball Bat has been remove from the cart
Payment >>
-----------
Add another article >>
----------------------
Product Price Quantity
Oil Castrol 25.00 2 Update Quantity >> Remove from Cart >>
------------------ -------------------
Total 50.00
index.cshtml
index.cshtml
@model WebStore.ViewModels.ShoppingCartViewModel
@{
ViewBag.Title = "Shopping Cart";
}
@using (Html.BeginForm())
{
<h3>
Cart :
@if (TempData["err_message"] != null)
{
@TempData["err_message"]
}
</h3>
<script src="/Scripts/jquery-1.8.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('.RemoveLink').click(function () {
$.ajax({
url: '@Url.Action("RemoveFromCart","Cart")',
data: { id: $(this).data('id') },
type: 'POST',
cache: false,
success: function (result) {
$('#row-' + result.DeleteId).remove();
$('#row-' + result.DeleteId).fadeOut('slow');
$('#cart-status').text('Cart (' + result.CartCount + ')');
$('#update-message').text(result.Message);
$('#cart-total').text(result.CartTotal);
$.get('@Url.Action("CartSummary", "Cart")');
$('#content').html(result);
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("Status: " + textStatus); alert("Error: " + errorThrown);
}
});
return false;
});
});
$(function () {
$(".RefreshQuantity").click(function () {
// Get the id from the link
var recordToUpdate = $(this).attr("data-id");
var countToUpdate = 0;
if ($("#" + $(this).attr("id")).val() !== '') {
countToUpdate = $("#" + $(this).attr("id")).val();
}
if (recordToUpdate != '') {
// Perform the ajax post
$.post("/Cart/UpdateCartCount", { "id": recordToUpdate, "cartCount":
countToUpdate },
function (data) {
// Successful requests get here
// Update the page elements
if (data.ItemCount == 0) {
$('#row-' + data. DeleteId).fadeOut('slow');
}
$('#update-message').text(htmlDecode(data.Message));
$('#cart-total').text(data.CartTotal);
$('#cart-status').text('Cart (' + data.CartCount + ')');
//Only process the callback data when no server error occurs
if (data.ItemCount != -1) {
$('#cart-total').text(data.CartTotal);
$('#cart-status').text('Cart (' + data.CartCount + ')');
}
}
);
}
});
});
$(function () {
if (typeof String.prototype.trim !== 'function') {
String.prototype.trim = function () {
return this.replace(/^\s+|\s+$/g, '');
}
}
});
function clearUpdateMessage() {
// Reset update-message area
$('#update-message').text('');
}
function htmlDecode(value) {
if (value) {
return $('<div />').html(value).text();
}
else {
return '';
}
}
</script>
<div>
@for (int i = 0; i < Model.CartItems.Count; i++)
{
<p>
@Html.ValidationMessageFor(model => model.CartItems[i].Quantity)
</p>
}
</div>
<div id="update-message" style="color:red;" >
</div>
<div id="content">
@if (Model.CartTotal != 0)
{
<p class="button">
@Html.ActionLink("Payment >>", "AddressAndPayment", "Checkout")
</p>
<p class="AddNewItem">
@Html.ActionLink("Add another item >>", "Store", "Home")
</p>
}
<table>
<tr>
<th>
Product
</th>
<th>
Price
</th>
<th>
Quantity
</th>
<th></th>
</tr>
@{int ix = 0;}
@foreach (var item in Model.CartItems)
{
<tr id="row-@item.ProductId">
<td>
@Html.ActionLink(item.Product.Description, "Details", "Product", new { id =
item.ProductId }, null)
</td>
<td>
@item.Product.Price
</td>
<td>
@Html.TextBoxFor(model => model.CartItems[ix].Quantity,
new {style = "width:30px; text-align:right;",
onkeyup = "clearUpdateMessage();",
onchange = "clearUpdateMessage();"
})
</td>
<td style="width: 200px">
<a href="#" class="RefreshQuantity" data-id="@item.CartId"
id="CartItems_@(ix)__Quantity> Update Quantity >> <a />
</td>
<td style ="width: 200px">
<a href="#" class="RemoveLink" data-id="@item.CartId"> Remove from Cart >>
</a>
</td>
</tr>
ix++;
}
<tr>
<td>
Total
</td>
<td></td>
<td></td>
<td id="cart-total">
@Model.CartTotal
</td>
</tr>
</table>
</div>
CartControler.cs
CartControler.cs
{
/* RedirectToAction("Panier/RemoveFromCart", new { id = id }); */
/* return RedirectToAction ("Cart/RemoveFromCart", new { id = id }); */
int itemCount = cart.RemoveFromCart(id);
results = new ShoppingCartRemoveViewModel
{
Message = Server.HtmlEncode(productName) + " has been removed from your
Cart.",
CartTotal = cart.GetTotal(),
CartCount = cart.GetCount()
};
}
}
catch
{
results = new ShoppingCartRemoveViewModel
{
Message = "error with the data...",
CartTotal = -1,
CartCount = -1,
ItemCount = -1,
DeleteId = id
};
}
return Json(results);
ShoppingCart.cs
ShoppingCart.cs
public int GetCount()
{
// Get the count of each item in the cart and sum them up
int? count = (from cartItems in db.Paniers
where cartItems.CartId == ShoppingCartId
select (int?)cartItems.Quantite).Sum();
// Return 0 if all entries are null
return count ?? 0;
}
public decimal GetTotal()
{
// Multiply album price by count of that album to get
// the current price for each of those albums in the cart
// sum all album price totals to get the cart total
decimal? total = (from cartItems in db.Paniers
where cartItems.CartId == ShoppingCartId
select (int?)cartItems .Quantite *
cartItems.Produit.Prix).Sum();
return total ?? decimal.Zero;
}
public int UpdateCartCount(int id, int cartCount)
{
// Get the cart
var cartItem = db.Paniers.Single(
cart => cart.CartId == ShoppingCartId
&& cart.PanierId == id);
int itemCount = 0;
if (cartItem != null)
{
if (cartCount > 0)
{
cartItem.Quantite = cartCount;
itemCount = cartItem.Quantite;
}
else
{
db.Paniers.Remove(cartItem);
}
// Save changes
db.SaveChanges();
}
return itemCount;
}
推荐答案
（function（）{
(function () {
（ ' 。RemoveLink'）。click（function（）{
('.RemoveLink').click(function () {
.ajax（{
url：' @ Url.Action（RemoveFromCart，Cart）' ，
数据：{id：
.ajax({ url: '@Url.Action("RemoveFromCart","Cart")', data: { id:
这篇关于将数量更改为0后，视图未正确刷新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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