I want to pass selected Drop down list value to Ajax Action Link which is I am using in Controller. Every time When I will change drop down list value. I want that respective value pass to the action link.
What I need to write here in Ajax Action Link ????
Drop Down List
<div class="form-group">
#Html.DropDownListFor(model => model.ComponentId, ((List<string>)ViewBag.Cdll).Select(model => new SelectListItem { Text = model, Value = model }), " -----Select Id----- ", new { onchange = "Action(this.value);", #class = "form-control" })
</div>
Ajax Action Link
<div data-toggle="collapse">
#Ajax.ActionLink("Accessory List", "_AccessoryList", new { ComponentId = ???? }, new AjaxOptions()
{
HttpMethod = "GET",
UpdateTargetId = "divacc",
InsertionMode = InsertionMode.Replace
})
</div>
Controller
public PartialViewResult _AccessoryList(string ComponentId)
{
List<ComponentModule> li = new List<ComponentModule>();
// Code
return PartialView("_AccessoryList", li);
}
Here is a new post. I do dropdowns a little different than you, so I am showing you how I do it. When you ask what to pass, I am showing you how to pass the dropdown for 'component' being passed. I also show how to pass from ajax back to the page.
Controller/Model:
//You can put this in a model folder
public class ViewModel
{
public ViewModel()
{
ComponentList = new List<SelectListItem>();
SelectListItem sli = new SelectListItem { Text = "component1", Value = "1" };
SelectListItem sli2 = new SelectListItem { Text = "component2", Value = "2" };
ComponentList.Add(sli);
ComponentList.Add(sli2);
}
public List<SelectListItem> ComponentList { get; set; }
public int ComponentId { get; set; }
}
public class PassDDLView
{
public string ddlValue { get; set; }
}
public class HomeController : Controller
{
[HttpPost]
public ActionResult PostDDL(PassDDLView passDDLView)
{
//put a breakpoint here to see the ddl value in passDDLView
ViewModel vm = new ViewModel();
return Json(new
{
Component = "AComponent"
}
, #"application/json");
}
public ActionResult IndexValid8()
{
ViewModel vm = new ViewModel();
return View(vm);
}
View:
#model Testy20161006.Controllers.ViewModel
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>IndexValid8</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script type="text/javascript">
$(function () {
$("#btnClick").click(function () {
var PassDDLView = { ddlValue: $("#passThis").val() };
$.ajax({
url: '#Url.Action("PostDDL")',
type: 'POST',
data: PassDDLView,
success: function (result) {
alert(result.Component);
},
error: function (result) {
alert('Error');
}
});
})
})
</script>
</head>
<body>
<div class="form-group">
#Html.DropDownListFor(m => m.ComponentId,
new SelectList(Model.ComponentList, "Value", "Text"), new { id = "passThis" })
<input type="button" id="btnClick" value="submitToAjax" />
</div>
</body>
</html>
Related
I try to send a list of object to controller but controller always receives it as null.
var model= #Html.Raw(Json.Encode(Model.MultipleElements));
jQuery.ajax({
type: 'GET',
contentType: 'application/json',
url: '#Url.Action("AddField", "Flux")',
data: model,
success: function (response) {
$(".destinationMultiple").html(response);
}
});
And here is my controller action
public PartialViewResult AddField(List<Destination> model)
{
return PartialView("_myPartialView");
}
You can use Ajax.Beginform. If you want you can do the following, which explains how to pass arrays from View to Controller.
View/Controller
namespace Testy20161006.Controllers
{
public class Destination
{
public string aDestination { get; set; }
}
public class TahtohViewModel
{
public List<Destination> MultipleElements { get; set; }
}
public class HomeController : Controller
{
[HttpPost]
public PartialViewResult AddField(List<Destination> MultipleElements)
{
List<String> sendout = new List<string>();
foreach (Destination dest in MultipleElements)
{
sendout.Add(dest.aDestination);
}
ViewBag.SendoutList = sendout;
return PartialView("_myPartialView");
}
public ActionResult Tut149()
{
Destination dest1 = new Destination { aDestination = "adest1" };
Destination dest2 = new Destination { aDestination = "adest2" };
Destination dest3 = new Destination { aDestination = "adest3" };
TahtohViewModel tahtoViewModel = new TahtohViewModel { MultipleElements = new List<Destination>() };
tahtoViewModel.MultipleElements.Add(dest1);
tahtoViewModel.MultipleElements.Add(dest2);
tahtoViewModel.MultipleElements.Add(dest3);
return View(tahtoViewModel);
}
View
#model Testy20161006.Controllers.TahtohViewModel
#using Testy20161006.Controllers
#{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Tut149</title>
<script type="text/javascript" language="javascript" src="https://code.jquery.com/jquery-3.3.1.js"></script>
<script type="text/javascript">
$(function () {
$("#theButton").click(function () {
var items = [];
var q = $("input[name='theElemsName']");
$.each(q, function (index, thevalue) {
var item = {};
item.aDestination = thevalue.value;
items.push(item);
});
jQuery.ajax({
type: 'POST',
contentType: 'application/json',
url: '#Url.Action("AddField", "Home")',
data: JSON.stringify(items),
success: function (response) {
//alert("success");
$(".destinationMultiple").html(response);
}
});
})
})
</script>
</head>
<body>
<div>
<table>
#{ var index = 0;}
#foreach (Destination item in Model.MultipleElements)
{
<tr><td>Item <span>#(index++)</span></td><td data-multipleelements="#(index)">#Html.TextBox(item.aDestination, null, new { Name = "theElemsName", Value = item.aDestination })</td></tr>
}
</table>
<input type="button" id="theButton" value="Add Field" />
<div class="destinationMultiple"></div>
</div>
</body>
</html>
Partial View
my partial view
#foreach (string item in ViewBag.SendoutList)
{
<div>#item</div>
}
I have a single page UI, which looks like below .
on the UI there are two checkboxes, when user toggle the states of checkbox, I use ajax to post the status to HomeController in a POST action.
after updated the model in POST action with the new checkboxes states, I redirect back to GET action to return a view.
however, the UI does not refresh with the new model.
can someone help on this ? thanks.
Views/Home/Index.cshtml
#{
Layout = "_Layout";
}
#model WebApplication5.Controllers.HomeModel;
<h1>STS</h1>
<div>
<input type="checkbox" id="UseVersionCheckBox" />Use version v1 in url
</div>
<br />
<div>
<input type="checkbox" id="ResponseTypeTokenCheckBox" /> Return access token in url
</div>
<div>your check status : #Model.IsChecked</div>
<br />
<div>your text : #Model.Text </div>
_Layout.cshtml
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>#ViewData["Title"] - WebApplication5</title>
</head>
<body>
#RenderBody()
<script src="~/jquery-2.1.0.min.js"></script>
#RenderSection("Scripts", required: false)
<script type="text/javascript">
$(document).ready(function () {
function fun() {
var current = $("#UseVersionCheckBox").prop("checked");
var current2 = $("#ResponseTypeTokenCheckBox").prop("checked");
alert("values as:" + current + "," + current2);
var json = {};
json.UseVersionChecked = current;
json.ResponseTypeTokenChecked = current2;
var text = JSON.stringify(json);
$.ajax({
type: "POST",
url: "Home/Index",
data: text,
dataType: 'json',
contentType: 'application/json; charset=utf-8',
error: function (r, s, e) {
},
success: function (r) {
},
complete: function () {
}
});
}
$("#UseVersionCheckBox").click(fun);
$("#ResponseTypeTokenCheckBox").click(fun);
});
</script>
</body>
</html>
HomeController.cs
public class HomeController : Controller
{
public HomeController()
{
}
public IActionResult Index()
{
HomeModel model;
if (TempData.ContainsKey("model"))
{
var newmodel = JsonConvert.DeserializeObject<HomeModel>(TempData["model"].ToString());
model = newmodel;
}
else
{
model = new HomeModel();
model.IsChecked = false;
model.Text = "not checked";
}
ModelState.Clear();
return View(model);
}
[HttpPost]
public IActionResult Index([FromBody] CheckStatus status)
{
HomeModel model = new HomeModel();
model.IsChecked = true;
model.Text = "UseVersionCheckBox : " + status.UseVersionChecked + " ; ResponseTypeTokenCheckbox : " + status.ResponseTypeTokenChecked;
if (TempData.ContainsKey("model"))
TempData.Remove("model");
TempData.Add("model", JsonConvert.SerializeObject(model));
ModelState.Clear();
return RedirectToAction("Index", "Home");
}
}
[Serializable]
public class HomeModel
{
public bool IsChecked { get; set; }
public string Text { get; set; }
}
public class CheckStatus
{
public bool UseVersionChecked { get; set; }
public bool ResponseTypeTokenChecked { get; set; }
}
weird thing , after checked the response of redirect to GET action, the new value is there ,but web page in browser still show old. why ?
I am using #Ajax.Beginform in my View which is tightly bound to the ViewModel.
I've #Html.ListBoxFor inside my form. I add and delete items from the listbox using jQuery. Now what I am want to achieve is that onpress of the submit button, it should send full data present in the listbox regardless of which are selected. Currently it sends the list to controller if I select all the item in the listbox and press submit button. But I don't want to do that. Any idea as to how to achieve this?
Can it be sent as a form parameter.
#using (Ajax.BeginForm("SaveTextComponent", "LoanFilterEditor", new{ param1 = Model.listBoxItem}, new AjaxOptions { HttpMethod = "POST", OnSuccess = "SUCCESS" }))
I try to accept the parameter in the controller like this
public ActionResult SaveTextComponent(TextComponentViewModel model, List<SelectListItem> list)
{
}
But list is null.. Please help.
Maybe you can use this javascript to select all items at your listbox and then, send it to controller:
function listbox_selectall(listID, isSelect) {
var listbox = document.getElementById(listID);
for(var count=0; count < listbox.options.length; count++) {
listbox.options[count].selected = isSelect;
}
}
And after that, you can call the function on your form in this way:
<script>
function submit() {
listbox_selectall('righthand_side_listbox_id', true);
return true;
}
</script>
<form onsubmit="return submit()">
...
</form>
Credits to Viral Patel blog
You can follow my example:
Model:
pulic class TextComponentViewModel {
public int[] SelectedListItem { get; set; }
public List<Item> ListItem { get; set; }
}
public class Item {
public int Id { get; set; }
public String Name { get; set; }
}
View:
#model TextComponentViewModel
#using (Ajax.BeginForm("SaveTextComponent", "LoanFilterEditor", null, new AjaxOptions { HttpMethod = "POST", OnSuccess = "SUCCESS" }, new {name = "mainForm", id = "mainForm"}))
{
#Html.ListBoxFor(model => model.SelectedListItem , new MultiSelectList(Model.ListItem, "ID", "Name"))
for(var i = 0; i < Model.ListItem.Count();i++ )
{
#Html.HiddenFor(m => m.ListItem[i].Id)
#Html.HiddenFor(m => m.ListItem[i].Name)
}
<input type = "submit" id="submitButton" />
}
Controller:
public ActionResult SaveTextComponent(TextComponentViewModel model)
{
}
Script:
$("#submitButton").click(function(){
$("#mainForm").submit();
});
HI all i have some images which i am retrieving dynamically and displaying in a view like this
here is my controller
private ProductEntities products = new ProductEntities();
public List<ProductItems> GetAllProducts()
{
var items = new List<ProductItems>();
var records = products.Products.ToList();
foreach (var item in records)
{
ProductItems model = new ProductItems();
model.ProductID = item.ProductId;
model.ProductName = item.ProductName;
model.ImageURL = item.ImageURL;
items.Add(model);
}
return items;
}
and this is my index page view
<script type="text/javascript">
$(document).ready(function () {
$.getJSON("/api/ProductDetails", function (data) {
$.each(data, function (idx, ele) {
$("<img/>").attr({ src: ele.ImageURL }).appendTo("#makeMeScrollable");
$("#makeMeScrollable").append('<h4>' + ele.ProductName + '</h4>');
});
});
});
</script>
</head>
<body>
<h1>Products</h1>
<div class="rightsection_main">
<div class="img_main" id="makeMeScrollable">
</div>
</div>
</body>
now what i want is when ever an user clicks on a image i have to pass the ID of the image to my method in my apicontroller and i have to display that image in another view ..how do i pass my image to another view and Id to my api/controller action
i have to pass my ProductID to this method
public IEnumerable<ProductItems> ProductDeatils(long ProductID)
{
var productdeatils = products.ExecuteStoreQuery<ProductItems>("GetProductDetail #ProductID ", new SqlParameter("#ProductID", ProductID));
return productdeatils ;
}
The thing is that API actions do not return views. They are used to serialize models using some format such as JSON or XML. So when you are saying that you want to use the ProductDeatils API action to display a view, this doesn't make much sense. Views are returned by standard ASP.NET MVC controller actions returning ActionResults. So let's see how to set this up.
Let's suppose that you have the following API controllers:
public class ProductsController : ApiController
{
private ProductEntities products = new ProductEntities();
public IEnumerable<ProductItems> Get()
{
return products.Products.ToList().Select(item => new ProductItems
{
ProductID = item.ProductId,
ProductName = item.ProductName,
ImageURL = item.ImageURL
});
}
}
public class ProductDetailsController : ApiController
{
private ProductEntities products = new ProductEntities();
public ProductItems Get(long id)
{
return products.ExecuteStoreQuery<ProductItems>(
"GetProductDetail #ProductID ",
new SqlParameter("#ProductID", id)
);
}
}
Alright, now we will need standard ASP.NET MVC controller that will serve the views:
public class HomeController : Controller
{
public ActionResult Products()
{
return View();
}
public ActionResult ProductDetail(long id)
{
using (var client = new HttpClient())
{
var productDetailUrl = Url.RouteUrl(
"DefaultApi",
new { httproute = "", controller = "productdetails", id = id },
Request.Url.Scheme
);
var model = client
.GetAsync(productDetailUrl)
.Result
.Content
.ReadAsAsync<ProductItems>()
.Result;
return View(model);
}
}
}
and the respective view for showing the list of products and the detail of a product when a link is clicked:
~/Views/Home/Products.cshtml:
#{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
</head>
<body>
<h1>Products</h1>
<div class="rightsection_main">
<div class="img_main" id="makeMeScrollable">
</div>
</div>
<script type="text/javascript" src="~/scripts/jquery-1.8.2.js"></script>
<script type="text/javascript">
var productsUrl = '#Url.RouteUrl("DefaultApi", new { httproute = "", controller = "products" })';
var productDetailUrl = '#Url.Action("productdetail", "home", new { id = "__id__" })';
$.getJSON(productsUrl, function (data) {
$.each(data, function (idx, product) {
$('<img/>').attr({ src: product.ImageURL }).appendTo('#makeMeScrollable');
$('#makeMeScrollable').append(
$('<h4/>').html(
$('<a/>', {
href: productDetailUrl.replace('__id__', product.ProductID),
text: product.ProductName
})
)
);
});
});
</script>
</body>
</html>
and ~/Views/Home/ProductDetail.cshtml:
#model ProductItems
#{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>ProductDetail</title>
</head>
<body>
<h4>#Html.DisplayFor(x => x.ProductName)</h4>
<img src="#Model.ImageURL">
</body>
</html>
I have a partial view where I am showing a web grid depending upon a value selected from a page.
For drop down I have used
#Html.DropDownListFor(
x => x.ItemId,
new SelectList(Model.Items, "Value", "Text"),
new {
id = "myddl",
data_url = Url.Action("Foo", "SomeController")
}
)
For drop down item select I have used
$(function() {
$('#myddl').change(function() {
var url = $(this).data('url');
var value = $(this).val();
$('#result').load(url, { value: value })
});
});
and below is my action
public ActionResult Foo(string value)
{
SomeModel model = ...
return PartialView(model);
}
everything works good, but when I try doing a paging or sorting on my webgrid which is on my partial view I am showing a new window with the web grid.
I wanted to be able to sort and page on the same page without postback
Please help
The following example works fine for me.
Model:
public class MyViewModel
{
public string Bar { get; set; }
}
Controller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
public ActionResult Foo(string value)
{
var model = Enumerable.Range(1, 45).Select(x => new MyViewModel
{
Bar = "bar " + value + " " + x
});
return PartialView(model);
}
}
Index.cshtml view:
<script type="text/javascript">
$(function () {
$('#myddl').change(function () {
var url = $(this).data('url');
var value = $(this).val();
$.ajax({
url: url,
type: 'GET',
cache: false,
data: { value: value },
success: function (result) {
$('#result').html(result);
}
});
});
});
</script>
#Html.DropDownList(
"id",
new[] {
new SelectListItem { Value = "val1", Text = "value 1" },
new SelectListItem { Value = "val2", Text = "value 2" },
new SelectListItem { Value = "val3", Text = "value 3" },
},
new {
id = "myddl",
data_url = Url.Action("Foo", "Home")
}
)
<div id="result">
#Html.Action("Foo")
</div>
Foo.cshtml partial:
#model IEnumerable<MyViewModel>
#{
var grid = new WebGrid(
canPage: true,
rowsPerPage: 10,
canSort: true,
ajaxUpdateContainerId: "grid"
);
grid.Bind(Model, rowCount: Model.Count());
grid.Pager(WebGridPagerModes.All);
}
#grid.GetHtml(
htmlAttributes: new { id = "grid" },
columns: grid.Columns(
grid.Column("Bar")
)
)
Notice that I have used a GET request to refresh the grid instead of POST because this way the value query string parameter selected in the dropdown is preserved for future sorting and paging.