Hi Folks i am retrieving Name from database to drop down list. Now i want to display the selected value from DropDown in a page. My code is like follows to retrieve data,am using Fluent data as a framework.
My Controller Action is
var query = Abc.GetProducts();
ViewBag.EnterpriseId = new SelectList(query.AsEnumerable(), "EnterpriseId", "Name");
return View();
My view is ,
#Html.DropDownList("EnterpriseID", (SelectList) ViewBag.EnterpriseID, "--Select Resource--")
You can use a simple js for this:
elem = $('.selectClass');
options = elem.find('option[value="'+DataFromDBHere+'"]');
if(options){
options.prop('selected', 'selected');
}
Related
I can't figure out how to determine which item is selected in the my kendo dropdownlist. My view defines it's model as:
#model KendoApp.Models.SelectorViewModel
The ViewModel is defined as:
public class SelectorViewModel
{
//I want to set this to the selected item in the view
//And use it to set the initial item in the DropDownList
public int EncSelected { get; set; }
//contains the list if items for the DropDownList
//SelectionTypes contains an ID and Description
public IEnumerable<SelectionTypes> ENCTypes
}
and in My view I have:
#(Html.Kendo().DropDownList()
.Name("EncounterTypes")
.DataTextField("Description")
.DataValueField("ID")
.BindTo(Model.ENCTypes)
.SelectedIndex(Model.EncSelected)
)
This DropDownList contains the values I expect but I need to pass the selected value back to my controller when the user clicks the submit button. Everything works fine except I don't have access to which item was selected from the controller's [HttpPost] action. So, how do i assign the DropDownList's value to a hidden form field so it will be available to the controller?
For anyone who found this wondering how to get the selected value in JavaScript, this is the correct answer:
$("#EncounterTypes").data("kendoDropDownList").value();
From the documentation: http://docs.telerik.com/kendo-ui/api/javascript/ui/dropdownlist#methods-value
when select a value from a dropdown list, and in the selec event , we can get the selected value as following ,
#(Html.Kendo().DropDownList()
.Name("booksDropDown")
.HtmlAttributes(new { style = "width:37%" })
.DataTextField("BookName")
.DataValueField("BookId")
.Events(x => x.Select("onSelectBookValue"))
.DataSource(datasource => datasource.Read(action => action.Action("ReadBookDropDow", "PlanningBook").Type(HttpVerbs.Get)))
.OptionLabel("Select"))
javascript function like following ,
function onSelectBookValue(e) {
var dataItem = this.dataItem(e.item.index());
var bookId = dataItem.BookId;
//other user code
}
I believe this will help someone
Thanks
Hello I was just going through this problem,kept on searching for 2 hours and came up with a solution of my own.
So here is the line to fetch any data bidden to the kendo drop down.
$("#customers").data("kendoDropDownList").dataSource._data[$("#customers").data("kendoDropDownList").selectedIndex].colour;
Just change the id customers to the id you have given tot he kendo drop down.
Maybe you should be using the DropDownListFor construct of the Kendo DropDownList like so in your view:
#(Html.Kendo().DropDownListFor(m => m.EncSelected)
.Name("EncounterTypes")
.DataTextField("Description")
.DataValueField("ID")
.BindTo(Model.ENCTypes)
.SelectedIndex(Model.EncSelected)
)
This way, when you submit, it will be availble on the POST request and you won't need to put an hidden field anywhere.
BUT should you need to use the hidden field for some reason, put it there, subscribe the the select event of the dropdown list and put using JQuery (for instance) put the selected item on the hidden field.
It's your choice :)
If you want to read also out the text of the dropdown, you can get or set the value by using the following kendo function:
$('#EncounterTypes').data("kendoDropDownList").text();
REFERENCE TO THE DOCUMENTATION
Using this .val() as #Vivek Parekh mentions will not work - there is no function .val() in the kendo framework.
If you want you could use jQuery and get the value back: $('#EncounterTypes').val()
Updated DEMO
$("#EncounterTypes").kendoDropDownList().val();
You can get the selected item like following code and then use item.property to get further information
var selectedFooType = $("#fooType").data("kendoDropDownList").dataItem();
selectedFooType.name
//OR
selectedFooType.id
I have an update page, there is a field call ingredientname, the dropdown lists all the ingredients, but how do I bind the value stored against in each ingredient for a recipe.
In my controller I have the following code which will list all ingredients in dropdown;
foreach (RecipeIngredient recipeIngredient in recipe.RecipeIngredientList)
{
rIngredients.Add(recipeIngredient);
}
on the update page I want the text box to show a value.
<%: Html.DropDownList("BusinessTypeId", new SelectList(Model.BusinessTypes, "BusinessTypeId", "BusinessTypeName"), "Select an Option")%>
Here the value is BusinessTypeId and name is BusinessTypeName
foreach (BusinessType businessType in _businessDetails.BusinessTypes)
{
businessType.BusinessTypeName = businessType.SpanishBusinessTypeName;
businessTypeLst.Add(businessType);
}
//Page
var _ddValue = $('#BusinessTypeId').val();
assign it to textbox
$('#txtboxId').val(_ddValue );
I have following code
#using (Html.BeginForm())
{
#Html.DropDownListFor(m => m.IDs, new SelectList(Model. IDs), Model.SelectedID)
}
So user selection from this combo bind to SelectedID property of the model. My understanding is that this binding happen only when form is submitted. Let’s say from the same page, I need to do an AJAX call but at this point ) Model.SelectedID does not provide any value because form hasn’t been submitted yet (although user has selected something from drop down). Any ideas how to best deal with this situation?
You can use javascript.
var selectedValue = $("#IDs").val();
bind a change event to your DD
$("#DDL_ID").change(function(){
var currVal = $(this).val();
//do ajax
});
As others have pointed you would get this value with javascript on the change of the drop down list.
I wanted to point out however, that your understanding of the overload you are using for the drop down list is incorrect. This overload will display a default option box label.
For example you could prompt the users to select select something from the list:
#Html.DropDownListFor(m => m.IDs, new SelectList(Model. IDs), "Select Something...")
If you were to post the form in your example as is, you can see the selected item come across in the form. If your view model is setup in such a fashion the model binder would take over and bind this value to your "SelectedID" property.
[HttpPost]
public string DropDown(FormCollection form)
{
var selectedItem = form["IDs"];
return selectedItem;
}
I've got a view that displays a list of items. Rather than display items in a grid, I'd like to display 4 items per page, each with an image and multiple properties, displayed in a unique layout.
So, I'd like a foreach to iterate through the items, and each item to get displayed in a div. I could put all the code in the loop, but I'd like to have a custom html helper extension to do this.
I came up with this,
public static MvcHtmlString DisplayViewerFor(this HtmlHelper helper, TestModel model, bool rightAligned = true) {
if (model == null) {
model = new TestModel();
}
var outterDiv = new TagBuilder("div");
outterDiv.AddCssClass(rightAligned ? "item-display-right" : "item-display");
var image = new TagBuilder("image");
image.Attributes.Add("src", "Item/GetImage/" + model.ItemName);
image.Attributes.Add("height", "150");
var editorLabel = new TagBuilder("div");
editorLabel.AddCssClass("editor-label");
//LOOKING TO ADD CODE LIKE THIS HERE
var labelContent= html.LabelFor({my model property here})
editorLabel.InnerHtml += labelContent;
//END OF ADD
return new MvcHtmlString(outterDiv.ToString(TagRenderMode.EndTag));
}
In my method above, I need to display a few more values, and I would like to use the Html.LabelFor and Html.DisplayFor helpers, but the methods aren't available and I'm not sure what to pass to them if they were.
I'm not sure if this is possible or not, but I thought I would ask.
EDIT
I'm trying to use the html.LabelFor. See my code where I have updated it above, adding to it these two lines.
var labelContent= html.LabelFor({my model property here})
editorLabel.InnerHtml += labelContent;
You can see the code above.
EDIT 2
Here is the planned use for this Helper with dummied down view.
#model TestItemDisplayList
#{
ViewBag.Title = "Items";
Layout = "~/Views/Shared/_Layout.cshtml";
}
#foreach(var item in #model.Items){
#Html.DisplayViewerFor(item)
}
You can use the Html.DisplayFor method to render a DisplayTemplate. One of the over loads for the method is to specify a template to use. You can modify your page code to read:
Page:
#model TestItemDisplayList
#{ ViewBag.Title = "Items"; Layout = "~/Views/Shared/_Layout.cshtml"; }
#Html.DisplayFor(model => Model,"TestItemDisplayList")
Display Template for TestItemDisplayList
#model TestItemDisplayList
#* You could limit this loop to the first 4 items *#
#foreach(var item in model.Items){ #Html.DisplayFor(item => item) }
Display Template for TestModel
#model TestModel
<div class="item-display">
<img src="#Url.Action("GetImage", "Image", new { id = Model.ItemName})" height="150"/>
<div class="editor-label">#Html.LabelFor(model => model.PropertyHere)</div>
</div>
I assume that your URL for the image used the default route of {controller}/{action}/{id} so I used the Url.Action and specified your ID.
You could also get away witout using a DisplayTemplate for "TestItemDisplayList" and moving that code in to your page but I wasn't clear if you wanted to add logic in that to limit the number of pages.
I have the dropdowns in my Create() View working perfect.
But in the Edit() View I can't get the Data that was submited during the Create() to show up in DropDowns with the Value enterened upon Create()
I just have textboxs in place at the moment And would really like to have Data Represented in a dropdown for easy selection.
Here is one example:
Create() View - One dropdown is for EmployeeTypes, and stores selected to EmployeeTypeId
Now How do I get that to show up in the Edit() View as the same dropdown, but with Value of EmployeeId already selected?
I have a EmployeeViewModel for the Create() View
But I am just passing the model directly into the Edit() View
Should I create some kind of Employee "partial class" for the Edit() View? to handle the IEnumerable Lists?
and set:
var employeeTypes = context.EmployeeTypes.Select(et => new SelectListItem
{
Value = et.EmployeeTypeId.ToString(),
Text = et.Type.ToString()
});
Or should I pass them in as ViewData?
If so how to do you pass a List in as ViewData and get it to display as an #Html.DropDownList with the Value passed in from the #Model as the defualt value?
I ended up implimenting this way, and it worked like a dream.
Controller Code:
SelectList typelist = new SelectList(context.CompanyType.ToList(), "CompanyTypeId", "Type", context.CompanyType);
ViewData["CompanyTypes"] = typelist;
View Code:
#Html.DropDownList("CompanyTypeId", (IEnumerable<SelectListItem>) ViewData["CompanyTypes"])
There may be bugs in this code - I haven't tested it - but what you basically want to do is:
var etId = ??? // EmployeeTypeId from your model
var employeeTypes = context.EmployeeTypes.Select(et => new SelectListItem
{
Value = et.EmployeeTypeId.ToString(),
Text = et.Type.ToString(),
Selected = et.EmployeeTypeId == etId
});
ViewData["EmployeeTypeList"] = employeeTypes.ToList();
Then in your view you can do
#Html.DropDownList("EmployeeType", ViewData["EmployeeTypeList"])