How To Get ID Of EditorFor With Nested Viewmodels In Mvc 2
Mar 30, 2010
So I have two nested view models, CreditCard -> BillAddress. I have a view, "EditBilling", that has EditorFor(CreditCard). The CreditCard EditorTemplate has EditorFor(BillAddress), and the BillAddress EditorTemplate has EditorFor(BillState).
The end result is a select list with id "CreditCard_BillAddress_BillState".
I need to reference this in javascript, thus need to know the ID. In other situations, with non-nested ViewModels, I have used the following code:
$('#<%= ViewData.ModelMetadata.PropertyName %>_BillState')
The problem here is that the ModelMetadata.PropertyName property is only aware of the current property, not the parent(s). So I end up with the following:
$('#BillAddress_BillState')
How does one go about getting the client ID of nested strongly typed helpers?
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Mar 24, 2011
I am Francesco and I am newbie. I have a problem with ASP.NET MVC3 regarding the data posted between View and Controller. My goal is to use a form to edit a specific record from my database and then post it back to the controller, which is in charge of checking the record's fields and submit them into the database.
The data are passed from the Controller to the View by using a ViewModel and therefore the DefaultDataBinding does not apply in this case. I tried many approaches, I monitored the communication with Fiddler but I couldn't solve my problem. The method described by Phil Haack does not work and neither does the FormCollection.
Here you have the code:
ViewModels: I pass it to the View to create a table. Name and the list of Item names (table columns headers) are just to be displayed. I want to have back the Id, the Month (they are passed correctly as parameters and represents table row headers) and most important the ActualValue of the Items and their Id (I have an association table in my database with Id, Itemid and Month as keys)
[Code]....
View: The View is strongly typed as ViewModels.EditViewModel and sends the fields through a submit button. I have to generate a table by using foreach loops, because I do not know how many items there are in advance
Controller: The controller has to update each kpi passed from the view related to a specific Id and Month.
[HttpPost]
public ActionResult EditMonth(int Id, int Month, //FormCollection kpiValues)
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Aug 15, 2010
I've been trying to something with the templating system in MVC2, but what I thought should be simple has not been successful. So now I question if it's possible or if I'm missing anything obvious. The scenario:
I have a base template as a strongly typed view that is set up in the ViewsSharedEditorTemplates folder...call it CommonItem.ascx. It wants a model item of type MyItemType.
I have a template that is a wrapper around the previous template, is also strongly typed of type MyItemType, residing in the same folder. Call this one CommonItemWrapper.ascx.The contents of CommonItemWrapper.ascx includes divs before/after a declaration Html.EditorForModel("CommonItem").
My expectation would be that the inner template (CommonItem) would be displayed within the outer template. Unfortunately the inner template never gets evaluated.
Am I missing something? Am I mistaken in thinking that templates can be nested in this manner? If so, is there another means to accomplish this?
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Apr 28, 2010
Previously to learning about ViewModels and AutoMapper, my infrastructure project had the following classes defined:
Csharp Code:
[code]....
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Nov 25, 2010
I have a question regarding the duplication of properties within view models. For my Search View i have a viewmodel that looks like this
public class SearchModel
{
public IEnumerable<SelectListItem> Genders {get;set;}
... other select lists
// Worker Details
public string FirstName {get;set;}
public string LastName {get;set;}
public DateTime Birthdate {get;set;}
public int Phone {get;set;}et
public string Gender {get; set;}
//Address Details
public string Street {get;set;}
public string City {get;set;}
public string Zip {get; set;}
}
For my Input View i have the following View Model
public IEnumerable<SelectListItem> Genders {get;set;}
public IEnumerable<SelectListItem> Directions {get;set;}
... other select lists
// Worker Details
public string FirstName {get;set;}
public string LastName {get;set;}
public DateTime Birthdate {get;set;}
public int Phone {get;set;}et
public string Gender {get; set;}
public string SSN {get; set;}
public string DL {get;set;}
//Address Details
public int Number {get;set;}
public string Direction {get;set;}
public string Suffix {get;set;}
.....
public string Street {get;set;}
public string City {get;set;}
public string Zip {get; set;}
}
List Display Model
public class ListDisplayModel
{
public IEnumerable<Worker> Workers {get;set;}
internal class Worker
{
public string FirstName {get;set;}
public string LastName {get;set;}
public DateTime Birthdate {get;set;}
public int Phone {get;set;}et
public string Gender {get; set;}
public string SSN {get; set;}
public string DL {get;set;}
//Address Details
public int Number {get;set;}
public string Direction {get;set;}
public string Suffix {get;set;}
public string Street {get;set;}
public string City {get;set;}
public string Zip {get; set;}
}
}
I feel like i'm duplicating a lot of properties. I was wondering if it would be ideal for me to go ahead and create like a DTO class called worker and just place it in each of these view model classes or is there a better way to do something like this?
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Jan 25, 2011
This project is pretty far away and I'm not in the position to go make changes all over the place (If I could, deleting the lot would be what I'd do!)
I want to create a modelbinder that would resolve any dependencies my View Models might have (using StructureMap).
It should not require me to implement a specific interface (so many developers, so many interfaces..I rather keep things clean) and hopefully not require one to go register each model binder individually (Now I'm asking too much,taking the first requirment
in consideration).
Probably will get it right tonight, but figured I'd ask.
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Jan 22, 2011
If all my actions have a model that inherits from BaseViewModel, is it possible to initialize this model from the OnActionExecuting method?
Currently in all my actions I do this:
var model = new SomeModel();
model.User = Users.Get(...);
Now I am loading the user object in OnActionExecuting, so I was hoping I could setup my model from there somehow.
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Mar 21, 2011
I have relates to how we update using a view model. I am trying to pin down whether a viewmodel is disposed once a View is rendered to the browser or whether the viewmodel continues to exist even after the View has been rendered.
Essentially I have in my viewmodel the following code:
[Code]....
This is used to bind html elements in my view so if I need to make a modification to a Item contained in the list can I simply access this and post the VM back to the controller or do I need to post a Item object back to the controller in the singular. Secondly where is the best place to build a gui control such as a table. If in the view I have a foreach loop and write out table fields is this the most appropriate way of achieving this or should I deal with this in the Controller or Model and pass it to the gui in the View Model?
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Jan 18, 2010
I am learning MVC using the v2 release with Entity Framework v4. Let's say I have 3 objects Game, Points and Players. They are related in the following manner:Game has points and the Points can have a player associated with them ( 1 Game to many Points and a Point object can have one Player).
I am attempting to use the EditTemplates feature in MVC2 to render my views. In my Game Edit view I want to have the basic Game object information editable, and also the related Points objects. Currently I am utilizing "`<%= Html.EditorForModel() %>`"(Which seems pretty slow) to render the Edit View and then I have a specific Game and Point EditTemplates.
The data renders correctly and is editable for both the Game and Point information. When I go to perform the update and submit the form I receive the "Game" object in my Update ActionResult. The basic properties are populated for the Game object but any deep properties such as Points are not; they appear as null. If I look at the Request.Form variables in debug I can see the Points fields are being passed to the server but do not place themselves back into the Game object.
In my Game EditTemplate I am using the following to render the Points objects:
<%= Html.EditorFor(c => c.Points) %>
My Points EditTemplate looks like: [code]...
why this is rendering as "Points.Points[index] instead of Points[index]? I tried messing with the parameters in the EditFor:
<%= Html.EditorFor(c => c.Points,null,"Points") %>
but then the inputs render as Points.Points[index]
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Sep 18, 2010
Have seen in the MusicStore PDF witch can be sownloaded from [URL], That is it possible to render additional vew data. so: I have my ViewDataModel
[Code]....
I have the Model:
[Code]....
In my controller, I add the data into the model:
[Code]....
And I try to render it with Html.EditorFor.
[Code]....
My problem is here, that it only render Keyword
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Mar 18, 2011
The lack of an EditorFor file in asp.net mvc 3 seems like such a glaring omission I wonder: Is there some way that mvc handles file uploads that is just not publicized that well? As near as I can tell there is no built in way to handle file uploads.I'm just curious if the file upload capability is in fact there and I'm just missing it, or if it does not exist at all.
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Feb 17, 2011
I am looking on Music store example:
In Model we have:
[Required(ErrorMessage = "An Album Title is required")]
public string Title { get; set; }
In a View we have a Razor code:
<div class="editor-field">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</div>
My questions: Where I can find definition of EditorFor and ValidationMessageFor helpers?
What is the meaning of "=>" in the above command?
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May 1, 2010
I am generating the controls for an MVC Create Form using html.editorfor().How can i add style properties to whatever is created? For instance i have a control which is generated by html.editorfor() as a single line textbox but i want it to be a multiline textbox.
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Sep 10, 2010
I would like to exclude one of model's property from the Html.EditorFor. I tried [HiddenInput(DisplayValue=false)] but it renders the property as an hidden input. This could potentially be a security problem. How can we completely exclude a field from Html.EditorFor?
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Jul 12, 2010
I'm trying to do this: Editing a variable length list, ASP.NET MVC 2-style
In the post he mentions that it could be done with less code using Html.EditorFor(), but that it would be more difficult because of the indexes. Well, that's exactly what I want to do, and I don't know where to begin.
Update 1: Instead of generating a GUID for each item in the collection, I'd like to generate incremental indexes starting with 0. Right now the field names look like "gifts[GUID].value"; I would like them to be "gifts[0].value","gifts1.value" etc. but I don't understand how the collection keeps track and generates these indices.
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Nov 25, 2010
I'm trying to add a `Class` to the `EditorFor` Helper inside an `EditorTemplate`.
The problem is that because I'm using Unobtrusive Validation, the input element already has classes assigned to it.
Here is my EditorTemplate
[Code]....
And here is the output <input class="text-box single-line" id="BirthDate" name="BirthDate" type="text" value="08/08/1980" />
You can see here that the `datepicker` class has not been added, yet the "value" has been properly formatted.
Basically I can see that the `EditorTemplate` is working, but the `Class` is not being appended to the rest of the classes on the `<input>` element. Do any of you know how to fix this?
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Feb 16, 2011
I am using EditorFor to display values.
The code for the values to be generated are as follows:
<tr>
<td>@Html.HiddenFor(m => m.ID)@Html.CheckBoxFor(m => m.Authorized)</td>
<td>@Html.DisplayFor(m => m.ID)</td>
<td>@Html.DisplayFor(m=>m.UserName) </td>
</tr>
My aim here is upon the Checkbox is being checked, I need to post the ID value as follows:
[Code]....
However, var ID = $(this).parent().parent().find('#ID').val(); is undefined. How can I he read the ID value from the following generated HTML:
<td><input id="Employee_0__ID" name="Employee[0].ID" type="hidden" value="1100" /><input id="Employee_0__Authorized" name="Employee[0].Authorized" type="checkbox" value="true" /><input name="Employee[0].Authorized" type="hidden" value="false" /></td>
<td>user </td>
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May 9, 2010
Generally speaking we create a custom view for each page. So for an edit view of a car the model might be:
Car CarToEdit{ get; set;}
List<SelectListItem> CarManufacturers{ get; set;}
This has the advantage of giving a strongly typed view. It doesn't decouple the data layer well, but that is a separate issue. I'd then need to do something like (very approx syntax) :
<%= Html.DropDownList("ManufacturerId", Model.CarManufacturers)%>
Because of this, I can't use an EditorFor, and just pass in the model, as it would not render out the dropdownlists. So I think why not annotate the manufacturer field with UIHInt... great that works. ... but how do I pass in the data (both the manufacturerId, and the List<SelectListItem> to the hinted field?One solution is to have the UIHint control do a RenderAction. So the main view would include a line like:
[Code]....
Which would in turn go and render a view :
[Code]....
This works, but seems a little long winded. Can anyone suggest better ways of achieving this?Is anyone actually using UIHint?Also it would be good to be able to cache the output from the partial view (the dropdownlist) which is called from the RenderAction method... but output caches are is basically ignored on a render action (unless I've missed the point here).
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Mar 9, 2010
I have the following classes in my Model:
public abstract class Entity : IEntity
{
[ScaffoldColumn(false)]
[code]...
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Sep 2, 2010
I'm finding my self with the problem that if I do not show the Template for a "complex" object I have in the main view object I still get the errors in the summary. How do i get around this?
I've got a model with say:
->Persons (has its own editor template)
->Pets(has its own editor template)
In the create view I show each one depending if they are not null. But when I try to validate HouseType and say I have Persons not null and pets is null. I get errors of validation for pets.
How do I get around this?
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Feb 26, 2010
I would like to use DataAnnotations in my ASP.NET MVC application. I have strongly typed resources class and would like to define in my view models:
[DisplayName(CTRes.UserName)]
string Username;
CTRes is my resource, automatically generated class. Above definition is not allowed. Are there any other solutions?
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Jan 4, 2010
I need to know the best way to do the following. I have nested business level APIs (say level 1 & level 2). L1 needs to call L2. Both APIs use the database layer directly at their own nesting levels.
Now, in the database layer, I fetch the db connection from the pool each time as follows:
SqlConnection conn = new SqlConnection(connString);
conn.Open();
Is it proper to fetch the db connection each time on every DB level call as above? I know it will return a connection from the ASP.NET connection pool. However, wouldn't it be better to maintain the same DB connection throughout the nested calls (or throughout the current http request lifetime)? Will fetching a connection from the pool each time cause issues with nested TransactionScopes?
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Jun 17, 2010
Is there a better, cleaner way to do this in ASP.NET 2.0?
An ASP.NET 2.0 page displays a datalist of records. Each record can have many dates, so the dates are in a nested gridview (I chose a gridview over a datalist here because we want to be able to delete a date and this is easier done in a gridview). The parent record can never be deleted.
The display works fine: the nested gridview gets its datasource during the parent datalist's OnItemDataBound event.
The problem: the nested gridview's delete function. The date gets deleted without a problem (handled in the OnRowDeleting event), but somehow the redisplay is untying all the other nested gridviews from their datasources. The delete does not appear to cause a page postback, so I don't know how the other nested gridviews are losing their datasources.
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Mar 1, 2011
I'm trying to create a nested gridview, but I'm stuck at the editing/deleting part of the nested gridview. (Below is my code).The nested gridviews are filling out nice, I've set the DeleteParameter in the SQLDataSource, but I'm still getting this error when trying to delete a criteria: 'The Gridview 'gvCriteria' fired event RowDeleting which wasn't handled.'I've tried to create a method 'gvCriteria_RowDeleting', but that didn't seem to work out.Someone who can give me a piece of advice? Would it be possible to fill the gridview without using gvDomain_rowDataBound? Dries
[Code]....
[Code]....
And the C# behind:
[Code]....
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Feb 22, 2011
Objective:
Have the MultiView1 display only if Frieght values exceed 15.50. If check box is checked, retreive the row values of the Gridview1 and Gridview2 to perform a task.There will be two check boxes. One will be conditionally hidden. Each check box has a different function.
Example: Send an email notifying this entry has been flagged. I am using Visual Studio 2005 with ASP.NET 2 due to availability of resource. I have checked out numerous sites without finding the specific answer.
For example:
[URL]
The following a simplified representative example of what I am trying to accoumplish. It uses the Northwind.mdb access database with just the Customers and Orders table.
[Code]....
[Code]....
[Code]....
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