MVC :: HTML Helper Extension And Data Binding?

Mar 10, 2010

I'm new to MVC and am trying to create some more user friendly controls for use on the Create views. I'm able to render a control using a combination of extensions and partial views, however I am unable to bind to those controls as I am with the out of the box controls like html.textboxfor such as:

Html.TextBoxFor( model => model.Capability_Menu_Group_Id)

Although the controls renders on the create form, the value is not set on create. I would like to set up this same construct used with TextBoxFor for my custom controls.

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MVC - Use The New Html Helper Extension Serialize() From The Future Assembly

Aug 31, 2010

I'm trying to use the new Html helper extension Serialize() from the furthure assembly..

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<List<MvcApplication2.Models.ProductViewBinding>>" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<%@ Import Namespace="Microsoft.Web.Mvc" %>>
<html xmlns="" >
<head id="Head1" runat="server">
<% using (Html.BeginForm("Index", "Products", FormMethod.Post))
{ %>
<% int codeIndex = 0;
foreach (var item in Model)
{ %>
<%: Html.TextBox("Encryption[" + codeIndex + "].Value") %>
<%: Html.Serialize("Encryption[" + codeIndex + "].ID", item.ID) %>
<% codeIndex++;
} %>
<%: Html.SubmitButton("Click meh!") %>
<% } %>
public class ProductViewBinding
public object ID { get; set; }
public object _value;
public object Value
get { return this._value; }
set { this._value = value; }
public ActionResult Index([Deserialize] List<ProductViewBinding> Encryption)
return View("Index", Encryption);

It returns null when posted... but if I remove the [Deserialize] attribute it returns as it should but with the ID still encrypted.

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MVC :: Html DropDown Helper, GET And POST Data From 2 Tables?

Mar 18, 2011

i am really confuse about the html dropdown helper. i cant reli find one info which describe clearly about every overload and how to use them.currently i gone through a problem which i spent one day and still cant resolve it, really hope can get the help here since i need to make tis work for my final year project..i have a food table, and a foodtype table. each food will have a type, so the FoodTypeID is the FK for Food table.i want to have a create and edit page for Food. on the page, i want to provide a dropdownlist for user to select the food typethe FoodTypeName column that store the food type description is at the FoodType table, so i need to get the value of FoodTypeID based on user selection on the dropdown.I had tried for hourssss to do this bt i either get a compilation or cant save the new foodType selected in db


in fact, i not reli understand wat should be put inside the model => xxx and the dropdown helper overload, i am writing this based on the mvc tutorial

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MVC :: Html Helper Data Grid - Sorting Columns Using Post?

Jul 22, 2010

I've been asked to take over a project that's filled with a bunch of bugs. It's currently using MVC 1.0 and there's a view with Html Helper Data Grid that uses a DataGridHelper class. I'm not that familiar with all of MVC yet, and I was wondering if it is possible to have the sorting of the columns be a POST event rather than a GET.

Currently when a user clicks a column to sort, the controller for the view calls the GET action method. This I guess is all fine and good, but the problem is that this view has a search form (which is a model in it's own right) with some text boxes and some drop down lists. When the GET action method is called, I lose all of the information in the search criteria. So when ever someone searches for something, but then wants to sort the results, it requries the db for all records (because all of the search criteria is cleared).

I guess there could be two solutions:

1) Is there a way to access the items in the search form / model in the GET portion of the action method? I've tried using ViewData or adding a parameter for the search form model, but (and maybe I'm doing it wrong) both return null.

2) Is there a way to make the sorting event of a column call the POST portion of the action method? That way I'll have the search form / model information and be able to sort the search result content instead of query for all records.

Also, there is a stored procedure that currently can handel all of possible search parameters. So, no matter what sort column is selected, or search parameters are entered, it can properly setup the sql query.

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C# - Pass Model Values As Javascript Function Parameters From Inside Mvc Html Helper Such A Html.Radio?

Jul 20, 2010

I think I need to drop in some escape characters, but I'm not quite sure where. Here is the javascript function I'm attempting to call:

function setData(associateValue, reviewDateValue) {
var associate = document.getElementById("Associate");
var reviewDate = document.getElementById("ReviewDate");
associate.value = associateValue;
reviewDate.value = reviewDateValue;

Here is the asp .net mvc line where I'm attempting to create a Radio button with a click event that calls the above function and passes data from the model as javascript parameter values.

<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('<%=item.Associate%>','<%=item.ReviewDate%>' )" } )%>

The above throws a bunch of compile issues and doesn't work. A call such as the following does call the javascript, but doesn't get the data from the model.

<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('item.Associate','item.ReviewDate' )" } )%>
<%= Html.RadioButton("Selected", item.Selected, new { onClick="setData('item.Associate','item.ReviewDate' )" } )%>
<% String functionCall = String.Format("setData('{0}','{1}')", Html.Encode(item.Associate), Html.Encode(item.ReviewDate )) ; %>
<%= Html.RadioButton("Selected", item.Selected, new { onClick=functionCall } )%>

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MVC: When To Use Custom HTML Helper Methods Vs Html.RenderAction

Feb 10, 2010

It's a little unclear for me on when to use a custom helper method and when to use RenderAction and also when to simply use ViewData instead. Some of their functions overlap slightly.

For example, if I were to create a Category navigation bar, would I create a new helper method and place that in some partial view? I had initially though of doing this, but I read on some blog to use RenderAction instead.

Assume the list of categories is coming from some data source.

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Html Helper Html.RouteLink Possible To Place Image?

Aug 30, 2010

<%= Html.RouteLink(">>>", new { page = (Model.PageIndex + 1) },null)%>

Is it possible to set image instead ">>>" and how?

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MVC Html Helper Rendering?

Jan 20, 2010

I was wondering if it's possible to render an Html Helper in a View inside a codeblock. So instead of:


And have this render. Of course as it is, it wont render, so is there a way to programically decide if a textbox can be added without having to have a million delimiters in the page to accomplish this?

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MVC :: Create 2 Html Helper

Mar 15, 2010

I am trying to create 2 Html helpers but that use the String Type as in MVC 2.

1. Html.FileFor Would render something like: <input type="file"

2. Html.Buttom and Html.Submit that would render <input type="button" or <input type="submit" In this case I suppose it makes no sense to have the For.

I know how to do (2) unless there would be something more than rendering the help and defining the Html attributes. However (1) I don't know how to do it

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HTML "id" Attribute For Items In Dropdown Made From Html Helper

Jan 5, 2011

Can we set an id attribute as I would for something like a table column via: for an html dropdown list element that is created with a helper such as:

<% for (int i = 0; i < Model.Trx.TransactionHolidayCityCollection.Count; i++)
<%= i > 0 ? "," : "" %>
<%= DropDownData.HolidayDays().ToList().Find(item => item.Value == Model.Trx.TransactionHolidayCityCollection[i].HolidayCityID.Value.ToString()).Text %>
<%} %>

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MVC :: Getting The ID For A Model Property From HTML Helper

Jan 25, 2011

Is there a way to retrieve the client side ID for a model property similar to how the helpers like LabelFor etc generate the ID? For example, I have a model with a DateOfBirth property. I want to hook up that field to a jQuery DatePicker. Normally, I would hook up the date picker like this:


This works fine but hard codes the DateOfBirth property name. Ideally, I would like to use this:


Is this already available out of the box somewhere? I just created an extension method on the HtmlHelper class that does exactly this, but I wondered if there was already something built-in so I don't have to reinvent and test the wheel.

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MVC :: Possible To Overwrite The Default For Html Helper

Mar 30, 2011

i am using html.textboxfor to display the amount (int) from my model. currently once the form is shown, the default amount is = 0. i wish to have the default set as 1, is it possible to overwrite the default for html helper??


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.net - Call The RenderAction In Html Helper?

Feb 17, 2010

im extending the htmlhelper. but it i cannot call the renderaction of it.

using System.Text;
using System.Web.Mvc;
using System.Web.Mvc.Html;
public static class ViewHelpers
public static string Text(this HtmlHelper htmlHelper, string name, object value, bool isEditMode)
htmlHelper.RenderAction(...) //cannot be called

how can i call the RenderAction?

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MVC :: Disable Textbox Or Other HTML Helper Controls?

Aug 4, 2010

I am using a view based of a formView.. say LogonViewForm (having userName and password) what i want to do is , suppose i enter my username and password and my account is not verified after logon. Its gives me a message as your account is not verified and redirects me to another view, what i want is it must be already having my username in its username textbox and must be disbaled. rite now i can pass the username value to verify view.. but can`t get how to disable the textbox.

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Helper Class For Creating HTML Emails In .NET?

Mar 2, 2011

I was using the default MailMessage and SmtpClient classes for creating and sending HTML emails from a web forms website. The problem is I have a lot of hard coded HTML for formatting the email that gets sent. Is there a class that helps format emails for .NET?

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MVC :: Finding Google Analytic HTML Helper?

Oct 25, 2010

I think (I read it somewhere and can't find the source again) there is a new Google Analytics Html Helper on MVC 3 Beta.

Where can I find the source for this helper?

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MVC :: HTML Helper For Checkbox - Display In View

Jan 7, 2010

I have retrieved an array of data that I want to display in my view in checkbox format.


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MVC :: How To Use Razor Template In Custom Html Helper

Feb 23, 2011

I have a custom Html Helper that takes a few parameters and generates some Html. For example:


This would render something like:


I would like to be able to define a Razor Template so the Html Helper renders the Html differenlty:


This would render:


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MVC :: Accessing Html Helper Controls From The Controller?

Aug 13, 2010

In a webforms application, it's possible to add a server control to the markup and then access that control from the corresponding code behind file, but I'm not sure of the MVC equivalent of this functionality.

I've been looking at some tutorials, and it appears that in MVC applications, instead of using server controls, the examples are using HTML helpers, such as Html.TextBox, etc.

However, while I can find examples html helpers in views, I can't find any examples of how these helpers are accessed in the controllers, so I've declared an Html.TextBox in my view but don't know how to access its value in the controller when I hit enter.

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MVC - Html Helper That Renders An Action To As A String

Nov 23, 2010

I need an Html Helper that renders an action to as a string.

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MVC :: Create A Html Helper For Tny Mce Htlm Editor?

Nov 2, 2010

how can I create a html helper for tny mce htlm editor?

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C# - Disable Autocomplete On Html Helper Textbox In MVC?

Mar 11, 2011

I would in normal use a theme to turn off autocomplete on all text boxes on an entire site. However i cannot do this on MVC because nothing in the theme .skin files seems to work.

I have this in my .skin file:

<asp:TextBox runat="server" autocomplete="off" />

however this does not render at all, of course because this is not how MVC works. Anyway is there any way i can get this sort of thing to work.The site i am trying to do it on is too big to warrant changing every textbox or creating a new HTML helper to solve the issue?

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C# - Data Binding To HTML Tag

Mar 28, 2011

I was just wondering if it is possible to bind data using DataBinder.Eval on a html tag with runat=server attribute. For example i want to do something like:

<a href=<%#DataBinder.Eval(Container.DataItem, "file_name") %> runat="server" />

but it doesn't work. does this mean i have to use the hyperlink control?

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Mvc Html Drop Down List Helper Isn't Selecting Option

Jul 4, 2010

In my controller I generated a SelectList that I pass to the dropdown helper:<%= Html.DropDownList("abc123", Model.SomeList) %>I look at the querystring for a value, which is a ID.I then loop through all the items in the SelectList and if it is equal to the ID, I do:The controller action then passes this SelectList to the view and then to the Html helper.In debug mode I can see the value does get set to true, but the html renders without selecting the item.

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MVC :: Why Are HTML Helper Methods In MVC Are Inside Server Tags

Jan 9, 2010

I am new to MVC. why HTML helper methods are inside asp server tags?

for example <%=Html.Textbox("Textbox1")%>

are they equivalnet to web form server tags. Like in web forms we have

<asp:TextBox runat="server"></asp:TextBox>

If someone can kindly explain.

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