MVC Html.TextBoxFor MaxLength and Value - asp.net-mvc-2

I am trying to setup a TextBox control in my project using Html.TextBoxFor.
However, it only seems to have method signatures for either:
Lambda Expression and Value:
<%= Html.TextBoxFor(t => t.ProjectDetails.Title, Model.ProjectDetails.Title)%>
or
Lambda Expression and HtmlAttributes:
<%= Html.TextBoxFor(t => t.ProjectDetails.Title, new { maxlength = 10})%>
This is not an issue for styling as the control id is known: ProjectDetails_Title and a style sheet can be used. However, maxlength cannot be set via CSS as it is a behavior.
I know you can specify all three using Html.Textbox but I want to take advantage of the extra functionality of Html.TextBoxFor.
Any ideas on how I can set both a value AND a maxlength for a control rendered using Html.TextBoxFor?
Thanks for any help on this!

This should work in MVC4. Not sure about MVC2.
#Html.TextBoxFor(t => t.ProjectDetails.Title,new { #maxlength="10", #class="myCssClass"})

Related

drupal 7 form validate add class?

In my form I create a checkbox
$form['existing_customer'] = array(
'#type' => 'checkbox',
'#title' => t('Are you an existing customer?')
);
When I validate it using hook_validate I would like to add a class to the label? Any ideas how to achieve this?
I can't imagine why you'd want to do this in a validation function, and I think there's a far easier way to accomplish what you're trying to do.
Each element in a Drupal form is wrapped with a container (which has an ID). Inside this container there will only ever be one label.
So if you need to target the element in CSS or JS you just need to do something like this:
#existing-customer-edit label {
// The rule
}
OR
$('#existing-customer-edit label').something();
If you really need to edit the label manually then you're going to have to provide a custom theme for that element, have a look at this example for more information (it's for Drupal 6 but the concept is the same in Drupal 7).
thanks Clive did a fairly nasty work around in the form validation function
$form_state['complete form']['myselectbox']['#title'] = '<span class="privacy-error">you did not check me</span>';
It ain't pretty but it works!
You can add a class in hook_validate():
$form_state['complete form']['submitted']['existing_customer']['#attributes']['class'][] = 'class_name';

rails 3.1 auto-completion and realtime update in rails

Can anyone tell me how to easily implement auto-complete in rails 3.1?thanks. p.s. What's the best solution for simple_form to do this??
Besides, I also want to know how to implement meetup's RSVP instant push in rails?
I have the following form, but it didn't work, please advise.
%table
= simple_form_for(#book) do |f|
%th book name
%th
= f.input :name, label: false, placeholder: "add a name", :wrapper_html => { :id => 'autocomplete' }
= f.input :object, autofocus: true, label: false
%th
= f.button :submit, "Yes!"
I built a simple Rails 3.1 app using the jQueryUI autocompletion feature here. You simply add the jQueryUI library to your assets, add a css class or id to the actual text field that shall be autocompleted and put some javascript logic in your application, like:
$(function() {
$('#autocomplete').autocomplete({
source: '/movies/autocomplete'
});
});
with #autocomplete the css id of the text field. '/movies/autocomplete' is the actual route that will HTTp requested with the data that's put into the text field. In the movies#autocomplete action you then use that param to search for data for the autocompletion. Depending in what kind of jQueryUI autocompletion you use, you simply return an array like [{:label => 'FOO', :value => 'foo'}, ...] as JSON. label is the text you get autocompleted, value is the text that is put into the text field when clicking the label. I think and hope the code from the repo is quite understandable. Also, have a look at the JQueryUI library.
Though there shouldn't be a problem with simple_form, since it's just the text field that gets touched.
Best regards
Tobias

How do I get a regular Checkbox in a Zend Form?

I have a form in Zend_Form that needs some checkboxes and I'd like them to be regular old checkboxes. You know, you give em a name and a value. If they are checked your post data contains name=>value.
Zend_Form is generating two inputs fields. One, the checkbox with a value=1 and the second a hidden input with a value=2. Both have the same name. I understand in theory how Zend expects the checkbox to work, but that's not how I expect it to work and it's not how I want it to work. How do I get my old fashion HTML checkbox back?
I have tried using $this->createElement, $this->addElement and creating a Zend_Form_Element_Checkbox manually. None allow me to set the checkbox's value and all generate the hidden input.
The final and REALLY correct answer is to add an option to the element :
$this->addElement('checkbox', 'my_element', array(
'label' => 'My Element Label',
'name' => 'my_element_name',
'disableHidden' => true
));
Zend_Form_Element_MultiCheckbox is what you're looking for.
The standard Checkbox element is meant to represent "yes/no" scenarios.
You could extend Zend library and add your own custom form element to render it just like you expect it. I did it for having a date field and it worked just fine.
I wonder why that does not work for you. You can set the values to anything you want (setCheckedValue() and setUncheckedValue()). So the only difference to normal checkbox is
if (null == $this->_getParam('checkbox', null)) {
//vs.
if ($unchecked == $this->_getParam('checkbox')) {
What exactly are you trying to do?

CakePHP DIV option for Dropdowns

It's easy to configure a Div using the form helper for standard input boxes. An example int he manual is...
echo $this->Form->input('User.name', array('div' => 'class_name'));
However, I can't achieve the same thing with dropdown menus?
Can anyone help out as to how to wrap a dropdown with a DIV using the form helper method?
thanks
I imagine you've been building your dropdowns with FormHelper::select, which doesn't include all the sugar of FormHelper::input, like automatic <div /> wrapping, magic error-messages, etc. You can get FormHelper::input to output a dropdown using the following.
$this->Form->input(
'User.country',
array(
'options'=>$arrayOfCountries,
'div'=>'class_name'
)
);
The options parameter indicates to FormHelper::input that you want a dropdown. You could achieve the same effect with the type parameter (ie. 'type'=>'select'), but the options parameter gives the same effect while also taking care of preparing the dropdown's options.

Asp MVC 2: Typed Editor Template

(I reference this tutorial in this text)
I want to use the Html.EditorFor (or Html.Editor) helpers.
If a UserControl needs additional data it is passed via
...EditorFor(model => model.Album, new { Artists = Model.Artists, ... })
In the UserControl it's accessed via ViewData[stringKey], ie
... new SelectList(ViewData["Artists"] as IEnumerable, ...
To me this smells a little fishy as I would prefer a strongly typed ViewModel which ensures that specific data is available.
I'm now a little bit stuck as I don't know wheater there's a "typed way" to find or I should accept this way as-is.
How did you solve this issue? Any help appreciated!
Lg
warappa
I would probably change my view model so that I don't need to pass this additional information. You could make for example an album has a collection of artists. Now all tha you will have to do is:
<%: Html.EditorFor(model => model.Album) %>
And in your editor template:
<%: Html.DropDownListFor(x => x.SelectedArtist, new SelectList(Model.Artists)) %>