I my form I have some input controls which are bounded with controller's scope data. Based on users selection I am bounding selected item by using ng-model to input controls.
I am validating those inputs by using ng-maxlength ,minlength ,ng-pattern and other inbuilt validation directives.
Class for highlighting the invalid values.
.ng-invalid { border-color:red; }
But when user wants to add a new product, then I am creating an empty object and adding it to controller's scope data.
At the very first time while creating new item I don't want to highlight every thing with red, because very thing is empty.
Is there any way by which I can highlight invalid input on their focus and after it will show as invalid until use put some valid values in it.
When use select any existing data then I am validating control at that movement.
You can use forms' $pristine as a condition for your classes.
Related
I have an edit page where several fields are conditionally disabled, based on the user's role. When the fields are disabled, their values are not posted to the server (as expected), which causes the ModelState to be invalid, as the values are required.
To get around this, I want to add Html.HiddenFor() for the fields; so that a value will still get posted (and so that it will retain those values if the View is returned). However, in the case that those fields are not disabled, I will then have both a TextBoxFor and a HiddenFor going to the same model property.
I have run a couple tests, and it appears that when this happens, the value of the first element on the form will be binded to the model, while the next one just gets ignored. If this is the case, then I should be able to just put the HiddenFor after the TextBoxFor, in which case the value of the hidden input will only be posted when the regular input is disabled.
#Html.TextBoxFor(m => m.FirstName)
#Html.HiddenFor(m => m.FirstName) #*Only gets binded to the model if the above text box is disabled*#
(There is some JavaScript that conditionally disabled the visible TextBox).
So two questions: 1) Is it documented that MVC binding will always work this way; can I safely have both of these fields?
And, 2) Is there a better approach to accomplishing this? I know that I can but the HiddenFor inside an #If statement so that it will only get created if the TextBox is disabled; but that is a lot of extra logic in the View that I'd like to avoid.
The DefaultModelBinder reads the values from the request in order and binds the first matching name/value pair and ignores subsequent matches (unless the property is IEnumerable). This is how the CheckBoxFor() method ensures a true or false value is always submitted to the controller (the method generates a checkbox with value="True" and a hidden input with value="False"), so you can safely add the hidden input after the textbox.
One option you might consider rather than a disabled textbox, is to make it readonly, which means it will always submit a value, therefore you only need one input (and you can always style it to look disabled if that is what you want).
I have a table that lists items. I have a form tag that surrounds this table. In this table I have ADD buttons that adds new rows to the database. I have EDIT buttons that edits a row as well. The form posts to the same action on the controller.
Now I need to add a filter row on the first which means I need to add a Filter button to submit the form with the filter parameters. Since this is still inside the main form, I now have the following problem: When I click the Filter button, the inputs that are used for the ADD button are being validated before anything gets posted. How can I prevent the validation from occurring when the user clicks the Filter button?
Make sure the Filter button is of type "button" not "submit" and do filter using ajax
As i see it, the easy way would be to fire the submit via js with:
.submit();
The other way would be to disable validation on that form with this:
$('#form').validate({
onsubmit : false
});
or
$('#form').unbind('submit')
I have one suggestion. Name Add button inputs differently and add row using javascript/ajax. When posting, Add button inputs will not be validated because they have different names
I have a simple HTML page with an Unordered list. Is it possible to have an input field where you could add more to the list and it would be saved after you submitted it. What I would like to add would be the content inside of an <li> tag as well as the <li> tags themselves.
Thanks,
Here is a jsfiddle with a demo of what I think you want to achieve: http://jsfiddle.net/mvJNq/25/
Note that I can not answer as to how you should do this on the server, as that depends on how your serverside code, database etc is set up. However, if all you want is to display it as HTML and not have it saved as the user navigates away, you won't need the Submit button at all - then you just need the "Add" functionality.
Yes, it is possible - no, it will not be pretty. Here is what you would do:
create your base form with any default list items/inputs
use jQuery/JavaScript to bind an event handler to a button that you click when you want to add another item (alternatively, you could skip this step and just have another item appear by default)
on your event (be it checking that all input boxes have user-entered text, or the click event in step two) add another list item using jQuery.append(...)
ensure that you have a hidden input field to be used as a "counter" to keep track of the total number of list items and increment the value of this counter each time you add a new list item (note: you may need to use the ParseInt() method, depending on how you design the code for this field)
the page that is receiving the form's inputs should first read the hidden field so that it knows how many items to add, and then you should loop through the items (for or while loop) to add them correctly
Note: I don't know what Server-Side language you are using to handle receiving the form so step 5 is a fairly generic and universally viable option
Sure, it's possible.
The complexity of this comes in when you want to "save" the items. If the user leaves the page and comes back later will that data be available? If so, you will need a database like mySQL or similar. The li tags can be stored as well, but why?
If you just need that information available in that session you can store in a JavaScript variable and have it loop through the variable and spit them out as <li>'s
If you did want to use an add button instead of submit:
$('#addButton').click(function(){
var savedContent = $('#input').val();
}
To create + insert the <li>you can use javascript to create the element and append it to the ul. If you have more than one ul change the index:
var content = document.createElement('li');
content.innerText = savedContent;
document.getElementsByTagName('ul')[0].appendChild(content);
I have a check box that when checked multiple boxes are disabled on my form.
Currently im using
With Me!Textbox
.Locked = True
Is there a method where I can list multiple objects within the With statement rather than writing out each time for every textbox
e.g.
With Me!Text1, Text2, Text3
It may be easiest to add something to the tag property to identify the relevant controls, "lock", say. Then you can iterate over the controls collection and lock anything with a tag set to "lock".
I have access to form field in the administrative view.
Example
<label>Number:</label>
<input type="text" name="title" size="50"/><br/>
I do not have access to modify the html syntax, the only thing i can do is updating the form field with a value.
In the form field i want to update it with a number. I also want to have a link assigned to that number.
So when i click that number it directs us to the link.
Is there a way i can do that?
This method is tedious, but you could use the jQuery nth-selector to select the specific form element that you are dealing with.
http://api.jquery.com/nth-child-selector/
This method is risky, however, since you might add other form elements before it, altering the index of your target input element.
Afterwords, you could use the .val() jQuery method to change your input value.
Nonetheless, again, this method is not safe because the index of the form element could change. I would beg the powers of be to be able to add an ID or some identifying attribute to that form element.