How to turn off validation for md-input-container in Angular 2

While working on a form in Angular 2, I encountered an issue when adding the required attribute to my <input>. The problem resulted in unwanted margins as shown in this image: https://i.sstatic.net/W6JSF.png

I am seeking a solution to only apply the second red margin to the input tag and eliminate the initial margin associated with the md-input-container.

Is there a method to deactivate one of these margins?

Here is the HTML code snippet:

<h2 class="mmm">Create building</h2>
<form #buildingForm="ngForm" (ngSubmit)="onSubmit(buildingForm.value)">
  <div class="form-group">
    <md-input-container>
      <input type="text" #nameRef mdInput required placeholder="Building name" name="name" ngModel>
    </md-input-container>
  </div>
    <button type="submit" md-raised-button color="accent" class="pull-right">{{title}}</button>
</form>

Here is the CSS code snippet:

md-input-container input {
  width: 400px;
  font-size: 1.5em;
}

It is worth noting that the provided CSS solely adjusts the size of the container.

Answer №1

Big shoutout to @Nehal for the helpful hint!

Eureka! I believe I've stumbled upon a solution, albeit a simple one.

When utilizing the md-input-container with an <input mdInput required>, there are two key classes responsible for displaying the invalid indicator: .mat-input-container and .mat-input-element. By targeting and modifying one of these classes, we can effectively remove the unwanted indicator. Here's how:

.(mat-input-container or mat-input-element) {
    border-left: none;
}

This tweak even grants us the ability to customize the color of these validations. Hopefully, this solution proves beneficial to others facing a similar predicament.

If you happen to possess an alternate approach, please do share! Personally, I'm not particularly fond of relying on CSS hacks.

Answer №2

This is an effective CSS class:

.ng-invalid:not(form).mat-input-element  {
  border-left: 5px solid #a94442; /* red */
} 

Here is the original hint provided:

.mat-input-element{
  background-color: lightgreen; /* choose your own color value */
}

Check out the demo here

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