How can I customize the appearance of the file input button in Angular Material?

Question

How can I customize the appearance of the file input button in Angular Material?

Despite browsing numerous similar questions, I have yet to find a solution to my issue.

My setup includes Angular 11, Angular Material 8, and a file input structured like this:

<div class="form-group">
    <input #myInput type="file" formControlName="fi"
                     id="fi" name="fi" (change)="postMethod($event.target.files)">
</div>

What I'm looking for:

I am seeking ways to customize the color, text, and size of this button.

Any suggestions on how to achieve this customization?

css angular bootstrap-4 angular-material

Answer 1

Answer №1

Successfully resolved using this method (Works for Angular Material and Bootstrap):

I created 3 distinct components:

The visible button (Either an Angular Material or Bootstrap button, as shown below)
The file input field
The label to display the selected file name

HTML

<div>
  <button #file class="btn btn-light">Browse</button>
  <div style="display: inline-block">
      <input #myInput formControlName="file"
      id="file" name="file" (change)="postMethod($event.target.files)" type="file"/>
      <p>{{file}}</p>
  </div>
</div>

CSS

Using CSS, I positioned the input field to overlay the button and set its opacity=0 so that the button remains visible.

- Button:

float:left; 
position:absolute; 
z-index:-1;

- Input:

opacity: 0; //Invisible
font-size: 0;
//Button dimensions
width: 90px; 
height: 37px; 
float: left;

- Input (Hover):

cursor: pointer;

- Label:

float: left; 
margin-left: 6px; 
margin-top: 7px;

This produces the following outcome:

Answer 2

Successfully resolved using this method (Works for Angular Material and Bootstrap):

I created 3 distinct components:

The visible button (Either an Angular Material or Bootstrap button, as shown below)
The file input field
The label to display the selected file name

HTML

<div>
  <button #file class="btn btn-light">Browse</button>
  <div style="display: inline-block">
      <input #myInput formControlName="file"
      id="file" name="file" (change)="postMethod($event.target.files)" type="file"/>
      <p>{{file}}</p>
  </div>
</div>

CSS

Using CSS, I positioned the input field to overlay the button and set its opacity=0 so that the button remains visible.

- Button:

float:left; 
position:absolute; 
z-index:-1;

- Input:

opacity: 0; //Invisible
font-size: 0;
//Button dimensions
width: 90px; 
height: 37px; 
float: left;

- Input (Hover):

cursor: pointer;

- Label:

float: left; 
margin-left: 6px; 
margin-top: 7px;

This produces the following outcome:

Answer 3

Answer №2

To style an input type file, the recommended approach is to create an overlay element that corresponds with the input type file.

When working with Material design, you have the ability to style almost everything related to material components. While you can apply Material classes to custom components, it's not the primary purpose of Material design.

Here's a simple example:

<mat-card></mat-card>

For styling inputs in Material design, consider creating something like this:

HTML:

<mat-card class="input-container">
  <button #file mat-flat-button color="primary">Browse...
      <input multiple (change)="onFileSelected($event)" style="opacity: 0; position:absolute; left:0px; top:0px; width:100%; height:100%;" type="file"/>
  </button>
  {{files|json}}
</mat-card>

TS:

  files: string[] = [];
  onFileSelected(event) {
    if (event.target.files.length > 0) {
      for (let i = 0; i < event.target.files.length; i++) {
        this.files.push(event.target.files[i].name);
        console.log(event.target.files[0].name);
      }
    }
  }

CSS:

.input-container {
  position:relative;
}

This serves as a basic illustration.

However, using an npm package such as https://www.npmjs.com/package/ngx-dropzone may be preferable.

Answer 4

To style an input type file, the recommended approach is to create an overlay element that corresponds with the input type file.

When working with Material design, you have the ability to style almost everything related to material components. While you can apply Material classes to custom components, it's not the primary purpose of Material design.

Here's a simple example:

<mat-card></mat-card>

For styling inputs in Material design, consider creating something like this:

HTML:

<mat-card class="input-container">
  <button #file mat-flat-button color="primary">Browse...
      <input multiple (change)="onFileSelected($event)" style="opacity: 0; position:absolute; left:0px; top:0px; width:100%; height:100%;" type="file"/>
  </button>
  {{files|json}}
</mat-card>

TS:

  files: string[] = [];
  onFileSelected(event) {
    if (event.target.files.length > 0) {
      for (let i = 0; i < event.target.files.length; i++) {
        this.files.push(event.target.files[i].name);
        console.log(event.target.files[0].name);
      }
    }
  }

CSS:

.input-container {
  position:relative;
}

This serves as a basic illustration.

However, using an npm package such as https://www.npmjs.com/package/ngx-dropzone may be preferable.

Answer 5

Answer №3

One way to modify the appearance is by utilizing CSS.

input[type=file]::file-selector-button {
  cursor: pointer;
  border: 0;
  padding: 8px;
  background-color: rgb(91, 105, 194);
  border-radius: 8px;
  color: white;
}

input[type=file]::file-selector-button:hover {
  background-color: rgb(54, 61, 115);
}

<div>
  <input
    type="file"
    [accept]="'.csv'"
    multiple/>
  <label>Select file</label>
</div>

Answer 6

One way to modify the appearance is by utilizing CSS.

input[type=file]::file-selector-button {
  cursor: pointer;
  border: 0;
  padding: 8px;
  background-color: rgb(91, 105, 194);
  border-radius: 8px;
  color: white;
}

input[type=file]::file-selector-button:hover {
  background-color: rgb(54, 61, 115);
}

<div>
  <input
    type="file"
    [accept]="'.csv'"
    multiple/>
  <label>Select file</label>
</div>

Answer 7

Answer №4

In your css/scss/sass:

#fi {
  background-color: pink;
  ...
}

If you are trying to style a single button using Angular Material, it may not be the best approach. It is recommended to style groups instead - for more information, please refer to this link: https://material.angular.io/guide/customizing-component-styles

Edit:

Styling input elements of type file can be challenging.

Here is an example on Plunkr showing how it can be done:

.fileContainer {
    overflow: hidden;
    position: relative;
    cursor: pointer;
    background-color: pink;
}

.fileContainer [type=file] {
    cursor: inherit;
    display: block;
    font-size: 999px;
    filter: alpha(opacity=0);
    min-height: 100%;
    min-width: 100%;
    opacity: 0;
    position: absolute;
    right: 0;
    text-align: right;
    top: 0;
}

<label class="fileContainer">
File upload
<input type="file"/>
</label>

Answer 8

In your css/scss/sass:

#fi {
  background-color: pink;
  ...
}

If you are trying to style a single button using Angular Material, it may not be the best approach. It is recommended to style groups instead - for more information, please refer to this link: https://material.angular.io/guide/customizing-component-styles

Edit:

Styling input elements of type file can be challenging.

Here is an example on Plunkr showing how it can be done:

.fileContainer {
    overflow: hidden;
    position: relative;
    cursor: pointer;
    background-color: pink;
}

.fileContainer [type=file] {
    cursor: inherit;
    display: block;
    font-size: 999px;
    filter: alpha(opacity=0);
    min-height: 100%;
    min-width: 100%;
    opacity: 0;
    position: absolute;
    right: 0;
    text-align: right;
    top: 0;
}

<label class="fileContainer">
File upload
<input type="file"/>
</label>

How can I customize the appearance of the file input button in Angular Material?

Answer №1

Answer №2

Answer №3

Answer №4

Edit:

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