Modifying the appearance of InputText through CSS encapsulation

Question

Modifying the appearance of InputText through CSS encapsulation

I'm a newbie to using Blazor and I'm currently experimenting with changing the style of InputText by utilizing css isolation.

Interestingly, I've managed to successfully change the style when setting it inline or internally, however, things take a different turn when attempting to do so with css isolation. After consulting the documentation, it asserts that

Scoped CSS exclusively affects HTML elements and not Razor components or Tag Helpers, which includes elements with a Tag Helper applied, like < input asp-for="..."> /.

Could InputText be considered a Razor component, causing the hiccup in changing the style through css isolation? Any tips would be greatly appreciated!

css asp.net-core blazor .net-7.0 asp.net-core-css-isolation

Answer 1

Answer №1

Initially, it's important to note that InputText functions as a razor component and is categorized as one of the predefined input components. Therefore, it follows that css isolation not being effective in InputText is an anticipated outcome. The documentation provides an explanation on why utilizing inline styles in InputText can effectively alter the style.

All input components, such as EditForm, have the ability to support arbitrary attributes. Any attribute that doesn't match a component parameter will be included in the rendered HTML element.

To address this issue, one possible solution is to define the class within wwwroot->css->site.css, or include

<style> .input-text-r { color: blue; } </style>

in the razor component, or use inline styling if it complies with your CSP policy. Another approach could involve dynamically adding the class after the page has been rendered in specific situations, through code similar to the example below.

<InputText class=@classvalue @bind-Value="starship.Identifier" />

protected override async Task OnInitializedAsync()
{
    classvalue = "input-text-r";
}

Answer 2

Initially, it's important to note that InputText functions as a razor component and is categorized as one of the predefined input components. Therefore, it follows that css isolation not being effective in InputText is an anticipated outcome. The documentation provides an explanation on why utilizing inline styles in InputText can effectively alter the style.

All input components, such as EditForm, have the ability to support arbitrary attributes. Any attribute that doesn't match a component parameter will be included in the rendered HTML element.

To address this issue, one possible solution is to define the class within wwwroot->css->site.css, or include

<style> .input-text-r { color: blue; } </style>

in the razor component, or use inline styling if it complies with your CSP policy. Another approach could involve dynamically adding the class after the page has been rendered in specific situations, through code similar to the example below.

<InputText class=@classvalue @bind-Value="starship.Identifier" />

protected override async Task OnInitializedAsync()
{
    classvalue = "input-text-r";
}

Modifying the appearance of InputText through CSS encapsulation

Answer №1

Similar questions

Thumbnails failing to line up in a continuous row

HTML validation produces mistakes

Printing without page borders

How can we apply CSS to all pages except for one containing the "howto" placeholder?

The horizontal scroll feature is dysfunctional when attempting to allocate cell space based on a percentage

Troubleshooting the Height Problem in Material-UI's Menu

What is the best way to dynamically adjust the size of a grid of divs to perfectly fit within the boundaries of a container div without surpassing them?

Tips for automatically disabling cloudzoom based on image width

The website's responsiveness appears to be malfunctioning on iPhone 10 and other iOS devices

What method can be used to dynamically resize two side-by-side iframes in proportion to a specific ratio?

Utilizing a dynamic URL to set the background image of a div element (with the help of

Tips for locating the index of the previously selected active class

Combining labels over multiple lines using lower division

What is the best way to align text in the center based on a specific portion of the content?

Reposition and resize an image. Creating a grid layout

What is the process for changing the border color of a Select Component?

What could be causing my CSS parallax effect to not work as expected?

Personalized HTML selection list

Arrows on the button are unresponsive and there seems to be an incorrect number of

Encountering an issue with npm installation following a recent node version upgrade