Blazor Text Area Overview

    The Ignite UI for Blazor Text Area represents a multi-line plain-text editing control, useful when you want to allow users to enter a sizable amount of free-form text, for example a comment on a review or feedback form.

    Blazor Text Area Example

    Dependencies

    // in Program.cs file

builder.Services.AddIgniteUIBlazor(typeof(IgbTextareaModule));

    You will also need to link an additional CSS file to apply the styling to the IgbTextarea component. The following needs to be placed in the wwwroot/index.html file in a Blazor Web Assembly project or the Pages/_Host.cshtml file in a Blazor Server project:

    <link href="_content/IgniteUI.Blazor/themes/light/bootstrap.css" rel="stylesheet" />

    <IgbTextarea Rows="5" Label="Tell us your story:">It was a dark and stormy night...</IgbTextarea>

    Prefix, Suffix & Helper Text

    With prefix and suffix slots we can add different content before and after the main content of the Text Area. The helper-text slot provides a hint placed below the Text Area. In the following sample we will create a new Text Area field with a text prefix, an icon suffix and a helper text as a hint:

    Text Area Resizing

    There are three different resize options of the IgbTextarea. When set to none, the text area does not resize and uses a scroll bar to show overflow text. When set to vertical (the default option), the text area lets the user resize it vertically. When set to auto, the text area shows all the user input at once. Overflow text wraps onto a new line and expands the text area automatically.

    Form Integration

    The sample below shows how a IgbTextarea could be integrated into a form.

    Styling

    The IgbTextarea component exposes CSS parts for almost all of its inner elements. The following table lists all of the exposed CSS parts:

    Name Description
    container The main wrapper that holds all main input elements.
    input The native input element.
    label The native label element.
    prefix The prefix wrapper.
    suffix The suffix wrapper.
    helper-text The helper text wrapper. 
    igc-textarea::part(input) {
  background-color: var(--ig-info-100);
  border-color: var(--ig-primary-400);
}

igc-textarea::part(label) {
  color: var(--ig-gray-800);
}

igc-textarea::part(prefix),
igc-textarea::part(suffix) {
  color: var(--ig-primary-500-contrast);
  border-color: var(--ig-primary-500);
  background-color: var(--ig-primary-500);
}

    API References

    Additional Resources