Styling in ASP.NET MVC Rich Text Editor component

11 Jun 202419 minutes to read

Font Name and Font Size

By default, the Rich Text Editor initializes with the font name and font size set to “Default.” This configuration means that the editor will inherit the font family and font size from its parent element in the application. If the content in the Rich Text Editor inherits its font properties from any parent element, these inherited values will appear as the default selections in the respective drop-down menus.

Customizing font styles for text sections

To apply a different font style to a specific section of the content:

1. Select the text that you want to customize.
2. In the editor’s toolbar, open the font name drop-down menu.
3. Choose the desired font style to apply it to the selected text.
4. Similarly, you can change the font size by selecting the desired size from the font size drop-down menu.

This will update the font style and size for the highlighted section of text, allowing customization within the content of the Rich Text Editor.

FontName DropDowns

The following table lists the default font name and width of the FontFamily dropdown and the available list of font names.

Default Key	Default Value
default	null
width	72px
items	{ text: ‘Default’, value: ‘’ },{ text: ‘Segoe UI’, value: ‘Segoe UI’ },{ text: ‘Arial’, value: ‘Arial,Helvetica,sans-serif’ },{ text: ‘Courier New’, value: ‘Courier New,Courier,monospace’ },{ text: ‘Georgia’, value: ‘Georgia,serif’ },{ text: ‘Impact’, value: ‘Impact,Charcoal,sans-serif’ },{ text: ‘Lucida Console’, value: ‘Lucida Console,Monaco,monospace’ },{ text: ‘Tahoma’, value: ‘Tahoma,Geneva,sans-serif’ },{ text: ‘Times New Roman’, value: ‘Times New Roman,Times,serif’ },{ text: ‘Trebuchet MS’, value: ‘Trebuchet MS,Helvetica,sans-serif’ },{ text: ‘Verdana’, value: ‘Verdana,Geneva,sans-serif’ }

FontSize DropDowns

The following table lists the default font size and width of the FontSize dropdown and the available list of font sizes.

Default Key	Default Value
default	null
width	60px.
items	{ text: ‘Default’, value: ‘’ },{ text: ‘8 pt’, value: ‘8pt’ },{ text: ‘10 pt’, value: ‘10pt’ },{ text: ‘12 pt’, value: ‘12pt’ },{ text: ‘14 pt’, value: ‘14pt’ },{ text: ‘18 pt’, value: ‘18pt’ },{ text: ‘24 pt’, value: ‘24pt’ },{ text: ‘36 pt’, value: ‘36pt’ }.

The below sample demonstrate the option to add the font name and font size tools to the toolbar as well as modify the default width of the tools.

CSHTML

@Html.EJS().RichTextEditor("font").ToolbarSettings(e => e.Items((object)ViewBag.items)).FontFamily(t => t.Width("100px")).FontSize(t=>t.Width("40px")).ContentTemplate(@<div>
    <p>
        The Rich Text Editor control is WYSIWYG ('what you see is what you get') editor that provides the best user experience to create and update the content.
        Users can format their content using standard toolbar commands.
    </p>
    <p><b> Key features:</b></p>
    <ul>
        <li><p> Provides &lt; IFRAME &gt; and &lt; DIV &gt; modes </p></li>
        <li><p> Capable of handling markdown editing.</p></li>
        <li><p> Contains a modular library to load the necessary functionality on demand.</p></li>
        <li><p> Provides a fully customizable toolbar.</p></li>
        <li><p> Provides HTML view to edit the source directly for developers.</p></li>
        <li><p> Supports third - party library integration.</p></li>
        <li><p> Allows preview of modified content before saving it.</p></li>
        <li><p> Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
        <li><p> Contains undo / redo manager.</p></li>
        <li><p> Creates bulleted and numbered lists.</p></li>
    </ul>
</div>).Render()

Controller.cs

public class HomeController : Controller
{
    public ActionResult Index()
    {
        ViewBag.items = new[] { "FontName", "FontSize" };
        return View();
    }
}

Custom Fonts and Size

The Rich Text Editor provides custom fonts and sizes with the existing list.

If you want to add additional font names and font sizes to font drop-down, pass the font information as JSON data to the items field of FontSize and FontFamily property.

CSHTML

@Html.EJS().RichTextEditor("custom-font").ToolbarSettings(e => e.Items((object)ViewBag.toolbar)).FontFamily(f => f.Width("80px").default("Arial").Items((object)ViewBag.fontFamilyItems)).FontSize(f => f.Width("60px").default("10 px").Items((object)ViewBag.fontSizeItems)).ContentTemplate(@<div>
    <p>
        The Rich Text Editor control is WYSIWYG ('what you see is what you get') editor that provides the best user experience to create and update the content.
        Users can format their content using standard toolbar commands.
    </p>
    <p><b> Key features:</b></p>
    <ul>
        <li><p> Provides &lt; IFRAME &gt; and &lt; DIV &gt; modes </p></li>
        <li><p> Capable of handling markdown editing.</p></li>
        <li><p> Contains a modular library to load the necessary functionality on demand.</p></li>
        <li><p> Provides a fully customizable toolbar.</p></li>
        <li><p> Provides HTML view to edit the source directly for developers.</p></li>
        <li><p> Supports third - party library integration.</p></li>
        <li><p> Allows preview of modified content before saving it.</p></li>
        <li><p> Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
        <li><p> Contains undo / redo manager.</p></li>
        <li><p> Creates bulleted and numbered lists.</p></li>
    </ul>
</div>).Render()

Controller.cs

public class HomeController : Controller
{
    public ActionResult Index()
    {
        object size1 = new
        {
            text = "8 px",
            value = "8px"
        };
        object size2 = new
        {
            text = "10 px",
            value = "10px"
        };
        object size3 = new
        {
            text = "12 px",
            value = "12px"
        };
        object size4 = new
        {
            text = "14 px",
            value = "14px"
        };
        object size5 = new
        {
            text = "42 px",
            value = "42px"
        };
        object item1 = new
        {
            text = "Segoe UI",
            value = "Segoe UI"
        };
        object item2 = new
        {
            text = "Arial",
            value = "Arial,Helvetica,sans-serif"
        };
        object item3 = new
        {
            text = "Courier New",
            value = "Courier New,Courier,monospace"
        };
        object item4 = new
        {
            text = "Georgia",
            value = "Georgia,serif"
        };
        object item5 = new
        {
            text = "Impact",
            value = "Impact,Charcoal,sans-serif"
        };
        object item6 = new
        {
            text = "Calibri Light",
            value = "CalibriLight"
        };

        ViewBag.items = new[] { "FontName", "FontSize" };
        ViewBag.fontFamilyItems = new[] { item1, item2, item3, item4, item5, item6 };
        ViewBag.fontSizeItems = new[] { size1, size2, size3, size4, size5 };
        return View();
    }

}

Font and background color

If you want to apply font color or background color for a selected content of Rich Text Editor you can use font color and background color tools.

The Rich Text Editor provides customs font color and background color with the existing list through the colorCode field of FontColor and BackgroundColor.

FontColor and BackgroundColor property has two mode Picker and Palette. Palette mode has predefined set of colorCode and in picker mode, we have provided with more colors. Through modeSwitcher, you can switch between these two options.

CSHTML

@Html.EJS().RichTextEditor("edit-color").ToolbarSettings(e => e.Items((object)ViewBag.items)).FontColor(f => f.ModeSwitcher(true)).BackgroundColor(b => b.ModeSwitcher(true)).ContentTemplate(@<div>
    <p>
        The Rich Text Editor control is WYSIWYG ('what you see is what you get') editor that provides the best user experience to create and update the content.
        Users can format their content using standard toolbar commands.
    </p>
    <p><b> Key features:</b></p>
    <ul>
        <li><p> Provides &lt; IFRAME &gt; and &lt; DIV &gt; modes </p></li>
        <li><p> Capable of handling markdown editing.</p></li>
        <li><p> Contains a modular library to load the necessary functionality on demand.</p></li>
        <li><p> Provides a fully customizable toolbar.</p></li>
        <li><p> Provides HTML view to edit the source directly for developers.</p></li>
        <li><p> Supports third - party library integration.</p></li>
        <li><p> Allows preview of modified content before saving it.</p></li>
        <li><p> Handles images, hyperlinks, video, hyperlinks, uploads, etc.</p></li>
        <li><p> Contains undo / redo manager.</p></li>
        <li><p> Creates bulleted and numbered lists.</p></li>
    </ul>
</div>).Render()

Controller.cs

public class HomeController : Controller
{
    public ActionResult Index()
    {
        ViewBag.items = new[] { "FontColor", "BackgroundColor" };
        return View();
    }
}

Editor content styles

By default, the content styles of the Rich Text Editor are not returned when retrieving HTML value from the editor. So, the styles are not applied when using HTML values outside of the editor. To get the styles to the Rich Text Editor’s content for your application, copy and use the styles listed below directly in your application. They are used in the UI elements of the Rich Text Editor.

NOTE

Make sure to add a CSS class ‘e-rte-content’ to the content container.

.e-rte-content p {
  margin: 0 0 10px;
  margin-bottom: 10px;
}

.e-rte-content li {
  margin-bottom: 10px;
}

.e-rte-content h1 {
  font-size: 2.17em;
  font-weight: 400;
  line-height: 1;
  margin: 10px 0;
}

.e-rte-content h2 {
  font-size: 1.74em;
  font-weight: 400;
  margin: 10px 0;
}

.e-rte-content h3 {
  font-size: 1.31em;
  font-weight: 400;
  margin: 10px 0;
}

.e-rte-content h4 {
  font-size: 1em;
  font-weight: 400;
  margin: 0;
}

.e-rte-content h5 {
  font-size: 00.8em;
  font-weight: 400;
  margin: 0;
}

.e-rte-content h6 {
  font-size: 00.65em;
  font-weight: 400;
  margin: 0;
}

.e-rte-content blockquote {
  margin: 10px 0;
  margin-left: 0;
  padding-left: 5px;
}

.e-rte-content pre {
  background-color: inherit;
  border: 0;
  border-radius: 0;
  color: #333;
  font-size: inherit;
  line-height: inherit;
  margin: 0 0 10px;
  overflow: visible;
  padding: 0;
  white-space: pre-wrap;
  word-break: inherit;
  word-wrap: break-word;
}

.e-rte-content strong, .e-rte-content b {
  font-weight: 700;
}

.e-rte-content a {
  text-decoration: none;
  -webkit-user-select: auto;
  -ms-user-select: auto;
  user-select: auto;
}

.e-rte-content a:hover {
  text-decoration: underline;
}

.e-rte-content h3 + h4,
.e-rte-content h4 + h5,
.e-rte-content h5 + h6 {
  margin-top: 00.6em;
}

.e-rte-content .e-rte-image.e-imgbreak {
  border: 0;
  cursor: pointer;
  display: block;
  float: none;
  margin: 5px auto;
  max-width: 100%;
  position: relative;
}

.e-rte-content .e-rte-image {
  border: 0;
  cursor: pointer;
  display: block;
  float: none;
  margin: auto;
  max-width: 100%;
  position: relative;
}

.e-rte-content .e-rte-image.e-imginline {
  display: inline-block;
  float: none;
  margin-left: 5px;
  margin-right: 5px;
  max-width: calc(100% - (2 * 5px));
  vertical-align: bottom;
}

.e-rte-content .e-rte-image.e-imgcenter {
  cursor: pointer;
  display: block;
  float: none;
  margin: 5px auto;
  max-width: 100%;
  position: relative;
}

.e-rte-content .e-rte-image.e-imgleft {
  float: left;
  margin: 0 5px 0 0;
  text-align: left;
}

.e-rte-content .e-rte-image.e-imgright {
  float: right;
  margin: 0 0 0 5px;
  text-align: right;
}

.e-rte-content .e-rte-img-caption {
  display: inline-block;
  margin: 5px auto;
  max-width: 100%;
  position: relative;
}

.e-rte-content .e-rte-img-caption.e-caption-inline {
  display: inline-block;
  margin: 5px auto;
  margin-left: 5px;
  margin-right: 5px;
  max-width: calc(100% - (2 * 5px));
  position: relative;
  text-align: center;
  vertical-align: bottom;
}

.e-rte-content .e-rte-img-caption.e-imgcenter {
  display: block;
}

.e-rte-content .e-rte-img-caption .e-rte-image.e-imgright,
.e-rte-content .e-rte-img-caption .e-rte-image.e-imgleft {
  float: none;
  margin: 0;
}

.e-rte-content .e-rte-table {
  border-collapse: collapse;
  empty-cells: show;
}

.e-rte-content .e-rte-table td,
.e-rte-content .e-rte-table th {
  border: 1px solid #bdbdbd;
  height: 20px;
  min-width: 20px;
  padding: 2px 5px;
  vertical-align: middle;
}

.e-rte-content .e-rte-table.e-dashed-border td,
.e-rte-content .e-rte-table.e-dashed-border th {
  border-style: dashed;
}

.e-rte-content .e-rte-img-caption .e-img-inner {
  box-sizing: border-box;
  display: block;
  font-size: 16px;
  font-weight: initial;
  margin: auto;
  opacity: .9;
  position: relative;
  text-align: center;
  width: 100%;
}

.e-rte-content .e-rte-img-caption .e-img-wrap {
  display: inline-block;
  margin: auto;
  padding: 0;
  width: 100%;
}

.e-rte-content blockquote {
  border-left: solid 2px #333;
}

.e-rte-content a {
  color: #2e2ef1;
}

.e-rte-content .e-rte-table th {
  background-color: #e0e0e0;
}

See Also

• How to add google fonts to the font family
• How to customize the placeholder