ExecCommand in Rich Text Editor in Blazor RichTextEditor Component

2 Aug 20216 minutes to read

In Rich Text Editor, the ExecuteCommand is used to perform commands for the modification of content in editable area.
The ExecuteCommand will perform the following commands.

Commands	Description	Code snippets
Bold	Bold the selected content in the Rich Text Editor.	await this.RteObj.ExecuteCommandAsync(CommandName.Bold);
Italic	The selected text will be italics.	await this.RteObj.ExecuteCommandAsync(CommandName.Italic);
Underline	Underline the selected text in the Rich Text Editor.	await this.RteObj.ExecuteCommandAsync(CommandName.Underline);
StrikeThrough	Apply single line strike through formatting for the selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.StrikeThrough);
Superscript	Makes the selected text as superscript (higher).	await this.RteObj.ExecuteCommandAsync(CommandName.Superscript);
Subscript	Makes the selected text as subscript (lower).	await this.RteObj.ExecuteCommandAsync(CommandName.Subscript);
Uppercase	Change the case of selected text to upper in the content.	await this.RteObj.ExecuteCommandAsync(CommandName.Uppercase);
Lowercase	Change the case of selected text to lower in the content.	await this.RteObj.ExecuteCommandAsync(CommandName.Lowercase);
FontColor	Apply the specified font color for the selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.FontColor, "Red");
FontName	Apply the specified font name for the selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.FontName, "Impact");
FontSize	Apply the specified font size for the selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.FontSize, "10pt");
BackgroundColor	Apply the specified background color the selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.BackgroundColor, "red");
JustifyCenter	Align the content with center margin.	await this.RteObj.ExecuteCommandAsync(CommandName.JustifyCenter);
JustifyFull	Align the content with justify margin.	await this.RteObj.ExecuteCommandAsync(CommandName.JustifyFull);
JustifyLeft	Align the content with left margin.	await this.RteObj.ExecuteCommandAsync(CommandName.JustifyLeft);
JustifyRight	Align the content with right margin.	await this.RteObj.ExecuteCommandAsync(CommandName.JustifyRight);
CreateLink	Creates a hyperlink to a text or image to a specific location in the content.	await this.RteObj.ExecuteCommandAsync(CommandName.CreateLink, new LinkCommandsArgs() { Text = "Links", Url= "http://", Title = "Link"});}
Indent	Allows to increase the indent level of the content.	await this.RteObj.ExecuteCommandAsync(CommandName.Indent);
InsertHTML	Insert the html content to the current cursor position.	await this.RteObj.ExecuteCommandAsync(CommandName.InsertHTML,"<div>Syncfusion Rich Text Editor
InsertOrderedList	Create a new list item(numbered).	await this.RteObj.ExecuteCommandAsync(CommandName.InsertOrderedList);
InsertUnorderedList	Create a new list item(bulleted).	await this.RteObj.ExecuteCommandAsync(CommandName.InsertUnorderedList);
Outdent	Allows to decrease the indent level of the content.	await this.RteObj.ExecuteCommandAsync(CommandName.Outdent);
Redo	Allows to redo the actions	await this.RteObj.ExecuteCommandAsync(CommandName.Redo);
RemoveFormat	remove all formatting styles (such as bold, italic, underline, color, superscript, subscript, and more) from currently selected text.	await this.RteObj.ExecuteCommandAsync(CommandName.RemoveFormat);
InsertText	Insert text to the current cursor position.	await this.RteObj.ExecuteCommandAsync(CommandName.InsertText, "Inserted text");
InsertImage	Insert an image to the current cursor position.	await this.RteObj.ExecuteCommandAsync(CommandName.InsertImage, new ImageCommandsArgs() { Url = "https://ej2.syncfusion.com/javascript/demos/src/rich-text-editor/images/RTEImage-Feather.png", CssClass = "rte-img" });

Provided support to apply execute commands which do not require direct DOM access.

The following code block demonstrates the usage of the ExecuteCommand in Rich Text Editor.

@using Syncfusion.Blazor.Buttons
@using Syncfusion.Blazor.RichTextEditor

<SfRichTextEditor @ref="@RteObj">
    <p>The Rich Text Editor component 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 <b>IFRAME</b> and <b>DIV</b> 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>
    </ul>
</SfRichTextEditor>
<SfButton Content="Bold" @onclick="@OnBoldCommand" />
<SfButton Content="InsertHTML" @onclick="@OnInsertHtmlCommand" />

@code {
    SfRichTextEditor RteObj;

    private async Task OnBoldCommand()
    {
        await this.RteObj.ExecuteCommandAsync(CommandName.Bold);
    }

    private async Task OnInsertHtmlCommand()
    {
        await this.RteObj.ExecuteCommandAsync(CommandName.InsertHTML, "<div>Syncfusion Rich Text Editor component</div>");
    }
}

The output will be as follows.

You can refer to our Blazor Rich Text Editor feature tour page for its groundbreaking feature representations. You can also explore our Blazor Rich Text Editor example to knows how to render and configure the rich text editor tools.