Get the content area object of RadEditor with a single JavaScript function regardless of the ContentAreaMode type

Description

The solution offers a handy common function which gives you reference to the content area object of RadEditor regardless of the ContentAreaMode type.

Solution

Sometimes you may have multiple editors on the page with different content areas and you may need a common way of obtaining reference to these different editable DIV or Iframe content areas.

The solution below solves this problem by providing a common function for this:

ASP.NET

RadEditor with Div content area:
<telerik:RadEditor ID="RadEditorDivContentArea" ContentAreaMode="Div" runat="server" OnClientLoad="GetContent">
    <Content><em>Div Based Content Area</em></Content>
</telerik:RadEditor><br />
 
RadEditor with Iframe content area:
<telerik:RadEditor ID="RadEditorIframeContentArea"  ContentAreaMode="Iframe" runat="server" OnClientLoad="GetContent">
    <Content><em>Iframe Based Content Area</em></Content>
</telerik:RadEditor>
 
<script>
    function GetContent(sender) {
        alert(getContentElement(sender).innerHTML);
    }
 
    function getContentElement(editor) {
        if (!editor) {
            return null;
        }
        var contentElement = null;
        if ($telerik.$(editor.get_contentAreaElement()).is("div")) {
            contentElement = editor.get_contentAreaElement();
        } else {
            contentElement = editor.get_contentArea();
        }
        return contentElement;
    }
</script>