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Font Sizes

You can repopulate the Font Size dropdown with the sizes from 1 to 7 (these are the browser supported values). You can set the FontSizes collection declaratively, programmatically and using the ToolsFile.

Adding to FontSizes Collection Declaratively

<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1">
    <FontSizes>
        <telerik:EditorFontSize Value="1" />
        <telerik:EditorFontSize Value="3" />
        <telerik:EditorFontSize Value="5" />
    </FontSizes>
</telerik:RadEditor>

Adding to FontSizes Collection Programmatically

Use the FontSizes collection Add() method to include new FontSizes in the list.

RadEditor1.FontSizes.Add("1");
RadEditor1.FontSizes.Add("3");
RadEditor1.FontSizes.Add("5");
RadEditor1.FontSizes.Add("1")
RadEditor1.FontSizes.Add("3")
RadEditor1.FontSizes.Add("5")

Using ToolsFile.xml

You can also populate the FontSizes dropdown using the ToolsFile, as shown in the example below:

<root>  
    <tools name="MainToolbar" enabled="true">    
        <tool name="FontSize" />  
    </tools>  
    <fontSizes>    
        <item>1</item>    
        <item>3</item>    
        <item>5</item>  
    </fontSizes>
</root>

If you want to apply font sizes in pixels (px) or in points (pt) then use the Real Font Size dropdown.