Localization

Updated on May 7, 2026

To change the default English localization provider you should use the CurrentProvider static property of the RichTextBoxLocalizationProvider class. For example, you can load the string from a XML file like this:

C#

RichTextBoxLocalizationProvider.CurrentProvider = RichTextBoxLocalizationProvider.FromFile(@"C:\RichTextBoxStrings.xml");
        

VB.NET

RichTextBoxLocalizationProvider.CurrentProvider = RichTextBoxLocalizationProvider.FromFile("C:\RichTextBoxStrings.xml")

You can download a XML file that contains all the currently used strings from here: Strings file

As of R2 2015 RichTextBoxLocalizationProvider contains all strings related to the RadRichTextEditorRibbonUI as well.

Another approach is to create a custom localization provider class which inherits RichTextBoxLocalizationProvider. In it you should just override the GetLocalizedString method and return the localized string depending on current id.

C#

public class MyRichTextBoxLocalizationProvider : RichTextBoxLocalizationProvider
{
    public override string GetLocalizedString(string id)
    {
        switch (id)
        {
            case "Documents_FindReplaceDialog_FindNext":
                return "Weitersuchen";
            case "Documents_FindReplaceDialog_Header":
                return "Suchen und Ersetzen";
            case "Documents_FindReplaceDialog_Replace":
                return "Ersetzen";
            case "Documents_FindReplaceDialog_ReplaceAll":
                return "Alle ersetzen";
            case "Documents_FindReplaceDialog_ReplaceWith":
                return "Ersetzen durch";
            case "Documents_FindReplaceDialog_TextToFind":
                return "Suchen nach";
            case "Documents_FindReplaceDialog_RestartSearch":
                return "Zeigen unten die Multifunktionsleiste";
            case "Documents_FindReplaceDialog_SearchedTextNotFound":
                return "Der Suchbegriff wurde nicht gefunden";
            case "RibbonUI_BackstageButtonPrint":
                return "Druck";
        }
    
        return base.GetLocalizedString(id);
    }
}

VB.NET

Public Class MyRichTextBoxLocalizationProvider
    Inherits RichTextBoxLocalizationProvider

    Public Overrides Function GetLocalizedString(ByVal id As String) As String
        Select Case id
            Case "Documents_FindReplaceDialog_FindNext"
                Return "Weitersuchen"
            Case "Documents_FindReplaceDialog_Header"
                Return "Suchen und Ersetzen"
            Case "Documents_FindReplaceDialog_Replace"
                Return "Ersetzen"
            Case "Documents_FindReplaceDialog_ReplaceAll"
                Return "Alle ersetzen"
            Case "Documents_FindReplaceDialog_ReplaceWith"
                Return "Ersetzen durch"
            Case "Documents_FindReplaceDialog_TextToFind"
                Return "Suchen nach"
            Case "Documents_FindReplaceDialog_RestartSearch"
                Return "Zeigen unten die Multifunktionsleiste"
            Case "Documents_FindReplaceDialog_SearchedTextNotFound"
                Return "Der Suchbegriff wurde nicht gefunden"
            Case "RibbonUI_BackstageButtonPrint"
                Return "Druck"
        End Select

        Return MyBase.GetLocalizedString(id)
    End Function
End Class

The following code snippet shows how you can use the new class:

C#

RichTextBoxLocalizationProvider.CurrentProvider = new MyRichTextBoxLocalizationProvider();

InitializeComponent();

VB.NET

RichTextBoxLocalizationProvider.CurrentProvider = New MyRichTextBoxLocalizationProvider()

InitializeComponent()

It is necessary to specify the RichTextBoxLocalizationProvider. CurrentProvider property before initializing the components.

Figure 1: RichTextBoxLocalizationProvider

Figure 2: Localize RadRichTextEditorRibbonUI