To change the language of your DNN, please modify the CuteEditor section of your DNN.

<add name = "FtbHtmlEditorProvider"
                type = "DotNetNuke.HtmlEditor.FtbHtmlEditorProvider, DotNetNuke.FtbHtmlEditorProvider"                   
              providerPath = "~\Providers\HtmlEditorProviders\FtbHtmlEditorProvider\"
                />
        <add name="CEHtmlEditorProvider"
    type="DotNetNuke.HtmlEditor.CEHtmlEditorProvider, DotNetNuke.CEHtmlEditorProvider"
    providerPath="~\Providers\HtmlEditorProviders\CEHtmlEditorProvider\CuteSoft_Client\CuteEditor\"
    UseDNNRoleASFileNamePrefix="false"  
    UseDNNRootImageDirectory="true"
    RemoveServerNamesFromUrl="true"
    UseDNNDefaultWidth="true"              
    ConvertHTMLTagstoLowercase="true"
    UseRelativeLinks="true"
    UseHTMLEntities="true"
    RenderRichDropDown="true"
    UseSimpleAmpersand="false"
    CustomCulture="de-DE"

 ..............

 

/>

 

If you want to dynamically switch languages for Cute Editor in dontnetnuke 4, please follow the step below:

 

Open the CEHtmlEditorProvider.vb.
 
And find the following code:
 
If Not Null.IsNull(objProvider.Attributes("CustomCulture")) Then
     _CustomCulture = objProvider.Attributes("CustomCulture")
     cntlCE.CustomCulture = _CustomCulture
 End If
 
The above code allows you change the editor culture by web.config.
 
You can change the above code to change the culture dynamically.