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All required classes for localization are defined in the Telerik.WinControls.UI.Localization namespace. To localize RadMap to display text in a specific language:

  • Start by creating a descendant of the RadMapLocalizationProvider class.

  • Override the GetLocalizedString(string id) method and provide a translation for the label. If a translation is not provided, the default value will be returned. This behavior is guaranteed by the call to the base GetLocalizedString method in the default clause of the switch statement.

Below is a sample implementation of an English localization provider:

Localizing RadMap's Strings

public class EnglishMapLocalizationProvider : Telerik.WinControls.UI.Localization.RadMapLocalizationProvider
    public override string GetLocalizedString(string id)
        switch (id)
            case RadMapStringId.SearchBarNullText:
                return "Search";
            case RadMapStringId.ScaleIndicatorMiles:
                return "mi";
            case RadMapStringId.ScaleIndicatorKilometers:
                return "km";
            case RadMapStringId.ScaleIndicatorFeet:
                return "ft";
            case RadMapStringId.ScaleIndicatorMeters:
                return "m";
            case RadMapStringId.BingMapsAerialView:
                return "Aerial";
            case RadMapStringId.BingMapsRoadView:
                return "Road";
            case RadMapStringId.NavigationBarShowViewLabels:
                return "Show labels";

        return string.Empty;

Public Class EnglishMapLocalizationProvider
    Inherits Telerik.WinControls.UI.Localization.RadMapLocalizationProvider
    Public Overrides Function GetLocalizedString(id As String) As String
        Select Case id
            Case RadMapStringId.SearchBarNullText
                Return "Search"
            Case RadMapStringId.ScaleIndicatorMiles
                Return "mi"
            Case RadMapStringId.ScaleIndicatorKilometers
                Return "km"
            Case RadMapStringId.ScaleIndicatorFeet
                Return "ft"
            Case RadMapStringId.ScaleIndicatorMeters
                Return "m"
            Case RadMapStringId.BingMapsAerialView
                Return "Aerial"
            Case RadMapStringId.BingMapsRoadView
                Return "Road"
            Case RadMapStringId.NavigationBarShowViewLabels
                Return "Show labels"
        End Select
        Return String.Empty
    End Function
End Class

To apply the custom localization provider, instantiate and assign it to the current localization provider:

Assigning the Current Localization Provider

public MapLocalization()
    Telerik.WinControls.UI.Localization.RadMapLocalizationProvider.CurrentProvider = new EnglishMapLocalizationProvider();

Public Sub New()
    Telerik.WinControls.UI.Localization.RadMapLocalizationProvider.CurrentProvider = New EnglishMapLocalizationProvider()
End Sub

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