public partial class MainWindow {
    public MainWindow() {
        InitializeComponent();
        DevExpress.Utils.Localization.XtraLocalizer.QueryLocalizedString += XtraLocalizer_QueryLocalizedString;
    }
    void XtraLocalizer_QueryLocalizedString(object sender, XtraLocalizer.QueryLocalizedStringEventArgs e) {
        e.Value = $"{e.StringIDType.Name}.{e.StringID}";
    }
}

Public Partial Class MainWindow
    Public Sub New()
        InitializeComponent()
        DevExpress.Utils.Localization.XtraLocalizer.QueryLocalizedString += AddressOf XtraLocalizer_QueryLocalizedString
    End Sub

    Private Sub XtraLocalizer_QueryLocalizedString(ByVal sender As Object, ByVal e As XtraLocalizer.QueryLocalizedStringEventArgs)
        e.Value = $"{e.StringIDType.Name}.{e.StringID}"
    End Sub
End Class

public partial class MainWindow : Window {
    public MainWindow() {
        // ...
    }
    static MainWindow() {
        GridControlLocalizer.Active = new CustomDXGridLocalizer();
    }
}
public class CustomDXGridLocalizer : GridControlLocalizer {
    protected override void PopulateStringTable() {
        base.PopulateStringTable();
        // Changes the caption of the menu item used to invoke the Total Summary Editor.
        AddString(GridControlStringId.MenuFooterCustomize, "Customize Totals");

        // Changes the Total Summary Editor's default caption.
        AddString(GridControlStringId.TotalSummaryEditorFormCaption, "Totals Editor");

        // Changes the default caption of the tab page that lists total summary items.
        AddString(GridControlStringId.SummaryEditorFormItemsTabCaption, "Summary Items");
    }
}

Public Partial Class MainWindow
    Inherits Window

    Public Sub New()
    ' ...
    End Sub

    Private Shared Sub New()
        GridControlLocalizer.Active = New CustomDXGridLocalizer()
    End Sub
End Class

Public Class CustomDXGridLocalizer
    Inherits GridControlLocalizer

    Protected Overrides Sub PopulateStringTable()
        MyBase.PopulateStringTable()
        ' Changes the caption of the menu item used to invoke the Total Summary Editor.
        AddString(GridControlStringId.MenuFooterCustomize, "Customize Totals")

        ' Changes the Total Summary Editor's default caption.
        AddString(GridControlStringId.TotalSummaryEditorFormCaption, "Totals Editor")

        ' Changes the default caption of the tab page that lists total summary items.
        AddString(GridControlStringId.SummaryEditorFormItemsTabCaption, "Summary Items")
    End Sub
End Class

public partial class MainWindow {
    public MainWindow() {
        // ...
    }
    static MainWindow() {
         GridControlLocalizer.Active = new CustomDXGridLocalizer();
    }
}
public class CustomDXGridLocalizer : GridControlResXLocalizer {
    protected override void PopulateStringTable() {
        base.PopulateStringTable();
        AddString(GridControlStringId.MenuFooterSum, "合計");
        AddString(GridControlStringId.MenuFooterMin, "最小値");
        AddString(GridControlStringId.MenuFooterMax, "最大値");
    }
}

Public Partial Class MainWindow
    Public Sub New()
        ' ...
    End Sub

    Private Shared Sub New()
        GridControlLocalizer.Active = New CustomDXGridLocalizer()
    End Sub
End Class

Public Class CustomDXGridLocalizer
    Inherits GridControlResXLocalizer

    Protected Overrides Sub PopulateStringTable()
        MyBase.PopulateStringTable()
        AddString(GridControlStringId.MenuFooterSum, "合計")
        AddString(GridControlStringId.MenuFooterMin, "最小値")
        AddString(GridControlStringId.MenuFooterMax, "最大値")
    End Sub
End Class

<dxg:GridControl x:Name="grid" AutoGenerateColumns="AddNew">
    <dxg:GridControl.View>
        <dxg:TableView x:Name="view" AutoWidth="True"/>
    </dxg:GridControl.View>
</dxg:GridControl>
<StackPanel Grid.Row="1" Orientation="Horizontal">
    <TextBox x:Name="textBox" Width="200" KeyDown="textBox_KeyDown" Margin="3,3,3,3"/>
    <Button Content="Apply" Click="button_Click" Margin="0,3,0,3"/>
</StackPanel>

void LocalizeGroupPanelText() {
    var NewText = textBox.Text;
    var localization = new GridRuntimeStringCollection();
    localization.Add(new RuntimeStringIdInfo(GridControlRuntimeStringId.GridGroupPanelText, NewText));
    view.RuntimeLocalizationStrings = localization;
}
void button_Click(object sender, RoutedEventArgs e) {
    LocalizeGroupPanelText();
}

void textBox_KeyDown(object sender, System.Windows.Input.KeyEventArgs e) {
    if (e.Key == System.Windows.Input.Key.Enter) {
        LocalizeGroupPanelText();
    }
}

Private Sub LocalizeGroupPanelText()
    Dim NewText = textBox.Text
    Dim localization = New GridRuntimeStringCollection()
    localization.Add(New RuntimeStringIdInfo(GridControlRuntimeStringId.GridGroupPanelText, NewText))
    view.RuntimeLocalizationStrings = localization
End Sub

Private Sub button_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
    LocalizeGroupPanelText()
End Sub

Private Sub textBox_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Input.KeyEventArgs)
    If e.Key = System.Windows.Input.Key.Enter Then
        LocalizeGroupPanelText()
    End If
End Sub