CartesianChartGrid for X is not working

I'm trying to draw GridLines on X axis of RadCartesianChartView with this code:

CartesianChartGrid grid = new CartesianChartGrid();
            grid.MajorXLinesRenderMode = GridLineRenderMode.All;
            grid.LineThickness = 5;
            grid.LineColor = ContextCompat.GetColor(Activity, Resource.Color.red);
            grid.MajorLinesVisibility = GridLineVisibility.X; 
            _chart.Grid = grid;

Instead, I get horizontal lines from Y axis.

The grid also ignores LineThickness and LineColor.

This is the code for X axis:

DateTimeCategoricalAxis horizontalAxis = new DateTimeCategoricalAxis();
            horizontalAxis.LineThickness = 5;
            horizontalAxis.LabelSize = 32;
            horizontalAxis.MajorTickInterval = 7;
            horizontalAxis.LabelFormat = "MMM dd";
            PaletteEntry hAxisEntry = customPalette.GetEntry(ChartPalette.HorizontalAxisFamily);
            hAxisEntry.SetCustomValue(CategoricalAxis.LineColorKey, Resources.GetString(Resource.Color.black));
            hAxisEntry.SetCustomValue(CategoricalAxis.LabelColor, Resources.GetString(Resource.Color.dark_blue));
            hAxisEntry.SetCustomValue(CategoricalAxis.TickColorKey, Resources.GetString(Resource.Color.black));