Thank you for your answer. I am creating the chart series in code, and cannot set the .LabelSettings.Visibility, because I get an exception that is in a read only mode.

Here is the code snipped:

private void SetChart(XamDataChart chart)
        {
            var data = CreateData();

            var xAxis = new CategoryXAxis();
            var yAxis = new NumericYAxis();

            xAxis.ItemsSource = data;
            
            chart.HorizontalZoomable = true;
            chart.HorizontalZoombarVisibility = Visibility.Visible;

            var series = new LineSeries();
            series.ItemsSource = data;
            series.XAxis = xAxis;
            series.YAxis = yAxis;
            series.MarkerType = MarkerType.None;

            chart.Series.Add(series);

            chart.Axes.Add(xAxis);
            chart.Axes.Add(yAxis);

            //Throws exception: Cannot set property on object '.AxisLabelSettings' because it is in a read only state.
            //xAxis.LabelSettings.Visibility = Visibility.Collapsed;

            chart.WindowRect = new Rect(0.25, 1, 0.1, 1);
        }

Attached is the whole sample project.

Hello Markus,

The AxisLabelSettings object implements the abstract class Freezable, and when in use, this object is frozen. This means that each of the properties that exist on the LabelSettings property of an axis cannot be modified directly. Instead of modifying the visibility like you are currently doing, I would recommend using the following code instead:

AxisLabelSettings settings = new AxisLabelSettings(){ Visibility = Visibility.Collapsed};
xAxis.LabelSettings = settings;

I have verified that this works to significantly reduce the space between your XAxis and the zoom bar of the XamDataChart in the sample project you have sent.

Please let me know if you have any other questions or concerns on this matter.

Sincerely,
Andrew
Associate Developer