Setting Grid Dot Size and Add Margin or Space in first Chart Value

[Mozart]

Hello, i have a Line Chart that needed to do some formatting.What i want is to change the thickness of Grid Dot Size and add a little margin / padding on first Chart Value.  Please see attachment to see the details.

[Dess | Tech Support Engineer, Principal]

Hello, Mozart, 

The CategoricalAxis.PlotMode property determines the AxisPlotMode used to by the axis to plot the data. Possible values are BetweenTicks, OnTicks, OnTicksPadded. BetweenTicks plots points in the middle of the range, defined by two ticks. OnTicks plots the points over each tick. OnTicksPadded plots points over each tick with half a step padding applied on both ends of the axis. 

            LineSeries lineSeries = new LineSeries();
            lineSeries.CombineMode = ChartSeriesCombineMode.Stack;
            lineSeries.DataPoints.Add(new CategoricalDataPoint(20, "Jan"));
            lineSeries.DataPoints.Add(new CategoricalDataPoint(22, "Apr"));
            lineSeries.DataPoints.Add(new CategoricalDataPoint(12, "Jul"));
            lineSeries.DataPoints.Add(new CategoricalDataPoint(19, "Oct"));
            this.radChartView1.Series.Add(lineSeries); 
            CategoricalAxis horizontalAxis = lineSeries.HorizontalAxis as CategoricalAxis;
            if (horizontalAxis != null)
            {
                horizontalAxis.PlotMode = AxisPlotMode.BetweenTicks; 
            }

As to the dots on the grid lines, you can set the CartesianGrid.BorderWidth property to the desired value:

            CartesianArea area = this.radChartView1.GetArea<CartesianArea>();
            area.ShowGrid = true;
            CartesianGrid grid = area.GetGrid<CartesianGrid>();
            grid.DrawHorizontalFills = false;
            grid.DrawVerticalStripes = false;
            grid.BorderWidth = 3;
            grid.BorderDashStyle = System.Drawing.Drawing2D.DashStyle.Dot;

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik