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Labels

The labels contain the plot title and the axis labels. You can set the main title for the chart using the Text property in the LabelArea class.

You can set the text, alignment, and other formatting properties for the axis labels. You can use the IndexAxis.Title property in the plot area class to set the title for the x-axis. Whereas ValueAxis.Title property is used to set the title in the plot area for the y-axis. For more formatting, use TitleTextFill and TitleTextFont properties. You can also set the TitleOffset, if required. Here, the label text can also be bound to a datasource with the TitleDataSource and TitleDataField properties.

For more details, refer to the following classes:

Using Code

The following examples show how to set axis labels in different ways.

Example 1: Set a title and formatting for the axis labels.

// Create a plot area
 YPlotArea plotArea = new YPlotArea();
 plotArea.Location = new PointF(0.2f, 0.2f);
 plotArea.Size = new SizeF(0.6f, 0.6f);
 // Set the title and formatting in the plot area for the x-axis
 plotArea.XAxis.Title = "Categories";
 plotArea.XAxis.TitleTextFont = new System.Drawing.Font("Arial", 12);
 plotArea.XAxis.TitleTextFill = new FarPoint.Web.Chart.SolidFill(Drawing.Color.Crimson);
 plotArea.XAxis.TitleVisible = true;
 // Set the title and formatting in the plot area for the y-axis
 plotArea.YAxis[0].Title = "Values";
 plotArea.YAxes[0].TitleTextFont = new System.Drawing.Font("Comic Sans MS", 12);
 plotArea.YAxes[0].TitleTextFill = new FarPoint.Web.Chart.SolidFill(Drawing.Color.Chartreuse);
' Create a plot area
 Dim plotArea As New FarPoint.Web.Chart.YPlotArea()
 plotArea.Location = New PointF(0.2F, 0.2F)
 plotArea.Size = New SizeF(0.6F, 0.6F)
 ' Set the title and formatting in the plot area for the x-axis
 plotArea.XAxis.Title = "Categories"
 plotArea.XAxis.TitleTextFont = New System.Drawing.Font("Arial", 12)
 plotArea.XAxis.TitleTextFill = New FarPoint.Web.Chart.SolidFill(Drawing.Color.Crimson)
 plotArea.XAxis.TitleVisible = True
 ' Set the title and formatting in the plot area for the y-axis
 plotArea.YAxis(0).Title = "Values"
 plotArea.YAxes(0).TitleTextFont = New System.Drawing.Font("Comic Sans MS", 12)
 plotArea.YAxes(0).TitleTextFill = New FarPoint.Web.Chart.SolidFill(Drawing.Color.Chartreuse)

Example 2: Set axis labels from the DataSource.

DataTable table = new DataTable();
 DataRow dr = table.NewRow();
 table.Columns.Add("Category");
 dr[0] = "03:00-04:00";
 table.Rows.Add(dr);
 dr = table.NewRow();
 dr[0] = "04:00-05:00";
 table.Rows.Add(dr);
 dr = table.NewRow();
 dr[0] = "06:00-07:00";
 table.Rows.Add(dr);
 dr = table.NewRow();
 dr[0] = "07:00-08:00";
 table.Rows.Add(dr);
 // Create a bar series
 BarSeries series = new BarSeries();
 series.SeriesName = "Series 0";
 series.Values.Add(2.0);
 series.Values.Add(4.0);
 series.Values.Add(3.0);
 series.Values.Add(5.0);
 // Show Axis Labels from the DataSource
 series.CategoryNames.DataField = "Category";
 series.CategoryNames.DataSource = table;
Dim table As DataTable = New DataTable()
Dim dr As DataRow = table.NewRow()
table.Columns.Add("Category")
dr(0) = "03:00-04:00"
table.Rows.Add(dr)
dr = table.NewRow()
dr(0) = "04:00-05:00"
table.Rows.Add(dr)
dr = table.NewRow()
dr(0) = "06:00-07:00"
table.Rows.Add(dr)
dr = table.NewRow()
dr(0) = "07:00-08:00"
table.Rows.Add(dr) 
' Create a bar series
Dim series As BarSeries = New BarSeries()
series.SeriesName = "Series 0"
series.Values.Add(2.0)
series.Values.Add(4.0)
series.Values.Add(3.0)
series.Values.Add(5.0)
' Show Axis Labels from the DataSource
series.CategoryNames.DataField = "Category"
series.CategoryNames.DataSource = table

Using the Chart Designer

  1. Select the PlotArea from the Format menu.

  2. Select the XAxis and YAxis Collections

  3. Set the Title and other properties, as needed.

  4. Select Apply and OK to close the Chart Designer.