Histogram Control

Data Binding

This page describes how to data bind the histogram control. The histogram control of the .Net Analytics package is of the following type:

Histogram (HistogramChart)

The first step is to include the necessary namespaces for the controls and add a chart.

Programmatically Databind a Chart

Below, we will programmatically databind a Hisstogram chart (named hcChart in the examples below). You can also use the Properties window to graphically access the databound properties for the chart:

[Visual Basic]

' Add some data to the dataset dsDataSet - could also have dataset bound 
                  to a database

                  DataRow drRow = dsDataSet.Tables(0).NewRow()

                  drRow(0) = 0.134

                  dsDataSet.Tables(0).Rows.Add(drRow)

                  drRow = dsDataSet.Tables(0).NewRow()

                  drRow(0) = 0.423

                  dsDataSet.Tables(0).Rows.Add(dr)

                  drRow = dsDataSet.Tables(0).NewRow()

                  drRow(0) = 0.314

                  dsDataSet.Tables(0).Rows.Add(drRow)

                  

                  ' Programmatically set the databound fields

                  hcChart.DataSource = dsDataSet.Tables(0)

                  hcChart.DataValueField = "ValueColumn"

[Visual C#]

// Add some data to the dataset dsDataSet - could also have dataset bound to 
                  a database

                  DataRow drRow = dsDataSet.Tables[0].NewRow();

                  drRow[0] = 0.134;

                  dsDataSet.Tables[0].Rows.Add(drRow);

                  drRow = dsDataSet.Tables[0].NewRow();

                  drRow[0] = 0.423;

                  dsDataSet.Tables[0].Rows.Add(dr);

                  drRow = dsDataSet.Tables[0].NewRow();

                  drRow[0] = 0.314;

                  dsDataSet.Tables[0].Rows.Add(drRow);

                  

                  // Programmatically set the databound fields

                  hcChart.DataSource = dsDataSet.Tables[0];

                  hcChart.DataValueField = "ValueColumn";

After the data binding, and the number of cells/bins set to 2, the resulting chart should look similar to the following: