TTMSFNCChartDataGridAdapter

The TTMSFNCChartDataGridAdapter can be used for binding the cells of a TTMSFNCDataGrid with the TTMSFNCChart via the Adapter property.

This adapter is responsible for connecting to the dataset and for loading, displaying and editing the data. The adapter exposes a set of properties for data visualization and manipulation and a series collection that represents the columns. Below is an overview of the available properties and events.

With the BindSeries methods you can add a Series in one call.

Note

Important Notice: This requires TMS FNC UI Pack (separately available at the My Products page)

Properties

Property name	Description
Active	Activates the adapter and displays the data from the dataset when the dataset is active.
AutoCreateSeries	When true, automatically retrieves the fields from the dataset and creates series for each field. (Default True.)
HeaderRow	Can be set to indicate on which row the headers are defined. (Default 0)
Source	The source to retrieve the data from and which contains the series to add.
SynchronizeOnDataGridUpdate	Can be set to update the chart when a cell was edited in the DataGrid. (Default True)

Events

Event name	Description
OnRowToPoint	Event that is triggered when a point was added with all of the available columns filled in. Gives the ability to further customize the point.
OnSetColumnValueIndex	Event that is triggered while going over all the columns to choose the series.
OnSetColumnValueType	Event that is triggered while going over all the columns to choose the type of the field.
OnSynchronized	Event that is triggered when a synchornization is done from the DataGrid data.

TTMSFNCChartDataGridAdapterSource

The adapter source has two properties, the DataGrid which is the TTMSFNCDataGrid to connect with and the Series which is a collection that has the fieldnames for the different values.

TTMSFNCChartDataGridAdapterSeriesItem

The collection item that contains the column index for each value. One item creates a new series in the chart.

The properties can stay -1 except for YValueColumnIndex or YValueHighColumnIndex.

Properties

Property name	Description
YValueColumnIndex	The column index used for the Y-Value of the series.
XValueColumnIndex	Optional, column index used for the X-Value of the series.
XLabelColumnIndex	Optional, column index used for the X-Label of the series.
YValueSecondColumnIndex	Optional, column index used for the Y-ValueSecond in a band type series.
YValueVariableColumnIndex	Optional, column index used for the Y-ValueVariable in e.g. a pie type series.
YValueHighColumnIndex	The column index used for the high value in a multi-point series.
YValueLowColumnIndex	The column index used for the low value in a multi-point series.
YValueOpenColumnIndex	The column index used for the open value in a multi-point series.
YValueCloseColumnIndex	The column index used for the close value in a multi-point series.
YValueMedianColumnIndex	Optional, column index used for the median value in a multi-point series.

Code Example

  // Create a new series for the DataGrid adapter and link it to the chart and DataGrid.
  TMSFNCChart.Adapter :=  TMSFNCChartDataGridAdapter;

  TMSFNCChartDataGridAdapter.Source.DataGrid := TMSFNCDataGrid;

  TMSFNCChartDataGridAdapter.AutoCreateSeries := False;

  s := TMSFNCChartDataGridAdapter.Source.Series.Add;
  s.YValueColumnIndex := 1;
  s.XLabelColumnIndex := 0;

  TMSFNCChartDataGridAdapter.Active := True;