GrapeCity SPREAD for Windows Forms 12.0J サンプルコード集 > チャート > 選択されたタイミングを取得する(チャート内のオブジェクト) |
チャート上のオブジェクトを選択した場合にはSpreadChartクラスのSelectionChangedイベントが発生します。このイベント内でSelectedObjectを参照することで、チャート内のどのオブジェクトが選択されたかを判断することができます。
[シリーズが選択されました]FarPoint.Win.Chart.SeriesInfo |
[2番目のデータポイントが選択されました]FarPoint.Win.Chart.SeriesInfo |
[シリーズ以外のオブジェクトが選択されました]FarPoint.Win.Chart.LegendArea |
[シリーズ以外のオブジェクトが選択されました]FarPoint.Win.Chart.AxisInfo |
private FarPoint.Win.Spread.Chart.SpreadChart SPChart; private void Form1_Load(object sender, System.EventArgs e) { // データを設定します fpSpread1.Sheets[0].Cells[0, 1].Value = "S1"; fpSpread1.Sheets[0].Cells[0, 2].Value = "S2"; fpSpread1.Sheets[0].Cells[0, 3].Value = "S3"; fpSpread1.Sheets[0].Cells[1, 0].Value = "1Q"; fpSpread1.Sheets[0].Cells[2, 0].Value = "2Q"; fpSpread1.Sheets[0].Cells[3, 0].Value = "3Q"; fpSpread1.Sheets[0].Cells[4, 0].Value = "4Q"; fpSpread1.Sheets[0].Cells[1, 1].Value = 50; fpSpread1.Sheets[0].Cells[2, 1].Value = 30; fpSpread1.Sheets[0].Cells[3, 1].Value = 20; fpSpread1.Sheets[0].Cells[4, 1].Value = 40; fpSpread1.Sheets[0].Cells[1, 2].Value = 30; fpSpread1.Sheets[0].Cells[2, 2].Value = 15; fpSpread1.Sheets[0].Cells[3, 2].Value = 50; fpSpread1.Sheets[0].Cells[4, 2].Value = 20; fpSpread1.Sheets[0].Cells[1, 3].Value = 10; fpSpread1.Sheets[0].Cells[2, 3].Value = 40; fpSpread1.Sheets[0].Cells[3, 3].Value = 25; fpSpread1.Sheets[0].Cells[4, 3].Value = 25; // シリーズを設定します FarPoint.Win.Chart.LineSeries series1 = new FarPoint.Win.Chart.LineSeries(); series1.SeriesNameDataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$B$1:$B$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text); series1.Values.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$B$2:$B$5"); series1.CategoryNames.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text); FarPoint.Win.Chart.LineSeries series2 = new FarPoint.Win.Chart.LineSeries(); series2.SeriesNameDataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$C$1:$C$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text); series2.Values.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$C$2:$C$5"); series2.CategoryNames.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text); FarPoint.Win.Chart.LineSeries series3 = new FarPoint.Win.Chart.LineSeries(); series3.SeriesNameDataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$D$1:$D$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text); series3.Values.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$D$2:$D$5"); series3.CategoryNames.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text); FarPoint.Win.Chart.YPlotArea plotArea = new FarPoint.Win.Chart.YPlotArea(); plotArea.Location = new PointF(0.2f, 0.2f); plotArea.Size = new SizeF(0.55f, 0.6f); plotArea.Series.Add(series1); plotArea.Series.Add(series2); plotArea.Series.Add(series3); // ラベルを設定します FarPoint.Win.Chart.LabelArea label = new FarPoint.Win.Chart.LabelArea(); label.Text = "四半期別"; label.Location = new PointF(0.5f, 0.02f); label.AlignmentX = 0.5f; label.AlignmentY = 0f; // 凡例を設定します FarPoint.Win.Chart.LegendArea legend = new FarPoint.Win.Chart.LegendArea(); legend.Location = new PointF(0.98f, 0.5f); legend.AlignmentX = 1f; legend.AlignmentY = 0.5f; // チャートモデルに各情報を追加します FarPoint.Win.Chart.ChartModel model = new FarPoint.Win.Chart.ChartModel(); model.LabelAreas.Add(label); model.LegendAreas.Add(legend); model.PlotAreas.Add(plotArea); // SPREADチャートにチャートモデルを設定します FarPoint.Win.Spread.Chart.SpreadChart chart = new FarPoint.Win.Spread.Chart.SpreadChart(); chart.ChartName = "barchart"; chart.Size = new Size(400, 200); chart.Location = new Point(3, 130); chart.Model = model; // シートにSPREADチャートを追加します fpSpread1.Sheets[0].Charts.Add(chart); SPChart = chart; SPChart.SelectionChanged += new EventHandler(SPChart_SelectionChanged); } private void SPChart_SelectionChanged(object sender, System.EventArgs e) { if (SPChart.SelectedObject != null) { if ((SPChart.SelectedObject) is FarPoint.Win.Chart.SeriesInfo) { // データポイントのインデックスを取得します int dataPidx = ((FarPoint.Win.Chart.SeriesInfo)(System.Object)SPChart.SelectedObject).PointIndex; if (dataPidx == -1) { Console.Write("[シリーズが選択されました]"); Console.WriteLine(SPChart.SelectedObject.ToString()); } else { Console.Write("[" + (dataPidx + 1).ToString() + "番目のデータポイントが選択されました]"); Console.WriteLine(SPChart.SelectedObject.ToString()); } } else { Console.Write("[シリーズ以外のオブジェクトが選択されました]"); Console.WriteLine(SPChart.SelectedObject.ToString()); } } else { Console.WriteLine("Nothing"); } }
Private WithEvents SPChart As New FarPoint.Win.Spread.Chart.SpreadChart() Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load ' データを設定します FpSpread1.Sheets(0).Cells(0, 1).Value = "S1" FpSpread1.Sheets(0).Cells(0, 2).Value = "S2" FpSpread1.Sheets(0).Cells(0, 3).Value = "S3" FpSpread1.Sheets(0).Cells(1, 0).Value = "1Q" FpSpread1.Sheets(0).Cells(2, 0).Value = "2Q" FpSpread1.Sheets(0).Cells(3, 0).Value = "3Q" FpSpread1.Sheets(0).Cells(4, 0).Value = "4Q" FpSpread1.Sheets(0).Cells(1, 1).Value = 50 FpSpread1.Sheets(0).Cells(2, 1).Value = 30 FpSpread1.Sheets(0).Cells(3, 1).Value = 20 FpSpread1.Sheets(0).Cells(4, 1).Value = 40 FpSpread1.Sheets(0).Cells(1, 2).Value = 30 FpSpread1.Sheets(0).Cells(2, 2).Value = 15 FpSpread1.Sheets(0).Cells(3, 2).Value = 50 FpSpread1.Sheets(0).Cells(4, 2).Value = 20 FpSpread1.Sheets(0).Cells(1, 3).Value = 10 FpSpread1.Sheets(0).Cells(2, 3).Value = 40 FpSpread1.Sheets(0).Cells(3, 3).Value = 25 FpSpread1.Sheets(0).Cells(4, 3).Value = 25 ' シリーズを設定します Dim series1 As New FarPoint.Win.Chart.LineSeries() series1.SeriesNameDataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$B$1:$B$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text) series1.Values.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$B$2:$B$5") series1.CategoryNames.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text) Dim series2 As New FarPoint.Win.Chart.LineSeries() series2.SeriesNameDataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$C$1:$C$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text) series2.Values.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$C$2:$C$5") series2.CategoryNames.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text) Dim series3 As New FarPoint.Win.Chart.LineSeries() series3.SeriesNameDataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$D$1:$D$1", FarPoint.Win.Spread.Chart.SegmentDataType.Text) series3.Values.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$D$2:$D$5") series3.CategoryNames.DataSource = New FarPoint.Win.Spread.Chart.SeriesDataField(FpSpread1, "Values", "Sheet1!$A$2:$A$5", FarPoint.Win.Spread.Chart.SegmentDataType.Text) Dim plotArea As New FarPoint.Win.Chart.YPlotArea() plotArea.Location = New PointF(0.2F, 0.2F) plotArea.Size = New SizeF(0.55F, 0.6F) plotArea.Series.Add(series1) plotArea.Series.Add(series2) plotArea.Series.Add(series3) ' ラベルを設定します Dim label As New FarPoint.Win.Chart.LabelArea() label.Text = "四半期別" label.Location = New PointF(0.5F, 0.02F) label.AlignmentX = 0.5F label.AlignmentY = 0.0F ' 凡例を設定します Dim legend As New FarPoint.Win.Chart.LegendArea() legend.Location = New PointF(0.98F, 0.5F) legend.AlignmentX = 1.0F legend.AlignmentY = 0.5F ' チャートモデルに各情報を追加します Dim model As New FarPoint.Win.Chart.ChartModel() model.LabelAreas.Add(label) model.LegendAreas.Add(legend) model.PlotAreas.Add(plotArea) ' SPREADチャートにチャートモデルを設定します Dim chart As New FarPoint.Win.Spread.Chart.SpreadChart() chart.ChartName = "barchart" chart.Size = New Size(400, 200) chart.Location = New Point(3, 130) chart.Model = model ' シートにSPREADチャートを追加します FpSpread1.Sheets(0).Charts.Add(chart) SPChart = chart End Sub Private Sub SPChart_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles SPChart.SelectionChanged If Not SPChart.SelectedObject Is Nothing Then If (TypeOf (SPChart.SelectedObject) Is FarPoint.Win.Chart.SeriesInfo) Then ' データポイントのインデックスを取得します Dim dataPidx As Integer = DirectCast(DirectCast(SPChart.SelectedObject, System.Object), FarPoint.Win.Chart.SeriesInfo).PointIndex If dataPidx = -1 Then Console.Write("[シリーズが選択されました]") Console.WriteLine(SPChart.SelectedObject.ToString()) Else Console.Write("[" & (dataPidx + 1).ToString & "番目のデータポイントが選択されました]") Console.WriteLine(SPChart.SelectedObject.ToString()) End If Else Console.Write("[シリーズ以外のオブジェクトが選択されました]") Console.WriteLine(SPChart.SelectedObject.ToString()) End If Else Console.WriteLine("Nothing") End If End Sub