Public ReadOnly Property IsEmpty As Boolean

Dim instance As DefaultSparklineContainer
Dim value As Boolean
 
value = instance.IsEmpty

public bool IsEmpty {get;}

fpSpread1.Sheets[0].RowCount = 10;
fpSpread1.Sheets[0].ColumnCount = 10;
fpSpread1.Sheets[0].SetClip(0, 0, 1, 5, "1\t2\t3\t4\t5");
FarPoint.Web.Spread.ExcelSparkline es = new FarPoint.Web.Spread.ExcelSparkline(0, 5, fpSpread1.Sheets[0], new FarPoint.Web.Spread.Model.CellRange(0, 0, 1, 5));
FarPoint.Web.Spread.ExcelSparklineGroup esg = new FarPoint.Web.Spread.ExcelSparklineGroup(new FarPoint.Web.Spread.ExcelSparklineSetting(), FarPoint.Web.Spread.SparklineType.Column);
esg.Add(es);
fpSpread1.Sheets[0].SparklineContainer.Add(esg);
fpSpread1.Sheets[0].SetClip(1, 0, 1, 5, "1\t2\t3\t4\t5");
FarPoint.Web.Spread.ExcelSparkline addES = new FarPoint.Web.Spread.ExcelSparkline(1, 5, fpSpread1.Sheets[0], new FarPoint.Web.Spread.Model.CellRange(1, 0, 1, 5));

listBox1.Items.Add(fpSpread1.Sheets[0].SparklineContainer.IsEmpty.ToString());

FpSpread1.Sheets(0).RowCount = 10
FpSpread1.Sheets(0).ColumnCount = 10
fpSpread1.Sheets(0).SetClip(0, 0, 1, 5, "1" & vbTab & "2" & vbTab & "3" & vbTab & "4" & vbTab & "5")
Dim es As New FarPoint.Web.Spread.ExcelSparkline(0, 5, fpSpread1.Sheets(0), New FarPoint.Web.Spread.Model.CellRange(0, 0, 1, 5))
Dim esg As New FarPoint.Web.Spread.ExcelSparklineGroup(New FarPoint.Web.Spread.ExcelSparklineSetting(), FarPoint.Web.Spread.SparklineType.Column)
esg.Add(es)
fpSpread1.Sheets(0).SparklineContainer.Add(esg)
fpSpread1.Sheets(0).SetClip(1, 0, 1, 5, "1" & vbTab & "2" & vbTab & "3" & vbTab & "4" & vbTab & "5")
Dim addES As New FarPoint.Web.Spread.ExcelSparkline(1, 5, fpSpread1.Sheets(0), New FarPoint.Web.Spread.Model.CellRange(1, 0, 1, 5))

ListBox1.Items.Add(fpSpread1.Sheets(0).SparklineContainer.IsEmpty.ToString())