Public Property BorderColor As Color

Dim instance As DatabarConditionalFormattingRule
Dim value As Color
 
instance.BorderColor = value
 
value = instance.BorderColor

public Color BorderColor {get; set;}

private void Form1_Load(object sender, EventArgs e)
        {
            fpSpread1.Sheets[0].Cells[0, 0].Value = 3;
            fpSpread1.Sheets[0].Cells[1, 0].Value = 2;
            fpSpread1.Sheets[0].Cells[1, 1].Value = 10;
            fpSpread1.Sheets[0].Cells[0, 2].Value = 1;            
        }

        private void button1_Click(object sender, EventArgs e)
        {
            FarPoint.Win.Spread.DatabarConditionalFormattingRule d = new FarPoint.Win.Spread.DatabarConditionalFormattingRule();
            d.BorderColor = Color.Red;
            d.Maximum = new FarPoint.Win.Spread.ConditionalFormattingValue(15,FarPoint.Win.Spread.ConditionalFormattingValueType.Number);
            fpSpread1.ActiveSheet.SetConditionalFormatting(0, 0, 3, 3, d);
        }

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        FpSpread1.Sheets(0).Cells(0, 0).Value = 3
        FpSpread1.Sheets(0).Cells(1, 0).Value = 2
        FpSpread1.Sheets(0).Cells(1, 1).Value = 10
        FpSpread1.Sheets(0).Cells(0, 2).Value = 1
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim d As New FarPoint.Win.Spread.DatabarConditionalFormattingRule()
        d.BorderColor = Color.Red
        d.Maximum = New FarPoint.Win.Spread.ConditionalFormattingValue(15, FarPoint.Win.Spread.ConditionalFormattingValueType.Number)
        FpSpread1.ActiveSheet.SetConditionalFormatting(0, 0, 3, 3, d)
    End Sub