Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Chart1.Series(0).ChartType = DataVisualization.Charting.SeriesChartType.Line
Chart1.Series(1).ChartType = DataVisualization.Charting.SeriesChartType.Line
Chart1.Series(0).Points.Clear()
Chart1.Series(1).Points.Clear()
For Count As Integer = 0 To DataGridView1.Rows.Count - 1
Chart1.Series("NEM").Points.AddXY(Convert.ToDateTime(DataGridView1.Item(1, Count).Value).ToString("dd/MM/yy"), DataGridView1.Item(3, Count).Value)
Chart1.Series("SICAKLIK").Points.AddXY(Convert.ToDateTime(DataGridView1.Item(1, Count).Value).ToString("dd/MM/yy"), DataGridView1.Item(4, Count).Value)
Next
End Sub