当值为N / A时，如何使图表不显示任何内容

I created a VB.net program to display chart. The data is taken from the Excel workbook. So far, I got it to open and display the data on the chart, but some of my data in Excel is displayed as #N/A. The purpose of N/A is to show nothing on the chart. Here is what it looks like when I use Excel to display my chart: I created a VB.net program to display chart. Th