question

Hi @HemaRamachandran-9225,
I think you can use an if statement to determine whether y has a value,
if y has no value and the x point is empty, you can refer to the following example:

 <asp:Chart ID="Chart1" runat="server">
         <Series>
             <asp:Series Name="Testing" YValueType="Int32">
                 <Points>
                     <asp:DataPoint AxisLabel="Test 1" YValues="10" />
                     <asp:DataPoint AxisLabel="Test 2" YValues=" " />
                     <asp:DataPoint AxisLabel="Test 3" YValues="0" />
                     <asp:DataPoint AxisLabel="Test 4" YValues="40" />
                 </Points>
             </asp:Series>
         </Series>
         <ChartAreas>
             <asp:ChartArea Name="ChartArea1">
             </asp:ChartArea>
         </ChartAreas>
     </asp:Chart>

code behind:

 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
         For Each series As System.Web.UI.DataVisualization.Charting.Series In Chart1.Series
             For Each point As System.Web.UI.DataVisualization.Charting.DataPoint In series.Points
                 If point.YValues.Length > 0 AndAlso CDbl(point.YValues.GetValue(0)) = 0 Then
                     point.LegendText = point.AxisLabel
                     point.AxisLabel = String.Empty
                     point.Label = String.Empty
                 End If
             Next
         Next
 End Sub

Best regards,
Lan Huang

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