[Yaxis range when y values are all 0.]

I have a chart with a single series, all of whose y values are 0.  The y axis range goes from -1 to 1, so that this series shows up as a horizontal line through the center of my plot. 

 How do make the range go from 0 to 1, so that the series appears as a horizontal line at the base of my plot?

 Thanks,

Charlie

[Horizontal lines in line chart]

 I have a line chart with 4 series that show only the leftmost point of each series followed by a horizontal line.  This happens the first time I set the Data.X[i,j] and Data.Y[i,j] values and make the chart visible.  When I make the DataView visible, I see that there are 49 points in each series, with increasing x values and varying y values; in other words, the curves should not be horizontal lines.  The next time and all subsequent times when I set the data and make the chart visible, all series plot 49 points correctly, not as horizontal lines. 

Any ideas what is happening without seeing my code?

TIA,

Charlie

 

 

ChartAnnotationTest.zip