Hi,

I have encountered a problem working with line chart which is bounded to a DataSet's DataTable.
When there is more than one row in the DataTable, the graph shows all the points correctly.
However, when the DataTable contains a single row, I expect to see a single point in the chart corresponding to the row's field relevant value. However, no points are displayed on the chart at all (I see an empty chart).
I was able to reproduce this behavior on the demo:

On ProfitForm.cs file's ProfitForm_Load() event, I added the following code fragment right after filling the Sales DataTable. I delete all rows except one (the banana row), and the chart does not show its related point on the chart.

DataTable SalesDataTable = salesDataSet.Tables["Sales"];
                for (int i = SalesDataTable.Rows.Count - 1; i >= 1; i--)
                {
                    SalesDataTable.Rows[i].Delete();
                }
                SalesDataTable.AcceptChanges(); 

I would appreciate your help.

Thanks,
Nir

Hi Stoyan,

Thank you for your answer.
The LineType property is set to Line | Scatter,
but still I can't see single point. Could there be other property which somehow denies the Scatter option ?

Thanks,
Nir

Hi Stoyan,

Apparently, the point was in the correct range, but the minimum value of the X axis was identical to the maximum value (which was identical to the point X-data value).
Setting a small buffer between the minimum and the maximum values did the trick.

Thank you very much !
Nir