as the ColumnSeries doesn't have a data binding handler for this scenario.
What you could do in this case is to set the name of the ColumnSeries from the code-behind. The following example shows this by using a separate function for this purpose:
Dim column As New ColumnSeries()
'set the name
column.Name = GetSeriesName()
column.DataFieldY = "value"
ColumnChart.DataSource = GetData()
You could replace the GetSeriesName() function with the one you like. I also attach a sample page with the full example, so that you could test it.
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