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Gridview with changing Datasources in code - some things don't work

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Is there a correct way to change the datasourceId of a gridview in
codebehind so that things like sorting, paging and deleting actually

Or will have have to have one one to one relationship between
datasources and gridviews?

when I switch datasources - deletes don't happen and I get erros like
this when I try to page or sort:

The GridView 'RateGridView' fired event Sorting which wasn't handled.

Here's how I switch:

RateGridView.DataSourceID = Nothing
RateGridView.DataSource = Nothing
ChargeGridView.DataSourceID = Nothing
ChargeGridView.DataSource = Nothing
If StatusLabel.Text = "" Then
If Hcheck.Checked Then
RateGridView.DataSource = RateGridSourceAll
ChargeGridView.DataSource = ChargeGridSourceAll
RateGridView.DataSource = RateGridSource
ChargeGridView.DataSource = ChargeGridSource
End If
End If


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