Fastest way to clone a dataset with filter

Danny Ni

Hi,

I would like to know the fastest way to clone a dataset with filter inVB.Net
or C#. Say I have a dataset that has one datatable having several data rows.
I want to clone the structure to another dataset but with selection of
datarows.
Please Help!

Nov 19 '05 #1

Subscribe Reply

1747

Chris Botha

Hope this is the fastest:

Dim theTable as DataTable = theDataSet.Tabl es(0)
Dim secondTable As DataTable = theTable.Clone( )
theTable.Defaul tView.RowFilter = "SomeColumn=123 " ' If integer
Dim oneRowView As DataRowView
For Each oneRowView In theTable.Defaul tView
secondTable.Imp ortRow(oneRowVi ew.Row)
Next
Dim newDataSet as DataSet = new DataSet
newDataSet.Tabl es.Add(secondTa ble)
"Danny Ni" <dn*@yahoo.co m> wrote in message
news:OC******** ******@tk2msftn gp13.phx.gbl...

Hi,

I would like to know the fastest way to clone a dataset with filter
inVB.Net
or C#. Say I have a dataset that has one datatable having several data
rows.
I want to clone the structure to another dataset but with selection of
datarows.
Please Help!

Nov 19 '05 #2

Onin Tayson

Hi,

This might be one of the fastest (and shortest code) method to do that.

newDs.Merge(ori gDs.Tables[0].Select("filter Expression"));

the newDs will be your clone DS that contains the filtered DataRows.

HTH,
"Danny Ni" <dn*@yahoo.co m> wrote in message
news:OC******** ******@tk2msftn gp13.phx.gbl...

Hi,

I would like to know the fastest way to clone a dataset with filter
inVB.Net
or C#. Say I have a dataset that has one datatable having several data
rows.
I want to clone the structure to another dataset but with selection of
datarows.
Please Help!

Nov 19 '05 #3

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