[英]how to select specific columns from a data table in vb.net?
我有一個數據表,可根據條件從中過濾數據,但是如何僅顯示數據表中的特定列?
Dim Dt As New DataTable
Dim SQlDa As SqlDataAdapter = New SqlDataAdapter(SqlCmd)
SQlDa.Fill(TrackingDt)
Dim Rows() As DataRow = Dt.Select("State = " + "'" + State + "'")
Dim TempDt As New DataTable
If Rows.Length > -1 Then
TempDt = Rows.CopyToDataTable()
End If
Return TempDt
Dim view As New DataView(MyDataTable)
Dim distinctValues As DataTable = view.ToTable(True, "ColumnA")
像這樣嘗試
TempDt =New DataView(Rows.CopyToDataTable()).ToTable(False,
"columnname1", "name2","...","..")
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