Gets an array of all DataRow objects that match the filter criteria in order of primary key (or lacking one, order of addition.)
(in System.Data.dll)
Visual Basic (Declaration)
Public Function Select ( _
filterExpression As String _
) As DataRow()
Dim instance As DataTable
Dim filterExpression As String
Dim returnValue As DataRow()
returnValue = instance.Select(filterExpression)
public DataRow[] Select(
string filterExpression
)
public:
array<DataRow^>^ Select(
String^ filterExpression
)
public function Select(
filterExpression : String
) : DataRow[]
Parameters
- filterExpression
- Type: System..::.String
The criteria to use to filter the rows.
To create the filterExpression argument, use the same rules that apply to the DataColumn class's Expression property value for creating filters.
The following example uses a filter expression to return an array of DataRow objects.
Private Sub GetRowsByFilter()
Dim table As DataTable = DataSet1.Tables("Orders")
' Presuming the DataTable has a column named Date.
Dim expression As String
expression = "Date > #1/1/00#"
Dim foundRows() As DataRow
' Use the Select method to find all rows matching the filter.
foundRows = table.Select(expression)
Dim i As Integer
' Print column 0 of each returned row.
For i = 0 to foundRows.GetUpperBound(0)
Console.WriteLine(foundRows(i)(0))
Next i
End Sub
private void GetRowsByFilter()
{
DataTable table = DataSet1.Tables["Orders"];
// Presuming the DataTable has a column named Date.
string expression;
expression = "Date > #1/1/00#";
DataRow[] foundRows;
// Use the Select method to find all rows matching the filter.
foundRows = table.Select(expression);
// Print column 0 of each returned row.
for(int i = 0; i < foundRows.Length; i ++)
{
Console.WriteLine(foundRows[i][0]);
}
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference
Other Resources