DataView.RowFilter Property (System.Data)

RowFilter Property

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

DataView..::.RowFilter Property

Gets or sets the expression used to filter which rows are viewed in the DataView.

Namespace: System.Data
Assembly: System.Data (in System.Data.dll)

Syntax

Visual Basic (Declaration)

Public Overridable Property RowFilter As String

Visual Basic (Usage)

Dim instance As DataView
Dim value As String

value = instance.RowFilter

instance.RowFilter = value

public virtual string RowFilter { get; set; }

Visual C++

public:
virtual property String^ RowFilter {
    String^ get ();
    void set (String^ value);
}

JScript

public function get RowFilter () : String
public function set RowFilter (value : String)

Property Value

Type: System..::.String
A string that specifies how rows are to be filtered. For more information, see the Remarks section.

Remarks

To form a RowFilter value, specify the name of a column followed by an operator and a value to filter on. The value must be in quotation marks. For example:

"LastName = 'Smith'"

See the Expression property of the DataColumn class for more information.

To return only those columns with null values, use the following expression:

"Isnull(Col1,'Null Column') = 'Null Column'"

Examples

The following example creates a DataView and sets its RowFilter property.

Visual Basic

Private Sub MakeDataView()
    Dim view As DataView = New DataView
    With view
        .Table = DataSet1.Tables("Suppliers")
        .AllowDelete = True
        .AllowEdit = True
        .AllowNew = True
        .RowFilter = "City = 'Berlin'"
        .RowStateFilter = DataViewRowState.ModifiedCurrent
        .Sort = "CompanyName DESC"
    End With

    ' Simple-bind to a TextBox control
    Text1.DataBindings.Add("Text", view, "CompanyName")
End Sub

private void MakeDataView() 
{
    DataView view = new DataView();

    view.Table = DataSet1.Tables["Suppliers"];
    view.AllowDelete = true;
    view.AllowEdit = true;
    view.AllowNew = true;
    view.RowFilter = "City = 'Berlin'";
    view.RowStateFilter = DataViewRowState.ModifiedCurrent;
    view.Sort = "CompanyName DESC";

    // Simple-bind to a TextBox control
    Text1.DataBindings.Add("Text", view, "CompanyName");
}

Platforms

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.

Version Information