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DataView.RowFilter Property

.NET Framework 4

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)
C#
C++
F#
VB
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public virtual string RowFilter { get; set; }

Property Value

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

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'"

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

C#
VB
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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");
}

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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Cancel filter after filtering
What is the best way to cancel the filter, what i mean is hou to show all the rows again after filtering? $0$0 $0 $0[view.RowFilter = ""]$0
There are several ways.  Set the filter to nothing.  Make a new DataView from a DataTable.

But this isn't the place for questions.  Please use msdn forms to get answers.
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