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DataRowCollection.Add Method (DataRow)

Adds the specified DataRow to the DataRowCollection object.

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

public void Add(
	DataRow row


Type: System.Data.DataRow

The DataRow to add.


The row is null.


The row either belongs to another table or already belongs to this table.


The addition invalidates a constraint.


The addition tries to put a null in a DataColumn where AllowDBNull is false

To create a new DataRow, you must use the NewRow method of the DataTable class. When you use the NewRow method, a new DataRow object is returned using the schema of parent DataTable. After you create the DataRow object and set the values for each of its columns, use the Add method to add the object to the collection.

Generates an exception if the user generates an exception in the RowChanging event. If an exception occurs, the row is not added to the table.

The following example uses the Add method to add a new DataRow to a DataRowCollection object.

private void ShowRows(DataTable table)
    // Print the number of rows in the collection.
    // Print the value of columns 1 in each row 
    foreach(DataRow row in table.Rows)

private void AddRow(DataTable table)
    DataRowCollection rowCollection = table.Rows;
    // Instantiate a new row using the NewRow method.

    DataRow newRow = table.NewRow();
    // Insert code to fill the row with values. 

    // Add the row to the DataRowCollection.

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