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DataRowCollection.Find Method (Object)

Gets the row specified by the primary key value.

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

public DataRow Find(
	Object key
)

Parameters

key
Type: System.Object

The primary key value of the DataRow to find.

Return Value

Type: System.Data.DataRow
A DataRow that contains the primary key value specified; otherwise a null value if the primary key value does not exist in the DataRowCollection.

ExceptionCondition
MissingPrimaryKeyException

The table does not have a primary key.

To use the Find method, the DataTable object to which the DataRowCollection object belongs must have at least one column designated as a primary key column. See the PrimaryKey property for more information about how to create a primary key column.

The following example uses the Find method to find the primary key value "2" in a collection of DataRow objects. The method returns the specific DataRow object letting you change its values, as needed.

private void FindInPrimaryKeyColumn(DataTable table, 
    long pkValue)
{
    // Find the number pkValue in the primary key  
    // column of the table.
    DataRow foundRow = table.Rows.Find(pkValue);

    // Print the value of column 1 of the found row. 
    if(foundRow != null)
        Console.WriteLine(foundRow[1]);
}

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
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