Read Method

DataTableReader.Read Method

Advances the DataTableReader to the next record.

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

public override bool Read()

Return Value

Type: System.Boolean
true if there was another row to read; otherwise false.

Implements

IDataReader.Read()

ExceptionCondition
InvalidOperationException

An attempt was made to read or access a column in a closed DataTableReader .

The default position of the DataTableReader is before the first record. Therefore, you must call Read to start accessing any data.

The PrintColumns procedure loops through all the rows in the DataTableReader, displaying the contents of each column in the Console window.


private static void PrintColumns(DataTableReader reader)
{
    // Loop through all the rows in the DataTableReader
    while (reader.Read())
    {
        for (int i = 0; i < reader.FieldCount; i++)
        {
            Console.Write("{0} ", reader[i]);
        }
        Console.WriteLine();
    }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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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