dotConnect for Adobe Commerce Documentation
Devart.Data Namespace / SqlShimDataReader Class / FieldCount Property
Example

FieldCount Property (SqlShimDataReader)
Gets the number of columns in the current row.
Syntax
'Declaration
 
Public Overrides ReadOnly Property FieldCount As Integer
 

Property Value

When not positioned in a valid record set, 0; otherwise the number of columns in the current record. The default value is -1.
Remarks
After executing a query that does not return rows, FieldCount returns 0.
Example
This sample demonstrates how to iterate through fields in a row using FieldCount property.
public void FetchResults(MagentoConnection adobe commerceConnection)
{
  MagentoCommand cmd = new MagentoCommand("SELECT * FROM Customers");
  cmd.FetchSize = 100;
  cmd.Connection = adobe commerceConnection;
  adobe commerceConnection.Open();
  try
  {
    MagentoDataReader reader = cmd.ExecuteReader();
    while (reader.Read())
    {
      for (int i=0;i<reader.FieldCount;i++)
      {
        Console.Write("\t"+reader[i]);
      }
      Console.WriteLine();
    }
  }
  finally
  {
    adobe commerceConnection.Close();
  }
}
Public Sub FetchResults(ByVal adobe commerceConnection As MagentoConnection)
  Dim cmd As MagentoCommand = New MagentoCommand("SELECT * FROM Customers")
  cmd.FetchSize = 100
  cmd.Connection = adobe commerceConnection
  adobe commerceConnection.Open()
  Try
    Dim reader As MagentoDataReader = cmd.ExecuteReader()
    While reader.Read()
      Dim i
      For i = 0 To reader.FieldCount - 1
        Console.Write(String.Concat(" ", reader(i)))
      Next i
      Console.WriteLine()
    End While
  Finally
    adobe commerceConnection.Close()
  End Try
End Sub
Requirements

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

See Also