ZohoBooksCommand Class

In This Topic

Represents a SQL statement or stored procedure to execute against Zoho Books.

Syntax

Visual Basic
C#

'Declaration
 
Public Class ZohoBooksCommand 
   Inherits Devart.Data.SqlShimCommand
   Implements System.ComponentModel.IComponent, System.Data.IDbCommand, System.ICloneable, System.IDisposable

public class ZohoBooksCommand : Devart.Data.SqlShimCommand, System.ComponentModel.IComponent, System.Data.IDbCommand, System.ICloneable, System.IDisposable

Remarks

The ZohoBooksCommand class provides the following methods for executing commands against Zoho Books:

Item	Description
ExecuteReader	Executes commands that return rows.
ExecutePageReader	Returns a specific subset of rows when paging through the results of a query.
ExecuteNonQuery	Executes SQL commands such as INSERT, DELETE, UPDATE.
ExecuteScalar	Retrieves a single value (for example, an aggregate value) from a data source.

If execution of the command results in a fatal ZohoBooksException, the ZohoBooksConnection may close. However, the user can reopen the connection and continue.

This class supports cross-form data binding with the InterForm Technology.

Example

The following example uses the ExecuteReader method of ZohoBooksCommand, along with ZohoBooksDataReader and ZohoBooksConnection, to select rows from a table.

csharp

public void ReadMyData(string myConnString)
{
  string mySelectQuery = "SELECT AccountID, \"Account Name\" FROM Accounts";
  ZohoBooksConnection ZohoBooksConnection = new ZohoBooksConnection(myConnString);
  ZohoBooksCommand ZohoBooksCommand = new ZohoBooksCommand(mySelectQuery,ZohoBooksConnection);
  ZohoBooksConnection.Open();
  ZohoBooksDataReader ZohoBooksReader = ZohoBooksCommand.ExecuteReader();
  try
  {
    while (ZohoBooksReader.Read())
    {
      Console.WriteLine(ZohoBooksReader.GetString(0) + ", " + ZohoBooksReader.GetString(1));
    }
  }
  finally
  {
  // always call Close when done reading.
  ZohoBooksReader.Close();
  // always call Close when done reading.
  ZohoBooksConnection.Close();
  }
}

Visual Basic

Public Sub ReadMyData(myConnString As String)
  Dim mySelectQuery As String = "SELECT AccountID, \"Account Name\" FROM Accounts"
  Dim ZohoBooksConnection As New ZohoBooksConnection(myConnString)
  Dim ZohoBooksCommand As New ZohoBooksCommand(mySelectQuery, ZohoBooksConnection)
  ZohoBooksConnection.Open()
  Dim ZohoBooksReader As ZohoBooksDataReader = ZohoBooksCommand.ExecuteReader()
  Try
    While ZohoBooksReader.Read()
      Console.WriteLine(ZohoBooksReader.GetString(0) + ", " _
        + ZohoBooksReader.GetString(1))
    End While
  Finally
      ' always call Close when done reading.
      ZohoBooksReader.Close()
      ' always call Close when done with connection.
      ZohoBooksConnection.Close()
  End Try
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Data.Common.DbCommand
            Devart.Common.DbCommandBase
               Devart.Data.SqlShimCommand
                  Devart.Data.ZohoBooks.ZohoBooksCommand

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

Reference

ZohoBooksCommand Members
Devart.Data.ZohoBooks Namespace
ZohoBooksDataReader Class

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