ZohoCommand Class

In This Topic

Syntax
Remarks
Example
Inheritance Hierarchy
Requirements
See Also

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

Syntax

Visual Basic
C#

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

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

Remarks

The ZohoCommand class provides the following methods for executing commands against Zoho CRM:

Item	Description
ExecuteReader	Executes commands that return rows.
Devart.Common.DbCommandBase.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 ZohoException, the ZohoConnection may close. However, the user can reopen the connection and continue.

Example

The following example uses the ExecuteReader method of ZohoCommand, along with ZohoDataReader and ZohoConnection, to select rows from a table.

csharp

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

Visual Basic

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

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

ZohoCommand Members
Devart.Data.Zoho Namespace
ZohoDataReader Class
ZohoConnection Class

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