OdbcDataAdapter Construtores
Definição
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Inicializa uma nova instância da classe OdbcDataAdapter.
Sobrecargas
OdbcDataAdapter() |
Inicializa uma nova instância da classe OdbcDataAdapter. |
OdbcDataAdapter(OdbcCommand) |
Inicializa uma nova instância da classe OdbcDataAdapter com a instrução SQL SELECT especificada. |
OdbcDataAdapter(String, OdbcConnection) |
Inicializa uma nova instância da classe OdbcDataAdapter com a instrução SQL SELECT e um OdbcConnection. |
OdbcDataAdapter(String, String) |
Inicializa uma nova instância da classe OdbcDataAdapter com uma instrução SQL SELECT e uma cadeia de conexão. |
OdbcDataAdapter()
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
Inicializa uma nova instância da classe OdbcDataAdapter.
public:
OdbcDataAdapter();
public OdbcDataAdapter ();
Public Sub New ()
Exemplos
O exemplo a seguir cria um OdbcDataAdapter e define algumas de suas propriedades.
public static OdbcDataAdapter CreateDataAdapter(
OdbcConnection connection)
{
string selectCommand =
"SELECT CustomerID, CompanyName FROM Customers";
OdbcDataAdapter adapter = new OdbcDataAdapter(
selectCommand, connection);
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
// Create the Insert, Update and Delete commands.
adapter.InsertCommand = new OdbcCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (?, ?)");
adapter.UpdateCommand = new OdbcCommand(
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " +
"WHERE CustomerID = ?");
adapter.DeleteCommand = new OdbcCommand(
"DELETE FROM Customers WHERE CustomerID = ?");
// Create the parameters.
adapter.InsertCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.InsertCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.UpdateCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@oldCustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
adapter.DeleteCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
return adapter;
}
Public Function CreateDataAdapter( _
ByVal connection As OdbcConnection) As OdbcDataAdapter
Dim selectCommand As String = _
"SELECT CustomerID, CompanyName FROM Customers"
Dim adapter As OdbcDataAdapter = _
New OdbcDataAdapter(selectCommand, connection)
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
' Create the Insert, Update and Delete commands.
adapter.InsertCommand = New OdbcCommand( _
"INSERT INTO Customers (CustomerID, CompanyName) " & _
"VALUES (?, ?)")
adapter.UpdateCommand = New OdbcCommand( _
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " & _
"WHERE CustomerID = ?")
adapter.DeleteCommand = New OdbcCommand( _
"DELETE FROM Customers WHERE CustomerID = ?")
' Create the parameters.
adapter.InsertCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.InsertCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.UpdateCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@oldCustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
adapter.DeleteCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
Return adapter
End Function
Comentários
Quando você cria uma instância do OdbcDataAdapter, as propriedades somente gravação e somente leitura a seguir são definidas com seus valores padrão, conforme mostrado na tabela.
Propriedades | Valor padrão |
---|---|
MissingMappingAction | MissingMappingAction.Passthrough |
MissingSchemaAction | MissingSchemaAction.Add |
Você pode alterar o valor de qualquer uma dessas propriedades por meio de uma chamada separada para a propriedade .
Confira também
Aplica-se a
OdbcDataAdapter(OdbcCommand)
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
Inicializa uma nova instância da classe OdbcDataAdapter com a instrução SQL SELECT especificada.
public:
OdbcDataAdapter(System::Data::Odbc::OdbcCommand ^ selectCommand);
public OdbcDataAdapter (System.Data.Odbc.OdbcCommand? selectCommand);
public OdbcDataAdapter (System.Data.Odbc.OdbcCommand selectCommand);
new System.Data.Odbc.OdbcDataAdapter : System.Data.Odbc.OdbcCommand -> System.Data.Odbc.OdbcDataAdapter
Public Sub New (selectCommand As OdbcCommand)
Parâmetros
- selectCommand
- OdbcCommand
Um OdbcCommand que é uma instrução SQL SELECT ou um procedimento armazenado e é definida como a propriedade SelectCommand do OdbcDataAdapter.
Exemplos
O exemplo a seguir cria um OdbcDataAdapter e define algumas de suas propriedades.
public static OdbcDataAdapter CreateDataAdapter(
OdbcConnection connection)
{
string selectCommand =
"SELECT CustomerID, CompanyName FROM Customers";
OdbcDataAdapter adapter = new OdbcDataAdapter(
selectCommand, connection);
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
// Create the Insert, Update and Delete commands.
adapter.InsertCommand = new OdbcCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (?, ?)");
adapter.UpdateCommand = new OdbcCommand(
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " +
"WHERE CustomerID = ?");
adapter.DeleteCommand = new OdbcCommand(
"DELETE FROM Customers WHERE CustomerID = ?");
// Create the parameters.
adapter.InsertCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.InsertCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.UpdateCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@oldCustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
adapter.DeleteCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
return adapter;
}
Public Function CreateDataAdapter( _
ByVal connection As OdbcConnection) As OdbcDataAdapter
Dim selectCommand As String = _
"SELECT CustomerID, CompanyName FROM Customers"
Dim adapter As OdbcDataAdapter = _
New OdbcDataAdapter(selectCommand, connection)
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
' Create the Insert, Update and Delete commands.
adapter.InsertCommand = New OdbcCommand( _
"INSERT INTO Customers (CustomerID, CompanyName) " & _
"VALUES (?, ?)")
adapter.UpdateCommand = New OdbcCommand( _
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " & _
"WHERE CustomerID = ?")
adapter.DeleteCommand = New OdbcCommand( _
"DELETE FROM Customers WHERE CustomerID = ?")
' Create the parameters.
adapter.InsertCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.InsertCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.UpdateCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@oldCustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
adapter.DeleteCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
Return adapter
End Function
Comentários
Essa implementação do OdbcDataAdapter construtor define a SelectCommand propriedade como o valor especificado no selectCommand
parâmetro .
Quando você cria uma instância do OdbcDataAdapter, as propriedades somente gravação e somente leitura a seguir são definidas com seus valores padrão, conforme mostrado na tabela.
Propriedades | Valor inicial |
---|---|
MissingMappingAction | MissingMappingAction.Passthrough |
MissingSchemaAction | MissingSchemaAction.Add |
Você pode alterar o valor de qualquer uma dessas propriedades por meio de uma chamada separada para a propriedade .
Confira também
Aplica-se a
OdbcDataAdapter(String, OdbcConnection)
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
Inicializa uma nova instância da classe OdbcDataAdapter com a instrução SQL SELECT e um OdbcConnection.
public:
OdbcDataAdapter(System::String ^ selectCommandText, System::Data::Odbc::OdbcConnection ^ selectConnection);
public OdbcDataAdapter (string? selectCommandText, System.Data.Odbc.OdbcConnection? selectConnection);
public OdbcDataAdapter (string selectCommandText, System.Data.Odbc.OdbcConnection selectConnection);
new System.Data.Odbc.OdbcDataAdapter : string * System.Data.Odbc.OdbcConnection -> System.Data.Odbc.OdbcDataAdapter
Public Sub New (selectCommandText As String, selectConnection As OdbcConnection)
Parâmetros
- selectCommandText
- String
Uma cadeia de caracteres que é uma instrução SQL SELECT ou um procedimento armazenado a ser usado pela propriedade SelectCommand do OdbcDataAdapter.
- selectConnection
- OdbcConnection
Um OdbcConnection que representa a conexão.
Exemplos
O exemplo a seguir cria um OdbcDataAdapter e define algumas de suas propriedades.
public static OdbcDataAdapter CreateDataAdapter(
OdbcConnection connection)
{
string selectCommand =
"SELECT CustomerID, CompanyName FROM Customers";
OdbcDataAdapter adapter = new OdbcDataAdapter(
selectCommand, connection);
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
// Create the Insert, Update and Delete commands.
adapter.InsertCommand = new OdbcCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (?, ?)");
adapter.UpdateCommand = new OdbcCommand(
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " +
"WHERE CustomerID = ?");
adapter.DeleteCommand = new OdbcCommand(
"DELETE FROM Customers WHERE CustomerID = ?");
// Create the parameters.
adapter.InsertCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.InsertCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.UpdateCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@oldCustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
adapter.DeleteCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
return adapter;
}
Public Function CreateDataAdapter( _
ByVal connection As OdbcConnection) As OdbcDataAdapter
Dim selectCommand As String = _
"SELECT CustomerID, CompanyName FROM Customers"
Dim adapter As OdbcDataAdapter = _
New OdbcDataAdapter(selectCommand, connection)
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
' Create the Insert, Update and Delete commands.
adapter.InsertCommand = New OdbcCommand( _
"INSERT INTO Customers (CustomerID, CompanyName) " & _
"VALUES (?, ?)")
adapter.UpdateCommand = New OdbcCommand( _
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " & _
"WHERE CustomerID = ?")
adapter.DeleteCommand = New OdbcCommand( _
"DELETE FROM Customers WHERE CustomerID = ?")
' Create the parameters.
adapter.InsertCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.InsertCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.UpdateCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@oldCustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
adapter.DeleteCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
Return adapter
End Function
Comentários
Essa implementação do OdbcDataAdapter pode ser útil em um aplicativo que deve chamar o Fill
método para dois ou mais OdbcDataAdapter objetos.
Confira também
Aplica-se a
OdbcDataAdapter(String, String)
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
- Origem:
- OdbcDataAdapter.cs
Inicializa uma nova instância da classe OdbcDataAdapter com uma instrução SQL SELECT e uma cadeia de conexão.
public:
OdbcDataAdapter(System::String ^ selectCommandText, System::String ^ selectConnectionString);
public OdbcDataAdapter (string? selectCommandText, string? selectConnectionString);
public OdbcDataAdapter (string selectCommandText, string selectConnectionString);
new System.Data.Odbc.OdbcDataAdapter : string * string -> System.Data.Odbc.OdbcDataAdapter
Public Sub New (selectCommandText As String, selectConnectionString As String)
Parâmetros
- selectCommandText
- String
Uma cadeia de caracteres que é uma instrução SQL SELECT ou um procedimento armazenado a ser usado pela propriedade SelectCommand do OdbcDataAdapter.
- selectConnectionString
- String
A cadeia de conexão.
Exemplos
O exemplo a seguir cria um OdbcDataAdapter e define algumas de suas propriedades.
public static OdbcDataAdapter CreateDataAdapter(
OdbcConnection connection)
{
string selectCommand =
"SELECT CustomerID, CompanyName FROM Customers";
OdbcDataAdapter adapter = new OdbcDataAdapter(
selectCommand, connection);
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
// Create the Insert, Update and Delete commands.
adapter.InsertCommand = new OdbcCommand(
"INSERT INTO Customers (CustomerID, CompanyName) " +
"VALUES (?, ?)");
adapter.UpdateCommand = new OdbcCommand(
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " +
"WHERE CustomerID = ?");
adapter.DeleteCommand = new OdbcCommand(
"DELETE FROM Customers WHERE CustomerID = ?");
// Create the parameters.
adapter.InsertCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.InsertCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID");
adapter.UpdateCommand.Parameters.Add("@CompanyName",
OdbcType.VarChar, 40, "CompanyName");
adapter.UpdateCommand.Parameters.Add("@oldCustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
adapter.DeleteCommand.Parameters.Add("@CustomerID",
OdbcType.Char, 5, "CustomerID").SourceVersion =
DataRowVersion.Original;
return adapter;
}
Public Function CreateDataAdapter( _
ByVal connection As OdbcConnection) As OdbcDataAdapter
Dim selectCommand As String = _
"SELECT CustomerID, CompanyName FROM Customers"
Dim adapter As OdbcDataAdapter = _
New OdbcDataAdapter(selectCommand, connection)
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
' Create the Insert, Update and Delete commands.
adapter.InsertCommand = New OdbcCommand( _
"INSERT INTO Customers (CustomerID, CompanyName) " & _
"VALUES (?, ?)")
adapter.UpdateCommand = New OdbcCommand( _
"UPDATE Customers SET CustomerID = ?, CompanyName = ? " & _
"WHERE CustomerID = ?")
adapter.DeleteCommand = New OdbcCommand( _
"DELETE FROM Customers WHERE CustomerID = ?")
' Create the parameters.
adapter.InsertCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.InsertCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID")
adapter.UpdateCommand.Parameters.Add( _
"@CompanyName", OdbcType.VarChar, 40, "CompanyName")
adapter.UpdateCommand.Parameters.Add( _
"@oldCustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
adapter.DeleteCommand.Parameters.Add( _
"@CustomerID", OdbcType.Char, 5, "CustomerID").SourceVersion = _
DataRowVersion.Original
Return adapter
End Function
Comentários
Essa sobrecarga do OdbcDataAdapter construtor usa o selectConnectionString
parâmetro para definir a SelectCommand propriedade . No entanto, ele não abre a conexão. Você ainda deve abrir explicitamente a conexão.