MySqlDataAdapter Constructor (String, MySqlConnection)

MySQL Connector/Net

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MySqlDataAdapter Constructor (String, MySqlConnection)
Initializes a new instance of the MySqlDataAdapter class with a SelectCommand and a MySqlConnection object.

Namespace: MySql.Data.MySqlClient
Assembly: MySql.Data (in MySql.Data.dll) Version: 6.9.9
Syntax
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public MySqlDataAdapter(
	string selectCommandText,
	MySqlConnection connection
)
Public Sub New ( 
	selectCommandText As String,
	connection As MySqlConnection
)
public:
MySqlDataAdapter(
	String^ selectCommandText, 
	MySqlConnection^ connection
)
new : 
        selectCommandText : string * 
        connection : MySqlConnection -> MySqlDataAdapter

Parameters

selectCommandText
Type: SystemString
A String that is a SQL SELECT statement or stored procedure to be used by the SelectCommand property of the MySqlDataAdapter.
connection
Type: MySql.Data.MySqlClientMySqlConnection
A MySqlConnection that represents the connection.
Remarks

This implementation of the MySqlDataAdapter opens and closes a MySqlConnection if it is not already open. This can be useful in a an application that must call the Fill(DataSet) method for two or more MySqlDataAdapter objects. If the MySqlConnection is already open, you must explicitly call Close or Dispose to close it.

When an instance of MySqlDataAdapter is created, the following read/write properties are set to the following initial values.

PropertiesInitial Value
MissingMappingActionMissingMappingAction.Passthrough
MissingSchemaActionMissingSchemaAction.Add

You can change the value of any of these properties through a separate call to the property.

Examples
The following example creates a MySqlDataAdapter and sets some of its properties.
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public static void CreateSqlDataAdapter()
{
MySqlConnection conn = new MySqlConnection("Data Source=localhost;database=test");
MySqlDataAdapter da = new MySqlDataAdapter("SELECT id, name FROM mytable", conn);
da.MissingSchemaAction = MissingSchemaAction.AddWithKey;

da.InsertCommand = new MySqlCommand("INSERT INTO mytable (id, name) " +
"VALUES (@id, @name)", conn);
da.UpdateCommand = new MySqlCommand("UPDATE mytable SET id=@id, name=@name " +
"WHERE id=@oldId", conn);
da.DeleteCommand = new MySqlCommand("DELETE FROM mytable WHERE id=@id", conn);

da.InsertCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id");
da.InsertCommand.Parameters.Add("@name", MySqlDbType.VarChar, 40, "name");

da.UpdateCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id");
da.UpdateCommand.Parameters.Add("@name", MySqlDbType.VarChar, 40, "name");
da.UpdateCommand.Parameters.Add("@oldId", MySqlDbType.VarChar, 5, "id").SourceVersion = DataRowVersion.Original;

da.DeleteCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id").SourceVersion = DataRowVersion.Original;
}
Public Sub CreateSqlDataAdapter()
Dim conn As MySqlConnection = New MySqlConnection("Data Source=localhost;" & _
"database=test")
Dim da As MySqlDataAdapter = New MySqlDataAdapter("SELECT id, name FROM mytable", conn)
da.MissingSchemaAction = MissingSchemaAction.AddWithKey

da.InsertCommand = New MySqlCommand("INSERT INTO mytable (id, name) " & _
"VALUES (@id, @name)", conn)
da.UpdateCommand = New MySqlCommand("UPDATE mytable SET id=@id, name=@name " & _
"WHERE id=@oldId", conn)
da.DeleteCommand = New MySqlCommand("DELETE FROM mytable WHERE id=@id", conn)

da.InsertCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id")
da.InsertCommand.Parameters.Add("@name", MySqlDbType.VarChar, 40, "name")

da.UpdateCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id")
da.UpdateCommand.Parameters.Add("@name", MySqlDbType.VarChar, 40, "name")
da.UpdateCommand.Parameters.Add("@oldId", MySqlDbType.VarChar, 5, "id").SourceVersion = DataRowVersion.Original

da.DeleteCommand.Parameters.Add("@id", MySqlDbType.VarChar, 5, "id").SourceVersion = DataRowVersion.Original
End Sub

No code example is currently available or this language may not be supported.

No code example is currently available or this language may not be supported.

See Also
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