MySQL Connector/Net
MySqlDataAdapter Constructor |
Initializes a new instance of the MySqlDataAdapter class.
Namespace: MySql.Data.MySqlClient
Assembly: MySql.Data (in MySql.Data.dll) Version: 6.9.9
Syntax
Remarks
When an instance of MySqlDataAdapter is created, the following read/write properties are set to the following initial values.
Properties | Initial Value |
---|---|
MissingMappingAction | MissingMappingAction.Passthrough |
MissingSchemaAction | MissingSchemaAction.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.
public static void CreateSqlDataAdapter() { MySqlConnection conn = new MySqlConnection("Data Source=localhost;database=test"); MySqlDataAdapter da = new MySqlDataAdapter(); da.MissingSchemaAction = MissingSchemaAction.AddWithKey; da.SelectCommand = new MySqlCommand("SELECT id, name FROM mytable", conn); 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 da.MissingSchemaAction = MissingSchemaAction.AddWithKey da.SelectCommand = New MySqlCommand("SELECT id, name FROM mytable", conn) 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