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NpgsqlDataAdapter.cs
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using System.Data;
using System.Data.Common;
using JetBrains.Annotations;
namespace Npgsql
{
/// <summary>
/// Represents the method that handles the <see cref="NpgsqlDataAdapter.RowUpdated">RowUpdated</see> events.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">A <see cref="NpgsqlRowUpdatedEventArgs">NpgsqlRowUpdatedEventArgs</see> that contains the event data.</param>
public delegate void NpgsqlRowUpdatedEventHandler(object sender, NpgsqlRowUpdatedEventArgs e);
/// <summary>
/// Represents the method that handles the <see cref="NpgsqlDataAdapter.RowUpdating">RowUpdating</see> events.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">A <see cref="NpgsqlRowUpdatingEventArgs">NpgsqlRowUpdatingEventArgs</see> that contains the event data.</param>
public delegate void NpgsqlRowUpdatingEventHandler(object sender, NpgsqlRowUpdatingEventArgs e);
/// <summary>
/// This class represents an adapter from many commands: select, update, insert and delete to fill <see cref="System.Data.DataSet">Datasets.</see>
/// </summary>
[System.ComponentModel.DesignerCategory("")]
public sealed class NpgsqlDataAdapter : DbDataAdapter
{
/// <summary>
/// Row updated event.
/// </summary>
[PublicAPI]
public event NpgsqlRowUpdatedEventHandler RowUpdated;
/// <summary>
/// Row updating event.
/// </summary>
public event NpgsqlRowUpdatingEventHandler RowUpdating;
/// <summary>
/// Default constructor.
/// </summary>
public NpgsqlDataAdapter() {}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommand"></param>
public NpgsqlDataAdapter(NpgsqlCommand selectCommand)
=> SelectCommand = selectCommand;
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommandText"></param>
/// <param name="selectConnection"></param>
public NpgsqlDataAdapter(string selectCommandText, NpgsqlConnection selectConnection)
: this(new NpgsqlCommand(selectCommandText, selectConnection)) {}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommandText"></param>
/// <param name="selectConnectionString"></param>
public NpgsqlDataAdapter(string selectCommandText, string selectConnectionString)
: this(selectCommandText, new NpgsqlConnection(selectConnectionString)) {}
/// <summary>
/// Create row updated event.
/// </summary>
protected override RowUpdatedEventArgs CreateRowUpdatedEvent([NotNull] DataRow dataRow, [NotNull] IDbCommand command,
System.Data.StatementType statementType,
[NotNull] DataTableMapping tableMapping)
=> new NpgsqlRowUpdatedEventArgs(dataRow, command, statementType, tableMapping);
/// <summary>
/// Create row updating event.
/// </summary>
protected override RowUpdatingEventArgs CreateRowUpdatingEvent([NotNull] DataRow dataRow, [NotNull] IDbCommand command,
System.Data.StatementType statementType,
[NotNull] DataTableMapping tableMapping)
=> new NpgsqlRowUpdatingEventArgs(dataRow, command, statementType, tableMapping);
/// <summary>
/// Raise the RowUpdated event.
/// </summary>
/// <param name="value"></param>
protected override void OnRowUpdated([NotNull] RowUpdatedEventArgs value)
{
//base.OnRowUpdated(value);
if (value is NpgsqlRowUpdatedEventArgs args)
RowUpdated?.Invoke(this, args);
//if (RowUpdated != null && value is NpgsqlRowUpdatedEventArgs args)
// RowUpdated(this, args);
}
/// <summary>
/// Raise the RowUpdating event.
/// </summary>
/// <param name="value"></param>
protected override void OnRowUpdating([NotNull] RowUpdatingEventArgs value)
{
if (value is NpgsqlRowUpdatingEventArgs args)
RowUpdating?.Invoke(this, args);
}
/// <summary>
/// Delete command.
/// </summary>
public new NpgsqlCommand DeleteCommand
{
get => (NpgsqlCommand)base.DeleteCommand;
set => base.DeleteCommand = value;
}
/// <summary>
/// Select command.
/// </summary>
public new NpgsqlCommand SelectCommand
{
get => (NpgsqlCommand)base.SelectCommand;
set => base.SelectCommand = value;
}
/// <summary>
/// Update command.
/// </summary>
public new NpgsqlCommand UpdateCommand
{
get => (NpgsqlCommand)base.UpdateCommand;
set => base.UpdateCommand = value;
}
/// <summary>
/// Insert command.
/// </summary>
public new NpgsqlCommand InsertCommand
{
get => (NpgsqlCommand)base.InsertCommand;
set => base.InsertCommand = value;
}
}
#pragma warning disable 1591
public class NpgsqlRowUpdatingEventArgs : RowUpdatingEventArgs
{
public NpgsqlRowUpdatingEventArgs(DataRow dataRow, IDbCommand command, System.Data.StatementType statementType,
DataTableMapping tableMapping)
: base(dataRow, command, statementType, tableMapping) {}
}
public class NpgsqlRowUpdatedEventArgs : RowUpdatedEventArgs
{
public NpgsqlRowUpdatedEventArgs(DataRow dataRow, IDbCommand command, System.Data.StatementType statementType,
DataTableMapping tableMapping)
: base(dataRow, command, statementType, tableMapping) {}
}
#pragma warning restore 1591
}