public void InsertUpdateDelete_Speed()
{
var dbFactory = new DbFactory(SqlClientFactory.Instance);
var cmdGenerator = new DbCommandBuilder(dbFactory);
var testData = new Dictionary <string, object> {
{ "name", "Test" },
{ "age", 20 },
{ "created", DateTime.Now }
};
var testQuery = new Query("test", (QField)"id" == (QConst)5);
var stopwatch = new Stopwatch();
int iterations = 0;
stopwatch.Start();
while (iterations < 500)
{
iterations++;
var insertCmd = cmdGenerator.GetInsertCommand("test", testData);
var updateCmd = cmdGenerator.GetUpdateCommand(testQuery, testData);
var deleteCmd = cmdGenerator.GetDeleteCommand(testQuery);
}
stopwatch.Stop();
Console.WriteLine("Speedtest for DbCommandGenerator Insert+Update+Delete commands ({1} times): {0}", stopwatch.Elapsed, iterations);
}
public void UpdateTable(string tablename, CorreggiDateListiniDS ds)
{
string query = string.Format(CultureInfo.InvariantCulture, "SELECT * FROM {0}", tablename);
using (DbDataAdapter a = BuildDataAdapter(query))
{
try
{
a.ContinueUpdateOnError = false;
DataTable dt = ds.Tables[tablename];
DbCommandBuilder cmd = BuildCommandBuilder(a);
a.UpdateCommand = cmd.GetUpdateCommand();
a.DeleteCommand = cmd.GetDeleteCommand();
a.InsertCommand = cmd.GetInsertCommand();
a.Update(dt);
}
catch (DBConcurrencyException ex)
{
}
catch
{
throw;
}
}
}
protected void ConfigureAdapterCommands(DataTable dt, DbDataAdapter da, DbCommandBuilder cb)
{
bool isIdentity;
string identityField;
switch (DBEngine)
{
case DBEngines.MSSqlServer:
break;
case DBEngines.Oracle:
{
da.InsertCommand = cb.GetInsertCommand();
da.UpdateCommand = cb.GetUpdateCommand();
da.DeleteCommand = cb.GetDeleteCommand();
OracleDbType identityType;
MapOracleIdentityField(dt, out isIdentity, out identityField, out identityType);
if (isIdentity)
{
OracleDataAdapter oDa = (OracleDataAdapter)da;
da.InsertCommand.CommandText += string.Format(" RETURNING {0}{1}{2} INTO :{3}{4}",
TablePrefix, identityField.ToUpper(), TableSuffix,
OracleParamIdentityPrefix, identityField);
oDa.InsertCommand.Parameters.Add(OracleParamIdentityPrefix + identityField, identityType).Direction = ParameterDirection.Output;
}
else
{
da.InsertCommand = cb.GetInsertCommand();
}
break;
}
}
}
protected override async Task <U3Pair> RunBatchingProxiedDbDataAdapterAsync(List <TestTable> randomDataSource, BatchingFakeProxiedDbDataAdapter adapter)
{
using (DbCommandBuilder <FakeDbCommand> cmdBuilder = await adapter.CreateCommandBuilderAsync().ConfigureAwait(false))
{
DataTable dataTable = new DataTable();
// `.Fill` returns the number of rows in the first table, not any subsequent tables. Yes, that's silly.
Int32 rowsInFirstTable = adapter.Fill(dataTable);
rowsInFirstTable.ShouldBe(40);
//
Dictionary <String, Int32> rowsModified = DataTableMethods.MutateDataTable(dataTable);
//
adapter.UpdateCommand = cmdBuilder.GetUpdateCommand();
adapter.UpdateCommand.NonQueryResultRowCountValue = (cmd) => DataTableMethods.GetUpdateStatementNonQueryResultRowCountValue(expectedTableName: "TODO", adapter, dataTable, cmd, rowsModified);
DataRow[] rows = dataTable.Rows.Cast <DataRow>().ToArray();
Int32 updatedRows = await adapter.Update3Async(dataTable);
// updatedRows.ShouldBe( rowsModified );
return(dataTable, rowsModified, updatedRows);
}
}
public static void PrintSqlCommandBuilder(DbCommandBuilder commandBuilder, string sComment /* = "" */)
{
PrintIfNotEmpty(sComment);
PrintDataAdapter(commandBuilder.DataAdapter, "");
Debug.WriteLine("SqlCommandBuilder InsertCommand " + commandBuilder.GetInsertCommand().CommandText);
Debug.WriteLine("SqlCommandBuilder UpdateCommand " + commandBuilder.GetUpdateCommand().CommandText);
Debug.WriteLine("SqlCommandBuilder DeleteCommand " + commandBuilder.GetDeleteCommand().CommandText);
}
/// <summary>
/// 设置DBDataAdapter的sql
/// </summary>
/// <param name="adapter"></param>
public static void SetDbDataAdapterCommand(DbDataAdapter adapter)
{
DbCommandBuilder cb = CreateCommandBuilder(adapter);
adapter.UpdateCommand = cb.GetUpdateCommand();
adapter.InsertCommand = cb.GetInsertCommand();
adapter.DeleteCommand = cb.GetDeleteCommand();
}
/// <summary>
/// 更新系SQLの自動生成を行う
/// </summary>
/// <param name="factory">データ取得時に指定されたデータプロバイダのDbProviderFactory</param>
/// <param name="adapter">データ取得時に生成したDbDataAdapter</param>
/// <param name="log">実行ログ出力先のStringBuilder</param>
private static void CreateUpdateCommand(DbProviderFactory factory, DbDataAdapter adapter, StringBuilder log)
{
// CommandBuilderを生成し、DbDataAdapterに関連付ける
DbCommandBuilder cb = factory.CreateCommandBuilder();
cb.DataAdapter = adapter;
log.AppendFormat("< {0} クラスのオブジェクトによって動的に生成された SQL >", cb.GetType().ToString());
log.AppendLine();
// INSERT文を生成する
log.AppendLine("INSERT SQL コマンド:");
log.AppendLine(cb.GetInsertCommand().CommandText);
log.AppendLine();
log.AppendLine("INSERT SQL コマンド パラメータ:");
foreach (DbParameter param in cb.GetInsertCommand().Parameters)
{
log.AppendFormat("{0} => DbType = {1}, SourceColumn = {2}", param.ParameterName, param.DbType, param.SourceColumn);
log.AppendLine();
}
log.AppendLine().AppendLine();
// UPDATE文を生成する
log.AppendLine("UPDATE SQL コマンド:");
log.AppendLine(cb.GetUpdateCommand().CommandText);
log.AppendLine();
log.AppendLine("UPDATE SQL コマンド パラメータ:");
foreach (DbParameter param in cb.GetUpdateCommand().Parameters)
{
log.AppendFormat("{0} => DbType = {1}, SourceColumn = {2}", param.ParameterName, param.DbType, param.SourceColumn);
log.AppendLine();
}
log.AppendLine().AppendLine();
// DELETE文を生成する
log.AppendLine("DELETE SQL コマンド:");
log.AppendLine(cb.GetDeleteCommand().CommandText);
log.AppendLine();
log.AppendLine("DELETE SQL コマンド パラメータ:");
foreach (DbParameter param in cb.GetDeleteCommand().Parameters)
{
log.AppendFormat("{0} => DbType = {1}, SourceColumn = {2}", param.ParameterName, param.DbType, param.SourceColumn);
log.AppendLine();
}
}
public AdapterStatement(DbCommand selectCommand, DbCommandBuilder commandBuilder)
{
_commandBuilder = commandBuilder;
_adapter = commandBuilder.DataAdapter;
_adapter.SelectCommand = selectCommand;
_adapter.UpdateCommand = commandBuilder.GetUpdateCommand();
_adapter.InsertCommand = commandBuilder.GetInsertCommand();
_adapter.DeleteCommand = commandBuilder.GetDeleteCommand();
}
public int ActualizaObjetoPersistenteByClavePrimaria <T>(T beanOriginal, T beanModificado, DbConnection connection, DbTransaction tr)
{
//calculamos el tipo de T para obtener información sobre los objetos que queremos contruir
//a partir de la base de datos
Type tipo = typeof(T);
//comprobamos que el tipo sea persistente
if (tipo.IsDefined(typeof(ObjetoPersistente), false))
{
//generamos el nombre de la tabla por defecto a partir del nombre del tipo
string nombreTabla = CalcularNombreTabla(tipo);
#region Calcular el comando de inserccion
DbCommandBuilder comandBuilder = CrearDBCommandBuilder(nombreTabla, connection, tr);
DbCommand comandoInsert = comandBuilder.GetUpdateCommand(true);
if (tr != null)
{
comandoInsert.Transaction = tr;
}
StringBuilder sql = new StringBuilder(comandoInsert.CommandText.Split("WHERE".ToCharArray())[0]);
AtributoPersistente k = GetFieldInfoPrimaryKey(beanOriginal);
if (k != null)
{
sql.AppendFormat(" WHERE {0}=:{0}", k.MapeadoPor);
}
#endregion
//connection.Close();
//connection.Open();
DbCommand updateCommand = _factoria.CreateCommand();
if (tr != null)
{
updateCommand.Transaction = tr;
}
updateCommand.CommandText = sql.ToString();
updateCommand.Connection = connection;
DbParameterCollection parametrosComando = updateCommand.Parameters;
//rellenamos las condiciones del comando para buscar el bean a modificar
RellenarParametrosFrom <T>(beanOriginal, parametrosComando, "Original_");
//rellenamos los valores que queremos modificar
RellenarParametrosFrom <T>(beanModificado, parametrosComando);
return(updateCommand.ExecuteNonQuery());
}
return(-1);
}
/// <summary>
/// Builds UPDATE command.
/// </summary>
public void BuildUpdateCommand()
{
if (Adapter == null || Adapter.DeleteCommand != null)
{
return;
}
EnsureBuilder();
Adapter.UpdateCommand = _Builder.GetUpdateCommand();
}
/// <summary>
/// Rellena los DbCommands (INSERT, UPDATE, DELETE) del Adaptador
/// </summary>
/// <param name="adapter">Adaptador a llenar</param>
private void FillAdapterCommands(DbDataAdapter adapter)
{
using (DbDataAdapter auxAdapter = ConnectorFactory.GetDataAdapter(Server))
{
auxAdapter.SelectCommand = adapter.SelectCommand;
using (DbCommandBuilder commandBuilder = ConnectorFactory.GetCommandBuilder(Server, auxAdapter))
{
adapter.DeleteCommand = commandBuilder.GetDeleteCommand(true);
adapter.UpdateCommand = commandBuilder.GetUpdateCommand(true);
adapter.InsertCommand = commandBuilder.GetInsertCommand(true);
SetupTransactionAdapterCommands(adapter);
}
}
}
public int Update(DataTable dt)
{
if (String.IsNullOrEmpty(dt.TableName))
{
throw new Exception("没有表名");
}
//貌似能自动打开释放连接
DbDataAdapter adapter = null;
DataTable tempDt = GetDataTable(dt.TableName, 1); //为了获取表的列数
if (dt.PrimaryKey.Length == 0 || (tempDt.Columns.Count != dt.Columns.Count)) //如果没有主键或者传入的表列不完整则调用自定义的构造
{
adapter = CreateAdapter(dt);
}
else
{
DbCommand cmd = this.DbProviderFactoryInstance.CreateCommand();
cmd.CommandText = "select * from " + dt.TableName;
adapter = this.DbProviderFactoryInstance.CreateDataAdapter();
adapter.SelectCommand = cmd;
DbCommandBuilder commandBuilder = this.DbProviderFactoryInstance.CreateCommandBuilder();
commandBuilder.DataAdapter = adapter;
adapter.DeleteCommand = commandBuilder.GetDeleteCommand(true);
adapter.InsertCommand = commandBuilder.GetInsertCommand(true);
adapter.UpdateCommand = commandBuilder.GetUpdateCommand(true);
}
string temp = "";
foreach (DataColumn column in dt.Columns) //查找是否有自动递增的自动 如果有并且数据库类型是sqlserver那么 加入运行插入自动递增字段
{
if (column.AutoIncrement)
{
temp += "SET IDENTITY_INSERT [" + dt.TableName + "] ON;";
break;
}
}
adapter.InsertCommand.CommandText = temp + adapter.InsertCommand.CommandText;
using (TransactionScope ts = new TransactionScope())
{
int result = adapter.Update(dt);
ts.Complete();
dt.AcceptChanges();
return(result);
}
}
public void UpdateRegistrazioneDS(string tablename, RilevazioniDS ds)
{
string query = string.Format(CultureInfo.InvariantCulture, "SELECT * FROM {0}", tablename);
using (DbDataAdapter a = BuildDataAdapter(query))
{
a.ContinueUpdateOnError = false;
DataTable dt = ds.Tables[tablename];
DbCommandBuilder cmd = BuildCommandBuilder(a);
a.UpdateCommand = cmd.GetUpdateCommand();
a.DeleteCommand = cmd.GetDeleteCommand();
a.InsertCommand = cmd.GetInsertCommand();
a.Update(dt);
}
}
public DatabaseReporter(DbProviderFactory factory, DbConnection connection)
{
this.connection = connection;
watch = System.Diagnostics.Stopwatch.StartNew();
DbCommand command = factory.CreateCommand();
command.CommandText = "SELECT * FROM " + Properties.Settings.Default.databaseprefix + "output";
command.Connection = connection;
kopadapter = factory.CreateDataAdapter();
kopadapter.SelectCommand = command;
DbCommandBuilder builder = factory.CreateCommandBuilder();
builder.ConflictOption = ConflictOption.OverwriteChanges;
builder.DataAdapter = kopadapter;
// Wanneer : Additional information: De Microsoft.Jet.OLEDB.4.0-provider is niet geregistreerd op de lokale computer.
// ==> draaien als x86
kopadapter.InsertCommand = builder.GetInsertCommand();
kopadapter.UpdateCommand = builder.GetUpdateCommand();
kopadapter.DeleteCommand = builder.GetDeleteCommand();
command = factory.CreateCommand();
command.CommandText = "SELECT * FROM " + Properties.Settings.Default.databaseprefix + "outputline";
command.Connection = connection;
regeladapter = factory.CreateDataAdapter();
regeladapter.SelectCommand = command;
builder = factory.CreateCommandBuilder();
builder.ConflictOption = ConflictOption.OverwriteChanges;
builder.DataAdapter = regeladapter;
regeladapter.InsertCommand = builder.GetInsertCommand();
regeladapter.UpdateCommand = builder.GetUpdateCommand();
regeladapter.DeleteCommand = builder.GetDeleteCommand();
}
internal void UpdateTable(string tablename, ScheduleServicesDS ds)
{
string query = string.Format(CultureInfo.InvariantCulture, "SELECT * FROM {0}", tablename);
using (DbDataAdapter a = BuildDataAdapter(query))
{
a.ContinueUpdateOnError = false;
DataTable dt = ds.Tables[tablename];
DbCommandBuilder cmd = BuildCommandBuilder(a);
a.UpdateCommand = cmd.GetUpdateCommand();
a.DeleteCommand = cmd.GetDeleteCommand();
a.InsertCommand = cmd.GetInsertCommand();
a.Update(dt);
}
}
private void frmanimals_Load(object sender, EventArgs e)
{
DbCommand idbCommand = Connection.provideConnection().CreateCommand();
idbCommand.CommandText = "select * from `animals`";
ad = returnAdapter();
DbCommandBuilder builder = returnBuilder();
builder.DataAdapter = ad;
ad.SelectCommand = idbCommand;
ad.Fill(this.newDataSet.animals);
ad.DeleteCommand = builder.GetDeleteCommand();
ad.UpdateCommand = builder.GetUpdateCommand();
ad.InsertCommand = builder.GetInsertCommand();
}
public void UpdateDatabase(DataTable dt, string selectSql)
{
DbDataAdapter dba = makeDBA(myType, selectSql);
DbCommandBuilder builder = openBuilder(myType);
builder.DataAdapter = dba;
dba.InsertCommand = builder.GetInsertCommand();
dba.UpdateCommand = builder.GetUpdateCommand();
dba.DeleteCommand = builder.GetDeleteCommand();
dba.UpdateBatchSize = 100;
dba.Update(dt);
dt.AcceptChanges();
}
public bool SaveDataTable(DataTable dataTable, string tableName)
{
string sql = string.Format("select * from {0}", tableName);
DbDataAdapter sda = CurrentDBConnection.CreateDbDataAdapter(sql, GetConnection());
DbCommandBuilder scb = CurrentDBConnection.CreateCommandBuilder();
sda.InsertCommand = scb.GetInsertCommand();
sda.UpdateCommand = scb.GetUpdateCommand();
sda.DeleteCommand = scb.GetDeleteCommand();
sda.Fill(dataTable);
var r = sda.Update(dataTable);
return(true);
}
public virtual bool UpDateTable(DataTable table, string tableName)
{
DbCommand command = GetDbCommand();
command.CommandText = string.Format("SELECT * FROM [{0}]", tableName);
command.Connection = GetDbConnection();
DbDataAdapter adapter = GetDbDataAdapter(command);
DbCommandBuilder builder = GetDbCommandBuilder(adapter);
adapter.InsertCommand = builder.GetInsertCommand();
adapter.DeleteCommand = builder.GetDeleteCommand();
adapter.UpdateCommand = builder.GetUpdateCommand();
int cou = adapter.Update(table);
return(cou > 0);
}
/// <summary>
/// 更新table到数据库
/// </summary>
/// <param name="dt">要更新的表</param>
/// <param name="sql">要执行的查询语句</param>
/// <returns></returns>
public int UpdateTable(DataTable dt, string sql)
{
ErrorMessage = "";
int affect = 0;
DbConnection connection = providerFactory.CreateConnection();
using (DbCommand command = CreateDbCommand(sql, null, CommandType.Text))
{
using (DbDataAdapter adapter = providerFactory.CreateDataAdapter())
{
command.CommandType = CommandType.Text;
//command.CommandText = sql;
command.CommandText = dt.ExtendedProperties["SQL"].ToString();
adapter.SelectCommand = command;
adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
using (DbCommandBuilder cb = providerFactory.CreateCommandBuilder())
{
try
{
cb.DataAdapter = adapter;
adapter.InsertCommand = cb.GetInsertCommand();
adapter.UpdateCommand = cb.GetUpdateCommand();
adapter.DeleteCommand = cb.GetDeleteCommand();
adapter.UpdateCommand.UpdatedRowSource = UpdateRowSource.None;
adapter.InsertCommand.UpdatedRowSource = UpdateRowSource.None;
adapter.DeleteCommand.UpdatedRowSource = UpdateRowSource.None;
command.Connection.Open();
if (dt.GetChanges() != null)
{
affect = adapter.Update(dt.GetChanges());
dt.AcceptChanges();
}
command.Connection.Close();
}
catch (Exception ex)
{
ErrorMessage = ex.Message;
affect = -1;
}
}
}
}
return(affect);
}
private void PerformUpdate(DataSet pDs, List <string> pTableOrder)
{
foreach (string MyTableName in pTableOrder)
{
DataRow[] MyRows = pDs.Tables[MyTableName].Select("", "", DataViewRowState.ModifiedCurrent);
if (MyRows.Length > 0)
{
m_CurrentUpdating = MyTableName;
DbDataAdapter MyDa = CreateDataAdapter(pDs, MyTableName);
DbCommandBuilder MyCB = CreateCommandBuilder(MyDa);
MyDa.UpdateCommand = MyCB.GetUpdateCommand();
MyDa.UpdateCommand.Transaction = m_Trans;
MyDa.UpdateBatchSize = m_BatchSize;
MyDa.Update(MyRows);
}
}
}
//Erzeugt einen DbDataAdapter für die Verbindung und den SQL-Befehl
//Benötigt eine DbProviderFactory, Eine Verbindung und ein SQL-Befehl
public static DbDataAdapter CreateDbDataAdapter(DbProviderFactory dbProviderFactory, DbConnection dbConnection, string sql)
{
DbCommand dbSelectCommand = dbProviderFactory.CreateCommand();
dbSelectCommand.Connection = dbConnection;
dbSelectCommand.CommandText = sql;
DbDataAdapter dbDataAdapter = dbProviderFactory.CreateDataAdapter();
dbDataAdapter.SelectCommand = dbSelectCommand;
DbCommandBuilder dbCommandBuilder = dbProviderFactory.CreateCommandBuilder();
dbCommandBuilder.DataAdapter = dbDataAdapter;
dbDataAdapter.InsertCommand = dbCommandBuilder.GetInsertCommand();
dbDataAdapter.UpdateCommand = dbCommandBuilder.GetUpdateCommand();
dbDataAdapter.DeleteCommand = dbCommandBuilder.GetDeleteCommand();
return(dbDataAdapter);
}
public void UpdateDistintaBaseTable(ArticoliDS ds)
{
string query = string.Format(CultureInfo.InvariantCulture, "SELECT * FROM {0}", ds.DIBA.TableName);
using (DbDataAdapter a = BuildDataAdapter(query))
{
InstallRowUpdatedHandler(a, UpdateDistintaBaseHander);
a.ContinueUpdateOnError = false;
DataTable dt = ds.DIBA;
DbCommandBuilder cmd = BuildCommandBuilder(a);
a.AcceptChangesDuringFill = true;
a.UpdateCommand = cmd.GetUpdateCommand();
a.DeleteCommand = cmd.GetDeleteCommand();
a.InsertCommand = cmd.GetInsertCommand();
a.Update(dt);
}
}
/// <summary>
/// 批量更新
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public bool UpdateDataTable(DataTable dt, string selectSql)
{
bool resule = true;
if (dt == null || dt.Rows.Count <= 0)
{
return(resule);
}
this.Open();
DbTransaction trans = connection.BeginTransaction();
try
{
DbProviderFactory dbfactory = GetFactory();
DbCommand cmd = connection.CreateCommand();
cmd.CommandText = selectSql;
DbDataAdapter dr = dbfactory.CreateDataAdapter();
dr.SelectCommand = cmd;
dr.SelectCommand.Transaction = trans;
DbCommandBuilder builder = dbfactory.CreateCommandBuilder();
builder.QuotePrefix = "[";
builder.QuoteSuffix = "]";
builder.ConflictOption = ConflictOption.OverwriteChanges;
builder.SetAllValues = false;
builder.DataAdapter = dr;
dr.InsertCommand = builder.GetInsertCommand();
dr.UpdateCommand = builder.GetUpdateCommand();
dr.DeleteCommand = builder.GetDeleteCommand();
resule = dr.Update(dt) > 0;
// dt.AcceptChanges();
trans.Commit();
return(resule);
}
catch (Exception ex)
{
trans.Rollback();
throw new Exception(ex.Message);
}
finally
{
this.Close();
}
}
public void UpdateTableSPControlli(SchedeProcessoDS ds)
{
string query = string.Format(CultureInfo.InvariantCulture, "SELECT * FROM {0}", ds.SPCONTROLLI.TableName);
using (DbDataAdapter a = BuildDataAdapter(query))
{
InstallRowUpdatedHandler(a, UpdateSPCOntrolloHander);
a.ContinueUpdateOnError = false;
DataTable dt = ds.SPCONTROLLI;
DbCommandBuilder cmd = BuildCommandBuilder(a);
a.AcceptChangesDuringFill = true;
a.UpdateCommand = cmd.GetUpdateCommand();
a.DeleteCommand = cmd.GetDeleteCommand();
a.InsertCommand = cmd.GetInsertCommand();
a.Update(dt);
}
}
static void Main(string[] args)
{
//DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.OracleClient");
DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.SqlClient");
DbConnection connection = factory.CreateConnection();
connection.ConnectionString = SQL_CONN;
using (connection) {
//runClassicSelect(connection, factory);
string sql = "SELECT id, name FROM People";
DbCommand command = connection.CreateCommand();
command.CommandText = sql;
DbDataAdapter adapter = factory.CreateDataAdapter();
adapter.SelectCommand = command;
DbCommandBuilder builder = factory.CreateCommandBuilder();
builder.DataAdapter = adapter;
adapter.InsertCommand = builder.GetInsertCommand();
adapter.UpdateCommand = builder.GetUpdateCommand();
adapter.DeleteCommand = builder.GetDeleteCommand();
DataTable people = new DataTable("People");
adapter.Fill(people);
print(people);
people.Rows.Add(23, "Albert");
print(people);
Console.ReadKey();
adapter.Update(people);
foreach (DataRow row in people.Select("id = 23"))
{
row.Delete();
}
print(people);
Console.ReadKey();
adapter.Update(people);
}
Console.ReadKey();
}
/// <summary>
/// Gets the adapter.
/// </summary>
/// <param name="factory">The factory.</param>
/// <param name="connectionConfiguration">The connection configuration.</param>
/// <param name="query">The query.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">factory;The expected provider factory is not here.</exception>
/// <exception cref="System.ArgumentException">
/// The DBMS Connection string was not specified.
/// or
/// The DBMS query was not specified.
/// </exception>
public static DbDataAdapter GetAdapter(DbProviderFactory factory, string connectionConfiguration, string query)
{
if (factory == null)
{
throw new ArgumentNullException("factory", "The expected provider factory is not here.");
}
if (string.IsNullOrEmpty(connectionConfiguration))
{
throw new ArgumentException("The DBMS Connection string was not specified.");
}
if (string.IsNullOrEmpty(query))
{
throw new ArgumentException("The DBMS query was not specified.");
}
DbDataAdapter adapter = factory.CreateDataAdapter();
if (string.IsNullOrEmpty(connectionConfiguration) && string.IsNullOrEmpty(query))
{
return(adapter);
}
DbConnection connection = factory.CreateConnection();
connection.ConnectionString = connectionConfiguration;
DbCommand selectCommand = factory.CreateCommand();
selectCommand.CommandText = query;
selectCommand.Connection = connection;
DbCommandBuilder builder = factory.CreateCommandBuilder();
builder.DataAdapter = adapter;
adapter.SelectCommand = selectCommand;
adapter.DeleteCommand = builder.GetDeleteCommand();
adapter.InsertCommand = builder.GetInsertCommand();
adapter.UpdateCommand = builder.GetUpdateCommand();
return(adapter);
}
protected virtual DbDataAdapter CreateDbDataAdapter(string tableName)
{
DbCommand dbSelectCommand = _aData.ProviderFactory.CreateCommand();
dbSelectCommand.Connection = _dbConnection;
dbSelectCommand.CommandText = string.Format("SELECT * FROM {0}", tableName);
DbDataAdapter dbDataAdapter = _aData.ProviderFactory.CreateDataAdapter();
dbDataAdapter.SelectCommand = dbSelectCommand;
// --- fertig, wenn keine schreibenden Datenbankzugriffe erforderlich ----
DbCommandBuilder dbCommandBuilder = _aData.ProviderFactory.CreateCommandBuilder();
dbCommandBuilder.DataAdapter = dbDataAdapter;
dbDataAdapter.InsertCommand = dbCommandBuilder.GetInsertCommand();
dbDataAdapter.UpdateCommand = dbCommandBuilder.GetUpdateCommand();
dbDataAdapter.DeleteCommand = dbCommandBuilder.GetDeleteCommand();
return(dbDataAdapter);
}
public void UpdateTable(DataSet dataSet)
{
int iAffected = 0;
try
{
ObjDataAdapter.SelectCommand.CommandText = MstrQuery;
ObjCommand.CommandType = CommandType.StoredProcedure;
ObjCommandBuilder.DataAdapter = ObjDataAdapter;
ObjDataAdapter.InsertCommand = ObjCommandBuilder.GetInsertCommand();
ObjDataAdapter.UpdateCommand = ObjCommandBuilder.GetUpdateCommand();
ObjDataAdapter.DeleteCommand = ObjCommandBuilder.GetDeleteCommand();
iAffected = ObjDataAdapter.Update(dataSet);
}
catch (Exception ex)
{
throw new SystemException(ex.Message, ex);
}
}
public void Save()
{
if (Layerers.Count == 0 && ManualLayerers.Count == 0 && ds.HasChanges() == false)
{
return;
}
grid.ApplyEditAndEnd();
PreCommit();
if (ds.HasChanges() == false)
{
return;
}
Adapter.UpdateCommand = builder.GetUpdateCommand(); //might be reduant
Adapter.Update(ds);
_refresh_doPreDisplay = true;
//_do_reorder = true;
Open();
ds.AcceptChanges();
Close();
}
