protected virtual void OnFiltering(SqlDataSourceFilteringEventArgs e)
{
SqlDataSourceFilteringEventHandler handler = base.Events[EventFiltering] as SqlDataSourceFilteringEventHandler;
if (handler != null)
{
handler(this, e);
}
}
protected virtual void OnFiltering(SqlDataSourceFilteringEventArgs e)
{
if (!HasEvents())
{
return;
}
SqlDataSourceFilteringEventHandler h = Events [EventFiltering] as SqlDataSourceFilteringEventHandler;
if (h != null)
{
h(this, e);
}
}
protected void CourseIndexDataSource_Filtering(object sender, SqlDataSourceFilteringEventArgs e)
{
if (e.ParameterValues[1] != null)
{
//防注入，替换四个关键key
// e.ParameterValues[1].ToString().Replace("'", "''");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("'", "''");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("[", "[[]");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("%", "[%]");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("_", "[_]");
/*
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("[", "[[]"));
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("%", "[%]"));
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("_", "[_]"));
*/
}
}
protected void UserStatisticalDataSource_Filtering(object sender, SqlDataSourceFilteringEventArgs e)
{
if (e.ParameterValues[0].ToString().Equals("all"))
{
e.ParameterValues[0] = null;
return;
}
if (e.ParameterValues[1] != null)
{
//防注入，替换四个关键key
// e.ParameterValues[1].ToString().Replace("'", "''");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("'", "''");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("[", "[[]");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("%", "[%]");
e.ParameterValues[1] = e.ParameterValues[1].ToString().Replace("_", "[_]");
/*
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("[", "[[]"));
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("%", "[%]"));
AdminNewsListDataSource.FilterExpression.Replace("{1}", e.ParameterValues[1].ToString().Replace("_", "[_]"));
*/
}
}
protected virtual new void OnFiltering(SqlDataSourceFilteringEventArgs e)
{
}
protected virtual void OnFiltering (SqlDataSourceFilteringEventArgs e)
{
if (!HasEvents ()) return;
SqlDataSourceFilteringEventHandler h = Events [EventFiltering] as SqlDataSourceFilteringEventHandler;
if (h != null)
h (this, e);
}
protected internal override IEnumerable ExecuteSelect (DataSourceSelectArguments arguments)
{
if (SortParameterName.Length > 0 && SelectCommandType == SqlDataSourceCommandType.Text)
throw new NotSupportedException ("The SortParameterName property is only supported with stored procedure commands in SqlDataSource");
if (arguments.SortExpression.Length > 0 && owner.DataSourceMode == SqlDataSourceMode.DataReader)
throw new NotSupportedException ("SqlDataSource cannot sort. Set DataSourceMode to DataSet to enable sorting.");
if (arguments.StartRowIndex > 0 || arguments.MaximumRows > 0)
throw new NotSupportedException ("SqlDataSource does not have paging enabled. Set the DataSourceMode to DataSet to enable paging.");
if (FilterExpression.Length > 0 && owner.DataSourceMode == SqlDataSourceMode.DataReader)
throw new NotSupportedException ("SqlDataSource only supports filtering when the data source's DataSourceMode is set to DataSet.");
InitConnection ();
DbCommand command = factory.CreateCommand ();
command.CommandText = SelectCommand;
command.Connection = connection;
if (SelectCommandType == SqlDataSourceCommandType.Text)
command.CommandType = CommandType.Text;
else {
command.CommandType = CommandType.StoredProcedure;
if (SortParameterName.Length > 0 && arguments.SortExpression.Length > 0)
command.Parameters.Add (CreateDbParameter (SortParameterName, arguments.SortExpression));
}
if (SelectParameters.Count > 0)
InitializeParameters (command, SelectParameters, null, null, false);
Exception exception = null;
if (owner.DataSourceMode == SqlDataSourceMode.DataSet) {
DataView dataView = null;
if (owner.EnableCaching)
dataView = (DataView) owner.Cache.GetCachedObject (SelectCommand, SelectParameters);
if (dataView == null) {
SqlDataSourceSelectingEventArgs selectingArgs = new SqlDataSourceSelectingEventArgs (command, arguments);
OnSelecting (selectingArgs);
if (selectingArgs.Cancel || !PrepareNullParameters (command, CancelSelectOnNullParameter)) {
return null;
}
try {
DbDataAdapter adapter = factory.CreateDataAdapter ();
DataSet dataset = new DataSet ();
adapter.SelectCommand = command;
adapter.Fill (dataset, name);
dataView = dataset.Tables [0].DefaultView;
if (dataView == null)
throw new InvalidOperationException ();
}
catch (Exception e) {
exception = e;
}
int rowsAffected = (dataView == null) ? 0 : dataView.Count;
SqlDataSourceStatusEventArgs selectedArgs = new SqlDataSourceStatusEventArgs (command, rowsAffected, exception);
OnSelected (selectedArgs);
if (exception != null && !selectedArgs.ExceptionHandled)
throw exception;
if (owner.EnableCaching)
owner.Cache.SetCachedObject (SelectCommand, selectParameters, dataView);
}
if (SortParameterName.Length == 0 || SelectCommandType == SqlDataSourceCommandType.Text)
dataView.Sort = arguments.SortExpression;
if (FilterExpression.Length > 0) {
IOrderedDictionary fparams = FilterParameters.GetValues (context, owner);
SqlDataSourceFilteringEventArgs fargs = new SqlDataSourceFilteringEventArgs (fparams);
OnFiltering (fargs);
if (!fargs.Cancel) {
object [] formatValues = new object [fparams.Count];
for (int n = 0; n < formatValues.Length; n++) {
formatValues [n] = fparams [n];
if (formatValues [n] == null) return dataView;
}
dataView.RowFilter = string.Format (FilterExpression, formatValues);
}
}
return dataView;
}
else {
SqlDataSourceSelectingEventArgs selectingArgs = new SqlDataSourceSelectingEventArgs (command, arguments);
OnSelecting (selectingArgs);
if (selectingArgs.Cancel || !PrepareNullParameters (command, CancelSelectOnNullParameter)) {
return null;
}
DbDataReader reader = null;
bool closed = connection.State == ConnectionState.Closed;
if (closed)
connection.Open ();
try {
reader = command.ExecuteReader (closed ? CommandBehavior.CloseConnection : CommandBehavior.Default);
}
catch (Exception e) {
exception = e;
}
SqlDataSourceStatusEventArgs selectedArgs =
new SqlDataSourceStatusEventArgs (command, reader.RecordsAffected, exception);
OnSelected (selectedArgs);
if (exception != null && !selectedArgs.ExceptionHandled)
throw exception;
return reader;
}
}
protected internal override IEnumerable ExecuteSelect(DataSourceSelectArguments arguments)
{
if (SortParameterName.Length > 0 && SelectCommandType == SqlDataSourceCommandType.Text)
{
throw new NotSupportedException("The SortParameterName property is only supported with stored procedure commands in SqlDataSource");
}
if (arguments.SortExpression.Length > 0 && owner.DataSourceMode == SqlDataSourceMode.DataReader)
{
throw new NotSupportedException("SqlDataSource cannot sort. Set DataSourceMode to DataSet to enable sorting.");
}
if (arguments.StartRowIndex > 0 || arguments.MaximumRows > 0)
{
throw new NotSupportedException("SqlDataSource does not have paging enabled. Set the DataSourceMode to DataSet to enable paging.");
}
if (FilterExpression.Length > 0 && owner.DataSourceMode == SqlDataSourceMode.DataReader)
{
throw new NotSupportedException("SqlDataSource only supports filtering when the data source's DataSourceMode is set to DataSet.");
}
InitConnection();
DbCommand command = factory.CreateCommand();
command.CommandText = SelectCommand;
command.Connection = connection;
if (SelectCommandType == SqlDataSourceCommandType.Text)
{
command.CommandType = CommandType.Text;
}
else
{
command.CommandType = CommandType.StoredProcedure;
if (SortParameterName.Length > 0 && arguments.SortExpression.Length > 0)
{
command.Parameters.Add(CreateDbParameter(SortParameterName, arguments.SortExpression));
}
}
if (SelectParameters.Count > 0)
{
InitializeParameters(command, SelectParameters, null, null, false);
}
Exception exception = null;
if (owner.DataSourceMode == SqlDataSourceMode.DataSet)
{
DataView dataView = null;
if (owner.EnableCaching)
{
dataView = (DataView)owner.Cache.GetCachedObject(SelectCommand, SelectParameters);
}
if (dataView == null)
{
SqlDataSourceSelectingEventArgs selectingArgs = new SqlDataSourceSelectingEventArgs(command, arguments);
OnSelecting(selectingArgs);
if (selectingArgs.Cancel || !PrepareNullParameters(command, CancelSelectOnNullParameter))
{
return(null);
}
try {
DbDataAdapter adapter = factory.CreateDataAdapter();
DataSet dataset = new DataSet();
adapter.SelectCommand = command;
adapter.Fill(dataset, name);
dataView = dataset.Tables [0].DefaultView;
if (dataView == null)
{
throw new InvalidOperationException();
}
}
catch (Exception e) {
exception = e;
}
int rowsAffected = (dataView == null) ? 0 : dataView.Count;
SqlDataSourceStatusEventArgs selectedArgs = new SqlDataSourceStatusEventArgs(command, rowsAffected, exception);
OnSelected(selectedArgs);
if (exception != null && !selectedArgs.ExceptionHandled)
{
throw exception;
}
if (owner.EnableCaching)
{
owner.Cache.SetCachedObject(SelectCommand, selectParameters, dataView);
}
}
if (SortParameterName.Length == 0 || SelectCommandType == SqlDataSourceCommandType.Text)
{
dataView.Sort = arguments.SortExpression;
}
if (FilterExpression.Length > 0)
{
IOrderedDictionary fparams = FilterParameters.GetValues(context, owner);
SqlDataSourceFilteringEventArgs fargs = new SqlDataSourceFilteringEventArgs(fparams);
OnFiltering(fargs);
if (!fargs.Cancel)
{
object [] formatValues = new object [fparams.Count];
for (int n = 0; n < formatValues.Length; n++)
{
formatValues [n] = fparams [n];
if (formatValues [n] == null)
{
return(dataView);
}
}
dataView.RowFilter = string.Format(FilterExpression, formatValues);
}
}
return(dataView);
}
else
{
SqlDataSourceSelectingEventArgs selectingArgs = new SqlDataSourceSelectingEventArgs(command, arguments);
OnSelecting(selectingArgs);
if (selectingArgs.Cancel || !PrepareNullParameters(command, CancelSelectOnNullParameter))
{
return(null);
}
DbDataReader reader = null;
bool closed = connection.State == ConnectionState.Closed;
if (closed)
{
connection.Open();
}
try {
reader = command.ExecuteReader(closed ? CommandBehavior.CloseConnection : CommandBehavior.Default);
}
catch (Exception e) {
exception = e;
}
SqlDataSourceStatusEventArgs selectedArgs =
new SqlDataSourceStatusEventArgs(command, reader.RecordsAffected, exception);
OnSelected(selectedArgs);
if (exception != null && !selectedArgs.ExceptionHandled)
{
throw exception;
}
return(reader);
}
}
/// <devdoc>
/// Returns all the rows of the datasource.
/// Parameters are taken from the SqlDataSource.Parameters property collection.
/// If DataSourceMode is set to DataSet then a DataView is returned.
/// If DataSourceMode is set to DataReader then a DataReader is returned, and it must be closed when done.
/// </devdoc>
protected internal override IEnumerable ExecuteSelect(DataSourceSelectArguments arguments) {
if (SelectCommand.Length == 0) {
return null;
}
DbConnection connection = _owner.CreateConnection(_owner.ConnectionString);
if (connection == null) {
throw new InvalidOperationException(SR.GetString(SR.SqlDataSourceView_CouldNotCreateConnection, _owner.ID));
}
DataSourceCache cache = _owner.Cache;
bool cacheEnabled = (cache != null) && (cache.Enabled);
//int startRowIndex = arguments.StartRowIndex;
//int maximumRows = arguments.MaximumRows;
string sortExpression = arguments.SortExpression;
if (CanPage) {
arguments.AddSupportedCapabilities(DataSourceCapabilities.Page);
}
if (CanSort) {
arguments.AddSupportedCapabilities(DataSourceCapabilities.Sort);
}
if (CanRetrieveTotalRowCount) {
arguments.AddSupportedCapabilities(DataSourceCapabilities.RetrieveTotalRowCount);
}
// If caching is enabled, load DataSet from cache
if (cacheEnabled) {
if (_owner.DataSourceMode != SqlDataSourceMode.DataSet) {
throw new NotSupportedException(SR.GetString(SR.SqlDataSourceView_CacheNotSupported, _owner.ID));
}
arguments.RaiseUnsupportedCapabilitiesError(this);
DataSet dataSet = _owner.LoadDataFromCache(0, -1) as DataSet;
if (dataSet != null) {
/*if (arguments.RetrieveTotalRowCount) {
int cachedTotalRowCount = _owner.LoadTotalRowCountFromCache();
if (cachedTotalRowCount >= 0) {
arguments.TotalRowCount = cachedTotalRowCount;
}
else {
// query for row count and then save it in cache
cachedTotalRowCount = QueryTotalRowCount(connection, arguments);
arguments.TotalRowCount = cachedTotalRowCount;
_owner.SaveTotalRowCountToCache(cachedTotalRowCount);
}
}*/
IOrderedDictionary parameterValues = FilterParameters.GetValues(_context, _owner);
if (FilterExpression.Length > 0) {
SqlDataSourceFilteringEventArgs filterArgs = new SqlDataSourceFilteringEventArgs(parameterValues);
OnFiltering(filterArgs);
if (filterArgs.Cancel) {
return null;
}
}
return FilteredDataSetHelper.CreateFilteredDataView(dataSet.Tables[0], sortExpression, FilterExpression, parameterValues);
}
}
// Create command and add parameters
DbCommand command = _owner.CreateCommand(SelectCommand, connection);
InitializeParameters(command, SelectParameters, null);
command.CommandType = GetCommandType(SelectCommandType);
// Raise event to allow customization and cancellation
SqlDataSourceSelectingEventArgs selectingEventArgs = new SqlDataSourceSelectingEventArgs(command, arguments);
OnSelecting(selectingEventArgs);
// If the operation was cancelled, exit immediately
if (selectingEventArgs.Cancel) {
return null;
}
// Add the sort parameter to allow for custom stored procedure sorting, if necessary
string sortParameterName = SortParameterName;
if (sortParameterName.Length > 0) {
if (command.CommandType != CommandType.StoredProcedure) {
throw new NotSupportedException(SR.GetString(SR.SqlDataSourceView_SortParameterRequiresStoredProcedure, _owner.ID));
}
command.Parameters.Add(_owner.CreateParameter(ParameterPrefix + sortParameterName, sortExpression));
// We reset the sort expression here so that we pretend as
// though we're not really sorting (since the developer is
// worrying about it instead of us).
arguments.SortExpression = String.Empty;
}
arguments.RaiseUnsupportedCapabilitiesError(this);
// reset these values, since they might have changed in the OnSelecting event
sortExpression = arguments.SortExpression;
//startRowIndex = arguments.StartRowIndex;
//maximumRows = arguments.MaximumRows;
// Perform null check if user wants to cancel on any null parameter value
if (CancelSelectOnNullParameter) {
int paramCount = command.Parameters.Count;
for (int i = 0; i < paramCount; i++) {
DbParameter parameter = command.Parameters[i];
if ((parameter != null) &&
(parameter.Value == null) &&
((parameter.Direction == ParameterDirection.Input) || (parameter.Direction == ParameterDirection.InputOutput))) {
return null;
}
}
}
// Replace null values in parameters with DBNull.Value
ReplaceNullValues(command);
/*if (arguments.RetrieveTotalRowCount && SelectCountCommand.Length > 0) {
int cachedTotalRowCount = -1;
if (cacheEnabled) {
cachedTotalRowCount = _owner.LoadTotalRowCountFromCache();
if (cachedTotalRowCount >= 0) {
arguments.TotalRowCount = cachedTotalRowCount;
}
}
if (cachedTotalRowCount < 0) {
cachedTotalRowCount = QueryTotalRowCount(connection, arguments);
arguments.TotalRowCount = cachedTotalRowCount;
if (cacheEnabled) {
_owner.SaveTotalRowCountToCache(cachedTotalRowCount);
}
}
}*/
IEnumerable selectResult = null;
switch (_owner.DataSourceMode) {
case SqlDataSourceMode.DataSet:
{
SqlCacheDependency cacheDependency = null;
if (cacheEnabled && cache is SqlDataSourceCache) {
SqlDataSourceCache sqlCache = (SqlDataSourceCache)cache;
if (String.Equals(sqlCache.SqlCacheDependency, SqlDataSourceCache.Sql9CacheDependencyDirective, StringComparison.OrdinalIgnoreCase)) {
if (!(command is System.Data.SqlClient.SqlCommand)) {
throw new InvalidOperationException(SR.GetString(SR.SqlDataSourceView_CommandNotificationNotSupported, _owner.ID));
}
cacheDependency = new SqlCacheDependency((System.Data.SqlClient.SqlCommand)command);
}
}
DbDataAdapter adapter = _owner.CreateDataAdapter(command);
DataSet dataSet = new DataSet();
int rowsAffected = 0;
bool eventRaised = false;
try {
rowsAffected = adapter.Fill(dataSet, Name);
// Raise the Selected event
eventRaised = true;
SqlDataSourceStatusEventArgs selectedEventArgs = new SqlDataSourceStatusEventArgs(command, rowsAffected, null);
OnSelected(selectedEventArgs);
}
catch (Exception ex) {
if (!eventRaised) {
// Raise the Selected event
SqlDataSourceStatusEventArgs selectedEventArgs = new SqlDataSourceStatusEventArgs(command, rowsAffected, ex);
OnSelected(selectedEventArgs);
if (!selectedEventArgs.ExceptionHandled) {
throw;
}
}
else {
bool isCustomException;
ex = BuildCustomException(ex, DataSourceOperation.Select, command, out isCustomException);
if (isCustomException) {
throw ex;
}
else {
throw;
}
}
}
finally {
if (connection.State == ConnectionState.Open) {
connection.Close();
}
}
// If caching is enabled, save DataSet to cache
DataTable dataTable = (dataSet.Tables.Count > 0 ? dataSet.Tables[0] : null);
if (cacheEnabled && dataTable != null) {
_owner.SaveDataToCache(0, -1, dataSet, cacheDependency);
}
if (dataTable != null) {
IOrderedDictionary parameterValues = FilterParameters.GetValues(_context, _owner);
if (FilterExpression.Length > 0) {
SqlDataSourceFilteringEventArgs filterArgs = new SqlDataSourceFilteringEventArgs(parameterValues);
OnFiltering(filterArgs);
if (filterArgs.Cancel) {
return null;
}
}
selectResult = FilteredDataSetHelper.CreateFilteredDataView(dataTable, sortExpression, FilterExpression, parameterValues);
}
break;
}
case SqlDataSourceMode.DataReader:
{
if (FilterExpression.Length > 0) {
throw new NotSupportedException(SR.GetString(SR.SqlDataSourceView_FilterNotSupported, _owner.ID));
}
if (sortExpression.Length > 0) {
throw new NotSupportedException(SR.GetString(SR.SqlDataSourceView_SortNotSupported, _owner.ID));
}
bool eventRaised = false;
try {
if (connection.State != ConnectionState.Open) {
connection.Open();
}
selectResult = command.ExecuteReader(CommandBehavior.CloseConnection);
// Raise the Selected event
eventRaised = true;
SqlDataSourceStatusEventArgs selectedEventArgs = new SqlDataSourceStatusEventArgs(command, 0, null);
OnSelected(selectedEventArgs);
}
catch (Exception ex) {
if (!eventRaised) {
// Raise the Selected event
SqlDataSourceStatusEventArgs selectedEventArgs = new SqlDataSourceStatusEventArgs(command, 0, ex);
OnSelected(selectedEventArgs);
if (!selectedEventArgs.ExceptionHandled) {
throw;
}
}
else {
bool isCustomException;
ex = BuildCustomException(ex, DataSourceOperation.Select, command, out isCustomException);
if (isCustomException) {
throw ex;
}
else {
throw;
}
}
}
break;
}
}
return selectResult;
}
protected virtual void OnFiltering(SqlDataSourceFilteringEventArgs e) {
SqlDataSourceFilteringEventHandler handler = Events[EventFiltering] as SqlDataSourceFilteringEventHandler;
if (handler != null) {
handler(this, e);
}
}
protected internal override IEnumerable ExecuteSelect(DataSourceSelectArguments arguments)
{
SqlCacheDependency dependency;
if (this.SelectCommand.Length == 0)
{
return(null);
}
DbConnection connection = this._owner.CreateConnection(this._owner.ConnectionString);
if (connection == null)
{
throw new InvalidOperationException(System.Web.SR.GetString("SqlDataSourceView_CouldNotCreateConnection", new object[] { this._owner.ID }));
}
DataSourceCache cache = this._owner.Cache;
bool flag = (cache != null) && cache.Enabled;
string sortExpression = arguments.SortExpression;
if (this.CanPage)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.Page);
}
if (this.CanSort)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.Sort);
}
if (this.CanRetrieveTotalRowCount)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.RetrieveTotalRowCount);
}
if (flag)
{
if (this._owner.DataSourceMode != SqlDataSourceMode.DataSet)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_CacheNotSupported", new object[] { this._owner.ID }));
}
arguments.RaiseUnsupportedCapabilitiesError(this);
DataSet set = this._owner.LoadDataFromCache(0, -1) as DataSet;
if (set != null)
{
IOrderedDictionary parameterValues = this.FilterParameters.GetValues(this._context, this._owner);
if (this.FilterExpression.Length > 0)
{
SqlDataSourceFilteringEventArgs args = new SqlDataSourceFilteringEventArgs(parameterValues);
this.OnFiltering(args);
if (args.Cancel)
{
return(null);
}
}
return(FilteredDataSetHelper.CreateFilteredDataView(set.Tables[0], sortExpression, this.FilterExpression, parameterValues));
}
}
DbCommand command = this._owner.CreateCommand(this.SelectCommand, connection);
this.InitializeParameters(command, this.SelectParameters, null);
command.CommandType = GetCommandType(this.SelectCommandType);
SqlDataSourceSelectingEventArgs e = new SqlDataSourceSelectingEventArgs(command, arguments);
this.OnSelecting(e);
if (e.Cancel)
{
return(null);
}
string sortParameterName = this.SortParameterName;
if (sortParameterName.Length > 0)
{
if (command.CommandType != CommandType.StoredProcedure)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_SortParameterRequiresStoredProcedure", new object[] { this._owner.ID }));
}
command.Parameters.Add(this._owner.CreateParameter(this.ParameterPrefix + sortParameterName, sortExpression));
arguments.SortExpression = string.Empty;
}
arguments.RaiseUnsupportedCapabilitiesError(this);
sortExpression = arguments.SortExpression;
if (this.CancelSelectOnNullParameter)
{
int count = command.Parameters.Count;
for (int i = 0; i < count; i++)
{
DbParameter parameter = command.Parameters[i];
if (((parameter != null) && (parameter.Value == null)) && ((parameter.Direction == ParameterDirection.Input) || (parameter.Direction == ParameterDirection.InputOutput)))
{
return(null);
}
}
}
this.ReplaceNullValues(command);
IEnumerable enumerable = null;
switch (this._owner.DataSourceMode)
{
case SqlDataSourceMode.DataReader:
{
if (this.FilterExpression.Length > 0)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_FilterNotSupported", new object[] { this._owner.ID }));
}
if (sortExpression.Length > 0)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_SortNotSupported", new object[] { this._owner.ID }));
}
bool flag4 = false;
try
{
if (connection.State != ConnectionState.Open)
{
connection.Open();
}
enumerable = command.ExecuteReader(CommandBehavior.CloseConnection);
flag4 = true;
SqlDataSourceStatusEventArgs args6 = new SqlDataSourceStatusEventArgs(command, 0, null);
this.OnSelected(args6);
}
catch (Exception exception2)
{
bool flag5;
if (!flag4)
{
SqlDataSourceStatusEventArgs args7 = new SqlDataSourceStatusEventArgs(command, 0, exception2);
this.OnSelected(args7);
if (!args7.ExceptionHandled)
{
throw;
}
return(enumerable);
}
exception2 = this.BuildCustomException(exception2, DataSourceOperation.Select, command, out flag5);
if (flag5)
{
throw exception2;
}
throw;
}
return(enumerable);
}
case SqlDataSourceMode.DataSet:
dependency = null;
if (flag && (cache is SqlDataSourceCache))
{
SqlDataSourceCache cache2 = (SqlDataSourceCache)cache;
if (string.Equals(cache2.SqlCacheDependency, "CommandNotification", StringComparison.OrdinalIgnoreCase))
{
if (!(command is SqlCommand))
{
throw new InvalidOperationException(System.Web.SR.GetString("SqlDataSourceView_CommandNotificationNotSupported", new object[] { this._owner.ID }));
}
dependency = new SqlCacheDependency((SqlCommand)command);
break;
}
}
break;
default:
return(enumerable);
}
DbDataAdapter adapter = this._owner.CreateDataAdapter(command);
DataSet dataSet = new DataSet();
int affectedRows = 0;
bool flag2 = false;
try
{
affectedRows = adapter.Fill(dataSet, base.Name);
flag2 = true;
SqlDataSourceStatusEventArgs args3 = new SqlDataSourceStatusEventArgs(command, affectedRows, null);
this.OnSelected(args3);
}
catch (Exception exception)
{
if (flag2)
{
bool flag3;
exception = this.BuildCustomException(exception, DataSourceOperation.Select, command, out flag3);
if (flag3)
{
throw exception;
}
throw;
}
SqlDataSourceStatusEventArgs args4 = new SqlDataSourceStatusEventArgs(command, affectedRows, exception);
this.OnSelected(args4);
if (!args4.ExceptionHandled)
{
throw;
}
}
finally
{
if (connection.State == ConnectionState.Open)
{
connection.Close();
}
}
DataTable table = (dataSet.Tables.Count > 0) ? dataSet.Tables[0] : null;
if (flag && (table != null))
{
this._owner.SaveDataToCache(0, -1, dataSet, dependency);
}
if (table == null)
{
return(enumerable);
}
IOrderedDictionary values = this.FilterParameters.GetValues(this._context, this._owner);
if (this.FilterExpression.Length > 0)
{
SqlDataSourceFilteringEventArgs args5 = new SqlDataSourceFilteringEventArgs(values);
this.OnFiltering(args5);
if (args5.Cancel)
{
return(null);
}
}
return(FilteredDataSetHelper.CreateFilteredDataView(table, sortExpression, this.FilterExpression, values));
}
protected internal override IEnumerable ExecuteSelect(DataSourceSelectArguments arguments)
{
SqlCacheDependency dependency;
if (this.SelectCommand.Length == 0)
{
return null;
}
DbConnection connection = this._owner.CreateConnection(this._owner.ConnectionString);
if (connection == null)
{
throw new InvalidOperationException(System.Web.SR.GetString("SqlDataSourceView_CouldNotCreateConnection", new object[] { this._owner.ID }));
}
DataSourceCache cache = this._owner.Cache;
bool flag = (cache != null) && cache.Enabled;
string sortExpression = arguments.SortExpression;
if (this.CanPage)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.Page);
}
if (this.CanSort)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.Sort);
}
if (this.CanRetrieveTotalRowCount)
{
arguments.AddSupportedCapabilities(DataSourceCapabilities.RetrieveTotalRowCount);
}
if (flag)
{
if (this._owner.DataSourceMode != SqlDataSourceMode.DataSet)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_CacheNotSupported", new object[] { this._owner.ID }));
}
arguments.RaiseUnsupportedCapabilitiesError(this);
DataSet set = this._owner.LoadDataFromCache(0, -1) as DataSet;
if (set != null)
{
IOrderedDictionary parameterValues = this.FilterParameters.GetValues(this._context, this._owner);
if (this.FilterExpression.Length > 0)
{
SqlDataSourceFilteringEventArgs args = new SqlDataSourceFilteringEventArgs(parameterValues);
this.OnFiltering(args);
if (args.Cancel)
{
return null;
}
}
return FilteredDataSetHelper.CreateFilteredDataView(set.Tables[0], sortExpression, this.FilterExpression, parameterValues);
}
}
DbCommand command = this._owner.CreateCommand(this.SelectCommand, connection);
this.InitializeParameters(command, this.SelectParameters, null);
command.CommandType = GetCommandType(this.SelectCommandType);
SqlDataSourceSelectingEventArgs e = new SqlDataSourceSelectingEventArgs(command, arguments);
this.OnSelecting(e);
if (e.Cancel)
{
return null;
}
string sortParameterName = this.SortParameterName;
if (sortParameterName.Length > 0)
{
if (command.CommandType != CommandType.StoredProcedure)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_SortParameterRequiresStoredProcedure", new object[] { this._owner.ID }));
}
command.Parameters.Add(this._owner.CreateParameter(this.ParameterPrefix + sortParameterName, sortExpression));
arguments.SortExpression = string.Empty;
}
arguments.RaiseUnsupportedCapabilitiesError(this);
sortExpression = arguments.SortExpression;
if (this.CancelSelectOnNullParameter)
{
int count = command.Parameters.Count;
for (int i = 0; i < count; i++)
{
DbParameter parameter = command.Parameters[i];
if (((parameter != null) && (parameter.Value == null)) && ((parameter.Direction == ParameterDirection.Input) || (parameter.Direction == ParameterDirection.InputOutput)))
{
return null;
}
}
}
this.ReplaceNullValues(command);
IEnumerable enumerable = null;
switch (this._owner.DataSourceMode)
{
case SqlDataSourceMode.DataReader:
{
if (this.FilterExpression.Length > 0)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_FilterNotSupported", new object[] { this._owner.ID }));
}
if (sortExpression.Length > 0)
{
throw new NotSupportedException(System.Web.SR.GetString("SqlDataSourceView_SortNotSupported", new object[] { this._owner.ID }));
}
bool flag4 = false;
try
{
if (connection.State != ConnectionState.Open)
{
connection.Open();
}
enumerable = command.ExecuteReader(CommandBehavior.CloseConnection);
flag4 = true;
SqlDataSourceStatusEventArgs args6 = new SqlDataSourceStatusEventArgs(command, 0, null);
this.OnSelected(args6);
}
catch (Exception exception2)
{
bool flag5;
if (!flag4)
{
SqlDataSourceStatusEventArgs args7 = new SqlDataSourceStatusEventArgs(command, 0, exception2);
this.OnSelected(args7);
if (!args7.ExceptionHandled)
{
throw;
}
return enumerable;
}
exception2 = this.BuildCustomException(exception2, DataSourceOperation.Select, command, out flag5);
if (flag5)
{
throw exception2;
}
throw;
}
return enumerable;
}
case SqlDataSourceMode.DataSet:
dependency = null;
if (flag && (cache is SqlDataSourceCache))
{
SqlDataSourceCache cache2 = (SqlDataSourceCache) cache;
if (string.Equals(cache2.SqlCacheDependency, "CommandNotification", StringComparison.OrdinalIgnoreCase))
{
if (!(command is SqlCommand))
{
throw new InvalidOperationException(System.Web.SR.GetString("SqlDataSourceView_CommandNotificationNotSupported", new object[] { this._owner.ID }));
}
dependency = new SqlCacheDependency((SqlCommand) command);
break;
}
}
break;
default:
return enumerable;
}
DbDataAdapter adapter = this._owner.CreateDataAdapter(command);
DataSet dataSet = new DataSet();
int affectedRows = 0;
bool flag2 = false;
try
{
affectedRows = adapter.Fill(dataSet, base.Name);
flag2 = true;
SqlDataSourceStatusEventArgs args3 = new SqlDataSourceStatusEventArgs(command, affectedRows, null);
this.OnSelected(args3);
}
catch (Exception exception)
{
if (flag2)
{
bool flag3;
exception = this.BuildCustomException(exception, DataSourceOperation.Select, command, out flag3);
if (flag3)
{
throw exception;
}
throw;
}
SqlDataSourceStatusEventArgs args4 = new SqlDataSourceStatusEventArgs(command, affectedRows, exception);
this.OnSelected(args4);
if (!args4.ExceptionHandled)
{
throw;
}
}
finally
{
if (connection.State == ConnectionState.Open)
{
connection.Close();
}
}
DataTable table = (dataSet.Tables.Count > 0) ? dataSet.Tables[0] : null;
if (flag && (table != null))
{
this._owner.SaveDataToCache(0, -1, dataSet, dependency);
}
if (table == null)
{
return enumerable;
}
IOrderedDictionary values = this.FilterParameters.GetValues(this._context, this._owner);
if (this.FilterExpression.Length > 0)
{
SqlDataSourceFilteringEventArgs args5 = new SqlDataSourceFilteringEventArgs(values);
this.OnFiltering(args5);
if (args5.Cancel)
{
return null;
}
}
return FilteredDataSetHelper.CreateFilteredDataView(table, sortExpression, this.FilterExpression, values);
}
protected virtual new void OnFiltering(SqlDataSourceFilteringEventArgs e)
{
}