public DataColumnMappingCollectionTest()
{
_cols = new DataColumnMapping[5];
_cols[0] = new DataColumnMapping("sourceName", "dataSetName");
_cols[1] = new DataColumnMapping("sourceID", "dataSetID");
_cols[2] = new DataColumnMapping("sourceAddress", "dataSetAddress");
_cols[3] = new DataColumnMapping("sourcePhone", "dataSetPhone");
_cols[4] = new DataColumnMapping("sourcePIN", "dataSetPIN");
_columnMapCollection = new DataColumnMappingCollection();
}
public void GetDataColumn_DataColumnMappingCollection_String_Type_DataTable_MissingMappingAction_MissingSchemaAction()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(new DataColumnMapping("sourcePIN", "dataSetPIN"));
DataColumn dataColumn = DataColumnMappingCollection.GetDataColumn(dataColumnMappingCollection, "sourcePIN", null, new DataTable(), MissingMappingAction.Ignore, MissingSchemaAction.Ignore);
Assert.Null(dataColumn);
}
public void GetReady()
{
cols = new DataColumnMapping[5];
cols[0] = new DataColumnMapping("sourceName", "dataSetName");
cols[1] = new DataColumnMapping("sourceID", "dataSetID");
cols[2] = new DataColumnMapping("sourceAddress", "dataSetAddress");
cols[3] = new DataColumnMapping("sourcePhone", "dataSetPhone");
cols[4] = new DataColumnMapping("sourcePIN", "dataSetPIN");
columnMapCollection = new DataColumnMappingCollection();
}
public void Insert_Int_Object_Success()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Equal(0, dataColumnMappingCollection.Count);
dataColumnMappingCollection.Insert(0, (object)new DataColumnMapping("sourcePIN", "dataSetPIN"));
Assert.Equal(1, dataColumnMappingCollection.Count);
Assert.Equal("dataSetPIN", dataColumnMappingCollection["sourcePIN"].DataSetColumn);
}
public void Indexer_Int_SetAndGetOK()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(new DataColumnMapping("sourcePIN", "dataSetPIN"));
dataColumnMappingCollection[0] = new DataColumnMapping("sourcePIN", "dataSetPINSet");
DataColumnMapping dataColumnMapping = dataColumnMappingCollection[0];
Assert.Equal("dataSetPINSet", dataColumnMapping.DataSetColumn);
}
public void This_String_SetAndGetOK()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(new DataColumnMapping("sourcePIN", "dataSetPIN"));
dataColumnMappingCollection["sourcePIN"] = new DataColumnMapping("sourcePIN", "dataSetPINSet");
DataColumnMapping dataColumnMapping = dataColumnMappingCollection["sourcePIN"];
Assert.Equal("dataSetPINSet", dataColumnMapping.DataSetColumn);
}
// <Snippet1>
public void FindDataColumnMapping()
{
// ...
// create mappings and mapping
// ...
if (mappings.Contains("Description"))
{
mapping = DataColumnMappingCollection.GetColumnMappingBySchemaAction
(mappings, "Description", MissingMappingAction.Ignore);
}
}
public void GetEnumerator_Success()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(new DataColumnMapping("a", "b"));
IEnumerator enumerator = dataColumnMappingCollection.GetEnumerator();
Assert.True(enumerator.MoveNext());
Assert.Equal("b", ((DataColumnMapping)enumerator.Current).DataSetColumn);
Assert.False(enumerator.MoveNext());
}
public void Remove_Object_Success()
{
DataColumnMapping dataColumnMapping = new DataColumnMapping("sourcePIN", "dataSetPIN");
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(dataColumnMapping);
Assert.Equal(1, dataColumnMappingCollection.Count);
dataColumnMappingCollection.Remove((object)dataColumnMapping);
Assert.Equal(0, dataColumnMappingCollection.Count);
}
public void Remove_DataColumnMapping_Success()
{
DataColumnMapping dataColumnMapping = new DataColumnMapping("source", "dataSet");
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection
{
dataColumnMapping
};
Assert.Equal(1, dataColumnMappingCollection.Count);
dataColumnMappingCollection.Remove(dataColumnMapping);
Assert.Equal(0, dataColumnMappingCollection.Count);
}
public void CopyTo_Array_Int_Success()
{
Array array = new DataColumnMapping[1];
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
dataColumnMappingCollection.Add(new DataColumnMapping("sourcePIN", "dataSetPIN"));
IEnumerator enumerator = array.GetEnumerator();
enumerator.MoveNext();
Assert.Null(enumerator.Current);
dataColumnMappingCollection.CopyTo(array, 0);
enumerator = array.GetEnumerator();
enumerator.MoveNext();
Assert.Equal("dataSetPIN", ((DataColumnMapping)enumerator.Current).DataSetColumn);
}
// <Snippet1>
public void CreateColumnMappings()
{
DataColumnMappingCollection mappings =
new DataColumnMappingCollection();
mappings.Add("Category Name", "DataCategory");
mappings.Add("Description", "DataDescription");
mappings.Add("Picture", "DataPicture");
string message = "ColumnMappings:\n";
for (int i = 0; i < mappings.Count; i++)
{
message += i.ToString() + " "
+ mappings[i].ToString() + "\n";
}
Console.WriteLine(message);
}
private void OnRowUpdating(Object sender, NpgsqlRowUpdatingEventArgs value)
{
switch (value.StatementType)
{
case StatementType.Insert:
value.Command = GetInsertCommand(value.Row, false);
break;
case StatementType.Update:
value.Command = GetUpdateCommand(value.Row, false);
break;
case StatementType.Delete:
value.Command = GetDeleteCommand(value.Row, false);
break;
}
DataColumnMappingCollection columnMappings = value.TableMapping.ColumnMappings;
foreach (IDataParameter parameter in value.Command.Parameters)
{
string dsColumnName = parameter.SourceColumn;
if (columnMappings.Contains(parameter.SourceColumn))
{
DataColumnMapping mapping = columnMappings[parameter.SourceColumn];
if (mapping != null)
{
dsColumnName = mapping.DataSetColumn;
}
}
DataRowVersion rowVersion = DataRowVersion.Default;
if (value.StatementType == StatementType.Update)
{
rowVersion = parameter.SourceVersion;
}
if (value.StatementType == StatementType.Delete)
{
rowVersion = DataRowVersion.Original;
}
parameter.Value = value.Row [dsColumnName, rowVersion];
}
}
static void Exmpl10()
{
string strSQL = "SELECT intEquipmentID, intGarageRoom, strSerialNo FROM newEquipment";
SqlConnection conn = new SqlConnection(connectionString);
SqlDataAdapter da = new SqlDataAdapter(strSQL, conn);
//Указывает TM
da.TableMappings.Add("Table", "newEquipment");
DataColumnMappingCollection cm = da.TableMappings[0].ColumnMappings;
cm.Add("EquipmentID", "intEquipmentID");
cm.Add("GarageRoom", "intGarageRoom");
cm.Add("SerialNo", "strSerialNo");
DataTable tbl = new DataTable("newEquipment");
da.Fill(tbl);
//Можно также воспользоваться методом AddRange объекта DataTableMappingCoUection
//или DataColumnfrlappingCollection и добавить в набор группу элементов за один вызов
//DataColumnMappingCollection cm2 = da.TableMappings[0].ColumnMappings;
//cm2.AddRange(new DataColumnMapping[]
//{
// new DataColumnMapping("intEquipmentID", "intEquipmentID"),
// new DataColumnMapping("intGarageRoom", "intGarageRoom"),
// new DataColumnMapping("strSerialNo", "strSerialNo")
//});
/*
* А что, если выполняемый объектом DataAdapter запрос содержит информацию об одной из таблиц объекта DataSet, отсутствующую в наборе TableMappings?
* По умолчанию DataAdapter предполагает, что вам требуется получить эту информацию и записать ее в таблицу
*/
SqlDataAdapter da2 = new SqlDataAdapter(strSQL, conn);
DataSet ds = new DataSet();
da2.Fill(ds);
Console.WriteLine(ds.Tables["Table"].Rows[0]["intEquipmentID"].ToString());
}
public void GetColumnMappingBySchemaAction()
{
_columnMapCollection.AddRange(_cols);
bool eq;
DataColumnMapping col1;
col1 = DataColumnMappingCollection.GetColumnMappingBySchemaAction(_columnMapCollection, "sourceName", MissingMappingAction.Passthrough);
eq = (col1.DataSetColumn.Equals("dataSetName") && col1.SourceColumn.Equals("sourceName"));
Assert.Equal(true, eq);
col1 = DataColumnMappingCollection.GetColumnMappingBySchemaAction(_columnMapCollection, "sourceID", MissingMappingAction.Passthrough);
eq = (col1.DataSetColumn.Equals("dataSetID") && col1.SourceColumn.Equals("sourceID"));
Assert.Equal(true, eq);
col1 = DataColumnMappingCollection.GetColumnMappingBySchemaAction(_columnMapCollection, "sourceData", MissingMappingAction.Passthrough);
eq = (col1.DataSetColumn.Equals("sourceData") && col1.SourceColumn.Equals("sourceData"));
Assert.Equal(true, eq);
eq = _columnMapCollection.Contains(col1);
Assert.Equal(false, eq);
col1 = DataColumnMappingCollection.GetColumnMappingBySchemaAction(_columnMapCollection, "sourceData", MissingMappingAction.Ignore);
Assert.Equal(null, col1);
}
protected override int Fill(DataTable[] dataTables, IDataReader dataReader, int startRecord, int maxRecords)
{
ExTraceGlobals.IntegrationTracer.Information <int, string>((long)this.GetHashCode(), "-->MonadDataAdapter.Fill({0} (first of {1}))", dataTables.Length, dataTables[0].TableName);
ExTraceGlobals.IntegrationTracer.Information <string>((long)this.GetHashCode(), "\tSelectCommand={0}", this.SelectCommand.CommandText);
MonadDataReader monadDataReader = dataReader as MonadDataReader;
if (dataTables == null || dataTables[0] == null)
{
throw new ArgumentNullException("dataTables");
}
DataTable dataTable = dataTables[0];
if (this.enforceDataSetSchema)
{
DataColumnMappingCollection mappings = null;
if (base.TableMappings.Contains(dataTable.TableName))
{
mappings = base.TableMappings[dataTable.TableName].ColumnMappings;
}
monadDataReader.EnforceSchema(dataTable.Columns, mappings);
}
if (monadDataReader.PositionInfo != null)
{
dataTable.ExtendedProperties["Position"] = monadDataReader.PositionInfo.PageOffset;
dataTable.ExtendedProperties["TotalCount"] = monadDataReader.PositionInfo.TotalCount;
}
int num = base.Fill(dataTables, dataReader, startRecord, maxRecords);
if (monadDataReader.PositionInfo != null)
{
dataTable.ExtendedProperties["BookmarkPrevious"] = monadDataReader.FirstResult;
dataTable.ExtendedProperties["BookmarkNext"] = monadDataReader.LastResult;
}
ExTraceGlobals.IntegrationTracer.Information <int>((long)this.GetHashCode(), "<--MonadDataAdapter.Fill(), {0}", num);
return(num);
}
public void GetDataColumn_DataColumnMappingCollection_String_Type_DataTable_MissingMappingAction_MissingSchemaAction_MissingMappingActionErrorThrowsException()
{
Assert.Throws <InvalidOperationException>(() => DataColumnMappingCollection.GetDataColumn((DataColumnMappingCollection)null, "not null", typeof(string), new DataTable(), MissingMappingAction.Error, new MissingSchemaAction()));
}
public void AddException1()
{
DataColumnMappingCollection c = new DataColumnMappingCollection();
columnMapCollection.Add((Object)c);
}
/// <summary>
/// Creates or Modifies the schema of the given DataTable based on the schema of
/// the reader and the arguments passed.
/// </summary>
internal static int[] BuildSchema(IDataReader reader, DataTable table,
SchemaType schemaType,
MissingSchemaAction missingSchAction,
MissingMappingAction missingMapAction,
DataTableMappingCollection dtMapping
)
{
int readerIndex = 0;
// FIXME : this fails if query has fewer columns than a table
int[] mapping = new int[table.Columns.Count]; // mapping the reader indexes to the datatable indexes
for (int i = 0; i < mapping.Length; i++)
{
mapping[i] = -1;
}
ArrayList primaryKey = new ArrayList();
ArrayList sourceColumns = new ArrayList();
bool createPrimaryKey = true;
DataTable schemaTable = reader.GetSchemaTable();
DataColumn ColumnNameCol = schemaTable.Columns["ColumnName"];
DataColumn DataTypeCol = schemaTable.Columns["DataType"];
DataColumn IsAutoIncrementCol = schemaTable.Columns["IsAutoIncrement"];
DataColumn AllowDBNullCol = schemaTable.Columns["AllowDBNull"];
DataColumn IsReadOnlyCol = schemaTable.Columns["IsReadOnly"];
DataColumn IsKeyCol = schemaTable.Columns["IsKey"];
DataColumn IsUniqueCol = schemaTable.Columns["IsUnique"];
DataColumn ColumnSizeCol = schemaTable.Columns["ColumnSize"];
foreach (DataRow schemaRow in schemaTable.Rows)
{
// generate a unique column name in the source table.
string sourceColumnName;
string realSourceColumnName;
if (ColumnNameCol == null || schemaRow.IsNull(ColumnNameCol) ||
(string)schemaRow [ColumnNameCol] == String.Empty)
{
sourceColumnName = DefaultSourceColumnName;
realSourceColumnName = DefaultSourceColumnName + "1";
}
else
{
sourceColumnName = (string)schemaRow [ColumnNameCol];
realSourceColumnName = sourceColumnName;
}
for (int i = 1; sourceColumns.Contains(realSourceColumnName); i += 1)
{
realSourceColumnName = String.Format("{0}{1}", sourceColumnName, i);
}
sourceColumns.Add(realSourceColumnName);
// generate DataSetColumnName from DataTableMapping, if any
DataTableMapping tableMapping = null;
//FIXME : The sourcetable name shud get passed as a parameter..
int index = dtMapping.IndexOfDataSetTable(table.TableName);
string srcTable = (index != -1 ? dtMapping[index].SourceTable : table.TableName);
tableMapping = DataTableMappingCollection.GetTableMappingBySchemaAction(dtMapping, ADP.IsEmpty(srcTable) ? " " : srcTable, table.TableName, missingMapAction);
if (tableMapping != null)
{
table.TableName = tableMapping.DataSetTable;
// check to see if the column mapping exists
DataColumnMapping columnMapping = DataColumnMappingCollection.GetColumnMappingBySchemaAction(tableMapping.ColumnMappings, realSourceColumnName, missingMapAction);
if (columnMapping != null)
{
Type columnType = schemaRow[DataTypeCol] as Type;
DataColumn col = columnType != null?columnMapping.GetDataColumnBySchemaAction(
table,
columnType,
missingSchAction) : null;
if (col != null)
{
// if the column is not in the table - add it.
if (table.Columns.IndexOf(col) == -1)
{
if (missingSchAction == MissingSchemaAction.Add ||
missingSchAction == MissingSchemaAction.AddWithKey)
{
table.Columns.Add(col);
}
int[] tmp = new int[mapping.Length + 1];
Array.Copy(mapping, 0, tmp, 0, col.Ordinal);
Array.Copy(mapping, col.Ordinal, tmp, col.Ordinal + 1, mapping.Length - col.Ordinal);
mapping = tmp;
}
if (missingSchAction == MissingSchemaAction.AddWithKey)
{
object value = (AllowDBNullCol != null) ? schemaRow[AllowDBNullCol] : null;
bool allowDBNull = value is bool?(bool)value : true;
value = (IsKeyCol != null) ? schemaRow[IsKeyCol] : null;
bool isKey = value is bool?(bool)value : false;
value = (IsAutoIncrementCol != null) ? schemaRow[IsAutoIncrementCol] : null;
bool isAutoIncrement = value is bool?(bool)value : false;
value = (IsReadOnlyCol != null) ? schemaRow[IsReadOnlyCol] : null;
bool isReadOnly = value is bool?(bool)value : false;
value = (IsUniqueCol != null) ? schemaRow[IsUniqueCol] : null;
bool isUnique = value is bool?(bool)value : false;
col.AllowDBNull = allowDBNull;
// fill woth key info
if (isAutoIncrement && CanAutoIncrement(columnType))
{
col.AutoIncrement = true;
if (!allowDBNull)
{
col.AllowDBNull = false;
}
}
if (columnType == DbTypes.TypeOfString)
{
col.MaxLength = (ColumnSizeCol != null) ? (int)schemaRow[ColumnSizeCol] : 0;
}
if (isReadOnly)
{
col.ReadOnly = true;
}
if (!allowDBNull && (!isReadOnly || isKey))
{
col.AllowDBNull = false;
}
if (isUnique && !isKey && !columnType.IsArray)
{
col.Unique = true;
if (!allowDBNull)
{
col.AllowDBNull = false;
}
}
// This might not be set by all DataProviders
bool isHidden = false;
if (schemaTable.Columns.Contains("IsHidden"))
{
value = schemaRow["IsHidden"];
isHidden = ((value is bool) ? (bool)value : false);
}
if (isKey && !isHidden)
{
primaryKey.Add(col);
if (allowDBNull)
{
createPrimaryKey = false;
}
}
}
// add the ordinal of the column as a key and the index of the column in the datareader as a value.
mapping[col.Ordinal] = readerIndex++;
}
}
}
}
if (primaryKey.Count > 0)
{
DataColumn[] colKey = (DataColumn[])(primaryKey.ToArray(typeof(DataColumn)));
if (createPrimaryKey)
{
table.PrimaryKey = colKey;
}
else
{
UniqueConstraint uConstraint = new UniqueConstraint(colKey);
for (int i = 0; i < table.Constraints.Count; i++)
{
if (table.Constraints[i].Equals(uConstraint))
{
uConstraint = null;
break;
}
}
if (uConstraint != null)
{
table.Constraints.Add(uConstraint);
}
}
}
return(mapping);
}
public void Remove_Object_PassingNullThrowsException()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
AssertExtensions.Throws <ArgumentNullException>("value", () => dataColumnMappingCollection.Remove((object)null));
}
public void GetByDataSetColumn_String_InvalidArguments()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Throws <IndexOutOfRangeException>(() => dataColumnMappingCollection.GetByDataSetColumn((string)null));
}
public void IndexOf_String_IsNull()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Equal(-1, dataColumnMappingCollection.IndexOf((string)null));
}
public void IndexOf_Object_IsNull()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Equal(-1, dataColumnMappingCollection.IndexOf((object)null));
}
public void Insert_Int_DataColumnMapping_InvalidArguments()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Throws <ArgumentNullException>(() => dataColumnMappingCollection.Insert(123, (DataColumnMapping)null));
}
public void Remove_DataColumnMapping_InvalidArguments()
{
DataColumnMappingCollection dataColumnMappingCollection = new DataColumnMappingCollection();
Assert.Throws <ArgumentNullException>(() => dataColumnMappingCollection.Remove((DataColumnMapping)null));
}
public void GetColumnMappingBySchemaAction_DataColumnMappingCollection_String_MissingMappingAction_MissingMappingActionNotFoundThrowsException()
{
AssertExtensions.Throws <ArgumentOutOfRangeException>("MissingMappingAction", () => DataColumnMappingCollection.GetColumnMappingBySchemaAction((DataColumnMappingCollection)null, "not null", new MissingMappingAction()));
}
public void GetColumnMappingBySchemaAction_DataColumnMappingCollection_String_MissingMappingAction_InvalidArguments()
{
AssertExtensions.Throws <ArgumentException>("sourceColumn", () => DataColumnMappingCollection.GetColumnMappingBySchemaAction((DataColumnMappingCollection)null, null, new MissingMappingAction()));
}
public void GetDataColumn_DataColumnMappingCollection_String_Type_DataTable_MissingMappingAction_MissingSchemaAction_MissingMappingActionNotFoundThrowsException()
{
AssertExtensions.Throws <ArgumentOutOfRangeException>("MissingMappingAction", () => DataColumnMappingCollection.GetDataColumn((DataColumnMappingCollection)null, "not null", typeof(string), new DataTable(), new MissingMappingAction(), new MissingSchemaAction()));
}
public void GetDataColumn_DataColumnMappingCollection_String_Type_DataTable_MissingMappingAction_MissingSchemaAction_InvalidArguments()
{
AssertExtensions.Throws <ArgumentException>("sourceColumn", () => DataColumnMappingCollection.GetDataColumn((DataColumnMappingCollection)null, null, typeof(string), new DataTable(), new MissingMappingAction(), new MissingSchemaAction()));
}
public void GetDataColumn_DataColumnMappingCollection_String_Type_DataTable_MissingMappingAction_MissingSchemaAction_MissingMappingActionIgnoreReturnsNull()
{
Assert.Null(DataColumnMappingCollection.GetDataColumn((DataColumnMappingCollection)null, "not null", typeof(string), new DataTable(), MissingMappingAction.Ignore, new MissingSchemaAction()));
}
