internal override void MetaDataAvailable(SmiQueryMetaData[] metaData, bool nextEventIsRow)
{
if (this._parent == null)
{
throw SQL.UnexpectedSmiEvent(UnexpectedEventType.MetaDataAvailable);
}
this._parent.MetaDataAvailable(metaData, nextEventIsRow);
}
// Called for new resultset starting (COLMETADATA token) internal abstract void MetaDataAvailable( SmiQueryMetaData[] metaData, bool nextEventIsRow );
internal virtual SmiExtendedMetaData[] GetInternalSmiMetaData()
{
SmiExtendedMetaData[] dataArray = null;
_SqlMetaDataSet metaData = this.MetaData;
if ((metaData != null) && (0 < metaData.Length))
{
dataArray = new SmiExtendedMetaData[metaData.visibleColumns];
for (int i = 0; i < metaData.Length; i++)
{
_SqlMetaData data = metaData[i];
if (!data.isHidden)
{
SqlCollation collation = data.collation;
string xmlSchemaCollectionDatabase = null;
string xmlSchemaCollectionOwningSchema = null;
string xmlSchemaCollectionName = null;
if (SqlDbType.Xml == data.type)
{
xmlSchemaCollectionDatabase = data.xmlSchemaCollectionDatabase;
xmlSchemaCollectionOwningSchema = data.xmlSchemaCollectionOwningSchema;
xmlSchemaCollectionName = data.xmlSchemaCollectionName;
}
else if (SqlDbType.Udt == data.type)
{
SqlConnection.CheckGetExtendedUDTInfo(data, true);
xmlSchemaCollectionDatabase = data.udtDatabaseName;
xmlSchemaCollectionOwningSchema = data.udtSchemaName;
xmlSchemaCollectionName = data.udtTypeName;
}
int length = data.length;
if (length > 0x1f40)
{
length = -1;
}
else if ((SqlDbType.NChar == data.type) || (SqlDbType.NVarChar == data.type))
{
length /= ADP.CharSize;
}
dataArray[i] = new SmiQueryMetaData(data.type, (long) length, data.precision, data.scale, (collation != null) ? ((long) collation.LCID) : ((long) this._defaultLCID), (collation != null) ? collation.SqlCompareOptions : SqlCompareOptions.None, data.udtType, false, null, null, data.column, xmlSchemaCollectionDatabase, xmlSchemaCollectionOwningSchema, xmlSchemaCollectionName, data.isNullable, data.serverName, data.catalogName, data.schemaName, data.tableName, data.baseColumn, data.isKey, data.isIdentity, 0 == data.updatability, data.isExpression, data.isDifferentName, data.isHidden);
}
}
}
return dataArray;
}
internal override void MetaDataAvailable(SmiQueryMetaData[] md, bool nextEventIsRow)
{
if (Bid.AdvancedOn)
{
Bid.Trace("<sc.SqlDataReaderSmi.ReaderEventSink.MetaDataAvailable|ADV> %d#, md.Length=%d nextEventIsRow=%d.\n", this.reader.ObjectID, (md != null) ? md.Length : -1, nextEventIsRow);
if (md != null)
{
for (int i = 0; i < md.Length; i++)
{
Bid.Trace("<sc.SqlDataReaderSmi.ReaderEventSink.MetaDataAvailable|ADV> %d#, metaData[%d] is %ls%ls\n", this.reader.ObjectID, i, md[i].GetType().ToString(), md[i].TraceString());
}
}
}
this.reader.MetaDataAvailable(md, nextEventIsRow);
}
private void MetaDataAvailable(SmiQueryMetaData[] md, bool nextEventIsRow)
{
this._currentMetaData = md;
this._hasRows = nextEventIsRow;
this._fieldNameLookup = null;
this._currentPosition = PositionState.BeforeRows;
this._indexMap = new int[this._currentMetaData.Length];
int index = 0;
for (int i = 0; i < this._currentMetaData.Length; i++)
{
if (!this._currentMetaData[i].IsHidden.IsTrue)
{
this._indexMap[index] = i;
index++;
}
}
this._visibleColumnCount = index;
}
