private void BuildSchemaInfo()
{
int count = _reader.FieldCount;
string[] fieldnames = new string[count];
for (int i = 0; i < count; ++i)
{
fieldnames[i] = _reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(fieldnames);
SchemaInfo[] si = new SchemaInfo[count];
PropertyDescriptor[] props = new PropertyDescriptor[_reader.FieldCount];
for (int i = 0; i < si.Length; i++)
{
SchemaInfo s = default;
s.name = _reader.GetName(i);
s.type = _reader.GetFieldType(i);
s.typeName = _reader.GetDataTypeName(i);
props[i] = new DbColumnDescriptor(i, fieldnames[i], s.type);
si[i] = s;
}
_schemaInfo = si;
_fieldNameLookup = new FieldNameLookup(_reader, -1);
_descriptors = new PropertyDescriptorCollection(props);
}
// copy all runtime data information
internal DataRecordInternal(object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup)
{
Debug.Assert(null != values, "invalid attempt to instantiate DataRecordInternal with null value[]");
_values = values;
_propertyDescriptors = descriptors;
_fieldNameLookup = fieldNameLookup;
}
private void BuildSchemaInfo()
{
int fieldCount = this._reader.FieldCount;
string[] columnNameArray = new string[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
columnNameArray[i] = this._reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(columnNameArray);
SchemaInfo[] infoArray = new SchemaInfo[fieldCount];
PropertyDescriptor[] properties = new PropertyDescriptor[this._reader.FieldCount];
for (int j = 0; j < infoArray.Length; j++)
{
SchemaInfo info = new SchemaInfo {
name = this._reader.GetName(j),
type = this._reader.GetFieldType(j),
typeName = this._reader.GetDataTypeName(j)
};
properties[j] = new DbColumnDescriptor(j, columnNameArray[j], info.type);
infoArray[j] = info;
}
this._schemaInfo = infoArray;
this._fieldNameLookup = new FieldNameLookup(this._reader, -1);
this._descriptors = new PropertyDescriptorCollection(properties);
}
internal DataRecordInternal(SchemaInfo[] schemaInfo, object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup)
{
this._schemaInfo = schemaInfo;
this._values = values;
this._propertyDescriptors = descriptors;
this._fieldNameLookup = fieldNameLookup;
}
// copy all runtime data information
internal DataRecordInternal(SchemaInfo[] schemaInfo, object[] values, FieldNameLookup fieldNameLookup)
{
Debug.Assert(null != schemaInfo, "invalid attempt to instantiate DataRecordInternal with null schema information");
Debug.Assert(null != values, "invalid attempt to instantiate DataRecordInternal with null value[]");
_schemaInfo = schemaInfo;
_values = values;
_fieldNameLookup = fieldNameLookup;
}
private FieldNameLookup _fieldNameLookup; // MDAC 69015
// copy all runtime data information
internal DbDataRecord(SchemaInfo[] schemaInfo, object[] values, PropertyDescriptorCollection descriptors, FieldNameLookup fieldNameLookup)
{
Debug.Assert(null != schemaInfo, "invalid attempt to instantiate DbDataRecord with null schema information");
Debug.Assert(null != values, "invalid attempt to instantiate DbDataRecord with null value[]");
_schemaInfo = schemaInfo;
_values = values;
_propertyDescriptors = descriptors;
_fieldNameLookup = fieldNameLookup;
}
private void BuildSchemaInfo()
{
int count = _reader.FieldCount;
string[] fieldnames = new string[count];
for (int i = 0; i < count; ++i)
{
fieldnames[i] = _reader.GetName(i);
}
ADP.BuildSchemaTableInfoTableNames(fieldnames);
SchemaInfo[] si = new SchemaInfo[count];
for (int i = 0; i < si.Length; i++)
{
SchemaInfo s = new SchemaInfo();
s.name = _reader.GetName(i);
s.type = _reader.GetFieldType(i);
s.typeName = _reader.GetDataTypeName(i);
si[i] = s;
}
_schemaInfo = si;
_fieldNameLookup = new FieldNameLookup(_reader, -1);
}
/// <summary>
///
/// </summary>
public override int GetOrdinal(string name)
{
if (null == _fieldNameLookup)
{
_fieldNameLookup = new FieldNameLookup(this, -1);
}
return _fieldNameLookup.GetOrdinal(name);
}
