internal void DumpToSchemaTable(System.Data.Common.UnsafeNativeMethods.IRowset rowset)
{
List<System.Data.OleDb.MetaData> list = new List<System.Data.OleDb.MetaData>();
object propertyValue = null;
using (OleDbDataReader reader = new OleDbDataReader(this._connection, this._command, -2147483648, CommandBehavior.Default))
{
reader.InitializeIRowset(rowset, ChapterHandle.DB_NULL_HCHAPTER, IntPtr.Zero);
reader.BuildSchemaTableInfo(rowset, true, false);
propertyValue = this.GetPropertyValue(0x102);
if (reader.FieldCount == 0)
{
return;
}
FieldNameLookup lookup = new FieldNameLookup(reader, -1);
reader._fieldNameLookup = lookup;
System.Data.OleDb.MetaData data20 = reader.FindMetaData("DBCOLUMN_IDNAME");
System.Data.OleDb.MetaData data19 = reader.FindMetaData("DBCOLUMN_GUID");
System.Data.OleDb.MetaData data18 = reader.FindMetaData("DBCOLUMN_PROPID");
System.Data.OleDb.MetaData data17 = reader.FindMetaData("DBCOLUMN_NAME");
System.Data.OleDb.MetaData data12 = reader.FindMetaData("DBCOLUMN_NUMBER");
System.Data.OleDb.MetaData data16 = reader.FindMetaData("DBCOLUMN_TYPE");
System.Data.OleDb.MetaData data11 = reader.FindMetaData("DBCOLUMN_COLUMNSIZE");
System.Data.OleDb.MetaData data15 = reader.FindMetaData("DBCOLUMN_PRECISION");
System.Data.OleDb.MetaData data14 = reader.FindMetaData("DBCOLUMN_SCALE");
System.Data.OleDb.MetaData data13 = reader.FindMetaData("DBCOLUMN_FLAGS");
System.Data.OleDb.MetaData data10 = reader.FindMetaData("DBCOLUMN_BASESCHEMANAME");
System.Data.OleDb.MetaData data9 = reader.FindMetaData("DBCOLUMN_BASECATALOGNAME");
System.Data.OleDb.MetaData data8 = reader.FindMetaData("DBCOLUMN_BASETABLENAME");
System.Data.OleDb.MetaData data7 = reader.FindMetaData("DBCOLUMN_BASECOLUMNNAME");
System.Data.OleDb.MetaData data6 = reader.FindMetaData("DBCOLUMN_ISAUTOINCREMENT");
System.Data.OleDb.MetaData data5 = reader.FindMetaData("DBCOLUMN_ISUNIQUE");
System.Data.OleDb.MetaData data4 = reader.FindMetaData("DBCOLUMN_KEYCOLUMN");
reader.CreateAccessors(false);
while (reader.ReadRowset())
{
reader.GetRowDataFromHandle();
System.Data.OleDb.MetaData item = new System.Data.OleDb.MetaData();
ColumnBinding columnBinding = data20.columnBinding;
if (!columnBinding.IsValueNull())
{
item.idname = (string) columnBinding.Value();
item.kind = 2;
}
columnBinding = data19.columnBinding;
if (!columnBinding.IsValueNull())
{
item.guid = columnBinding.Value_GUID();
item.kind = (2 == item.kind) ? 0 : 6;
}
columnBinding = data18.columnBinding;
if (!columnBinding.IsValueNull())
{
item.propid = new IntPtr((long) columnBinding.Value_UI4());
item.kind = (6 == item.kind) ? 1 : 5;
}
columnBinding = data17.columnBinding;
if (!columnBinding.IsValueNull())
{
item.columnName = (string) columnBinding.Value();
}
else
{
item.columnName = "";
}
if (4 == ADP.PtrSize)
{
item.ordinal = (IntPtr) data12.columnBinding.Value_UI4();
}
else
{
item.ordinal = (IntPtr) data12.columnBinding.Value_UI8();
}
short dbType = (short) data16.columnBinding.Value_UI2();
if (4 == ADP.PtrSize)
{
item.size = (int) data11.columnBinding.Value_UI4();
}
else
{
item.size = ADP.IntPtrToInt32((IntPtr) data11.columnBinding.Value_UI8());
}
columnBinding = data15.columnBinding;
if (!columnBinding.IsValueNull())
{
item.precision = (byte) columnBinding.Value_UI2();
}
columnBinding = data14.columnBinding;
if (!columnBinding.IsValueNull())
{
item.scale = (byte) columnBinding.Value_I2();
}
item.flags = (int) data13.columnBinding.Value_UI4();
bool isLong = IsLong(item.flags);
bool isFixed = IsFixed(item.flags);
NativeDBType type = NativeDBType.FromDBType(dbType, isLong, isFixed);
item.type = type;
if (data6 != null)
{
columnBinding = data6.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isAutoIncrement = columnBinding.Value_BOOL();
}
}
if (data5 != null)
{
columnBinding = data5.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isUnique = columnBinding.Value_BOOL();
}
}
if (data4 != null)
{
columnBinding = data4.columnBinding;
if (!columnBinding.IsValueNull())
{
item.isKeyColumn = columnBinding.Value_BOOL();
}
}
if (data10 != null)
{
columnBinding = data10.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseSchemaName = columnBinding.ValueString();
}
}
if (data9 != null)
{
columnBinding = data9.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseCatalogName = columnBinding.ValueString();
}
}
if (data8 != null)
{
columnBinding = data8.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseTableName = columnBinding.ValueString();
}
}
if (data7 != null)
{
columnBinding = data7.columnBinding;
if (!columnBinding.IsValueNull())
{
item.baseColumnName = columnBinding.ValueString();
}
}
list.Add(item);
}
}
int count = list.Count;
if (propertyValue is int)
{
count -= (int) propertyValue;
}
bool flag = false;
for (int i = list.Count - 1; count <= i; i--)
{
System.Data.OleDb.MetaData data3 = list[i];
data3.isHidden = true;
if (flag)
{
data3.isKeyColumn = false;
}
else if (data3.guid.Equals(ODB.DBCOL_SPECIALCOL))
{
data3.isKeyColumn = false;
flag = true;
for (int k = list.Count - 1; i < k; k--)
{
list[k].isKeyColumn = false;
}
}
}
for (int j = count - 1; 0 <= j; j--)
{
System.Data.OleDb.MetaData data2 = list[j];
if (flag)
{
data2.isKeyColumn = false;
}
if (data2.guid.Equals(ODB.DBCOL_SPECIALCOL))
{
data2.isHidden = true;
count--;
}
else if (0 >= ((int) data2.ordinal))
{
data2.isHidden = true;
count--;
}
else if (DoColumnDropFilter(data2.flags))
{
data2.isHidden = true;
count--;
}
}
list.Sort();
this._visibleFieldCount = count;
this._metadata = list.ToArray();
}
private void BuildSchemaTableInfoTable(int columnCount, IntPtr columnInfos, bool filterITypeInfo, bool filterChapters)
{
int index = 0;
System.Data.OleDb.MetaData[] dataArray = new System.Data.OleDb.MetaData[columnCount];
tagDBCOLUMNINFO structure = new tagDBCOLUMNINFO();
int num4 = 0;
for (int i = 0; num4 < columnCount; i += ODB.SizeOf_tagDBCOLUMNINFO)
{
Marshal.PtrToStructure(ADP.IntPtrOffset(columnInfos, i), structure);
if ((0 >= ((int) structure.iOrdinal)) || DoColumnDropFilter(structure.dwFlags))
{
goto Label_01EC;
}
if (structure.pwszName == null)
{
structure.pwszName = "";
}
if ((filterITypeInfo && ("DBCOLUMN_TYPEINFO" == structure.pwszName)) || (filterChapters && (0x88 == structure.wType)))
{
goto Label_01EC;
}
bool isLong = IsLong(structure.dwFlags);
bool isFixed = IsFixed(structure.dwFlags);
NativeDBType type = NativeDBType.FromDBType(structure.wType, isLong, isFixed);
System.Data.OleDb.MetaData data = new System.Data.OleDb.MetaData {
columnName = structure.pwszName,
type = type,
ordinal = structure.iOrdinal,
size = (int) structure.ulColumnSize,
flags = structure.dwFlags,
precision = structure.bPrecision,
scale = structure.bScale,
kind = structure.columnid.eKind
};
switch (structure.columnid.eKind)
{
case 0:
case 1:
case 6:
data.guid = structure.columnid.uGuid;
break;
default:
data.guid = Guid.Empty;
break;
}
switch (structure.columnid.eKind)
{
case 0:
case 2:
if (!(ADP.PtrZero != structure.columnid.ulPropid))
{
break;
}
data.idname = Marshal.PtrToStringUni(structure.columnid.ulPropid);
goto Label_01E3;
case 1:
case 5:
data.propid = structure.columnid.ulPropid;
goto Label_01E3;
default:
data.propid = ADP.PtrZero;
goto Label_01E3;
}
data.idname = null;
Label_01E3:
dataArray[index] = data;
index++;
Label_01EC:
num4++;
}
if (index < columnCount)
{
System.Data.OleDb.MetaData[] dataArray2 = new System.Data.OleDb.MetaData[index];
for (int j = 0; j < index; j++)
{
dataArray2[j] = dataArray[j];
}
dataArray = dataArray2;
}
this._visibleFieldCount = index;
this._metadata = dataArray;
}
