/// <summary>
/// Obsolete - only backward compatibility
/// </summary>
internal static void WriteValue(BinaryWriter writer, DataTable dt, Encoding encoding)
{
if (dt == null)
{
WriteNullValue(writer);
return;
}
// column count
NumericSerializers.WriteUIntNullableMemberCount(writer, (uint)dt.Columns.Count);
// table name
WriteValue(writer, dt.TableName, encoding);
// columns
foreach (DataColumn col in dt.Columns)
{
WriteValue(writer, col.Caption, encoding);
WriteValue(writer, col.ColumnName, encoding);
var dataType = col.DataType?.ToString();
if (dataType != null && dataType.StartsWith("System."))
{
dataType = "0." + dataType.Remove(0, "System.".Length);
}
WriteValue(writer, dataType, encoding);
}
NumericSerializers.WriteVarInt(writer, dt.Rows.Count);
foreach (DataRow row in dt.Rows)
{
for (var colIndex = 0; colIndex < row.ItemArray.Length; colIndex++)
{
var item = row.ItemArray[colIndex];
var itemType = dt.Columns[colIndex].DataType;
var basicTypeInfo = BoisTypeCache.GetBasicType(itemType);
if (basicTypeInfo.KnownType == EnBasicKnownType.Unknown)
{
throw new Exception($"Serialization of DataTable with item type of '{itemType}' is not supported.");
}
var itemToWrite = item;
if (itemType == typeof(string))
{
itemToWrite =
item == DBNull.Value
? null
: item.ToString();
}
else if (item == DBNull.Value)
{
itemToWrite = null;
}
// write the object
WriteRootBasicType(writer, itemToWrite, itemType, basicTypeInfo, encoding);
}
}
}
internal static void WriteRootBasicTypedArray(BinaryWriter writer, Array array, BoisBasicTypeInfo typeInfo, Encoding encoding)
{
if (array == null)
{
PrimitiveWriter.WriteNullValue(writer);
return;
}
var arrayItemType = typeInfo.BareType;
var arrayItemTypeType = BoisTypeCache.GetBasicType(typeInfo.BareType);
// Int32
NumericSerializers.WriteUIntNullableMemberCount(writer, (uint)array.Length);
for (int i = 0; i < array.Length; i++)
{
WriteRootBasicType(writer, array.GetValue(i), arrayItemType, arrayItemTypeType, encoding);
}
}
