/// <summary>
/// Reads the JSON representation of the object.
/// </summary>
/// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
/// <param name="objectType">Type of the object.</param>
/// <param name="existingValue">The existing value of object being read.</param>
/// <param name="serializer">The calling serializer.</param>
/// <returns>The object value.</returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
// handle typed datasets
DataSet ds = (objectType == typeof(DataSet))
? new DataSet()
: (DataSet)Activator.CreateInstance(objectType);
DataTableConverter converter = new DataTableConverter();
reader.Read();
while (reader.TokenType == JsonToken.PropertyName)
{
DataTable dt = ds.Tables[(string)reader.Value];
bool exists = (dt != null);
dt = (DataTable)converter.ReadJson(reader, typeof(DataTable), dt, serializer);
if (!exists)
ds.Tables.Add(dt);
reader.Read();
}
return ds;
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
DataSet dataSet = new DataSet();
DataTableConverter dataTableConverter = new DataTableConverter();
reader.Read();
while (reader.TokenType == JsonToken.PropertyName)
{
DataTable table = (DataTable) dataTableConverter.ReadJson(reader, typeof (DataTable), (object) null, serializer);
dataSet.Tables.Add(table);
reader.Read();
}
return (object) dataSet;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
DataSet dataSet = (DataSet) value;
DefaultContractResolver contractResolver = serializer.ContractResolver as DefaultContractResolver;
DataTableConverter dataTableConverter = new DataTableConverter();
writer.WriteStartObject();
foreach (DataTable dataTable in (InternalDataCollectionBase) dataSet.Tables)
{
writer.WritePropertyName(contractResolver != null ? contractResolver.GetResolvedPropertyName(dataTable.TableName) : dataTable.TableName);
dataTableConverter.WriteJson(writer, (object) dataTable, serializer);
}
writer.WriteEndObject();
}
/// <summary>
/// Reads the JSON representation of the object.
/// </summary>
/// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
/// <param name="objectType">Type of the object.</param>
/// <param name="existingValue">The existing value of object being read.</param>
/// <param name="serializer">The calling serializer.</param>
/// <returns>The object value.</returns>
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
DataSet ds = new DataSet();
DataTableConverter converter = new DataTableConverter();
reader.Read();
while (reader.TokenType == JsonToken.PropertyName)
{
DataTable dt = (DataTable)converter.ReadJson(reader, typeof (DataTable), null, serializer);
ds.Tables.Add(dt);
}
return ds;
}
/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
/// <param name="value">The value.</param>
/// <param name="serializer">The calling serializer.</param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
DataSet dataSet = (DataSet)value;
DataTableConverter converter = new DataTableConverter();
writer.WriteStartObject();
foreach (DataTable table in dataSet.Tables)
{
writer.WritePropertyName(table.TableName);
converter.WriteJson(writer, table, serializer);
}
writer.WriteEndObject();
}
/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
/// <param name="value">The value.</param>
/// <param name="serializer">The calling serializer.</param>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
DataSet dataSet = (DataSet)value;
DefaultContractResolver resolver = serializer.ContractResolver as DefaultContractResolver;
DataTableConverter converter = new DataTableConverter();
writer.WriteStartObject();
foreach (DataTable table in dataSet.Tables)
{
writer.WritePropertyName((resolver != null) ? resolver.ResolvePropertyName(table.TableName) : table.TableName);
converter.WriteJson(writer, table, serializer);
}
writer.WriteEndObject();
}
/// <summary>
/// Writes the JSON representation of the object.
/// </summary>
/// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
/// <param name="value">The value.</param>
/// <param name="serializer">The calling serializer.</param>
public override void WriteJson(JsonWriter writer, object?value, JsonSerializer serializer)
{
if (value == null)
{
writer.WriteNull();
return;
}
DataSet dataSet = (DataSet)value;
DefaultContractResolver?resolver = serializer.ContractResolver as DefaultContractResolver;
DataTableConverter converter = new DataTableConverter();
writer.WriteStartObject();
foreach (DataTable table in dataSet.Tables)
{
writer.WritePropertyName((resolver != null) ? resolver.GetResolvedPropertyName(table.TableName) : table.TableName);
converter.WriteJson(writer, table, serializer);
}
writer.WriteEndObject();
}
public override object ReadJson(JsonReader reader, Type objectType, [Nullable(2)] object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
DataSet dataSet = (objectType == typeof(DataSet)) ? new DataSet() : ((DataSet)Activator.CreateInstance(objectType));
DataTableConverter dataTableConverter = new DataTableConverter();
reader.ReadAndAssert();
while (reader.TokenType == JsonToken.PropertyName)
{
DataTable dataTable = dataSet.Tables[(string)reader.Value];
bool flag = dataTable != null;
dataTable = (DataTable)dataTableConverter.ReadJson(reader, typeof(DataTable), dataTable, serializer);
if (!flag)
{
dataSet.Tables.Add(dataTable);
}
reader.ReadAndAssert();
}
return(dataSet);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
DataTable dataTable;
if (reader.TokenType == JsonToken.PropertyName)
{
dataTable = new DataTable((string)reader.Value);
reader.Read();
}
else
{
dataTable = new DataTable();
}
reader.Read();
while (reader.TokenType == JsonToken.StartObject)
{
DataRow row = dataTable.NewRow();
reader.Read();
while (reader.TokenType == JsonToken.PropertyName)
{
string index = (string)reader.Value;
reader.Read();
if (!dataTable.Columns.Contains(index))
{
Type columnDataType = DataTableConverter.GetColumnDataType(reader.TokenType);
dataTable.Columns.Add(new DataColumn(index, columnDataType));
}
row[index] = reader.Value ?? (object)DBNull.Value;
reader.Read();
}
row.EndEdit();
dataTable.Rows.Add(row);
reader.Read();
}
return((object)dataTable);
}
private static void CreateRow(JsonReader reader, DataTable dt, JsonSerializer serializer)
{
object value;
DataRow dataRow = dt.NewRow();
reader.ReadAndAssert();
while (reader.TokenType == JsonToken.PropertyName)
{
string str = (string)reader.Value;
reader.ReadAndAssert();
DataColumn item = dt.Columns[str];
if (item == null)
{
item = new DataColumn(str, DataTableConverter.GetColumnDataType(reader));
dt.Columns.Add(item);
}
if (item.DataType == typeof(DataTable))
{
if (reader.TokenType == JsonToken.StartArray)
{
reader.ReadAndAssert();
}
DataTable dataTable = new DataTable();
while (reader.TokenType != JsonToken.EndArray)
{
DataTableConverter.CreateRow(reader, dataTable, serializer);
reader.ReadAndAssert();
}
dataRow[str] = dataTable;
}
else if (!item.DataType.IsArray || !(item.DataType != typeof(byte[])))
{
if (reader.Value != null)
{
value = serializer.Deserialize(reader, item.DataType);
if (value == null)
{
value = DBNull.Value;
}
}
else
{
value = DBNull.Value;
}
dataRow[str] = value;
}
else
{
if (reader.TokenType == JsonToken.StartArray)
{
reader.ReadAndAssert();
}
List <object> objs = new List <object>();
while (reader.TokenType != JsonToken.EndArray)
{
objs.Add(reader.Value);
reader.ReadAndAssert();
}
Array arrays = Array.CreateInstance(item.DataType.GetElementType(), objs.Count);
((ICollection)objs).CopyTo(arrays, 0);
dataRow[str] = arrays;
}
reader.ReadAndAssert();
}
dataRow.EndEdit();
dt.Rows.Add(dataRow);
}
