public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
var dataResult = value as DataResult;
#region 序列化DataResult对象
writer.WriteStartObject();
// 写total属性
writer.WritePropertyName("total");
serializer.Serialize(writer, dataResult.Total);
// 写pagecount属性
writer.WritePropertyName("pagecount");
serializer.Serialize(writer, dataResult.PageCount);
// 写pageindex属性
writer.WritePropertyName("pageindex");
serializer.Serialize(writer, dataResult.PageIndex);
// 写rows属性
var converter = new DataTableConverter();
writer.WritePropertyName("rows");
converter.WriteJson(writer, dataResult.Data, serializer);
writer.WriteEndObject();
#endregion
}
public void SerializeValues()
{
DataTable dt = new DataTable();
Dictionary <Type, object> types = new Dictionary <Type, object>
{
[typeof(TimeSpan)] = TimeSpan.Zero,
[typeof(char[])] = new char[] { 'a', 'b', 'c' },
[typeof(Type)] = typeof(string),
[typeof(Object)] = new object(),
[typeof(byte[])] = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 },
[typeof(Uri)] = new Uri("http://localhost"),
[typeof(Guid)] = new Guid(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11),
[typeof(BigInteger)] = BigInteger.Parse("10000000000000000000000000000000000")
};
foreach (var ss in types)
{
dt.Columns.Add(ss.Key.Name, ss.Key);
}
dt.Rows.Add(types.Select(t => t.Value).ToArray());
StringWriter sw = new StringWriter();
JsonTextWriter jsonWriter = new JsonTextWriter(sw);
jsonWriter.Formatting = Formatting.Indented;
DataTableConverter converter = new DataTableConverter();
converter.WriteJson(jsonWriter, dt, new JsonSerializer());
string stringName = typeof(string).AssemblyQualifiedName;
StringAssert.AreEqual(
@"[
{
""TimeSpan"": ""00:00:00"",
""Char[]"": [
""a"",
""b"",
""c""
],
""Type"": """
+ stringName
+ @""",
""Object"": {},
""Byte[]"": ""AQIDBAUGBwg="",
""Uri"": ""http://localhost"",
""Guid"": ""00000001-0002-0003-0405-060708090a0b"",
""BigInteger"": 10000000000000000000000000000000000
}
]",
sw.ToString()
);
}
public void WriteJsonNull()
{
StringWriter sw = new StringWriter();
JsonTextWriter jsonWriter = new JsonTextWriter(sw);
DataTableConverter converter = new DataTableConverter();
converter.WriteJson(jsonWriter, null, null);
StringAssert.AreEqual(@"null", sw.ToString());
}
public void SerializeNullValues()
{
DataTable dt = new DataTable();
List <Type> types = new List <Type>
{
typeof(TimeSpan),
typeof(char[]),
typeof(Type),
typeof(Object),
typeof(byte[]),
typeof(Uri),
typeof(Guid),
typeof(BigInteger)
};
foreach (var ss in types)
{
dt.Columns.Add(ss.Name, ss);
}
dt.Rows.Add(types.Select(t => (object)null).ToArray());
StringWriter sw = new StringWriter();
JsonTextWriter jsonWriter = new JsonTextWriter(sw);
jsonWriter.Formatting = Formatting.Indented;
DataTableConverter converter = new DataTableConverter();
converter.WriteJson(jsonWriter, dt, new JsonSerializer());
StringAssert.AreEqual(
@"[
{
""TimeSpan"": null,
""Char[]"": null,
""Type"": null,
""Object"": null,
""Byte[]"": null,
""Uri"": null,
""Guid"": null,
""BigInteger"": null
}
]",
sw.ToString()
);
}
/// <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.GetResolvedPropertyName(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>
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
DataSet dataSet = value as DataSet;
DataTableConverter converter = new DataTableConverter(this.replaceColumnNameWithDefaultNameProperty);
writer.WriteStartObject();
writer.WritePropertyName("Tables");
writer.WriteStartArray();
foreach (DataTable table in dataSet.Tables)
{
converter.WriteJson(writer, table, serializer);
}
writer.WriteEndArray();
writer.WriteEndObject();
}
public override void WriteJson(Newtonsoft.Json.JsonWriter writer, object dataset,
Newtonsoft.Json.JsonSerializer serializer)
{
System.Data.DataSet dataSet = dataset as System.Data.DataSet;
DataTableConverter converter = new DataTableConverter();
writer.WriteStartObject();
writer.WritePropertyName("Tables");
writer.WriteStartArray();
foreach (System.Data.DataTable table in dataSet.Tables)
{
converter.WriteJson(writer, table, serializer);
}
writer.WriteEndArray();
writer.WriteEndObject();
converter = null;
}
