本文整理汇总了C#中Newtonsoft.Json.JsonTextWriter.WriteNull方法的典型用法代码示例。如果您正苦于以下问题：C# JsonTextWriter.WriteNull方法的具体用法？C# JsonTextWriter.WriteNull怎么用？C# JsonTextWriter.WriteNull使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Newtonsoft.Json.JsonTextWriter的用法示例。
在下文中一共展示了JsonTextWriter.WriteNull方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ValueFormatting
public void ValueFormatting()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue('@');
jsonWriter.WriteValue("\r\n\t\f\b?{\\r\\n\"\'");
jsonWriter.WriteValue(true);
jsonWriter.WriteValue(10);
jsonWriter.WriteValue(10.99);
jsonWriter.WriteValue(0.99);
jsonWriter.WriteValue(0.000000000000000001d);
jsonWriter.WriteValue(0.000000000000000001m);
jsonWriter.WriteValue((string)null);
jsonWriter.WriteValue((object)null);
jsonWriter.WriteValue("This is a string.");
jsonWriter.WriteNull();
jsonWriter.WriteUndefined();
jsonWriter.WriteEndArray();
}
string expected = @"[""@"",""\r\n\t\f\b?{\\r\\n\""'"",true,10,10.99,0.99,1E-18,0.000000000000000001,null,null,""This is a string."",null,undefined]";
string result = sb.ToString();
Console.WriteLine("ValueFormatting");
Console.WriteLine(result);
Assert.AreEqual(expected, result);
}示例2: SerializeMessage
public static void SerializeMessage(JsonTextWriter writer, ServiceType type, object message)
{
Require.NotNull(writer, "writer");
Require.NotNull(type, "type");
Require.NotNull(message, "message");
writer.WriteStartObject();
foreach (var field in type.Fields.Values)
{
writer.WritePropertyName(field.Tag.ToString(CultureInfo.InvariantCulture));
object value = field.Getter(message);
if (value == null)
{
writer.WriteNull();
}
else if (field.CollectionType != null)
{
writer.WriteStartArray();
foreach (object item in (IEnumerable)value)
{
if (field.ServiceType != null)
SerializeMessage(writer, field.ServiceType, item);
else
writer.WriteValue(item);
}
writer.WriteEndArray();
}
else
{
if (field.ServiceType != null)
SerializeMessage(writer, field.ServiceType, value);
else
writer.WriteValue(value);
}
}
writer.WriteEndObject();
}示例3: WriteReadWrite
public void WriteReadWrite()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw)
{
Formatting = Formatting.Indented
})
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(true);
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("integer");
jsonWriter.WriteValue(99);
jsonWriter.WritePropertyName("string");
jsonWriter.WriteValue("how now brown cow?");
jsonWriter.WritePropertyName("array");
jsonWriter.WriteStartArray();
for (int i = 0; i < 5; i++)
{
jsonWriter.WriteValue(i);
}
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("decimal");
jsonWriter.WriteValue(990.00990099m);
jsonWriter.WriteEndObject();
jsonWriter.WriteValue(5);
jsonWriter.WriteEndArray();
jsonWriter.WriteEndObject();
jsonWriter.WriteValue("This is a string.");
jsonWriter.WriteNull();
jsonWriter.WriteNull();
jsonWriter.WriteEndArray();
}
string json = sb.ToString();
JsonSerializer serializer = new JsonSerializer();
object jsonObject = serializer.Deserialize(new JsonTextReader(new StringReader(json)));
sb = new StringBuilder();
sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw)
{
Formatting = Formatting.Indented
})
{
serializer.Serialize(jsonWriter, jsonObject);
}
Assert.AreEqual(json, sb.ToString());
}示例4: Path
public void Path()
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
string text = "Hello world.";
byte[] data = Encoding.UTF8.GetBytes(text);
using (JsonTextWriter writer = new JsonTextWriter(sw))
{
writer.Formatting = Formatting.Indented;
writer.WriteStartArray();
Assert.AreEqual("", writer.Path);
writer.WriteStartObject();
Assert.AreEqual("[0]", writer.Path);
writer.WritePropertyName("Property1");
Assert.AreEqual("[0].Property1", writer.Path);
writer.WriteStartArray();
Assert.AreEqual("[0].Property1", writer.Path);
writer.WriteValue(1);
Assert.AreEqual("[0].Property1[0]", writer.Path);
writer.WriteStartArray();
Assert.AreEqual("[0].Property1[1]", writer.Path);
writer.WriteStartArray();
Assert.AreEqual("[0].Property1[1][0]", writer.Path);
writer.WriteStartArray();
Assert.AreEqual("[0].Property1[1][0][0]", writer.Path);
writer.WriteEndObject();
Assert.AreEqual("[0]", writer.Path);
writer.WriteStartObject();
Assert.AreEqual("[1]", writer.Path);
writer.WritePropertyName("Property2");
Assert.AreEqual("[1].Property2", writer.Path);
writer.WriteStartConstructor("Constructor1");
Assert.AreEqual("[1].Property2", writer.Path);
writer.WriteNull();
Assert.AreEqual("[1].Property2[0]", writer.Path);
writer.WriteStartArray();
Assert.AreEqual("[1].Property2[1]", writer.Path);
writer.WriteValue(1);
Assert.AreEqual("[1].Property2[1][0]", writer.Path);
writer.WriteEnd();
Assert.AreEqual("[1].Property2[1]", writer.Path);
writer.WriteEndObject();
Assert.AreEqual("[1]", writer.Path);
writer.WriteEndArray();
Assert.AreEqual("", writer.Path);
}
Assert.AreEqual(@"[
{
""Property1"": [
1,
[
[
[]
]
]
]
},
{
""Property2"": new Constructor1(
null,
[
1
]
)
}
]", sb.ToString());
}示例5: XmlToJson
//.........这里部分代码省略.........
JTW.WriteStartObject();
break;
case ("arr"):
JTW.WriteStartArray();
break;
case("cons" ):
JTW.WriteStartConstructor("");
break;
case ("num"):
case ("str"):
case ("bool"):
case ("undef" ):
ValType = XR.Name;
Read = XR.Read();
NextRead = true;
if (XR.NodeType == XmlNodeType.EndElement)
{
JTW.WriteValue("");
}
break;
case("prop"):
JTW.WritePropertyName(XR.GetAttribute("oname"));
break;
}
break;
case (XmlNodeType.EndElement ):
switch(XR.Name)
{
case("obj"):
JTW.WriteEndObject();
break;
case("arr"):
JTW.WriteEndArray();
break;
case("cons" ):
JTW.WriteEndConstructor();
break;
}
break;
case(XmlNodeType.Text):
switch(ValType)
{
case("num"):
try
{
JTW.WriteValue(Int32.Parse(XR.Value.Trim()));
}
catch
{
try
{
JTW.WriteValue(float.Parse(XR.Value.Trim()));
}
catch
{
JTW.WriteValue(XR.Value);
}
}
break;
case("str"):
JTW.WriteValue(XR.Value.ToString());
break;
case("bool"):
if (XR.Value.ToString().Equals("1"))
{
JTW.WriteValue(true);
}
else if(XR.Value.ToString().Equals("0"))
{
JTW.WriteValue(false);
}
else
{
JTW.WriteValue(XR.Value);
}
break;
case("undef"):
if (XR.Value.ToString() == "null")
{
JTW.WriteNull();
}
else
{
JTW.WriteValue(XR.Value.ToString());
}
break;
}
break;
}
}
JTW.Close();
if (InArray)
{
return string.Format("[{0}]",JW.ToString().Trim());
}
else
{
return JW.ToString().Trim();
}
}示例6: CreatePlaylist_BuildJson
private void CreatePlaylist_BuildJson(string title, string description, IEnumerable<Song> songs, Stream stream)
{
using (var streamWriter = new StreamWriter(stream))
using (var jsonWriter = new JsonTextWriter(streamWriter))
{
jsonWriter.WriteStartArray(); // [
// ["sessionId",1]
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(this.SessionId);
jsonWriter.WriteValue(1);
jsonWriter.WriteEndArray();
// [null, "Name", "Description",
jsonWriter.WriteStartArray();
jsonWriter.WriteNull();
jsonWriter.WriteValue(title);
jsonWriter.WriteValue(description);
// [["Song-Guid", (int)songType], [...]]
jsonWriter.WriteStartArray();
if (songs != null)
{
foreach (Song song in songs)
{
jsonWriter.WriteStartArray();
jsonWriter.WriteValue(song.ID);
jsonWriter.WriteValue(song.Type);
jsonWriter.WriteEndArray();
}
}
jsonWriter.WriteEndArray();
jsonWriter.WriteEndArray(); //]
jsonWriter.WriteEndArray(); //]
}
}示例7: DumpOpCodes
private static void DumpOpCodes()
{
using (var output = new StreamWriter(@"C:\tsv\pets\vmjs\src\runtime\opcodes.js"))
using (var writer = new JsonTextWriter(output)
{
Formatting = Formatting.Indented
})
{
var fields = typeof(OpCodes).GetFields(BindingFlags.Public | BindingFlags.Static | BindingFlags.GetField);
var opCodes = (from fi in fields
select new {fi.Name, OpCode = (OpCode) fi.GetValue(null)})
.OrderBy(x => (uint) x.OpCode.Value)
.ToArray();
Action<string, object> prop = (name, value) =>
{
writer.WritePropertyName(name);
writer.WriteValue(value);
};
Action<string, string> propEnum = (name, value) =>
{
writer.WritePropertyName(name);
writer.WriteRawValue(value);
};
Action<OpCode> dump = opCode =>
{
writer.WriteStartObject();
prop("name", opCode.Name);
prop("size", opCode.Size);
prop("value", opCode.Value);
propEnum("operand", "OperandType." + opCode.OperandType);
propEnum("flow", "FlowControl." + opCode.FlowControl);
propEnum("type", "OpCodeType." + opCode.OpCodeType);
propEnum("pop", "StackBehaviour." + opCode.StackBehaviourPop);
propEnum("push", "StackBehaviour." + opCode.StackBehaviourPush);
writer.WriteEndObject();
};
var shortOpCodes = opCodes.Where(x => x.OpCode.Size == 1).ToDictionary(x => (int) x.OpCode.Value, x => x.Name);
var longOpCodes = opCodes.Where(x => x.OpCode.Size > 1).ToDictionary(x => x.OpCode.Value & 0xff, x => x.Name);
writer.WriteRaw("// warning: this file was auto generated!\n");
writer.WriteRaw("var OpCodes = ");
writer.WriteStartObject();
foreach (var f in opCodes)
{
writer.WritePropertyName(f.Name);
dump(f.OpCode);
}
writer.WriteEndObject();
writer.WriteRaw(";\n");
writer.WriteRaw("var ShortOpCodes = ");
writer.WriteStartArray();
for (var i = 0; i <= 255; i++)
{
string name;
if (shortOpCodes.TryGetValue(i, out name))
{
writer.WriteRawValue("OpCodes." + name);
}
else
{
writer.WriteNull();
}
}
writer.WriteEndArray();
writer.WriteRaw(";\n");
var maxLongOpCode = longOpCodes.Keys.Max();
writer.WriteRawValue("var LongOpCodes = ");
writer.WriteStartArray();
for (var i = 0; i <= maxLongOpCode; i++)
{
string name;
if (longOpCodes.TryGetValue(i, out name))
{
writer.WriteRawValue("OpCodes." + name);
}
else
{
writer.WriteNull();
}
}
writer.WriteEndArray();
writer.WriteRaw(";\n");
}
}