/// <summary>
/// Creates a new instance of <see cref="JsonPropertyDefinition"/>.
/// </summary>
/// <param name="propertyName">The name of the property.</param>
/// <param name="category">A category the property belongs.</param>
/// <param name="description">A description of the property.</param>
/// <param name="defaultValue">The default value if the property.</param>
/// <param name="browsable">Can the property be viewed in a control such as PropertyGrid.</param>
/// <param name="readOnly">Can the property be edited?</param>
public JsonPropertyDefinition(string propertyName, string category, string description, JsonValue defaultValue, bool browsable, bool readOnly)
{
PropertyName = propertyName;
Category = category;
Description = description;
DefaultValue = defaultValue;
Browsable = browsable;
ReadOnly = readOnly;
}
/// <summary>
/// Tries to parse a string of json and determine is <see cref="JsonValue"/> type.
/// </summary>
/// <param name="json">A string of json that should be parsed.</param>
/// <param name="value">The output <see cref="JsonValue"/> created if successful. If not successful, a <see cref="JsonNull"/> se set to <paramref name="value"/>.</param>
/// <returns>Returns true if <see cref="JsonValue"/> was successfully created; otherwise false is returned.</returns>
public static bool TryParse(string json, out JsonValue value)
{
if (string.IsNullOrEmpty(json))
{
value = new JsonNull();
return true;
}
if (json.StartsWith("{", StringComparison.CurrentCulture) && json.EndsWith("}", StringComparison.Ordinal))
{
value = new JsonObject(json);
return true;
}
if (json.StartsWith("[") && json.EndsWith("]"))
{
value = new JsonArray(json);
return true;
}
if (json.StartsWith("\"") && json.EndsWith("\""))
{
json = json.Substring(1, json.Length - 2);
if (json.StartsWith("base64:"))
value = new JsonBinary(json);
else
value = new JsonString(json);
return true;
}
decimal v;
bool bv;
if (decimal.TryParse(json, out v))
{
value = new JsonNumber(v);
return true;
}
if (bool.TryParse(json, out bv))
{
value = new JsonBoolean(bv);
return true;
}
value = null;
return false;
}
/// <summary>
/// Determine if a <see cref="JsonValue"/> is null.
/// </summary>
/// <param name="value">A value to determine.</param>
/// <returns>Returns true if <paramref name="value"/> is null or is a <see cref="JsonNull"/></returns>
public static bool IsNull(JsonValue value)
{
if ((object)value == null)
return true;
JsonNull n = value as JsonNull;
if ((object)n != null)
return true;
return false;
}
internal void SetParent(JsonValue parent)
{
_parent = parent;
}
/// <summary>
/// Creates a new instance of <see cref="JsonPropertyDefinition"/>.
/// </summary>
/// <param name="propertyName">The name of the property.</param>
/// <param name="category">A category the property belongs.</param>
/// <param name="description">A description of the property.</param>
/// <param name="defaultValue">The default value if the property.</param>
/// <param name="browsable">Can the property be viewed in a control such as PropertyGrid.</param>
/// <param name="readOnly">Can the property be edited?</param>
public static JsonPropertyDefinition Create(string propertyName, string category, string description, JsonValue defaultValue, bool browsable, bool readOnly)
{
return new JsonPropertyDefinition(propertyName, category, description, defaultValue, browsable, readOnly);
}