序列化值的OData

Question

是否有一個函數（也許在ODataLib 5.6.1）序列化.NET原始類型到的OData URI格式（see）

例如：

new DateTime(2000,12,12).ToODataString() //would return: datetime’2000-12-12T12:00′ 

Answer 1

隨着靜態類Microsoft.Data.OData.Query.ODataUriUtils， 可以調用ConvertToUriLiteral序列化值URI文字。

public static string ConvertToUriLiteral(object value, ODataVersion version) 
public static string ConvertToUriLiteral(object value, ODataVersion version, IEdmModel model) 
public static string ConvertToUriLiteral(object value, ODataVersion version, IEdmModel model, ODataFormat format) 

你可以叫ConvertFromUriLiteral做反序列化。

public static object ConvertFromUriLiteral(string value, ODataVersion version) 
public static object ConvertFromUriLiteral(string value, ODataVersion version, IEdmModel model, IEdmTypeReference typeReference) 

Answer 2

這裏是我的臨時實現，直到有人知道ODataLib中的函數。

static public string ToODataUriString(object value) 
{ 
    if (value == null) return "null"; 
    switch (value.GetType().FullName) 
    { 
     case "System.Guid": 
      return string.Format("guid'{0}'", (Guid)value); 
     case "System.Decimal": 
      return string.Format("{0}m", (decimal)value); 
     case "System.Single": 
      return string.Format("{0}f", ((Single)value).ToString("R")); 
     case "System.Double": 
      return string.Format("{0}d", ((double)value).ToString("R")); 
     case "System.Boolean": 
      return string.Format("{0}", (Boolean)value).ToLower(); 
     case "System.DateTime": 
      { 
       DateTime dvalue = (DateTime)value; 
       string format; 
       if (dvalue.Second==0 && dvalue.Millisecond==0) 
        format = "yyyy-MM-ddTHH:mm"; //datetime’yyyy-mm-ddThh:mm[:ss[.fffffff]]’ 
       else if (dvalue.Millisecond == 0) 
        format = "yyyy-MM-ddTHH:mm:ss"; //datetime’yyyy-mm-ddThh:mm[:ss[.fffffff]]’ 
       else 
        format = "yyyy-MM-ddTHH:mm:ss.fffffff"; //datetime’yyyy-mm-ddThh:mm[:ss.fffffff]]’ 
       return string.Format("datetime'{0}'", dvalue.ToString(format)); 
      } 
     case "System.DateTimeOffset": 
      return string.Format("datetimeoffset'{0}Z'", ((DateTimeOffset)value).ToString("s")); 
     case "System.Int16": 
     case "System.Int32": 
     case "System.Byte": 
      return value.ToString(); 
     case "System.Int64": 
      return string.Format("{0}L", value); 
     case "System.TimeSpan": 
      return string.Format("time'{0}'", (TimeSpan)value); 
     case "System.String": 
      // TODO Need better quote handling for escaping, this is not correct 
      return string.Format("'{0}'", value.ToString().Replace("'", "''")); 
     default: 
      // TODO Need better quote handling for escaping, this is not correct 
      return string.Format("'{0}'", value.ToString().Replace("'", "''")); 
    } 
}