json作為ajax常用的一種數(shù)據(jù)類型，經(jīng)常使用。但如果字段中出現(xiàn)換行符如何處理？

去掉顯然不合適。有些字段本來就有換行符，如何能去掉？

測試一下json類的處理，也沒有發(fā)現(xiàn)。想不到最終的處理確實如此簡單：

后臺代碼把換行符\r\n替換為\\r\\n，前臺代碼js收到的字符就是\r\n

復制代碼代碼如下:

 
public static string ConvertFromListTojson<T>(IList<T> list, int total, string columnInfos) where T : class 

{ 

string[] cols = columnInfos.Split(new char[]{','},StringSplitOptions.RemoveEmptyEntries); 

StringBuilder sb = new StringBuilder(300); 

sb.Append("{\"total\":"); 

sb.Append(total); 

sb.Append(",\"rows\":"); 

sb.Append("["); 

foreach (T t in list) 

{ 

sb.Append("{"); 

foreach (string col in cols) 

{ 

string name = "\"{0}\":\"{1}\","; 

string value = getValue<T>(t, col); 

value = value.Replace("\r\n", "\\r\\n"); 

sb.Append(string.Format(name, col, value)); 

} 

if (cols.Length > 0) 

{ 

int length = sb.Length; 

sb.Remove(length - 1, 1); 

} 

sb.Append("},"); 

} 

if (list.Count > 0) 

{ 

int length2 = sb.Length; 

sb.Remove(length2 - 1, 1); 

} 

sb.Append("]"); 

sb.Append("}"); 

return sb.ToString(); 

} 

private static string getValue<T>(T t, string pname) where T : class 

{ 

Type type = t.GetType(); 

PropertyInfo pinfo = type.GetProperty(pname); 

if (pinfo != null) 

{ 

object v = pinfo.GetValue(t, null); 

return v != null ? v.ToString() : ""; 

} 

else 

{ 

throw new Exception("不存在屬性" + pname); 

} 

}