////// 一些常用的方法 /// 1、一些高效的转换方法 /// public class Util { #region Object转换为Int32 ////// Object转换为Int32 /// /// Object ///int 报错也返回0 public static int ConvertToInt32(object o) { try { if (o != DBNull.Value && o != null && o.ToString() != String.Empty) { if (o is int) return (int)o; else if (o is short) return (int)(short)o; else if (o is byte) return (int)(byte)o; else if (o is long) return (int)(long)o; else if (o is double) return (int)(double)o; else if (o is float) return (int)(float)o; else if (o is decimal) return (int)(decimal)o; else if (o is uint) return (int)(uint)o; else if (o is ushort) return (int)(ushort)o; else if (o is ulong) return (int)(ulong)o; else if (o is sbyte) return (int)(sbyte)o; else return int.Parse(o.ToString()); } else { return 0; } } catch { return 0; } } #endregion #region Object 转成 String ////// Object 转成 String /// /// 参数 ///String public static string ConvertToString(object o) { try { if (o != DBNull.Value && o != null && o.ToString() != String.Empty) { return o.ToString(); } else { return ""; } } catch { return ""; } } #endregion #region Object转换为Decimal ////// Object转换为Decimal /// /// Object ///Decimal public static decimal ConvertToDecimal(object o) { try { if (o != DBNull.Value && o != null && o.ToString() != String.Empty) { decimal Num = 0; decimal.TryParse(o.ToString(), out Num); return Num; } else { return 0; } } catch { return 0; } } #endregion #region Object转换为Double ////// Object转换为Double /// /// Object ///Double public static double ConvertToDouble(object o) { try { if (o != DBNull.Value && o != null && o.ToString() != String.Empty) { double Num = 0; double.TryParse(o.ToString(), out Num); return Num; } else { return 0; } } catch { return 0; } } #endregion #region Object转换为Float ////// Object转换为Float /// /// Object ///Double public static Double ConvertToFloat(object o) { try { if (o != DBNull.Value && o != null && o.ToString() != String.Empty) { float Num = 0; float.TryParse(o.ToString(), out Num); return Num; } else { return 0; } } catch { return 0; } } #endregion }