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public static partial class Extensions { #region 数值转换 public static int ToInt(this object data) { if (data == null) return 0; int result; var success = int.TryParse(data.ToString(), out result); if (success) return result; try { return Convert.ToInt32(ToDouble(data, 0)); } catch (Exception) { return 0; } }
public static int? ToIntOrNull(this object data) { if (data == null) return null; int result; bool isValid = int.TryParse(data.ToString(), out result); if (isValid) return result; return null; }
public static double ToDouble(this object data) { if (data == null) return 0; double result; return double.TryParse(data.ToString(), out result) ? result : 0; }
public static double ToDouble(this object data, int digits) { return Math.Round(ToDouble(data), digits); }
public static double? ToDoubleOrNull(this object data) { if (data == null) return null; double result; bool isValid = double.TryParse(data.ToString(), out result); if (isValid) return result; return null; }
public static decimal ToDecimal(this object data) { if (data == null) return 0; decimal result; return decimal.TryParse(data.ToString(), out result) ? result : 0; }
public static decimal ToDecimal(this object data, int digits) { return Math.Round(ToDecimal(data), digits); }
public static decimal? ToDecimalOrNull(this object data) { if (data == null) return null; decimal result; bool isValid = decimal.TryParse(data.ToString(), out result); if (isValid) return result; return null; }
public static decimal? ToDecimalOrNull(this object data, int digits) { var result = ToDecimalOrNull(data); if (result == null) return null; return Math.Round(result.Value, digits); }
#endregion
#region 日期转换 public static DateTime ToDate(this object data) { if (data == null) return DateTime.MinValue; DateTime result; return DateTime.TryParse(data.ToString(), out result) ? result : DateTime.MinValue; }
public static DateTime? ToDateOrNull(this object data) { if (data == null) return null; DateTime result; bool isValid = DateTime.TryParse(data.ToString(), out result); if (isValid) return result; return null; }
#endregion
#region 布尔转换 public static bool ToBool(this object data) { if (data == null) return false; bool? value = GetBool(data); if (value != null) return value.Value; bool result; return bool.TryParse(data.ToString(), out result) && result; }
private static bool? GetBool(this object data) { switch (data.ToString().Trim().ToLower()) { case "0": return false; case "1": return true; case "是": return true; case "否": return false; case "yes": return true; case "no": return false; default: return null; } }
public static bool? ToBoolOrNull(this object data) { if (data == null) return null; bool? value = GetBool(data); if (value != null) return value.Value; bool result; bool isValid = bool.TryParse(data.ToString(), out result); if (isValid) return result; return null; }
#endregion
#region 字符串转换 public static string ToString(this object data) { return data == null ? string.Empty : data.ToString().Trim(); } #endregion }
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