128 lines
3.9 KiB
C#
128 lines
3.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using MyCode.Project.Infrastructure.Extensions;
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namespace MyCode.Project.Infrastructure.Imports
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{
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/// <summary>
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/// 基本类型数据属性类
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/// </summary>
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public class ImportProperty
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{
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/// <summary>
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/// 标题
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/// </summary>
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public string Caption { get; set; }
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/// <summary>
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/// 实体的属性名称
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/// </summary>
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public string EntityProp { get; set; }
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/// <summary>
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/// 是否允许为空，默认允许
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/// </summary>
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public bool IsNullable { get; set; }
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/// <summary>
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/// 最大长度
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/// </summary>
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public int MaxLength { get; set; }
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/// <summary>
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/// 数据类型，默认为字符串，只有string、int、decimal三个类型，其他类型不做检查
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/// </summary>
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public Type ValueType { get; set; }
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public ImportProperty()
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{
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this.IsNullable = true;
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this.ValueType = typeof(string);
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}
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/// <summary>
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/// 验证数据格式是否合法
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/// </summary>
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/// <param name="input">输入数据</param>
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/// <param name="message">错误消息</param>
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/// <returns></returns>
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public bool ValidateInput(object input, ref string message)
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{
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if (input == null && this.IsNullable)
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{
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return true;
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}
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if (input == null && !this.IsNullable)
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{
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message=string.Format("[{0}]列不允许为空，必须填写数据!",this.Caption);
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return false;
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}
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var str = input.ToString();
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if (string.IsNullOrEmpty(str) && !this.IsNullable)
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{
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message = string.Format("[{0}]列不允许为空，必须填写数据!", this.Caption);
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return false;
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}
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if (string.IsNullOrEmpty(str) && this.IsNullable)
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{
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return true;
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}
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if (str.Length > this.MaxLength)
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{
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message = string.Format("[{0}]列中的[{1}]数据超出最大长度!", this.Caption, input);
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return false;
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}
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if (this.ValueType == typeof(decimal))
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{
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if (!Regex.IsMatch(str, @"^([0-9]+\.[0-9]+)|[0-9]+$"))
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{
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message=string.Format("[{0}]列中的[{1}]数据不是合法的数值!",this.Caption,input);
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return false;
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}
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}
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if (this.ValueType == typeof(int))
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{
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if (!Regex.IsMatch(str, @"^[0-9]+$"))
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{
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message = string.Format("[{0}]列中的[{1}]数据不是合法的整数!", this.Caption, input);
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return false;
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}
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}
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if (this.ValueType == typeof(DateTime))
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{
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DateTime value=DateTime.Now;
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if (!DateTime.TryParse(str, out value))
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{
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message = string.Format("[{0}]列中的[{1}]数据不是合法的时间!", this.Caption, input);
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return false;
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}
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}
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return true;
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}
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/// <summary>
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/// 获取对应类型的数据
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/// </summary>
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/// <param name="input">输入数据</param>
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/// <returns></returns>
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public object GetValue(object input)
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{
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if (input == null)
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{
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return null;
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}
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if (input.GetType() == this.ValueType)
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{
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return input;
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}
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return Convert.ChangeType(input, this.ValueType);
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}
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}
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}
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