67 lines
1.9 KiB
C#
67 lines
1.9 KiB
C#
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using System;
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using System.Reflection;
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namespace FlexFramework.Excel
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{
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public class Mapping
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{
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private object _default;
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private int _column;
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public MemberInfo Member { get; private set; }
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public Type Type { get; private set; }
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public int Column
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{
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get { return _column; }
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set
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{
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_column = Math.Max(0, value);
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}
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}
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public object Default
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{
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get { return _default; }
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set
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{
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if (value != null && !Validator.CanCast(value.GetType(), Type))
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{
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throw new ArgumentException(string.Format("Incompatible value '{0}' for type '{1}'", value, Type.FullName), "default");
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}
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_default = value;
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}
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}
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public bool Fallback { get; set; }
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public bool Failed { get; set; }
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public Mapping(MemberInfo member)
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{
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Member = member;
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switch (member.MemberType)
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{
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case MemberTypes.Field:
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Type = ((FieldInfo)member).FieldType;
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break;
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case MemberTypes.Property:
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Type = ((PropertyInfo)member).PropertyType;
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break;
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default:
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throw new NotSupportedException();
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}
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}
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public Mapping(MemberInfo member, int column) : this(member)
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{
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Column = column;
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}
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public Mapping(MemberInfo member, int column, object @default) : this(member, column)
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{
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if (@default == null)
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{
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if (Type.IsValueType)
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throw new ArgumentException(string.Format("null cannot be assigned to value type '{0}'", Type.FullName), "default");
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}
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Default = @default;
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Fallback = true;
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}
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}
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}
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