using System; using System.Collections.Generic; using System.Text; namespace Apewer.Source { /// <summary>用于执行 SQL 语句的参数。</summary> [Serializable] public class Parameter { private string _name; /// <summary>名称,不可设置位为空。</summary> /// <exception cref="ArgumentException"></exception> /// <exception cref="ArgumentNullException"></exception> public string Name { get { return _name; } set { if (value == null) throw new ArgumentNullException(); if (value == "") throw new ArgumentException(); _name = value; } } /// <summary>值。</summary> public object Value { get; set; } /// <summary>类型。</summary> public ColumnType Type { get; set; } /// <summary>类型为 VarChar 时,可指定长度。</summary> public int Size { get; set; } /// <summary>创建用于执行 SQL 语句的参数,名称不可设置位为空。</summary> /// <exception cref="ArgumentException"></exception> /// <exception cref="ArgumentNullException"></exception> public Parameter(string name, object value, ColumnType type, int size = 0) { Name = name; Value = value; Type = type; Size = size; } } }