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  • Model实例化类属性与值使用反射拼接成SQL语句

    public string GetInsertSqlByModel(Object o)
            {
                StringBuilder sbStart = new StringBuilder();
                StringBuilder sbFields = new StringBuilder();
                StringBuilder sbValues = new StringBuilder();
                Type t = o.GetType();
                string modelName = t.Name;
                foreach (PropertyInfo p in t.GetProperties())
                {
                    sbFields.Append(p.Name + ",");
                    sbValues.AppendFormat("'{0}',",p.GetValue(o));
                }
                sbStart.AppendFormat("insert into {0}({1}) values({2})",modelName,sbFields.ToString().TrimEnd(','), sbValues.ToString().TrimEnd(','));
                return sbStart.ToString();
            }

    如果不需要添加为null或者为空的栏位,则可以使用如下代码 

    public string GetInsertSqlByModel(Object o)
            {
                StringBuilder sbStart = new StringBuilder();
                StringBuilder sbFields = new StringBuilder();
                StringBuilder sbValues = new StringBuilder();
                Type t = o.GetType();
                string modelName = t.Name;
                foreach (PropertyInfo p in t.GetProperties())
                {
                    if (p.GetValue(o) == null||string.IsNullOrEmpty(p.GetValue(o).ToString()))
                    {
                        continue;
                    }
                    sbFields.Append(p.Name + ",");
                    sbValues.AppendFormat("'{0}',",p.GetValue(o));
                }
                sbStart.AppendFormat("insert into {0}({1}) values({2})",modelName,sbFields.ToString().TrimEnd(','), sbValues.ToString().TrimEnd(','));
                return sbStart.ToString();
            }
        }

    源文:

    http://www.cnblogs.com/xuhongfei/p/7491108.html

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  • 原文地址:https://www.cnblogs.com/shy1766IT/p/9034644.html
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