SQLSERVER单表CRUD通用方法

 1 public bool Insert<T>(T t)
 2 {
 3     var o = t.GetType();
 4     var sBulider = new StringBuilder("insert into ");
 5     sBulider.Append("[" + o.Name + "]");
 6     sBulider.Append("(");
 7     var properties = o.GetProperties();
 8     foreach (var p in properties)
 9     {
10         sBulider.Append(p.Name);
11         sBulider.Append(",");
12     }
13     sBulider.Length--;
14     sBulider.Append(") values(");
15     foreach (var p in properties)
16     {
17         sBulider.AppendFormat("‘{0}‘", p.GetValue(t, null));
18         sBulider.Append(",");
19     }
20     sBulider.Length--;
21     sBulider.Append(")");
22     return SqlDBHelper.ExecuteSql(sBulider.ToString()) > 0;
23 }

 1 public bool Delete(string tableName, string idList)
 2 {
 3     var ids = new StringBuilder();
 4     foreach (var id in idList.Split(‘,‘))
 5     {
 6         ids.Append("‘");
 7         ids.Append(id);
 8         ids.Append("‘,");
 9     }
10     ids.Length--;
11     var sql = string.Format("delete from [{0}] where Id in ({1})", tableName, ids.ToString());
12     return SqlDBHelper.ExecuteSql(sql) > 0;
13 }

 1 public bool Update<T>(T t)
 2 {
 3     var o = t.GetType();
 4     var sBulider = new StringBuilder("update ");
 5     sBulider.Append("[" + o.Name + "]");
 6     sBulider.Append(" set ");
 7     var id = "";
 8     var properties = o.GetProperties();
 9     foreach (var p in properties)
10     {
11         var columnName = p.Name;
12         var columnValue = p.GetValue(t, null);
13         if (columnName == "Id")
14             id = columnValue.ToString();
15         sBulider.Append(columnName);
16         sBulider.AppendFormat("=‘{0}‘", columnValue);
17         sBulider.Append(",");
18     }
19     sBulider.Length--;
20     sBulider.AppendFormat("where Id=‘{0}‘", id);
21     return SqlDBHelper.ExecuteSql(sBulider.ToString()) > 0;
22 }

 1 public List<T> SerarchList<T>(string where = "") where T : new()
 2 {
 3     var tableName = new T().GetType().Name;
 4     var sqlString = new StringBuilder();
 5     sqlString.AppendFormat("select * from [{0}]", tableName);
 6     if (!string.IsNullOrEmpty(where))
 7     {
 8         sqlString.AppendFormat(" where ‘{0}‘", where);
 9     }
10     var list = new List<T>();
11     using (var dataReader = SqlDBHelper.ExecuteReader(sqlString.ToString()))
12     {
13         while (dataReader.Read())
14         {
15             var t = new T();
16             var properties = t.GetType().GetProperties();
17             foreach (var p in properties)
18             {
19                 p.SetValue(t, dataReader[p.Name], null);
20             }
21             list.Add(t);
22         }
23     }
24     return list;
25 }