...{
private string m_strWhere; public Where()
...{ this.Clear();
} public void Add(string name, object val) ...{ if (val == null) ...{ this.Add(name, "null", false); } else ...{ this.Add(name, val.ToString(), val is string || val is DateTime); } } private void Add(string name, string val, bool isref) ...{ if (isref) ...{ val = "'" + val + "'"; } if (this.m_strWhere == string.Empty) ...{ this.m_strWhere = "[" + name + "]=" + val; } else ...{ this.m_strWhere += " and [" + name + "]=" + val; } } public override string ToString() ...{ string strRet = string.Empty; if (this.m_strWhere != string.Empty) ...{ strRet = " Where " + this.m_strWhere; } return strRet; } public void Clear() ...{ this.m_strWhere = string.Empty; }
}
