两个日期之间的条件不匹配

本文介绍了两个日期之间的条件不匹配的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

它始终在条件表达式中显示条件不匹配。这是我的代码。

It always show criteria mismatch in criteria expression. Here's my code.

OleDbCommand pending = new OleDbCommand("SELECT * FROM businesses WHERE business_active = 0 AND date_of_application BETWEEN '" + FromDateTxt.Value.ToString("MM/dd/yyyy") + "' AND '" + ToDateTxt.Value.ToString("MM/dd/yyyy") + "'", cn.con); OleDbDataReader dr_pending = pending.ExecuteReader();

推荐答案

尝试以下操作，可以避免数据类型不匹配。如果您的列不仅是数据，则将参数设置为datatime：

Try the following, it avoids datatype mismatches. if your column is not only a data, make the parameter a datatime:

SqlParameter fromDate = new SqlParameter(); fromDate.ParameterName = "@FromDate"; fromDate.SqlDbType = SqlDbType.Date; fromDate.Direction = ParameterDirection.Input; fromDate.Value = FromDateTxt.Value; SqlParameter toDate = new SqlParameter(); toDate.ParameterName = "@ToDate"; toDate.SqlDbType = SqlDbType.Date; toDate.Direction = ParameterDirection.Input; toDate.Value = ToDateTxt.Value; OleDbCommand pending = new OleDbCommand("SELECT * FROM businesses WHERE business_active = 0 AND date_of_application BETWEEN @FromDate AND @ToDate", cn.con); OleDbDataReader dr_pending = pending.ExecuteReader();