网格仅显示expr1000，但程序未显示错误 [英] grid showing only expr1000 but program shows no error

问题描述

亲爱的我正在使用Access 2002并创建了一个视图

在我的网格下面使用查询时仅显示expr1000

删除"AND"，我也尝试过，(逗号)

有人可以帮我吗，我是编程的新手

Dear all I am using access 2002 and created one view

while using query below my grid is showing only expr1000

removing ''AND'' i also tried ,(comma)

can someone help me out , iam new to programing

objClass1vrb.objds.Clear();
            string qrfinal = "select Publicationname AND Authorname from Author where Publicationname AND Authorname='" + compublisher.SelectedItem + "'AND'" + comauthor.SelectedItem + "'";


            objClass1vrb.objds = new DataSet();
            objClass1vrb.objds = objclassfunhelp.Retdataset(qrfinal);
            dataGridView1.DataSource = objClass1vrb.objds.Tables[0];

推荐答案

出版物名称AND Authorname":这是一个布尔值，肯定不是您想要的值.
猜猜您想同时看到两个值，在两者之间使用逗号，并在WHERE子句中测试与AND链接的两个条件.

"Publicationname AND Authorname": that is a Boolean value, surely not what you want to get.
Guess that you want to see both values, use a comma in between, and in your WHERE clause test two conditions which are linked with AND.

Select a, b 
From aTable
Where a='valueOfA' AND b='valueOfB'

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