C# 如何在asp.net web表单中为ms sql编写包含多个筛选器输入的搜索查询

我需要为高级搜索表单编写一个SQL查询，如下图所示

我编写了这个部分sql查询，但我无法使它正常工作，因为如果用户选中第二个复选框并离开第一个复选框，它也会出现语法错误

strSql = "SELECT ArticleID, ArticleTitle, ArticleDesc, ArticlePublishDate FROM art_Articles WHERE ";
strSql += "( ArticleVisible = 1 AND ArticleActive =1 AND LanguageID =" + LangID +" )";
strSql += " AND ";
strSql += " ( ";

if (cbArchiveTitle.Checked)
{ strSql += "  ArticleTitle LIKE N'%" + search + "%'  "; }
if (cbArchiveDesc.Checked)
{ strSql += " OR ArticleDesc LIKE N'%" + search + "%'  "; }
if (cbArchiveSummary.Checked)
{ strSql += " OR ArticleBodyDesc LIKE N'%" + search + "%'  "; }

strSql += ")";

如果我设计这样的查询

 SELECT ArticleID, ArticleTitle, ArticleDesc, ArticlePublishDate FROM art_Articles WHERE 
 ( ArticleVisible = 1 AND ArticleActive =1 AND LanguageID =1 ) AND  
 (   ArticleTitle LIKE N'%Jobs%'   OR ArticleDesc LIKE N'%%'  ) 

并将空值传递给未选中的字段，然后我得到所有选中的行

---

如果您能帮助我设计此查询，使其适用于如图所示的表单，我将不胜感激。

您可以在代码中添加一些小技巧，以解决“未选中第一个”复选框的问题：

strSql = "SELECT ArticleID, ArticleTitle, ArticleDesc, ArticlePublishDate FROM 

art_Articles WHERE ";
strSql += "( ArticleVisible = 1 AND ArticleActive =1 AND LanguageID =" + LangID +" )";
strSql += " AND ";
strSql += " ( 0 = 1 ";

if (cbArchiveTitle.Checked)
{ strSql += " OR ArticleTitle LIKE N'%" + search + "%'  "; }
if (cbArchiveDesc.Checked)
{ strSql += " OR ArticleDesc LIKE N'%" + search + "%'  "; }
if (cbArchiveSummary.Checked)
{ strSql += " OR ArticleBodyDesc LIKE N'%" + search + "%'  "; }

strSql += ")";

---

但一般来说，用这种方式编写SQL语句并不是一种好方法。您可以考虑使用类似于或至少一些查询生成器（如

< p>）的技术，您可以向代码添加一些小技巧以解决未选中的第一个复选框：

strSql = "SELECT ArticleID, ArticleTitle, ArticleDesc, ArticlePublishDate FROM 

art_Articles WHERE ";
strSql += "( ArticleVisible = 1 AND ArticleActive =1 AND LanguageID =" + LangID +" )";
strSql += " AND ";
strSql += " ( 0 = 1 ";

if (cbArchiveTitle.Checked)
{ strSql += " OR ArticleTitle LIKE N'%" + search + "%'  "; }
if (cbArchiveDesc.Checked)
{ strSql += " OR ArticleDesc LIKE N'%" + search + "%'  "; }
if (cbArchiveSummary.Checked)
{ strSql += " OR ArticleBodyDesc LIKE N'%" + search + "%'  "; }

strSql += ")";

---

但一般来说，用这种方式编写SQL语句并不是一种好方法。您可以考虑使用类似于或至少一些查询生成器（如

）的技术，SelectQueryBuilder似乎是一种选择，我也使用了一个小技巧（如果是CBAsQueTest.Cug）{StRSQL + =“像N'%%的文章标题+搜索+“%”）；} {StRSQL + =“ArticleTitle不象N%%”；}SelectQueryBuilder似乎是一个选项，我也使用了一个小技巧，如果（cbArchiveTitle.Checked）{strSql+=“ArticleTitle象N%%”+“search+%”；}或者{strSql+=“ArticleTitle不象N%%”；}