PROSAGA码农传奇-Sybase-在查询中使用筛选器时，SQL Anywhere 12 ODBC返回零行

在查询中使用筛选器时，SQL Anywhere 12 ODBC返回零行

作者: 一只特立独行的猪
发布时间: 2024-12-13 11:48:33 (19天前)
转自：

<div class =“post-text”itemprop =“text”>
  <P>
    我终于让它工作但没有使用system.data.odbc。我发现了可以安装到项目中的iAnywhere .net参考。我在C：\ Program Files \ SQL Anywhere 12 \ Assembly \ v4.5下找到我的，然后我添加了对我的项目浏览的引用到这个文件夹并导入了iAnywhere.Data.SQLAnywhere.v4.5.dll ..使用这个引用即使在查询中使用过滤器，我现在也可以获得结果。
  </p>
  <P>
    这是现在的代码：
  </p>
   <pre>
    <code>
          public List<SearchArticleNr> SearchArticle(string articlenr)
    {
        List<SearchArticleNr> SarticleList = new List<SearchArticleNr>();
        iAnywhere.Data.SQLAnywhere.SAConnection myConnection = null;
        iAnywhere.Data.SQLAnywhere.SACommand myCommand = null;
        iAnywhere.Data.SQLAnywhere.SADataReader myDataReader = null;
        try
        {
            myConnection = new iAnywhere.Data.SQLAnywhere.SAConnection(conStrMonitor);
            myConnection.Open();
            myCommand = myConnection.CreateCommand();
            myCommand.CommandText = "Select art_artnr, art_ben from monitor.ARTIKEL where art_artnr = ?";
            myCommand.Parameters.Add("@art", articlenr);
            myDataReader = myCommand.ExecuteReader();

int i = 0;
            while (myDataReader.Read())
            {
                i++;
                SearchArticleNr article = new SearchArticleNr();
                article.Article = myDataReader["art_artnr"].ToString();
                article.Ben = myDataReader["art_ben"].ToString();
                SarticleList.Add(article);
            }
            if (i == 0)
            {
                SearchArticleNr article = new SearchArticleNr();
                article.Article = "NO OBJECTS FOUND";
                article.Ben = "NO OBJECTS FOUND";
                SarticleList.Add(article);
            }
        }
        catch (Exception exp)
        {
            myConnection = null;
            throw exp;
        }
        finally
        {
            myConnection.Close();
            myDataReader.Close();
            myCommand = null;
        }
        return SarticleList.ToList();
    }

</code>
  </pre>
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