记录在VBA和C＃

Question

考虑这个代码

Dim cn As New ADODB.Connection, cn2 As New ADODB.Connection 
         Dim rs As ADODB.Recordset 
         Dim connString As String 
         Dim SelectFieldName 

         Set cn = CurrentProject.Connection 
         SelectFieldName = astrFields(intIx) 
         Set rs = cn.OpenSchema(adSchemaColumns, _ 
         Array(Empty, Empty, Empty, SelectFieldName)) 

strsql = select field from rs!tablename 

现在我明白了，这将在VBA工作，通过获取表名，其中字段存在。

我只想知道这段代码的C＃等价物是什么？

Answer 1

Using System.Data.SqlClient; 

//////now use following codes to retrieve data////// 
String ConStr = "Data Source=localhost;Initial Catalog=Database Name;Integrated Security=True"; 
     SqlConnection sqlcnn; 
     SqlCommand sqlcmd; 
     SqlDataReader sqldr; 
     string plssql; 
plssql = "select field from table_name where condition"; 
     sqlcnn = new SqlConnection(ConStr); 
     sqlcnn.Open(); 
     sqlcmd = new SqlCommand(plssql, sqlcnn); 
     sqldr = sqlcmd.ExecuteReader(); 
String val=sqldr["field name"].ToString(); 
sqlcmd.Close(); 
sqlcnn.Close(); 

克里斯
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