从C＃中的OleDbDataReader获取重试记录数？

Question

我想从 C＃中的OleDbDataReader获取检索到的记录数？

strQuery = "SELECT * FROM Table_Name" ;                   
    dbCommand = new OleDbCommand(strQuery, dbConnection);
    dbReader = dbCommand.ExecuteReader();
    //Now how to get RowCount from the Table after this.

感谢任何帮助。

感谢。

Answer 1

更多详情：Get row count by 'ExecuteScalar'

使用ExecuteSclar()而不是read功能。

SqlCommand cmd = new SqlCommand("SELECT count(*) FROM " + Table_Name, conn);
    try
    {
        conn.Open();
        int total = (Int32)cmd.ExecuteScalar();
    }

Answer 2

您可以将查询更改为：

strQuery = "SELECT count(*) as RowCount, * FROM " + Table_Name;

这将允许您检索行数，如：

dbReader.Read();
var rowCount = (int)dbRead["RowCount"];

Answer 3

这样做会有，但可能有更好的方法：

int i = 0;
While (dbReader.Read()){
   i++;
}