2012-03-27 92 views
0

我想檢索保存爲數據庫中的斑點數據的圖像。我怎樣才能得到它並將其保存到圖像/位圖對象中?圖像類型的斑點存儲

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檢查這個問題 http://stackoverflow.com/questions/9652634/c-sharp-reading-blob-from -sql-server-and-display-to-picture-box – Habib 2012-03-27 12:55:53

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什麼數據庫? SQL Server,Oracle,MySQL? – CAbbott 2012-03-27 12:56:52

回答

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using (SqlConnection conn = new SqlConnection(...)) 
{ 
    conn.Open(); 

    using (SqlCommand cmd = new SqlCommand("SELECT BlobFieldName FROM Table ...", conn); 
    using (SqlDataReader reader = cmd.ExecuteReader()) 
    { 
     if (reader.Read()) 
     { 
      byte[] bytes = reader["BlobFieldName"] as byte[]; 

      using (FileStream stream = new FileStream(...)) 
      { 
       stream.Write(bytes, 0, bytes.Length); 
       stream.Flush(); 
      } 
     } 
    } 
} 

這就是我要開始的。當然,錯誤檢查在這裏是不存在的,我不保證能立即編譯:-)