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觀察LINQ to SQL DataContext的連線開啟時機
昨天的文章 發表後，有兩位網友提到了DataContext是否要加using的議題。 我接觸LINQ to SQL是由Scott Gu的 這幾篇文章 開始入門的，在他的範例中沒有特別提到using，我也自始就忽略DataContext有實做IDispose這件事。雖然用using包住絕對有益無害(只要小心using中間過程如將DataContext傳到外部，要留意using結束後外部就不可再繼續叫用)，但我倒認為DataContext裡的Connection應該不是一new DataContext就建立一條連線不放...
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最新回應
2018-09-20 接手老專案的菜鳥
Windows 停用 TLS 1.0 之配套作業整理
黑大，謝謝您!
2018-09-20 Andy
KO範例6 - 陣列元素的新增/移除事件
Dear 黑暗大 感謝您，已成功將count後的數值寫入資料庫 利用您提供的方法...
2018-09-19 Jeffrey
KO範例6 - 陣列元素的新增/移除事件
to Andy, 如果你 ASP.NET 端是用 PostBack 方式取值，最簡單的做法是將...
2018-09-19 Andy
KO範例6 - 陣列元素的新增/移除事件
Dear 黑暗大 您好 我設計一個網頁，裡面有一些TextBox，其中還有如此範例的動態表格...
2018-09-18 Jeffrey
Windows 停用 TLS 1.0 之配套作業整理
to 接手老專案的菜鳥, support.microsoft.com/.../support...
2018-09-18 接手老專案的菜鳥
Windows 停用 TLS 1.0 之配套作業整理
黑大： 我有個系統是.NET 2.0開發的，如果安裝了.NET 4.5/或者4.6以及ADO...
2018-09-17 Jeffrey
CODE - WebClient 下載檔案自動取得檔名
to Slash, 感謝提醒，程式已修改強化。
2018-09-16 Slash
CODE - WebClient 下載檔案自動取得檔名
雖然與你分享這段小程式的目的不同，但還是要提醒Regex.Split這邊會有RFC5987的問題...
2018-09-06 打雜工程師
ASP.NET Core 值得學嗎？
黑大，我再跟BOSS討論看看，謝謝您^^
2018-09-03 Jeffrey
ASP.NET Core 值得學嗎？
to 打雜工程師, 1) 如果系統上線時程吃緊且不容閃失，用 ASP.NET MVC...
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有為的中年人
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