有兩個表A和B,兩表結構相同。現在需要將A表中部分行拷貝到B表中。如果我們直接用 DataTableB.rows.add(dataTableA.rows[0]) 這樣的方法式會報"row已經屬於A表"這樣的錯誤。所以我們可以用另外的方法。方法1,使用dataTable.ImportRow()方法。代碼如下:Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-
本文轉自http://www.codeproject.com/KB/miscctrl/Vertical_Label_Control.aspx A custom vertical label user control in C#.NET with support for transparent backgrounds. Download demo - 17.1 KBDownload source code - 7.76 KBIntroductionThis article describes
本文轉自http://www.codeproject.com/KB/miscctrl/first_control.aspx A very simple introduction to writing your first .NET control Download source files - 1 KbIntroductionThis is an extremely simple introduction to creating a control, adding methods and
本文轉自http://www.codeproject.com/KB/buttons/VistaButton.aspx A Vista style button in .NET 1.1 Download demo project - 70.65 KB Download source files - 86.85 KB ContentsIntroduction Code Using the Code Future Development History IntroductionI have a
本文轉自http://www.codeproject.com/KB/miscctrl/signalstrengthcontrol.aspx Download source - 46.13 KB IntroductionThis is a relatively simple control that illustrates some of the techniques used in developing custom controls. We will look at the way we
Windows Service這一塊並不複雜,但是注意事項太多了,網上資料也很淩亂,偶爾自己寫也會丟三落四的。所以本文也就產生了,本文不會寫複雜的東西,完全以基礎應用的需求來寫,所以不會對Windows Service寫很深入。本文介紹了如何用C#建立、安裝、啟動、監控、卸載簡單的Windows Service 的內容步驟和注意事項。一、建立一個Windows Service1)建立Windows
public static unsafe void GrayscaleImage(BitmapData sourceImage, IntPtr destBuffer) { int width = sourceImage.Width; int height = sourceImage.Height; // do the job var src = (byte*)
剛剛學習了同事編寫的在窗體中打開圖片的代碼,自己也試著做了一例子,以利於學習。例子如下: 在下列圖片框中雙擊PictureBox插入圖片,並下圖片下方顯示圖片資訊。如下圖結果。代碼如下:Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->using System.IO;namespace newTest{ public partial class