A lot of time is spent on navigating in the HTML View of ASP.NET Pages that have too much HTML to find some little details. Visual Studio 2005 IDE provides
Learn how to handle all of the exceptions from your WPF applications in one place. Avoid writing Try/Catch blocks everywhere in your code unless you really need them. Please note:
Background errors may not reach the main thread unless they are queried for. One needs to use the Error Property of the RunWorkerCompletedEventArgs argument to determine if any errors have
There are cases in which you would need the Enter key to operate as the Tab key. In order for the Enter key to be used as a Tab key,
When working with an SQL Output parameters, you need to specify the parameter’s Direction property once you have created it. Here is a nice little example method: private float checkValue()
To get the text of an external window you could use the GetForegroundWindow and the GetWindowTextAPI functions. Here is a small example of its usage: public partial class Form1 :
The default designer that comes with the Web Controls is great but there are times when you might need to customize it. It’s pretty easy to do. You need to
A quick and dirty way to see if the application’s current platform is 64 Bit or 32 Bit is to test the size of the System.IntPtr variable, as shown in
The?best?way?to?copy?pictures?in?C#?is?most?probably?with?the?use?of?the?BitBlt?API.?Here?is?a?small?example?of?its?implementation: ????public?partial?class?Form1?:?Form ????{ ????????const?int?SRCCOPY?=?0xcc0020; ????????[System.Runtime.InteropServices.DllImportAttribute(“gdi32.dll”)] ????????private?static?extern?int?BitBlt( ??????????IntPtr?hdcDest,?????//?handle?to?destination?DC?(device?context) ??????????int?nXDest,?????????//?x-coord?of?destination?upper-left?corner ??????????int?nYDest,?????????//?y-coord?of?destination?upper-left?corner ??????????int?nWidth,?????????//?width?of?destination?rectangle ??????????int?nHeight,????????//?height?of?destination?rectangle ??????????IntPtr?hdcSrc,??????//?handle?to?source?DC ??????????int?nXSrc,??????????//?x-coordinate?of?source?upper-left?corner ??????????int?nYSrc,??????????//?y-coordinate?of?source?upper-left?corner ??????????System.Int32?dwRop??//?raster?operation?code ??????????); ????????public?Form1() ????????{ ????????????InitializeComponent(); ????????} ????????private?void?Form1_Paint(object?sender,?PaintEventArgs?e) ????????{ ????????????Graphics?g?=?e.Graphics; ????????????g.FillRectangle(Brushes.White,?ClientRectangle); ????????????g.DrawRectangle(Pens.Black,?10,?10,?40,?40); ????????????IntPtr?dc?=?g.GetHdc(); ????????????BitBlt(dc,?70,?0,?60,?60,?dc,?0,?0,?SRCCOPY); ????????????g.ReleaseHdc(dc); ????????} ????}