How to crop an image using C#?
You can use Graphics.DrawImage to draw a cropped image onto the graphics object from a bitmap.
c#
Invalid attempt to read when no data is present
You have to call DataReader.Read to fetch the result: DataReader.Read() returns a bool indicating if there are more blocks of data to read, so if you have more than 1 result, you can do:
How to resolve file being used by another process?
There are a bunch of questions on SO related to this, all with suggestions and recommendations for solving the issue. For me, none worked until I found this one. In short, if it’s the System Process locking the file, and you have the Application Experience service stopped, restart it. Seriously.
How do I fix a .NET windows application crashing at startup with Exception code: 0xE0434352?
0xE0434352 is the exception code for all .NET exceptions so that won’t tell you much. How did you got this exception code? The event log? Your best bet is to use a debugger to get more information. If the Visual Studio debugger won’t help you, then you might need to check out WinDbg with SOS. … Read more
C# conditional operator error Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement
The conditional operator is an expression, not a statement, that means it cannot stand alone, as the result has to be used somehow. In your code, you don’t use the result, but try to produce side effects instead. Depending on the condition before the ? the operator returns the result of either the first or … Read more
What is a quick way to force CRLF in C# / .NET?
This will work if the input contains only one type of line breaks – either CR, or LF, or CR+LF.
Draw Rectangle in XNA using SpriteBatch
Your texture doesn’t have any data. You need to set the pixel data:
Which passwordchar shows a black dot (•) in a winforms textbox?
You can use this one: ● You can type it by holding Alt and typing 25CF. Alternately, you may use this smaller one: • You can type it by holding Alt and typing 2022.
Convert SQL to LINQ Query
Have you tried Linqer http://www.sqltolinq.com An SQL-> LINQ converter.. Or LINQPad http://www.linqpad.net/
How can I delete a file that is in use by another process?
There is no way to delete a file that’s currently being used by another process. You have to close whatever program has that file open first, before you can delete it. If you don’t already know which program that is, you can figure it out using Handle or Process Explorer.