C# – Moving a control around on the UI

ccontrolsnet

We are developing in C#.Net. We are dynamically changing a .Net control's location based on mouse movement. The control moves on the screen as expected, but, if the mouse moved too quickly strange redraw issues occur. The issues include only viewing part of the control and it not being fully visible until mouse movement stops. This occurs on any .Net control. We have been testing with the .Net button control. Is there any specific calls that have to be made to ensure the control is always redrawn even if the mouse movement is very fast.

Best Answer

If it's WinForms you use, then check out the Control.DoubleBuffered property.

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C# – the difference between String and string in C#

string is an alias in C# for System.String.
So technically, there is no difference. It's like int vs. System.Int32.

As far as guidelines, it's generally recommended to use string any time you're referring to an object.

e.g.

string place = "world";

Likewise, I think it's generally recommended to use String if you need to refer specifically to the class.

e.g.

string greet = String.Format("Hello {0}!", place);

This is the style that Microsoft tends to use in their examples.

It appears that the guidance in this area may have changed, as StyleCop now enforces the use of the C# specific aliases.

C# – Calling the base constructor in C#

Modify your constructor to the following so that it calls the base class constructor properly:

public class MyExceptionClass : Exception
{
    public MyExceptionClass(string message, string extrainfo) : base(message)
    {
        //other stuff here
    }
}

Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your call in the constructor body.

Best Answer

Related Solutions

C# – the difference between String and string in C#

This is the style that Microsoft tends to use in their examples.

C# – Calling the base constructor in C#

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