C# – How to avoid blinking in Form.Invalidate()

cinvalidation

I'm using f.Invalidate() to repaint graphics in my C# program but the graphic blinks as it refreshes. I'm also using e.Graphics.DrawImage() inside the f_Paint() method.

Best Answer

You need to set DoubleBuffered to true.

Since it's a protected property, you'll need to make your own control:

class Canvas : Control {
    public Canvas() { DoubleBufferred = true; }
}

Related Solutions

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

C# – How to enumerate an enum

foreach (Suit suit in (Suit[]) Enum.GetValues(typeof(Suit)))
{
}

Note: The cast to (Suit[]) is not strictly necessary, but it does make the code 0.5 ns faster.

Best Answer

Related Solutions

C# – How to cast int to enum

C# – How to enumerate an enum

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