How to clear the clipboard contents using C#

I have an application where I am using the clipboard for copy and paste operations. For copying I have used this code:

Clipboard.Clear();
const byte VK_CONTROL = 0x11;
keybd_event(VK_CONTROL, 0, 0, 0);
keybd_event(0x43, 0, 0, 0); // Send the C key 开发者_运维技巧(43 is "C")
keybd_event(0x43, 0, CONST_KEYEVENTF_KEYUP, 0);
keybd_event(VK_CONTROL, 0, CONST_KEYEVENTF_KEYUP, 0);

But it's giving an error saying Unable to perform the clipboard action, and I am unable to paste it. It's throwing an exception.

How do I fix this issue or are there some other ways to clear the clipboard content before we copy?

Use:

Clipboard.SetText("some string");
Clipboard.GetText();

See the MSDN article Clipboard Class (System.Windows.Forms).

I have done it using Win32 API calls (EmptyClipboard function).

Clipboard.Clear()

MSDN

An easy way to clear the contents it to replace it with just a space character:

public static void Clear()
{
    Thread STAThread = new Thread(
                             delegate ()
                             {
                                 System.Windows.Forms.Clipboard.SetText(" ");
                             });

    STAThread.SetApartmentState(ApartmentState.STA);
    STAThread.Start();
    STAThread.Join();

}