try to add this function to your UserControl class:protected override bool IsInputKey(Keys key)
{
switch(key)
{
case Keys.Up:
case Keys.Down:
case Keys.Right:
case Keys.Left:
return true;
}
return base.IsInputKey(key);
}
{
switch(key)
{
case Keys.Up:
case Keys.Down:
case Keys.Right:
case Keys.Left:
return true;
}
return base.IsInputKey(key);
}
System.Windows.Forms.Keys 枚举