/// <summary>
/// 用鼠标拖动Panel
/// </summary>
public class MovePanel : Panel
{
private bool whetherSelected = false;
private Point p = new Point();
public bool WhetherSelected
{
get { return whetherSelected; }
}
/// <summary>
/// 重写，设置绘制
/// </summary>
protected override void OnCreateControl()
{
base.OnCreateControl();
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.DoubleBuffer, true);
}
/// <summary>
/// OnMouseDown
/// </summary>
/// <param name="e"></param>
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
whetherSelected = true;
p.X = Cursor.Position.X;
p.Y = Cursor.Position.Y;
}
/// <summary>
/// OnMouseMove
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (whetherSelected == true)
{
if (this.IsParentMove)
{
this.Parent.Left = this.Parent.Left + (Cursor.Position.X - p.X);
this.Parent.Top = this.Parent.Top + (Cursor.Position.Y - p.Y);
}
else
{
this.Left = this.Left + (Cursor.Position.X - p.X);
this.Top = this.Top + (Cursor.Position.Y - p.Y);
}
p.X = Cursor.Position.X;
p.Y = Cursor.Position.Y;
}
}
/// <summary>
/// OnMouseUp
/// </summary>
/// <param name="e"></param>
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
whetherSelected = false;
this.BringToFront();
}
private bool _IsParentMove = false;
/// <summary>
/// 是否移动父控件
/// </summary>
public bool IsParentMove
{
get { return _IsParentMove; }
set { _IsParentMove = value; }
}
}
case when 示例 统计数量，经测试正常
select
(case
when isn %2=0 then '自办营业厅'
else
'bb自办营业厅'
end
) as b,
COUNT(*)
from jb_zjm
group by
(case
when isn %2=0 then '自办营业厅'
else
'bb自办营业厅'
end
)