C#的这个功能是怎么实现的???(也许很多人都想知道)

[编程爱好者L]

我们在电脑上鼠标点击一拖动就可以选择多个文件夹,从而进行改变它们的位置.最近做项目就碰到了这个问题,我的窗体上放了几个按钮,运行时我如何鼠标点击拖动就能选择他们,从而对这几个按钮进行拖动.这个问题我已经找了很久了,都没有眉目,我以前是做B/S的,现在在做C/S,对于winform还是知道得少,请大家说说...

[josxhn]

drag打头的方法，看看msdn吧

[gongsun]

...

[编程爱好者L]

[Quote=引用 3 楼 vampire_ycq 的回复:]

把鼠标点击下的位置和鼠标松开的位置结合，看看那些按钮是不是在这个范围内，如果在 看看你鼠标 X , Y 移动了多少距离，再把那些按钮的距离 改变。
[/Quote]
这种方法是不是太麻烦了,而且代码量很多啊

[编程爱好者L]

[Quote=引用 4 楼 josxhn 的回复:]

drag打头的方法，看看msdn吧
[/Quote]
drag打头是什么意思啊 ,能详细点吗

[ZengHD]

MouseMove

[kj289907795]

顶下！！

[编程爱好者L]

继续期待高手的到来.....

[编程爱好者L]

哥们不要走啊,回来说清楚点啊,很需要各位的帮助.........

[xiangma04]

[Quote=引用 2 楼 xzjxylophone 的回复:]
DragMove 事件，记录当前鼠标的位置， 然后 把button 的位置重新布局一下， 在winform 上 重绘下 该button
[/Quote]

正解

[vip__888]

....

[编程爱好者L]

private Point ptMouseCurrrnetPos, ptMouseNewPos,
  ptFormPos, ptFormNewPos;
  private bool blnMouseDown = false;
  private ExcelTreatment.ExcelSelect pParent;
  private void frmTopMost_Load(object sender, EventArgs e)
  {
  this.Show();
  this.Top = 100;
  this.Left = Screen.PrimaryScreen.Bounds.Width - 100;
  this.Width = 60;
  this.Height = 60;
  }
  private void frmTopMost_MouseMove(object sender, MouseEventArgs e)
  {
  if (blnMouseDown)
  {
  //Get the current position of the mouse in the screen
  ptMouseNewPos = Control.MousePosition;
  //Set window position
  ptFormNewPos.X = ptMouseNewPos.X - ptMouseCurrrnetPos.X + ptFormPos.X;
  ptFormNewPos.Y = ptMouseNewPos.Y - ptMouseCurrrnetPos.Y + ptFormPos.Y;
  //Save window position
  Location = ptFormNewPos;
  ptFormPos = ptFormNewPos;
  //Save mouse position
  ptMouseCurrrnetPos = ptMouseNewPos;
  }  
  }
private void frmTopMost_MouseDown(object sender, MouseEventArgs e)
  {
  if (e.Button == MouseButtons.Left)
  {
  blnMouseDown = true;
  // Save window position and mouse position
  ptMouseCurrrnetPos = Control.MousePosition;
  ptFormPos = Location;
  }
  }
  private void frmTopMost_MouseUp(object sender, MouseEventArgs e)
  {
  if (e.Button == MouseButtons.Left)
  //Return back signal
  blnMouseDown = false;
  }
  private void frmTopMost_DoubleClick(object sender, EventArgs e)
  {
  SwitchToMain();
  }
  private System.Windows.Forms.ContextMenu mnuPopup;
 private System.Windows.Forms.MenuItem mnuMainWindow;
  private System.Windows.Forms.MenuItem mnuExit;
  private void mnuMainWindow_Click(object sender, System.EventArgs e)
  {
  SwitchToMain();
  }
  private void mnuExit_Click(object sender, System.EventArgs e)
  {
  Application.Exit();
  }

[编程爱好者L]

这个是什么样的效果..谢谢大家了,我想我可以实现了.

[yanele]

这个功能的确不错，期待正解！

[编程爱好者L]

[Quote=引用 26 楼 51crack 的回复:]

VB.NET code

Dim vObj As Control
For Each vObj In Me.Controls
'自己加条件，只处理按钮
AddHandler vObj.MouseDown, AddressOf Control_Down
AddHandler vObj.MouseMove, AddressOf Control_Move
Next

Private ……
[/Quote]
VB的代码,C#里面好像没有CType吧?

[ptlive1001]

....

[xishi444]

把鼠标点击下的位置和鼠标松开的位置结合

[编程爱好者L]

难道真的要遍历来判断一个按钮是否在这个选中的矩形区域中...

[lucky_yyx]

private Point ptMouseCurrrnetPos, ptMouseNewPos,

ptFormPos, ptFormNewPos;

private bool blnMouseDown = false;

private ExcelTreatment.ExcelSelect pParent;

private void frmTopMost_Load(object sender, EventArgs e)
{
this.Show();

this.Top = 100;

this.Left = Screen.PrimaryScreen.Bounds.Width - 100;

this.Width = 60;

this.Height = 60;


}

private void frmTopMost_MouseMove(object sender, MouseEventArgs e)
{
if (blnMouseDown)
{

//Get the current position of the mouse in the screen

ptMouseNewPos = Control.MousePosition;



//Set window position

ptFormNewPos.X = ptMouseNewPos.X - ptMouseCurrrnetPos.X + ptFormPos.X;

ptFormNewPos.Y = ptMouseNewPos.Y - ptMouseCurrrnetPos.Y + ptFormPos.Y;



//Save window position

Location = ptFormNewPos;

ptFormPos = ptFormNewPos;



//Save mouse position

ptMouseCurrrnetPos = ptMouseNewPos;

}


}

[lucky_yyx]

private void frmTopMost_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{

blnMouseDown = true;



// Save window position and mouse position

ptMouseCurrrnetPos = Control.MousePosition;

ptFormPos = Location;

}


}

private void frmTopMost_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)

//Return back signal

blnMouseDown = false;


}

private void frmTopMost_DoubleClick(object sender, EventArgs e)
{
SwitchToMain();

}
private System.Windows.Forms.ContextMenu mnuPopup;

private System.Windows.Forms.MenuItem mnuMainWindow;

private System.Windows.Forms.MenuItem mnuExit;
private void mnuMainWindow_Click(object sender, System.EventArgs e)
{

SwitchToMain();

}



private void mnuExit_Click(object sender, System.EventArgs e)
{

Application.Exit();

}

[lucky_yyx]

2个连在一起 就可以了 里面有Most_MouseUp MouseDown MouseMove的使用方法