Click the button to drag the form

 

Public partial class Form1: Form {

// Record the X coordinate of the form

Private int startX;

// Record the Y coordinate of the form

Private int startY;

 

Public Form1 (){

InitializeComponent ();

}

/// <Summary>

/// Left click

/// </Summary>

/// <Param name = "sender"> </param>

/// <Param name = "e"> </param>

Private void button#mousedown (object sender, MouseEventArgs e ){

// Determine if the clicked button is left

If (e. Button = MouseButtons. Left ){

// Obtain the X value of the form.

StartX = e. X;

// Obtain the Y value of the form.

StartY = e. Y;

}

}

/// <Summary>

/// Move the mouse

/// </Summary>

/// <Param name = "sender"> </param>

/// <Param name = "e"> </param>

Private void button=mousemove (object sender, MouseEventArgs e ){

// Determine if the clicked button is left

If (e. Button = MouseButtons. Left ){

// Redraw form X

This. Left + = e. X-startX;

// Redraw form Y

This. Top + = e. Y-startY;

}

}

}

 

From: happy pig's column