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Form Control Properties in Partial Class

I try to make some form control like Minimize, Exit and drag form but seems not work. I think the problem with partial class but after searching, I can't find solution to make this work.

Note: I can't remove namespace and partial for some reason. What must I change, maybe declare etc?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net.Sockets;
using System.Net;

namespace test
{
public partial class Form1 : Form
{
public Form1()

InitializeComponent();


//Minimize (Not Work)
private void Form1_Resize(object sender, EventArgs e)

if (FormWindowState.Minimized == this.WindowState)

notifyTray.Visible = true;
notifyTray.ShowBalloonTip(500);
this.Hide();


else if (FormWindowState.Normal == this.WindowState)

notifyTray.Visible = false;



//Exit (Not Work)
private void Form1_FormClosing(object sender, FormClosingEventArgs e)

var window = MessageBox.Show("Wanna Close?", "Warning", MessageBoxButtons.YesNo);
if (window == DialogResult.No) e.Cancel = true;
else e.Cancel = false;


//Drag (Not Work)
public bool _dragging = false;
public Point _offset;
public Point _start_point = new Point(0, 0);

void Form1_MouseDown(object sender, MouseEventArgs e)

_dragging = true; // _dragging is your variable flag
_start_point = new Point(e.X, e.Y);


void Form1_MouseUp(object sender, MouseEventArgs e)

_dragging = false;


void Form1_MouseMove(object sender, MouseEventArgs e)

if (_dragging)

Point p = PointToScreen(e.Location);
Location = new Point(p.X - this._start_point.X, p.Y - this._start_point.Y);




In VB that code works fine.

3 Answers
3

What Tony means is that in the Designer of your form you hook the handlers such as

this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.FormClosing);


and this is where it's hooked.The problem is that probably you have it defined in several files (or didn't hook them).

Try to put the class in a different namespace and check if your InitializeComponent goes to the designer where you put the hooked functions.

InitializeComponent

The "partial" keyword indicates that the code for a class can be found in multiple files. The forms designer in Visual Studio automatically creates a Form1.Designer.cs class where it puts the code to create controls you dragged onto the form.

Form1.Designer.cs

partial

Form1

Form1.Designer.cs

Form1.cs

InitializeComponent()

(Posted a solution on behalf of the question author)

Thank you for @Tony for point me. I need to add event handler manually in C# like

this.Closing += Form1_FormClosing; //for close button


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