dispose (bool): no suitable method found to override

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I keep trying to compile but I keep getting the error
'PTZ_Camera_Motion_Control01.Form1.Dispose(bool)':no suitable method found to override
I've been searching for answers on the web and tried them but the error still resides.
I'm using .NET Framework 4. The code is below. I'll really appreciate any help I can get on this. Thank you.

/////Form1.cs///////

C#

namespace PTZ_Camera_Motion_Control01
{
    public partial class Form1 : Form 
    { 
        public Form1()
        {
            InitializeComponent();
        }
    }
}

///////Form1.Designer.cs///////

C#

namespace PTZ_Camera_Motion_Control01
{
    partial class Form1
    {
        private System.ComponentModel.IContainer components = null;

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }
        private void InitializeComponent()
        { .....}
     }
}

Posted 9-Sep-15 16:22pm

Member 11972608

Updated 9-Sep-15 18:17pm

Sergey Alexandrovich Kryukov

v3

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Sergey Alexandrovich Kryukov 9-Sep-15 23:08pm

You are messing up something. Are you sure that "Form" in your sample is really System.Windows.Forms.Form? If so, it really has protected override void Dispose(bool).
By the way, what's the purpose of overriding this method?
—SA

Member 11972608 9-Sep-15 23:23pm

Yeah I'm sure it is System.Windows.Forms.Form. I even tried replacing Form with System.Windows.Forms.Form to make sure. But still got the same error.
I'm using Dispose is to free unmanaged resources. It needs to be done at some point, otherwise they will never be cleaned up.

Sergey Alexandrovich Kryukov 10-Sep-15 0:14am

Then your information is inadequate; maybe the compilation error is in some different line, or the code shown is not the same code which shows the error. You did not even comment the code line. You don't show adequate part of code, for example, did not show "using". Comment it: "the error is on this line"... Is it really in the code generated by the designer? Please understand: the error is way too trivial to make a problem, and is fixed in one second, but only if it is reported properly.
—SA

Philippe Mori 10-Sep-15 12:51pm

Well, there are many valid reason to modify this method. Ideally, Microsoft should have add a call to a partial method here so that we don't have to modify that compiler generated file.

I often add a partial void PreDispose() method when I want to do some extra cleanup (mostly either unhook events handlers or closing files or databases that are associated with a particular child Windows (tabbed MDI in my case).

Sergey Alexandrovich Kryukov 10-Sep-15 13:09pm

Oh yes, of course, no doubt at all. I only tried to collect some information. As I say, with a full project, the "issue" could be a problem solved in a second. Something is messed up here; I cannot even trust than the code fragment shown is the same as in the real project.
—SA

Suvabrata Roy 10-Sep-15 0:55am

Just copy paste the error text, then we may found the exact reason.

Member 11972608 10-Sep-15 4:50am

The error text is:
PTZ_Camera_Motion_Control01.Form1.Dispose(bool)':no suitable method found to override

The error is coming from Form1.Designer.cs in the line which says:
protected override void Dispose(bool disposing)

The word DISPOSE is underlined in blue.
Is this enough info for you?

Philippe Mori 10-Sep-15 12:45pm

Are you sure that Form1.cs is included in your project?

Given that not enough information is provided, it is hard to help you. One way to fix that problem if you don't have any idea is to start a new form and then copy and paste code or use it to find what you have done so it does not works anymore.

The designer generate a method that compile when a new form is created. If it doesn't compile anymore, it is because you have made an improper change...

Sergey Alexandrovich Kryukov 10-Sep-15 23:18pm

Right. I doubt that the code shown is really the code referenced in the project file. It could be just some mess with files, not "real" code.
—SA

Member 11972608 14-Sep-15 22:55pm

Error: PTZ_Camera_Motion_Control01.Form1.Dispose(bool)':no suitable method found to override Form1.Designer.cs line 7 column 33

////Form1.cs//////
#if Ozeki
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Text;
using Ozeki.Media.MediaHandlers.Video;
using Ozeki.Media.Video.Controls;
using Ozeki.Media.MediaHandlers;
using Ozeki.Media.MediaHandlers.IPCamera;
using Ozeki.Media.MediaHandlers.IPCamera.Types;
using Ozeki.Media.IPCamera;
using Ozeki.Media.IPCamera.PTZ;

namespace PTZ_Camera_Motion_Control01
{
public partial class Form1 : System.Windows.Forms.Form
{
private IIPCamera _camera;
private DrawingImageProvider _imageProvider;
private MediaConnector _connector;
private VideoViewerWF _videoViewerWf;

public Form1()
{
InitializeComponent();
_imageProvider = new DrawingImageProvider();
_connector = new MediaConnector();
_videoViewerWf = new VideoViewerWF();
SetVideoViewer();
}

private void SetVideoViewer()
{
CameraBox.Controls.Add(_videoViewerWf);
_videoViewerWf.Size = new Size(260, 180);
_videoViewerWf.BackColor = Color.Black;
_videoViewerWf.TabStop = false;
_videoViewerWf.Location = new Point(14, 19);
_videoViewerWf.Name = "_videoViewerWf";
}

private void button_Connect_Click(object sender, EventArgs e)
{
_camera = IPCameraFactory.GetCamera("192.168.115.175:8080", "admin", "admin");
_connector.Connect(_camera.VideoChannel, _imageProvider);
_videoViewerWf.SetImageProvider(_imageProvider);
_videoViewerWf.Start();
_camera.Start();
}

private void MouseDownMove(object sender, MouseEventArgs e)
{
var button = sender as Button;
if (button != null) Move(button.Text);
}

private void MouseUpMove(object sender, MouseEventArgs e)
{
_camera.CameraMovement.StopMovement();
}

private void Move(string direction)
{
if (_camera == null) return;
switch (direction)
{
case "Up Left":
_camera.CameraMovement.ContinuousMove(MoveDirection.LeftUp);
break;
case "Up":
_camera.CameraMovement.ContinuousMove(MoveDirection.Up);
break;
case "Up Right":
_camera.CameraMovement.ContinuousMove(MoveDirection.RightUp);
break;
case "Left":
_camera.CameraMovement.ContinuousMove(MoveDirection.Left);
break;
case "Right":
_camera.CameraMovement.ContinuousMove(MoveDirection.Right);
break;
case "Down Left":
_camera.CameraMovement.ContinuousMove(MoveDirection.LeftDown);
break;
case "Down":
_camera.CameraMovement.ContinuousMove(MoveDirection.Down);
break;
case "Down Right":
_camera.CameraMovement.ContinuousMove(MoveDirection.RightDown);
break;
case "In":
_camera.CameraMovement.Zoom(ZoomDirection.In);
break;
case "Out":
_camera.CameraMovement.Zoom(ZoomDirection.Out);
break;
}
}
}
}
#endif

Member 11972608 14-Sep-15 22:56pm

/////Form1.Designer.cs/////
namespace PTZ_Camera_Motion_Control01
{
partial class Form1
{
private System.ComponentModel.IContainer components = null;

protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}

private void InitializeComponent()
{
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.button_Connect = new System.Windows.Forms.Button();
this.CameraBox = new System.Windows.Forms.GroupBox();
this.CameraMoveBox = new System.Windows.Forms.GroupBox();
this.buttonDownRight = new System.Windows.Forms.Button();
this.buttonRight = new System.Windows.Forms.Button();
this.buttonUpRight = new System.Windows.Forms.Button();
this.buttonDown = new System.Windows.Forms.Button();
this.buttonUp = new System.Windows.Forms.Button();
this.buttonDownLeft = new System.Windows.Forms.Button();
this.buttonLeft = new System.Windows.Forms.Button();
this.buttonUpLeft = new System.Windows.Forms.Button();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.button_ZoomOut = new System.Windows.Forms.Button();
this.button_ZoomIn = new System.Windows.Forms.Button();
this.groupBox1.SuspendLayout();
this.CameraMoveBox.SuspendLayout();
this.groupBox2.SuspendLayout();
this.SuspendLayout();
//
// groupBox1
//
this.groupBox1.Controls.Add(this.button_Connect);
this.groupBox1.Location = new System.Drawing.Point(10, 10);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(100, 60);
this.groupBox1.TabIndex = 0;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "Connect";
//
// button_Connect
//
this.button_Connect.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(238)));
this.button_Connect.ForeColor = System.Drawing.Color.Black;
this.button_Connect.Location = new System.Drawing.Point(10, 20);
this.button_Connect.Name = "button_Connect";
this.button_Connect.Size = new System.Drawing.Size(75, 25);
this.button_Connect.TabIndex = 6;
this.button_Connect.Text = "Connect";
this.button_Connect.UseVisualStyleBackColor = true;
this.button_Connect.Click += new System.EventHandler(this.button_Connect_Click);
//
// CameraBox
//
this.CameraBox.Location = new System.Drawing.Point(10, 90);
this.CameraBox.Name = "CameraBox";
this.CameraBox.Size = new System.Drawing.Size(290, 210);
this.CameraBox.TabIndex = 3;
this.CameraBox.TabStop = false;
this.CameraBox.Text = "Live camera ";
//
// CameraMoveBox
//
this.CameraMoveBox.Controls.Add(this.buttonDownRight);
this.CameraMoveBox.Controls.Add(this.buttonRight);
this.CameraMoveBox.Controls.Add(this.buttonUpRight);
this.CameraMoveBox.Controls.Add(this.buttonDown);
this.CameraMoveBox.Controls.Add(this.buttonUp);
this.CameraMoveBox.Controls.Add(this.buttonDownLeft);
this.CameraMoveBox.Controls.Add(this.buttonLeft);
this.CameraMoveBox.Controls.Add(this.buttonUpLeft);
this.CameraMoveBox.Location = new System.Drawing.Point(10, 300);
this.CameraMoveBox.Name = "CameraMoveBox";
this.CameraMoveBox.Size = new System.Drawing.Size(290, 115);

Member 11972608 14-Sep-15 22:57pm

////// the rest of Form1.Designer.cs///////
this.CameraMoveBox.TabIndex = 4;
this.CameraMoveBox.TabStop = false;
this.CameraMoveBox.Text = "Control";
//
// buttonDownRight
//
this.buttonDownRight.Location = new System.Drawing.Point(205, 80);
this.buttonDownRight.Name = "buttonDownRight";
this.buttonDownRight.Size = new System.Drawing.Size(75, 25);
this.buttonDownRight.TabIndex = 7;
this.buttonDownRight.Text = "Down Right";
this.buttonDownRight.UseVisualStyleBackColor = true;
this.buttonDownRight.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonDownRight.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonRight
//
this.buttonRight.Location = new System.Drawing.Point(205, 50);
this.buttonRight.Name = "buttonRight";
this.buttonRight.Size = new System.Drawing.Size(75, 25);
this.buttonRight.TabIndex = 6;
this.buttonRight.Text = "Right";
this.buttonRight.UseVisualStyleBackColor = true;
this.buttonRight.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonRight.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonUpRight
//
this.buttonUpRight.Location = new System.Drawing.Point(205, 20);
this.buttonUpRight.Name = "buttonUpRight";
this.buttonUpRight.Size = new System.Drawing.Size(75, 25);
this.buttonUpRight.TabIndex = 5;
this.buttonUpRight.Text = "Up Right";
this.buttonUpRight.UseVisualStyleBackColor = true;
this.buttonUpRight.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonUpRight.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonDown
//
this.buttonDown.Location = new System.Drawing.Point(105, 80);
this.buttonDown.Name = "buttonDown";
this.buttonDown.Size = new System.Drawing.Size(75, 25);
this.buttonDown.TabIndex = 4;
this.buttonDown.Text = "Down";
this.buttonDown.UseVisualStyleBackColor = true;
this.buttonDown.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonDown.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonUp
//
this.buttonUp.Location = new System.Drawing.Point(105, 20);
this.buttonUp.Name = "buttonUp";
this.buttonUp.Size = new System.Drawing.Size(75, 23);
this.buttonUp.TabIndex = 3;
this.buttonUp.Text = "Up";
this.buttonUp.UseVisualStyleBackColor = true;
this.buttonUp.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonUp.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonDownLeft
//
this.buttonDownLeft.Location = new System.Drawing.Point(10, 80);
this.buttonDownLeft.Name = "buttonDownLeft";
this.buttonDownLeft.Size = new System.Drawing.Size(75, 25);
this.buttonDownLeft.TabIndex = 2;
this.buttonDownLeft.Text = "Down Left";
this.buttonDownLeft.UseVisualStyleBackColor = true;
this.buttonDownLeft.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDownMove);
this.buttonDownLeft.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUpMove);
//
// buttonLeft
//
this.buttonLeft.Location = new Sy

Member 11972608 14-Sep-15 22:57pm

///////Program.cs//////
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace PTZ_Camera_Motion_Control01
{
static class Program
{
///

/// The main entry point for the application.
///

[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}

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Mr.PoorEnglish · Answer 1 · 2015-09-16T03:24:00

sorry, i don't know, whether the problem is already solved. if so, ignore me.

To me it seems, you try to override void Dispose(bool), to perform some action.
That is not scheduled, since the Designer-Code already did override it.

A usual approach is to subscribe the Form.Disposed-Event, to perform some action in the moment, when the form gets disposed.