C# Discussion Boards - CodeProject

17-Mar-07 17:20

I am trying to add a tool bar using ToolStrip. When I run my application, the tool bar is correctly display, but once I get an OnPaint, I get red box with an X through it where the tool bar should reside. Here is my code.

ToolStrip toolStrip = new ToolStrip();
toolStrip.Parent = this;

ToolStripButton toolStripFileOpen = new ToolStripButton("Open", new Bitmap("openHS.png"), new EventHandler(MenuFileOpenOnClick), "Open");
ToolStripButton toolStripFileSave = new ToolStripButton("Save", new Bitmap("saveHS.png"), new EventHandler(MenuFileSaveOnClick), "Save");

toolStripFileOpen.DisplayStyle = ToolStripItemDisplayStyle.Image;
toolStripFileSave.DisplayStyle = ToolStripItemDisplayStyle.Image;

ToolStripSeparator toolStripSeparator = new ToolStripSeparator();

toolStrip.Items.Add(toolStripFileOpen);
toolStrip.Items.Add(toolStripFileSave);
toolStrip.Items.Add(toolStripSeparator);

Controls.Add(toolStrip);

Christian Graus17-Mar-07 18:28

Christian Graus

17-Mar-07 18:28

Sounds like when you run it, it cannot file those png files. I'd suggest making them resources inside your program, or at least, copy them to the debug/release directories.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Neal Conrardy18-Mar-07 5:43

18-Mar-07 5:43

The png files belonged to the project and were made an "Embedded Resource" so I don't think that is the problem. The funny thing is they are displayed fine until I get an OnPaint. I am missing something but I can't find a good reference on ToolStrip.

Neal Conrardy18-Mar-07 6:34

18-Mar-07 6:34

Here is an update. I used the auto stuff in .NET for making a form and got the same results. It seems the OnPaint for the client area is being called for the ToolStrip. I just assumed ToolStrip would have it's on OnPaint method.

Here is my entire constructor. I am a fairly new to the C# stuff and this is my learning program. I did not want to use the auto stuff in .NET until I made an application by "hand".

public GLA()
{
Text = "GLA";
programName = Text;

BackColor = SystemColors.Window;
ForeColor = SystemColors.WindowText;
ResizeRedraw = true;

Icon = new Icon(GetType(), "GLA.ico");

// Status bar.

statusBarPanel = new StatusBarPanel();
statusBarPanel.AutoSize = StatusBarPanelAutoSize.Contents;

statusBar = new StatusBar();
statusBar.Parent = this;
statusBar.ShowPanels = true;

statusBar.Panels.Add(statusBarPanel);

// Tool bar.

ToolStrip toolStrip = new ToolStrip();

ToolStripButton toolStripFileOpen = new ToolStripButton("Open", new Bitmap("openHS.png"), new EventHandler(MenuFileOpenOnClick), "Open");
ToolStripButton toolStripFileSave = new ToolStripButton("Save", new Bitmap("saveHS.png"), new EventHandler(MenuFileSaveOnClick), "Save");

toolStripFileOpen.DisplayStyle = ToolStripItemDisplayStyle.Image;
toolStripFileSave.DisplayStyle = ToolStripItemDisplayStyle.Image;

ToolStripSeparator toolStripSeparator = new ToolStripSeparator();

toolStrip.Items.Add(toolStripFileOpen);
toolStrip.Items.Add(toolStripFileSave);
toolStrip.Items.Add(toolStripSeparator);

Controls.Add(toolStrip);

// Menus.

menu = new MenuStrip();

menuFile = new ToolStripMenuItem("&File" );

menuFileOpen = new ToolStripMenuItem("&Open..." , new Bitmap("openHS.png"), new EventHandler(MenuFileOpenOnClick ), Keys.Control | Keys.O);
menuFileSave = new ToolStripMenuItem("&Save" , new Bitmap("saveHS.png"), new EventHandler(MenuFileSaveOnClick ), Keys.Control | Keys.S);
menuFileSaveAs = new ToolStripMenuItem("Sa&ve As..." , null , new EventHandler(MenuFileSaveAsOnClick), Keys.Control | Keys.V);
menuFileExit = new ToolStripMenuItem("&Exit" , null , new EventHandler(MenuFileExitOnClick ), Keys.Control | Keys.E);

menuHelp = new ToolStripMenuItem("&Help" );
menuHelpAbout = new ToolStripMenuItem("&About" , new Bitmap("GLA.ico" ), new EventHandler(MenuHelpAboutOnClick ), Keys.Control | Keys.A);

menuSeparator = new ToolStripSeparator();

menuFileOpen .AutoToolTip = true; menuFileOpen .ToolTipText = "Open a file to edit or view" ;
menuFileSave .AutoToolTip = true; menuFileSave .ToolTipText = "Save the current data set" ;
menuFileSaveAs.AutoToolTip = true; menuFileSaveAs.ToolTipText = "Save data set with a different name";
menuFileExit .AutoToolTip = true; menuFileExit .ToolTipText = "Exit the program" ;

// Add items to the main menu.

menu.Items.Add(menuFile);

menuFile.DropDownItems.Add(menuFileOpen );
menuFile.DropDownItems.Add(menuFileSave );
menuFile.DropDownItems.Add(menuFileSaveAs);
menuFile.DropDownItems.Add(menuSeparator );
menuFile.DropDownItems.Add(menuFileExit );

menu.Items.Add(menuHelp);

menuHelp.DropDownItems.Add(menuHelpAbout );

// Add the list of controls.

Controls.Add(menu);

// Assign the menu to the form.

MainMenuStrip = menu;

// Disable Save and SaveAs since there is no file open.

menuFileSave .Enabled = false;
menuFileSaveAs.Enabled = false;
}

Neal Conrardy18-Mar-07 8:34

18-Mar-07 8:34

I have determined the application is using the ToolStrip area as the client area. ToolStrip is calling my OnPaint, OnMouseDown, etc. for the ToolStrip. How do I force it not to do this?

Neal Conrardy18-Mar-07 16:50

18-Mar-07 16:50

After going back in Petzold's book, he states that overriding OnPaint also overrides the Controls (ToolStrip, etc.). I read that if one calls Invalidate(false), the child controls will not get the message. Anyway, I made the client area a Panel and made event handlers for mouse moves, paint, etc. This was actually easier to paint to because now I do not have to determine the offsets for the tool bar, status bar, and menu.

Now I need to find an example for StatusStrip instead of using StatusBar.

Neal Conrardy19-Mar-07 10:20

19-Mar-07 10:20

Christian, thanks for the advise. If I already have the png files, how to I add the png files as a resource so they are included in the executable? Also, how do I load them into the application?

Neal Conrardy20-Mar-07 7:46

Re: C# threads and graphics

20-Mar-07 7:46

Simple question but I guess no one knows the answer.

I finally figured it out.

1) Add a bmp, ico, etc. to your project.
2) Select properties on bmp, ico, etc. and make Build Action - Embedded Resourse
3) Select properties on project, and make Default namespace: - Tools.Test
4) If the code in not in a namespace, then you can loose the Tools prefix.

using System;
using System.Drawing;
using System.Windows.Forms;

namespace Tools
{
class Test : Form
{
public static void Main()
{
Application.Run(new Test());
}
public Test()
{
Text = "Test";
Icon = new Icon(GetType(), "Test.Test.ico");
}
}
}

FTP

bwagz17-Mar-07 16:44

bwagz

17-Mar-07 16:44

I'm trying to implement a software registration in my application. When the user registers, it checks our server for the software license they entered to see if its' valid.

From what I've read on the web, I needed to do this using FTP. I'm still using VS2003 so webclients are not available.

Everything seemed to work fine until one of our customers was behind a well protected firewall. For datasocket transmission I'm using PASV mode, but they still can't register. In fact, they can't even log into our FTP server.

My question is: Is using FTP the best way of sending files and data between server and client with C# .NET 1.0? If so, how would this customer register if behind a firewall. Would they need to have their IT guys allow access to our IP address?

Thanks,

Brian

Re: FTP

Ryno Burger17-Mar-07 21:15

Ryno Burger

17-Mar-07 21:15

Another good idea would be to implement a registration service via http. You have a 99% chance that you clients would have port 80 open. Perhaps in you VS app you can have a link to your server which will allow then to register from there.

C# threads and graphics

bruceczelenka17-Mar-07 15:36

bruceczelenka

17-Mar-07 15:36

I want to have one thread generate a point location (bouncing ball) and then have a second thread draw the point on a panel. Do I have to use a producer/consumer relationship? What if I wanted to do multiple points...lets say 10?

Bruce Zelenka

Christian Graus17-Mar-07 18:12

Christian Graus

17-Mar-07 18:12

You probably want to make a thread safe collection to hold the balls, and just have your painting thread paint whenever the rest of the app is idle.

c# App - Vista Changes UI Colors

rbirkelbach17-Mar-07 12:35

rbirkelbach

17-Mar-07 12:35

Hi,

We have a software product developed in c# (.net 2005). We installed Vista onto a test computer to try it out, and we are experiencing some problems with UI colors. None of us are really up to speed on Vista yet, so we are looking for a little direction.

As an example, the (default) Vista color scheme changes the forecolor of command buttons in our application when executed (IDE not installed on Vista). In Win2K and XP the colors are displayed according to how we have defined them in our code. However, in Vista it appears that text for disabled controls is brighter than for enabled ones. We have a picture box defined with a white background, but for some reason it appears black in Vista.

Perhaps it's something obvious that we're missing, but we have not found anything posted. Can someone offer some advice?

Many thanks in advance!

Ron Birkelbach
Kennebec, Inc.

Re: c# App - Vista Changes UI Colors

Ed.Poore19-Mar-07 12:51

Ed.Poore

19-Mar-07 12:51

If you modified the controls' colours in the designer then there'll be a line inserted in the InitializeComponent method which sets the colour. If you delete these lines the colours will revert to the default and this will hopefully be the correct one for Vista. Alternatively if you're setting colours in code you should look at the SystemColors class.

XOR problem

HexaDeveloper17-Mar-07 11:40

17-Mar-07 11:40

hi all,

this is my problem

i used this code

Graphics grfx = this.createGraphics();
grfx.DrawLine(Pens.Black,p1,p2);

in the Mouse_Move EventHandler but it draw alot of lines
so i want to use XOR mode to draw only the last one

thanx in advance

Generator

mav.northwind17-Mar-07 12:49

mav.northwind

17-Mar-07 12:49

Hi!
You could use ControlPaint.DrawReversibleLine() to get something like an "XOR" mode.
But are you sure you know what you're doing?
Usually creating a graphics object in a mouse event handler to do some painting is a bad idea.
Do you dispose of every Graphics object you create? Beginners usually forget about it and then get ressource leaks. And what if the surface you're drawing your lines on gets hidden by another window and redrawn? All your lines will be gone...

Regards,
mav

--
Black holes are the places where God divided by 0...

HexaDeveloper17-Mar-07 22:12

17-Mar-07 22:12

hi mav,

actually i didnot draw in mouse move
i put every drawing in OnPaint() but it make some problems
in other parts of code so i decided to draw it in mouse move
(iam just trying to solve my problem so i didnot think in Dispose)

and thanx for remembering me of Dispose as i think u solve to me the problem of my program stop(Resources leak)

thanx again(i will try ControlPaint.DrawReversibleLine())

Generator

HexaDeveloper18-Mar-07 9:29

18-Mar-07 9:29

hi mav,

i read about ControlPaint.DrawReversibleLine in MSDN and if my understanding(it deletes the first draw if drawen again by same coordinates) is right so i think it will not be true to use it as i tried it and nothing changed

thanx

Generator

HexaDeveloper19-Mar-07 13:10