C# Discussion Boards - CodeProject

Guffa10-Jul-07 9:40

Guffa

10-Jul-07 9:40

You can't put code into an existing method. You have to compile the code into a new assembly.

Take a look at the Microsoft.CSharp.CSharpCodeProvider class.

---
single minded; short sighted; long gone;

Ketty Avashia10-Jul-07 10:05

Ketty Avashia

10-Jul-07 10:05

Thanks, I did see an example of "Microsoft.CSharp.CSharpCodeProvider class" on CodeProject, if you or any body has used it. Is it performance promising?

Ketty

PhilDanger10-Jul-07 10:58

PhilDanger

10-Jul-07 10:58

private void ExecuteUser()//Function in Utility
{
      if(txtUserCode.Text != "while(true){}"){
        //run!
      }
}

Feel free to use this as a safeguard after you get the rest of it figured out Smile | :)

Ketty Avashia10-Jul-07 11:32

Ketty Avashia

10-Jul-07 11:32

I am not quite sure if I understand the idea completely.
Please advice.

Ketty

PhilDanger11-Jul-07 2:58

PhilDanger

11-Jul-07 2:58

Just a joke about the dangers of letting users execute their own code -- the code I wrote "checks" for an infinite loop.

Ketty Avashia11-Jul-07 5:34

Ketty Avashia

11-Jul-07 5:34

:-DJokes are fine but I am looking for serious comments on this issue

Ketty

Cyrilix11-Jul-07 8:28

Cyrilix

11-Jul-07 8:28

If you just want to compile code and execute it, you can always invoke the compiler with the correct command line options when the user would like to execute the code, and then start / wait on the process that you just compiled. That's probably the most general way to do things. I wouldn't advise it though, as I don't see any practical application. If, on the other hand, you want to do some kind of scripting, you could always encapsulate existing functions and dynamically call them by parsing a script, using a virtual address space within your actual program for the storage of stack variables and dynamically allocated memory.

question???

sarvenaz8410-Jul-07 8:47

sarvenaz84

10-Jul-07 8:47

you said goole maps will work if the pc is online.what should I do if I want to work offline?
then you said somthing about Dundas and you assume it sells maps offline.would you please explain about it?How can I reach to these maps?

Re: question???

Christian Graus10-Jul-07 9:06

C# Having the Font resize accordingly with the label and the form it is in.

10-Jul-07 9:06

First of all, you got lucky, if I wasn't online, no-one would know what you were talking about.

second, if you're offline, google maps can't work, I said that.

third, the ads for Dundas are on this site all the time, and google is all you need, if you can't work out to try www.dundas.com.

Christian Graus - Microsoft MVP - C++

"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 )

jfo's Splitbutton...

Faredegyn10-Jul-07 8:12

Faredegyn

10-Jul-07 8:12

Well, it's an updated version that was done and can be found at http://wyday.com/blog/2007/csharp-splitbutton/

anyways, I have it implemented just fine, but I am having difficulty constructing an event handler to deal with the selection that the user makes.

The code works by constructing a a contextMenuStrip, then adds Items to it. I am wondering how do I set up an event handler that takes the chosen item and when the button is clicked, does a particular action. If I can at least get a hint to what I need to implement to set it up, that would be great.

If you need more code, just ask.

Thank you,

Fare

Re: jfo's Splitbutton...

Faredegyn11-Jul-07 3:24

Faredegyn

11-Jul-07 3:24

Ok let's try this again...

(sorry if this violates some sort of double post law)

<<designer class="">>

<br />
this.splitButton.ContextMenuStrip = new<br />
System.Windows.Forms.ContextMenuStrip();<br />
this.splitButton.ContextMenuStrip.Items.Add("Item1");<br />
this.splitButton.ContextMenuStrip.Items.Add("Item2");<br />
this.splitButton.ContextMenuStrip.Items.Add("Item3");<br />
<br />
<br />
this.splitButton.Click += new System.EventHandler(this.cmdSplitButton_Click);<br />

<>

<<splitbutton class="">>

<br />
        protected override void OnMouseUp(MouseEventArgs mevent)<br />
        {<br />
            if (!showSplit)<br />
            {<br />
                base.OnMouseUp(mevent);<br />
                return;<br />
            }<br />
<br />
            if (mevent.Button == MouseButtons.Right)<br />
            {<br />
                ShowContextMenuStrip();<br />
            }<br />
            else if (m_SplitMenu == null || !m_SplitMenu.Visible)<br />
            {<br />
                SetButtonDrawState();<br />
<br />
                if (Bounds.Contains(Parent.PointToClient(Cursor.Position)) && !dropDownRectangle.Contains(mevent.Location))<br />
                {<br />
                    OnClick(new EventArgs());<br />
                }<br />
            }<br />
        }<br />

<>

<>

<br />
private void cmdSvAllImg_Click(object sender, EventArgs e)<br />
{<br />
}<br />

<>

My question is what do I need to do so that when the button is clicked, it does an action that corresponds with the selection of the splitbutton (e.g if the user selected Item1, it would do an Item1 specific job, and Item2 selection would do an Item2 job)

If any other info is needed, just let me know. The splitButton class can be downloaded at http://wyday.com/files/SplitButton.zip

Thank you again,

Anthony Novak

Minosknight10-Jul-07 7:12

Minosknight

10-Jul-07 7:12

I've looked at all the properties and tried anchoring it to all the sides. Looked up auto-sizing and found out how to do it for the label but not to make the text in the label enlarge or shrink when I re-size the box. Any ideas?

Re: C# Having the Font resize accordingly with the label and the form it is in.

Christian Graus10-Jul-07 7:15

Re: C# Having the Font resize accordingly with the label and the form it is in.

10-Jul-07 7:15

You'd need to track the scale change and change the font size yourself.

Christian Graus - Microsoft MVP - C++

"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 )

Minosknight10-Jul-07 7:18

Minosknight

10-Jul-07 7:18

I'm wondering if there is a way so I don't have to change the font manually every time I wanna change the size of the window.

Re: C# Having the Font resize accordingly with the label and the form it is in.

Christian Graus10-Jul-07 7:32

How to trap unhandled exceptions

10-Jul-07 7:32

I guessed that. I'm saying that I don't believe so.

Christian Graus - Microsoft MVP - C++

"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 )

Glenn E. Lanier II10-Jul-07 6:45

10-Jul-07 6:45

Hi. I'm trying to catch all unhandled exceptions in my application (so they can be logged and the user presented with a "nice" message instead of some confusing "computer-y" message.

I do the following in my WinForm application:

-- In the constructor
// Create the unhandled exception handler
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(OverAllUnhandledHandler);

-- the method
static void OverAllUnhandledHandler(object sender, UnhandledExceptionEventArgs args) 
{
   Exception e = (Exception) args.ExceptionObject;
   logger.Log(LogLevel.Fatal, e.ToString());

   MessageBox.Show("Please check error logs for details", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}

If I create a divide by zero error, it is trapped (either in the constructor or in a button click event. I have even created a thread that starts and causes the error; it is still trapped. However, some errors are still popping up in the standard "Microsoft .NET Framework" dialog, with the text "An unhandled exception has occurred in your application.....".

Any idea how to get all unhandled exceptions (I know, code better to catch all exceptions) to be caught by this OverAllUnhandledHandler method?

Thanks for any tips.

--G

Christian Graus10-Jul-07 6:59

10-Jul-07 6:59

I put my main code in a try/catch and handle threaded exceptions, it's a long time since my app blew up without logging a nice error for me and telling the user of the same.

Christian Graus - Microsoft MVP - C++

"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 )

Glenn E. Lanier II10-Jul-07 7:57

10-Jul-07 7:57

Thanks -- haven't been handling threaded exceptions -- giving that a shot.

Do you mean you put a try/catch around the

Application.Run(formName);

in Main()?

Christian Graus10-Jul-07 8:11

10-Jul-07 8:11

Yes, that's all I did initially, then as I am multithreaded, I had to add code to handle exceptions in threads.

Christian Graus - Microsoft MVP - C++

"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 )

Glenn E. Lanier II10-Jul-07 10:14

10-Jul-07 10:14

Great. Thanks. I've included both the try/catch and the ThreadException code -- we'll see how it runs this afternoon!

Daniel Grunwald10-Jul-07 8:17

Daniel Grunwald

10-Jul-07 8:17

I handle exceptions using:
AppDomain.UnhandledException,
System.Windows.Forms.Application.ThreadException,
and a catch-all handler in void Main().
This gets all unhandled exceptions (well, except for some that are swallowed by Windows Forms/COM in the Drag* events - put catch handlers in all Drag* event handlers).

Glenn E. Lanier II10-Jul-07 10:16