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Thnk you very much. 
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for some reason this doesn't work for me. The SecurityException is never thrown.
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I have the same problem
I think the reason is that this is fileIO permissions. Not folder.
Still looking for a folder check - will update if I find something.
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Hi,
You can try following code block to check if the directory is having Write Access.
It checks the FileSystemAccessRule.
string directoryPath = "C:\\XYZ";
bool isWriteAccess = false;<br />
try<br />
{<br />
AuthorizationRuleCollection collection = Directory.GetAccessControl(directoryPath).GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount));<br />
foreach (FileSystemAccessRule rule in collection)<br />
{<br />
if (rule.AccessControlType == AccessControlType.Allow)<br />
{<br />
isWriteAccess = true;<br />
break;<br />
}<br />
}<br />
}<br />
catch (UnauthorizedAccessException ex)<br />
{<br />
isWriteAccess = false;<br />
}<br />
catch (Exception ex)<br />
{<br />
isWriteAccess = false;<br />
}<br />
if (!isWriteAccess)<br />
{<br />
}
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This work on local computer, how about a network shared folder(e.g.\\Server01\Files)?
I am happy to work with people doing great projects.
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Hi,
Is there anyway to find the location of the csc.exe compiler dynamically? I am trying to automate the compilation process for which i would need the location of the csc compiler.
- kp
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May check throgh registry if framework is installed
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727
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If you're using a managed language (vs. a vanilla script) to automate the process, I recommend using the CSharpCodeProvider class. For example, to compile HelloWorld.cs to an .exe, do the following:
CSharpCodeProvider cp = new CSharpCodeProvider();
ICodeCompiler icc = cp.CreateCompiler();
CompilerParameters parms = new CompilerParameters();
parms.GenerateExecutable = true;
parms.OutputAssembly = Output;
CompilerResults results = icc.CompileAssemblyFromFile (parms, "HelloWorld.cs");
/ravi
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Wow! I didn't know you could do that! Five points.
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I'm new to XML, but wat I'm trying to do is this.
I have a XML file with config settings and language items
e.g.
<XML>
<Config>
<Port>com1</Port>
<Baud>9600</Baud>
</Config>
<Language>
<Item No="1000" Text="Hello world" />
<Item No="2000" Text="Good Bye" />
</Language>
</XML>
I read the Config elements by using GetElementByTagName, so this is no problem.
I'm looking for a simmular way of selecting the language items so I can do somthing like
psedu code
Lang = XMLSetup.GetElementsByTagName("Language")[0];
XmlElement LangText= (XmlElement)Setup;
textbox.text=LangText.GetElementByAttribute("No","1000").GetAttribute("Text")
The last line selects the "value on an attribute, depending on an other attribute"
Could this be done?
If I change the structure of of my XML file to somthing like...
...
<Language>
<Item No="1000">
<Text>Hello world</Text>
</Item>
could it be done then??
Any ideas on how to format the XML and do the selection?
I'm used to work with databases, and XML could be used as a databse, or???
If you use an SQL table, you can simply do "select Text from Language where No="1000"...
Thanksfull for any advice
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The trick to doing this is fairly easy://Item[@No='1000']Basically, this searches for all elements from the root that match Item where there is an attribute No with the value 1000. The @ symbol is used to indicate that it's an attribute.
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I don't follow you here...
Can you give me an example of how to write that in C#?
Thanks!
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System.Xml.XmlDocument xmlDocument = new System.Xml.XmlDocument();
xmlDocument.Load(@"c:\text.xml");
System.Xml.XmlNodeList xmlNodeList = xmlDocument.SelectNodes("//Item[@No='1000']");
foreach (System.Xml.XmlNode xmlNode in xmlNodeList)
{
Console.WriteLine(xmlNode.Value);
}
happy coding 
regards,
mark
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I get the following error message sometime when i Navigate to a html file through the webbrowser control C#. Has anyone every comes across while loading an html file. thanks
Action canceled
Internet Explorer was unable to link to the Web page you requested. The page might be temporarily unavailable.
Please try the following:
Click the Refresh button, or try again later.
If you have visited this page previously and you want to view what has been stored on your computer, click File, and then click Work Offline.
For information about offline browsing with Internet Explorer, click the Help menu, and then click Contents and Index.
Internet Explorer
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Type your address in a web browser and see if that address exists or not.
When you're alone in the Dark, Fear will protect you...
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yes i does work first it asked me for my login and password after that i tooke me to the defualt IIS page. I get that error message randomally. sometimes i do get it and someteimes i don't while running my c# app that has webbrowser control in it .
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I have a single instance CAB application.
What I would like to have happen is when a second instance tries to run, it instead passes the argruments to currently running instance, and that instance processes those arguments.
Something like,
_mainForm.Activate(args);
I have this in my ShellMainApplication Main method
bool ok;
Mutex m = new Mutex(true, "InfinityMMSC", out ok);
// app is already running, something needs to be done here
// the running app should process the arguments
if (!ok)
{
// THIS IS WHERE I WOULD LIKE THE ARGUMENTS TO BE PASSED TO THE RUNNING APP
MessageBox.Show("Another instance is already running.");
return;
}
Is there a way to do this?
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I am currently designing my first serious windows application, and I'm wondering whether it's worth using the DirectX libraries.
The application is going to be 2D (although I may implement some 3D elements at a later date), but I don't want it to look like a standard windows application. I'd like to use bitmap images to define the look of the program elements. I don't want the normal title bar on every window and sub-window, I don't want it to be color schemed like typical Windows forms, and there's a good chance that not every element is going to be a uniform shape. The program will need to handle lots of bitmap images simultaneously, with alpha channel support for formats like PNG. I'll also be making use of sound files like mp3s or ogg vorbis.
Just to clarify. This is not technically a game that I'm making. It's a table-top simulator, for playing games like Dungeons&Dragons. So animations and such are not really a priority.
With that in mind, I am wondering...
A) Can the standard Windows libraries handle what I'd like to do?
B) What if any benefits would I gain by using Managed DirectX in this primarily 2D application?
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As a personal opinion I would go for WPF[^] instead of using Forms or DirectX directly.
WPF allows you to use the potential of DirectX but at a higher level.
The need to optimize rises from a bad design.
My articles[ ^]
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I second that. Sounds like a great fit for WPF.
Generico300 wrote: A) Can the standard Windows libraries handle what I'd like to do?
The 2D stuff, yes - and any 3D stuff you want to write yourself.
Generico300 wrote: B) What if any benefits would I gain by using Managed DirectX in this primarily 2D application?
Is managed DirectX even supported anymore?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Managed DirectX has been effectively superceded by XNA. Unfortunately XNA is geared to pushing cross platform development to console, so it misses a whole bunch of features. New development for DirectX should either use the unmanaged API directly thru C++/CLI, or SlimDX (an open source wrapper) if XNA won't cut it.
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Mark Churchill wrote: Managed DirectX has been effectively superceded by XNA.
That's been my understanding for quite a while,
since it was dropped from the SDK.
It still gets asked about often
Thanks!
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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I have a databound gridview on a form in which two columns are formatted numerically to two decimal places. If either of these columns has the value edited and left null, the default error dialog appears. I am having difficulty finding an event that fires before the formatting is attempted, that will allow me to display a custom error message or set a default value in the appropriate cell. I have tried setting the default null value of the column to 0 but that hasn't helped.
Thank you in advance!
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You may be able to trap and prevent the DataGridView error from displaying via the grid's DataError event. You can definitely Cancel grid errors via that event. You may also want to take a look at the CellFormatting event of the DataGridView to see if you can use that to override numeric nulls.
Just a couple of thoughts. Good luck...
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The situation is that I have utility libraries that are used by both ASP.NET and WinForm/console applications. Occasionally these libraries need to reach into the environment to get information. Since the environments are so different I was looking for suggestions on how to hide those differences in the libraries. Suggestions?
Haven't just been bitten by concurrency issues surrounding static variables in ASP.NET applications the specific problem at hand is storing session variables. In ASP.NET you need to store them in HttpContext.Current.Session and in winform/console apps you would simply use a static variable. How do I provide a storage mechanism that is transparent to which environment it is running in?
I suspect I could write a class that determines the environment (how do I do that?) and either stores the data in Session or a private hashtable for winforms. I'm not that familiar with the class loader. Would I avoid dragging in the Web assemblies if I use fully qualified names surrounded by environment if statements (rather than using statements)?
eg:
if (isAsp){
HttpContext.Current.Session["xxx"] = value;
} else {
winSession["xxx"] = value;
}
Help, suggestions appreciated.
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