C#

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Help Displaying Unicode String WorldNomad19-Nov-03 19:19 WorldNomad 19-Nov-03 19:19  Not sure where to post this. Is there a builtin function or easy way to convert upper-unicode characters to their escaped HTML equivalent? I.E. I have a string defined and written out to HTML as: string testString = "[\u2026]"; writer.Write(testString); What I would like in the resulting HTML output is "[…]", but what I get is the actual unicode byte. I have tried HtmlEncode and various Text.Encoding but they do not handle this... Is there any builtin functions to handle this, or is a funciton needed to loop through the bytes in the string and escape the characters? FYI: This is just a simple test, the actual data is from an outside data-source and has these characters in it which I need to escape. Re: Help Displaying Unicode String Heath Stewart20-Nov-03 2:51 Heath Stewart 20-Nov-03 2:51  See the HttpUtility.HtmlEncode method. It's static and can be used outside the scope of ASP.NET.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: Help Displaying Unicode String WorldNomad20-Nov-03 16:41 WorldNomad 20-Nov-03 16:41  Actually that was the first thing I tried and it doesn't work: string testString = "[\u2026]"; HttpUtility.HtmlEncode(testString, writer); doesn't encode it to be … - it just leaves it as the unicode character (which displays as garbage). It seems like it should work, or there should be a builtin function to do this... Make control draw on top of other forms JacksonBrown196019-Nov-03 12:37 JacksonBrown1960 19-Nov-03 12:37  I have a main form that uses AddOwnedForm to allow these forms to draw on top of the main form. The problem I am having is with a control that I created by inheriting from System.Windows.Forms.Control. When I display this control, which belongs to the main form, it will draw properly until it tries to write on top of an area occupied by an owned form. Is there a way to allow a control to draw on top of anything. I tried using SetTopLevel but that seems to turn it into a form and puts a forms border around it. I have seen the build in ComboBox control pop up its listbox over anything so I figure it must be possible. Does anyone have any ideas? Thanks, Jay Re: Make control draw on top of other forms Heath Stewart20-Nov-03 3:55 Heath Stewart 20-Nov-03 3:55  Try overridding the CreateParams property and doing something like so: protected virtual System.Windows.Forms.CreateParams CreateParams { get { CreateParams parms = base.CreateParams; parms.Style |= WS_POPUP; // Defined as 0x80000000 return parms; } } I'm not totally positive this will work, but it's worth a try.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: Make control draw on top of other forms JacksonBrown196020-Nov-03 5:11 JacksonBrown1960 20-Nov-03 5:11  Unfortunately that did not work the way I needed. When you modify a control to have the WS_POPUP style it no longer acts as a child on the form and processing of other controls does not work. Thanks for the suggestion. Problem testing NetworkStream for remote close ChiPlastique19-Nov-03 12:25 ChiPlastique 19-Nov-03 12:25  I'm using NetworkStream to read from a TCPClient. I'm testing DataAvailable before reading to keep by thread from blocking on read. The docs say that if the remote end has closed the connection, a call to DataAvailable should throw a SocketException, which I canb catch. Unfortunatly, the exception isn't getting thrown, so my code keeps spinning on DataAvailable forever, never knowing that the connection has been closed. There don't seem to be any other properties or methods in either TCPClient or NetworkStream that I can use to get the connection state without potentially blocking. Am I missing something? Is there another way to determine if the connection is active without risking a block? Thanks. Re: Problem testing NetworkStream for remote close Kentamanos19-Nov-03 12:53 Kentamanos 19-Nov-03 12:53  Most of the TCP code I've done runs in its own thread, so I never worry about blocking. That said, I'll take a few shots at it . Have you considered the asynchronous version of Read (BeginRead)? It's an asynchronous call, so it's non-blocking. I once did a simple test application (non-robust) and wanted a Read to timeout after a certain amount of time (this isn't exactly what you want, but keep reading). In order to do this, I needed to get at the Socket itself (TCPClient.Client). Since this property is protected, I ended up having to create my own class (TCPTimeoutClient or some such). Once you get to the actual Socket, you can do all sorts of extra things (take a look at Socket.Available and Socket.Select for instance). I'm not sure if these Socket versions would behave differently, but it might be worth a shot? I hope some of my babbling might help a little. I, for one, do not think the problem was that the band was down. I think that the problem may have been that there was a Stonehenge monument on the stage that was in danger of being crushed by a dwarf. -David St. Hubbins Shell context menu Ludwig Stuyck19-Nov-03 11:14 Ludwig Stuyck 19-Nov-03 11:14  Hi C#-people, I have a ListView, that contains directories and files. I was wondering how I can popup the context menu (which contains items such as 'open with', 'add to zip', 'Copy', 'Paste', etc...) if I right click on these files/directories. Can anyone point me in the right direction? Thanks! Kind regards Ludwig Re: Shell context menu Heath Stewart19-Nov-03 18:48 Heath Stewart 19-Nov-03 18:48  This is really not as easy as you might hope and - to do so in C# - will require recreating countless interfaces, enum, structs, and consts already defined in various headers for Win32 shell programming. See my answer to a somewhat similar problem to an early question today: http://www.codeproject.com/script/comments/forums.asp?msg=669971&forumid=1649#xx669971xx[^] While this isn't exactly what you're looking for, you're now going to have to play the part of the Windows shell and pass an ITEMIDLIST - which is going to be hard enough in an application that knows little about the actual shell - to a default context menu while accessing the registry to query for other context menu handlers for the associated file type. I give several links in that previous post. You should read the documentation at the targets of those links about shell programming. There's a lot involved so you might consider just handling generic operations like copy, cut, and paste (if they represent real files, you can simply use the DragDropFormats.Files clipboard format and put a string[] array of filenames into the DataObject for the drag-n-drop or clipboard operation like cut and copy (using the appropriate DragDropEffects). That clipboard format is one the shell recognizes and will cut or copy the files appropriately.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- How to get Internet Eplorer Selected Text? Utku KAYA19-Nov-03 10:30 Utku KAYA 19-Nov-03 10:30  Hi all. I need to get internet expl. selected text to process in my C# application. Any clear help will be appreciated. Re: How to get Internet Eplorer Selected Text? Heath Stewart19-Nov-03 18:33 Heath Stewart 19-Nov-03 18:33  Get the IHTMLDocument2 interface from the WebBrowser control (include the Microsoft.mshtml assembly in your project and get it from the WebBrowser.Document property, which may be null), then get the selection property (which may be null). This gets an IHTMLSelectionObject from which you can use the type property to determine the selection type (text, insertion point, control, etc.) and the createRange method to create a suitable object to work with the actual selection (like a TextRange). See the documentation for IHTMLSelectionObject in the MSDN Library for more detailed information).   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: How to get Internet Eplorer Selected Text? Judah Gabriel Himango20-Nov-03 4:36 Judah Gabriel Himango 20-Nov-03 4:36  Ughhh ugly and messy COM interfaces. Can't wait for Whidbey's managed web browser control. The graveyards are filled with indispensible men. Re: How to get Internet Eplorer Selected Text? Heath Stewart20-Nov-03 7:17 Heath Stewart 20-Nov-03 7:17  I haven't had a time to look at it (or eat, or drink, or breathe) lately. Is the WebBrowser control completely managed (inside and out), or is it just a nicer CCW for the existing WebBrowser COM control (wrapping mshtml and providing IHLink and all that jazz)? I know our app would definitely benefit from that, especially when the Microsoft.mshtml.dll assembly is almost 8 MB!   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: How to get Internet Eplorer Selected Text? Utku KAYA21-Nov-03 11:25 Utku KAYA 21-Nov-03 11:25  I didnt understand what you tried to tell. What web browser? Do i have to create mine in order to get the selected text? Say there is an instance of ie open , after that my app is run , and typing a hotkey I see the selected text. I want this. Re: How to get Internet Eplorer Selected Text? Heath Stewart22-Nov-03 11:13 Heath Stewart 22-Nov-03 11:13  "IE" as you call it is nothing more than an application that hosts the WebBrowser control (which hosts MSHTML). Read the documentation for the Internet Explorer SDK. Read information specifically about IHTMLDocument2 and its selection property. If you don't understand how to get the IHTMLDocument2 object, there are plenty of articles here on CP about it. Just search for "WebBrowser" or "IHTMLDocument2".   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- .NET : DEBUG and RELEASE problem youssef19-Nov-03 9:30 youssef 19-Nov-03 9:30  Hi, I create in the folder DEBUG or RELEASE some settings files for my executable. When I compile my project, the compiler delete the settings files and recreate a new folder DEBUG or RELEASE with the compiled files So how can I do for disable this option. Best Regards youssef Re: .NET : DEBUG and RELEASE problem Heath Stewart19-Nov-03 18:29 Heath Stewart 19-Nov-03 18:29  What do you mean by "settings file"? Do you mean the .config file? If this is the case, remove the app.config file from your project, which is a specially named file that's name is changed and it is copied to the output directory. Usually this is desired behavior so that you can source-manage the configuration file. Otherwise, you may have a pre- or post-build configuration (only in VS.NET 2003 and up for C# and VB.NET) that is deleting these files because the project compilers only replace files in the output directories that it actually creates.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- COM Interop problem Jose Vicente19-Nov-03 5:05 Jose Vicente 19-Nov-03 5:05  Hello. I'm using an ActiveX Control in my .NET project and I have to use a method that originally accepted a IStream. The .NET type library importer has modified the parameter of this method and now looks like this Interop::MyActiveXControl::IStream. The problem that I have is that I can't create directly a Interop::MyActiveXControl::IStream because this is an interface. I have created a System::IO::MemoryStream and fill it with data but this type can't be converted ( or I don't know how ) to convert to Interop::MyActiveXControl::IStream. Any ideas ?? Thanks in advance. Re: COM Interop problem Heath Stewart19-Nov-03 8:45 Heath Stewart 19-Nov-03 8:45  Create a new class and implement that interface. There won't be a class generated for it because the parameter is an interface, unless your COM library exposed a class that already implements it elsewhere.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Using a HWND from another application. mhand7519-Nov-03 5:04 mhand75 19-Nov-03 5:04  I wrote an application a while back that used WIN32 C++ to query a list box in another application for its contents (using SendMessage). I would like to do the same in C#, but instead of using SendMessage, I would like to associate the HWND with a ListBox instance. I can get the HWND for the listbox that is in another app, and I tried using Control.FromHandle, but it returns null. If, however, I put a listbox in my own application it works. This made me suspect that it is a security issue and just not possible. Thanks for any help. Re: Using a HWND from another application. John Arlen19-Nov-03 8:35 John Arlen 19-Nov-03 8:35  An HWND is not global but specific for an application's domain. (It's essentially a pointer). It is therefore not possible to use an HWND outside of that application. fastest active directory access thilol19-Nov-03 4:02 thilol 19-Nov-03 4:02  i want to retrieve the group-membership of all ad-users. the performance with the directorysearcher-class seems to be very poor. what do you think is the the fastest way? thanks for your hints! reagrds, thilo. CODE: Dim adEntry As New DirectoryEntry("LDAP://lan", "xxx", "yyy", AuthenticationTypes.Secure) Dim adSearcher As New DirectorySearcher(adEntry) Dim adSearchResult As SearchResult Dim AllResults As SearchResultCollection adSearcher.Filter = "(objectCategory=user)" adSearcher.SearchScope = SearchScope.Subtree adSearcher.SizeLimit = 65535 adSearcher.PageSize = 65535 adSearcher.PropertiesToLoad.Add("cn") adSearcher.PropertiesToLoad.Add("sAMAccountName") adSearcher.PropertiesToLoad.Add("memberOf") Dim intCount As Int32 = 0 Dim strSoft As String Dim strUser As String Dim ArrSoftware As New ArrayList ' alle gefundenen ad-user... AllResults = adSearcher.FindAll() For Each adSearchResult In AllResults ' wenn die user-id ok ist... If Not IsNothing(adSearchResult.Properties("sAMAccountName")) Then strUser = Convert.ToString(adSearchResult.Properties("sAMAccountName")(0)).Trim.ToLower Debug.WriteLine(strUser) Try ' wenn der user mitglied von gruppen ist... If adSearchResult.Properties("memberOf").Count Then ArrSoftware.Clear() ' jede gruppe in der der user mitglied ist... For Each strSoft In adSearchResult.Properties("memberOf") ArrSoftware.Add(strSoft) End If Next ' datensätze in datenbank If ArrSoftware.Count > 0 Then ApplInsert(strUser, ArrSoftware) End If Catch ' nix zu tun End Try End If Next Re: fastest active directory access Heath Stewart19-Nov-03 4:20 Heath Stewart 19-Nov-03 4:20  Unfortunatley, you don't have a lot of choices if you want to use pure .NET code. If this is a major problem, you could try doing this in a thread or a worker thread (see the ThreadPool class), being sure to use Invoke for ApplInsert if it modifies a UI (since controls are created on the main UI thread and should only be modified on that thread). You could also create a delegate for the ApplInsert method and use BeginInvoke (won't necessarily show-up via IntelliSense, but the compiler creates them automatically, at least the C# compiler does, which brings me to my next statement...) Also, this VB.NET code and you posted it in the C# forum. Fortunately, .NET allows coders to use different languages that use the base class library (BCL) - as well as other assemblies - to produce the (almost) the same IL that is language-independant. I must warn you, though, posting VB.NET in the C# forum might get you beat up!   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: fastest active directory access thilol19-Nov-03 4:30 thilol 19-Nov-03 4:30  ok. thanks. sorry for that vb.net-stuff! regards, thilo.

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