C#

FirstPrevNext

Re: Does exist this user control. Henry Minute29-Aug-09 3:11 Henry Minute 29-Aug-09 3:11  AFAIK there is no control that does this, or at least I could not find one. What you are describing sounds rather like a graphical database designer or query designer works. If you google for c# database designer or c# diagram designer, you might well find something that you can get useful code from, or at least ideas. It seems to me that you will need to build your own control, and if so I would suggest that you use ListBoxes for ColumnA and ColumnB. You will need to research Drag and Drop, and for drawing the links I would suggest that you create a class that contains the starting listbox, the item (A1, A2 etc.) from that box and the same for the ending listbox. Then when a link is needed create a new instance of the class and add it to a list. when your control needs to paint itself, you just iterate over the list drawing a line from the start listbox to the end listbox. Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.” Re: Does exist this user control. Fired.Fish.Gmail30-Aug-09 4:48 Fired.Fish.Gmail 30-Aug-09 4:48  thanks Henry, I will try it. Installing a service ? Mohammad Dayyan28-Aug-09 2:36 Mohammad Dayyan 28-Aug-09 2:36  Hi. Can we install a Service with a WinApp ? Could you please guide me ? Thanks a lot. Re: Installing a service ? Calla28-Aug-09 2:53 Calla 28-Aug-09 2:53  I've been doing a lot of service installations from a WinForm, and I prefer to use the methods in advapi32.dll via p/Invoke. Check out the methods: OpenSCManager CreateService CloseServiceHandle Re: Installing a service ? PIEBALDconsult28-Aug-09 5:18 PIEBALDconsult 28-Aug-09 5:18  Install a Windows Service in a smart way instead of using the Windows Installer MSI package[^] Re: Installing a service ? Mohammad Dayyan28-Aug-09 9:01 Mohammad Dayyan 28-Aug-09 9:01  Thanks a lot friend. Lit the Num, Caps and Scroll lock light? Mc_Topaz28-Aug-09 1:59 Mc_Topaz 28-Aug-09 1:59  Hello! Is it possible to lit the num, caps and scroll lock light on a regular keyboard with a C# program? Re: Lit the Num, Caps and Scroll lock light? Keith Barrow28-Aug-09 2:14 Keith Barrow 28-Aug-09 2:14  It's not easy, you have to Interop with windows. See this codeproject article: Read and Update CAPS or NUM lock status from your application[^] Re: Lit the Num, Caps and Scroll lock light? Mc_Topaz28-Aug-09 4:37 Mc_Topaz 28-Aug-09 4:37  Thanks! Re: Lit the Num, Caps and Scroll lock light? DaveyM6928-Aug-09 2:18 DaveyM69 28-Aug-09 2:18  You can read the state easily, but to set/toggle it requires some PInvoke I believe. There's a MS article here[^] with code in VB as an example. Dave BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia) Why are you using VB6? Do you hate yourself? (Christian Graus) Re: Lit the Num, Caps and Scroll lock light? DaveyM6930-Aug-09 22:21 DaveyM69 30-Aug-09 22:21  In case you haven't solved your issue completely - I have posted an article on this subject that is a full solution, dealing with many problems that I encountered that you may not yet have come across. Thanks for your post, it inspired the article! Toggle Keys Controller Article[^] Dave BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia) Why are you using VB6? Do you hate yourself? (Christian Graus) Re: Lit the Num, Caps and Scroll lock light? Mc_Topaz31-Aug-09 5:06 Mc_Topaz 31-Aug-09 5:06  Thanks! Tried to understand your solution, but it's maybe to advance for me, not much code-comments either. But your solution proves that it's possible to do lit the keyboard lights with a C# program. Now I know it's possible Re: Lit the Num, Caps and Scroll lock light? DaveyM6931-Aug-09 8:53 DaveyM69 31-Aug-09 8:53  If you either copy the files in the Keyboard project into your own, or add a reference to the Keyboard.dll file to your solution, you don't need to worry about how I've implemented it - you can just use the properties, events and method(s) of the ToggleKeyController class as I have done in the demo (if you look at the code in FormMain.cs). Dave BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia) Why are you using VB6? Do you hate yourself? (Christian Graus) Threads jpk42028-Aug-09 0:33 jpk420 28-Aug-09 0:33  Hello All , I have requirement that User will have list of Directories . the moment user selects a Directory Thread s hould be started and It s hould display List of Txt files name and dates in Grid . User can change the directory and the thread should show the files of that directory in grid I have done the code like this public static DataTable GetFilesinDirectory() { DriveInfo Drive = new DriveInfo(strDriveName); DirectoryInfo[] DirectoryList =Drive.RootDirectory.GetDirectories(strDirectoryName); DtFilesList.Rows.Clear(); // DtFilesList.AcceptChanges(); FileInfo[] FilesList = DirectoryList[0].GetFiles("*.txt"); foreach(FileInfo ObjInfo in FilesList) { DataRow drFileInfo = DtFilesList.NewRow(); drFileInfo["Name"]=ObjInfo.Name; drFileInfo["CreationTime"]=ObjInfo.CreationTime; drFileInfo["Extension"]=ObjInfo.Extension; drFileInfo["LastWriteTime"]=ObjInfo.LastWriteTime; DtFilesList.Rows.Add(drFileInfo); } return DtFilesList; } This method is assigned to thread strDirectoryName will be updated once user selects the Directory But problem is Since it is Static method I cant acces the Grid then how should i Bind ? Re: Threads Luc Pattyn28-Aug-09 0:48 Luc Pattyn 28-Aug-09 0:48  Hi, if static were the problem (I'm not really sure), why don't you drop the static keyword? A thread does not require its runner method to be static. Luc Pattyn Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you. Re: Threads jpk42028-Aug-09 1:34 jpk420 28-Aug-09 1:34  Okie Let me tell the requirement .. A thread should be there which will pool a folder for every 5sec and show the list ofiles in grid with the new changes Re: Threads Luc Pattyn28-Aug-09 1:41 Luc Pattyn 28-Aug-09 1:41  I see no problem (maybe that's because I don't read code when it is not in PRE tags). Try to be specific: what is it that happens and you don't like; or you would like to happen but it doesn't? And use PRE tags. Luc Pattyn Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you. Re: Threads jpk42028-Aug-09 1:46 jpk420 28-Aug-09 1:46  what i have done is I binded DatatTable to binding Source and then binded that Source to that Grid . No i Have written a method which will get List of all the files for slected directory and store it in the DatatTable which is binded to the source . This method i have assigned to the thread .. Now the datattable is getting updated but the Grid Is not getting refreshed ??? That is the problem Re: Threads Luc Pattyn28-Aug-09 1:50 Luc Pattyn 28-Aug-09 1:50  My experience with data binding is limited. If the control is not tracking your changing datasource, the one way I know how to fix it is by setting the datasource to null, then assign the real one again. And maybe, never tried it, Control.Invalidate() also works. Luc Pattyn Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you. Re: Threads OriginalGriff28-Aug-09 5:17 OriginalGriff 28-Aug-09 5:17  Luc, isn't it a simpler problem? If he is indeed using separate threads, then he can't update the grid anyway without invoking the GUI thread - can he? No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced. This message is made of fully recyclable Zeros and Ones Re: Threads Luc Pattyn28-Aug-09 5:57 Luc Pattyn 28-Aug-09 5:57  Yeah, one shouldn't touch the data binding properties from another thread, unless through Invoke. Not sure that's the problem, it could well be. This whole thread is unclear to me. Luc Pattyn Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you. object typeconversion syntax error myinstincts28-Aug-09 0:29 myinstincts 28-Aug-09 0:29  Below is the code written in row editing event of data gridview(in assumption that row editing can only be done if some control like textbox is there) (TextBox)(GridView2.Rows[0].Cells [2]) = "a"; But is this syntax of object conversion correct?It is giving error as system cannot convert type string to system.web.ui.webcontrols Re: object typeconversion syntax error stancrm28-Aug-09 0:31 stancrm 28-Aug-09 0:31  yes, because "a" is a string, not a textbox. Re: object typeconversion syntax error Keith Barrow28-Aug-09 0:46 Keith Barrow 28-Aug-09 0:46  Try ((TextBox)(GridView2.Rows[0].Cells [2])).Text = "a"; Need BHO Solutions Jacobb Michael27-Aug-09 23:49 Jacobb Michael 27-Aug-09 23:49  Hi all, Through IHTMLElementCollection we can get all the IHTMLElement. I want to find out all the HTMLInputButtonElement that is in the current DOM. How to navigate (frames,iframes,divs,tables) and find out the HTMLInputButtonElement Is there any common algorithm. Thanks in advance

Last Visit: 31-Dec-99 18:00     Last Update: 30-Apr-24 11:12 Refresh ᐊ Prev1...4455445644574458445944604461446244634464 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.