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  • Console.Write Not Working

    - by Steven
    I created a VB.NET Windows Forms Application in Visual Studio 2008. When I run my program from the command-line, I get no output (only the next prompt). Why? Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Debug.Write("Foo") Debug.Flush() Console.WriteLine("foo") Console.Beep(800, 100) 'confirm this function is called' Me.Close() End Sub

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  • How do I best implement my Windows desktop and service C# applications automatic updates?

    - by Ivan
    My project contains WinForms, WPF, and Windows Service programs running on users' office desktop PCs. I want these applications to periodically check for new versions available at specific URL, automatically download new versions and replace themselves with new versions without attracting any user attention (keeping in mind that users may run Windows from XP to 7 and work using non-privileged account (which can be part of active directory)). Alternatively the whole update package has to be able to be distributed as an unattended-installed MSI package. Any recommendations on implementing this?

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  • How to access the client registry using JavaScript?

    - by Vibin Jith
    Hai , How to set Key and Value in the client registry using javascript. I Just want to keep the user profiles in the registry. When a user visit the page from a particular system , automatically connect to the system preferred database.For that I want to keep the connection string in the windows registry. Please tell with code snippets , i am new in javascript.

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  • convert Arabic numerical to English

    - by hamitay
    i am looking for a way to convert the Arabic numerical string "??????????" to an English numerical string "0123456789" Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click dim Anum as string ="??????????" dim Enum as string =get_egnlishNum(Anum) End Sub private function get_egnlishNum(byval _Anum as string) as string '' converting code end function

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  • Caching images in iPhone app

    - by objektivs
    My iPhone app has a built in RSS reader. There are images and I'd like to find a way to cache them on the system but have the system manage the caching and eventual clean up. Is there a way of doing this?

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  • Why sockets does not die when server dies? Why socket dies when server is alive?

    - by Roman
    I try to play with sockets a bit. For that I wrote very simple "client" and "server" applications. Client: import java.net.*; public class client { public static void main(String[] args) throws Exception { InetAddress localhost = InetAddress.getLocalHost(); System.out.println("before"); Socket clientSideSocket = null; try { clientSideSocket = new Socket(localhost,12345,localhost,54321); } catch (ConnectException e) { System.out.println("Connection Refused"); } System.out.println("after"); if (clientSideSocket != null) { clientSideSocket.close(); } } } Server: import java.net.*; public class server { public static void main(String[] args) throws Exception { ServerSocket listener = new ServerSocket(12345); while (true) { Socket serverSideSocket = listener.accept(); System.out.println("A client-request is accepted."); } } } And I found a behavior that I cannot explain: I start a server, than I start a client. Connection is successfully established (client stops running and server is running). Then I close the server and start it again in a second. After that I start a client and it writes "Connection Refused". It seems to me that the server "remember" the old connection and does not want to open the second connection twice. But I do not understand how it is possible. Because I killed the previous server and started a new one! I do not start the server immediately after the previous one was killed (I wait like 20 seconds). In this case the server "forget" the socket from the previous server and accepts the request from the client. I start the server and then I start the client. Connection is established (server writes: "A client-request is accepted"). Then I wait a minute and start the client again. And server (which was running the whole time) accept the request again! Why? The server should not accept the request from the same client-IP and client-port but it does!

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  • SVN: Branches for Every Little Change?

    - by yar
    Hi. We have a client (who has a client, who has a client) who is driving us mad with change requests to a code base (in PHP). Our first response was to just work in a main trunk in SVN, but the client often comes back and requests that a certain change needs to get pushed to the live servers ASAP. On the other hand, other changes get reduced in priority suddenly, which originally came grouped with other changes (seemingly). We are thinking of using a branch for every change request. Is this mad? What other solutions might work? Thanks! Edit: This is a really hard question to choose the correct answer for. Thanks to everybody for your great answers. Edit: I know that the best answer I chose was not particularly popular. I too wanted to find a technical solution to this problem. But now I think that if the client wants software with features that can be deployed in a modular fashion... this problem should not be solved in our use of the version control system. It would have to be designed into the software. Edit: Now it's almost a month later and my coworker/client has convinced me that multiple branches is the way to go. This is not just due to the client's insanity, but also based on our need to be able to determine if a feature is "ready to go" or "needs more work" or whatever. I don't have the SVN with me, but we merge using the advice from the SVN Cookbook: you merge the branch from the revision it was branched to the head revision. Also, using this system, we merge all branches at some point and that becomes the new QA and then live build. Then we branch from that. Last Edit (Perhaps): Months later, this system is still working out for us. We create branches for every ticket and rarely have problems. On the other hand, we do try to keep things separate as far as what people are working on... Two Years Later: We use GIT now, and now this system is actually quite reasonable.

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  • How to find about structure of bitmap and JPEG files?

    - by Sorush Rabiee
    I'm trying to write a very simple image processing program for fun and practice. I was using System.Drawing. ... .Bitmap class to handle images and edit their data. but now I want to write my own class of Bitmap object implementation and want to know how bmp files (and other common bitmap formats) and their meta-data (indexing, color system & etc) are stored in files, and how to read and write them directly?

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  • CICS web service requestor GET CONTAINER returns neither data nor error

    - by Namhcir
    I am developing a CICS web service requestor application to consume a distributed web service. I used the web services assistant DFHWS2LS to transform the wsdl to copybooks successfully. I have no problem issuing the PUT CONTAINER and INVOKE SERVICE api commands, but when I issue GET CONTAINER I am not receiving any containers or data. No response codes or error messages, but no data. Any ideas on how to debug this would be greatly appreciated. Thanks,

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  • Can i store a Queue in viewstate? only will store the first item i add to queue

    - by Mausimo
    Hey, as the question states i am trying to store a Queue in a viewstate (to track postbacks and refreshes to stop a form from resubmitting). Here is just the viewstate code: private Queue<string> p_tempQue { set { ViewState["sTemp"] = value; } get { return (Queue<string>)ViewState["sTemp"]; } } //BasePage constructor public BasePage() { //create a Queue of string //sTemp = new Queue(); this.Load += new EventHandler(this.Page_Load); this.Init += new EventHandler(this.Page_Init); } //In the 'page_Init' event we have created a simple hidden field by name 'hdnGuid' which is attached to the page on the first hit itself. protected void Page_Init(object sender, EventArgs e) { //initializing the hidden field //create a hidden field with a ID HiddenField hdnGuid = new HiddenField(); hdnGuid.ID = "hdnGuid"; //if it is the first time the page is loaded, create a new guid and assign it as the hidden field value if (!Page.IsPostBack) hdnGuid.Value = Guid.NewGuid().ToString(); //add the hidden field to the page Page.Form.Controls.Add(hdnGuid); } //In the 'page_Load' event we check if the hidden field value is same as the old value. In case the value is not same that means it's a 'postback' //and if the value is same then its 'refresh'. As per situation we set the 'httpContent.Items["Refresh"]' value. protected void Page_Load(object sender, EventArgs e) { if(p_tempQue != null) sTemp = p_tempQue; else sTemp = new Queue<string>(); //The hdnGuid will be set the first time page is loaded, else the hdnGuid //will be set after each time the form is submitted using javascript. //assign the hidden field currently on the page for manipulation HiddenField h1 = (HiddenField)(Page.Form.FindControl("hdnGuid")); //create an instance of the GuidClass GuidClass currentGuid = new GuidClass(); //set the GuidClass Guid property to the value of the hidden field currentGuid.Guid = h1.Value; //check to see if the Queue of strings contains the string which is the current Guid property of the GuidClass //if the are equal, then the page was refreshed if (sTemp.Contains<string>(currentGuid.Guid)) { //adds item as key/value pair to share data between an System.Web.IHttpModule interface and an System.Web.IHttpHandler interface during an HTTP request. System.Web.HttpContext.Current.Items.Add("IsRefresh", true); } //if they are not requal, the page is not refreshed else { //if the current Guid property in the GuidClass is not null or not an empty string //add the new Guid to the Queue if (!(currentGuid.Guid.Equals(null) || currentGuid.Guid.Equals(""))) sTemp.Enqueue(currentGuid.Guid); System.Web.HttpContext.Current.Items.Add("IsRefresh", false); } p_tempQue = sTemp; }

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  • How to detect Windows 64 bit platform with .net?

    - by Marc
    In a .net 2.0 C# application I use the following code to detect the operating system platform: string os_platform = System.Environment.OSVersion.Platform.ToString();<br/> This returns "Win32NT". The problem is that it returns "Win32NT" even when running on Windows Vista 64bit. Is there any other method to know the correct platform (32 or 64bit)? Note that it should also detect 64bit when run as 32bit app on Windows 64bit.

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  • Installing Python egg dependencies without apt-get

    - by l0b0
    I've got a Python module which is distributed on PyPI, and therefore installable using easy_install. It depends on lxml, which in turn depends on libxslt1-dev. I'm unable to install libxslt1-dev with easy_install, so it doesn't work to put it in install_requires. Is there any way I can get setuptools to install it instead of resorting to apt-get?

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  • HARD CODED PATHS IN C#

    - by maya
    Hai I am developing an application in C#.I have a folde called myfolder it contains a file called mypoints.bmp.the folder myfolder is in my project folder it is in D drive .the path is D:\Myproject\myfolder\mypoints.bmp Now in my program whereever i need mypoints.bmp i hardcoded the wholw path.when my project is copied in to a different system under C drive i am not able to run mu project because of the hardcoded path.HOw can i give the path so that there will not be any problem evenif it is loaded in to a different system under a different drive.Please help. THAnks maya

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  • Oracle DB on solaris utilizing swap memory when free RAM available

    - by Ara
    Hi, We have a weird instance where we noticed our oracle database server swap utilization was 100% and surprised to see that the system had free memory available during that period. To my knowledge, swap memory utilization starts once system runs out of free RAM (please correct me if i'm wrong). Not sure what could have caused this unusual activity. Had anyone else experienced such behaviour? Regs,

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  • Asp.net Build error?

    - by Surya sasidhar
    hi, when i run the my asp.net application it is showing this message can u help me. Could not load file or assembly 'System.Web.Extensions.Design, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

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  • how to change windowXP theme using vb.net2005

    - by Darshna Raghani
    I have tried the following code but has no effect: Imports system.Runtime.InteropServices <DllImport("UxTheme.DLL", BestFitMapping:=False, CallingConvention:=CallingConvention.Winapi, CharSet:=CharSet.Unicode, EntryPoint:="#65")> _ Shared Function SetSystemVisualStyle(ByVal pszFilename As String, ByVal pszColor As String, ByVal pszSize As String, ByVal dwReserved As Integer) As Integer End Function Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 'This code will set Window Themes SetSystemVisualStyle("C:\WINDOWS\Resources\Themes\HmmXP_2_0_1\HmmXP\HmmXP.msstyles", "NormalColor", "NormalSize", 0) End Sub Can anyone plz help?

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  • Java - Console-like web applet.

    - by Dean
    Hey, I've been developing an application in the windows console with Java, and want to put it online in all of its console-graphics-glory. Is there a simple web applet API I can use to port my app over? I'm just using basic System.out and System.in functionality, but I'm happy to rebuild my I/O wrappers. I think something along these lines would be a great asset to any beginning Java developers who want to put their work online.

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  • Error converting datetime to string

    - by user279521
    Hi, I am getting an error when I attempt to display a datetime value in a textbox: My code is: txtStartDate.Text = rdrGetUserInfo.IsDBNull(14) ? String.Empty : Convert.ToString(rdrGetUserInfo.GetString(14)); The error message is: ex.Message = "Unable to cast object of type 'System.DateTime' to type 'System.String'." Any ideas how I can resolve this?

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  • How do I turn off a custom IValueConverter at design time?

    - by Jonathan Allen
    How do I turn off a custom IValueConverter at design time? Basically I want to write this: Public Class MethodBinder Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object Implements IValueConverter.Convert If [DESIGN_TIME] Then Return Nothing If value IsNot Nothing Then Return CallByName(value, CStr(parameter), CallType.Method) Return Nothing End Function Public Function ConvertBack(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As CultureInfo) As Object Implements IValueConverter.ConvertBack Throw New NotSupportedException End Function End Class

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  • .NET Object Dump

    - by Thomas
    Hi all, I have a question about the dump of an objet. 0:000> !do 0x012817b8 Name: blabla.Union2 MethodTable: 009231ac EEClass: 00921548 Size: 16(0x10) bytes Fields: MT Field Offset Type VT Attr Value Name 790fd0f0 4000003 4 System.Object 0 instance 00000000 o 7912d7c0 4000004 8 System.Int32[] 0 instance 00000000 arr What are the significations of : Field, Offset, VT ?

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  • HtmlHelper does not contain definition for "Action"

    - by ognjenb
    I use <%= Html.Action("ReadXML") % and have this error: 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'Action' and no extension method 'Action' accepting a first argument of type 'System.Web.Mvc.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) How fix it

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