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• Does TCP actually define 'TCP server' and 'TCP clients'? [closed]

  - by mjn

  In the Wikipedia article, TCP communication is explained using the terms 'client' and 'server'. It also uses the word 'peers'. But TCP actually does not define "TCP clients" and "TCP servers" - In the RFC 675 document (SPECIFICATION OF INTERNET TRANSMISSION CONTROL PROGRAM), the word "client" never appears. The RFC explains that TCP is used to connect processes over ports (sockets), and that 'A pair of sockets form a CONNECTION which can be used to carry data in either direction [i.e. full duplex]. Calling the originating party the "client" seems to be common practice. But this client/server communication model is not always applicable to TCP communication. For example take peer-to-peer networks. Calling all processes which open a socket (and wait for incoming connections from peers) "TCP servers", sounds wrong to me. I would not call my uncle's telephone device a "Telephony server" if I dial his phone number and he picks up.

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• SQL Profiles showing high activity

  - by Wong Chi

  I am running my application locally -- ie. No external traffic and very low number of queries, fully under my control. I see tons of 'Audit Login' and 'Audit Logout' events. What are these and where are they actually stored (ie. Where is this audit log)? Are these a hint of a problem with connections, because I have only a simple connection string within my app and thought that connections would remain active throughout the operation of my app (ie. a single login at launch, and then a single logout when terminating).

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• How to build SVN/Git like Diff in WebApp?

  - by 01

  I have XMLs(or Objects) that represents data at some point in a business process. I would like to be able to see what has changed between step1 and step5(two versions of the same XML or Object). Id like to implement this like diff function in version control system. how to do it in web app? P.S. I dont want to just store those files in VCS and than make it do the diff. However if I could somehow emulate VCS without having one that would be cool. P.S. I know there are some JS frameworks that offer diff functionality, but the XML could have 10MB, so I think it should be dont at server side.

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• WPF input datagrid?

  - by SAD

  I would like to create an input DataGrid - an empty set of rows with the column headers that can be filled with data by a user and then saved to a database. The DataGrid will not be therefore used to display data but acts like an input field. The behaviour would be similar to the one of Excell. The problem is that if the DataGrid has no data provided for it, it is not visible in the application and the user cannot enter anything. Is the DataGrid a good choice? How can this sort of functionality be implemented with a different control? I would prefer to use the DataGrid tough. Thanks a lot for any help on this.

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• Slow first page load on asp.net site

  - by Tabloo Quijico

  Hi, Every now and then (always after a long period of idle-time, e.g. overnight) when I access a site built using asp.net - it takes around 15 seconds to load the page (15 seconds before I see any progress whatsoever, then the page comes up fast). Further pages on that site, or refreshes, are quick as usual - they are also fast on other machines, only the first one seems to take the 'hit'. Page tracing never through anything up (whole cycle was a fraction of a second) So my question is where else should I be looking? Perhaps IIS? Or could it still be my asp.net app and I'm just looking in the wrong place (the trace) for clues? As I don't have much control over the IIS server, anything I can check through asp.net would be more helpful, before I go ask that particular admin. cheers :D

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• Java Swing UI Changing Method

  - by vigilant

  I would like to use Swing to program a simple learning game. I am wondering what would be best way to switch between UI screens. For example, I would have a screen for the Main Menu, and then when the user presses a button on that screen, I would swap out the whole screen for a completely different one. Then, arbitrary screens can be swapped in at any moment, and all of their event handlers would be reactivated while the inactive screen's event handlers will be deactivated. What type of Swing component/control would I use for each of the 'screens'. Is this even doable?

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• How can I stop XmlSerializer transforming &#234; to &amp;#234; in an attribute?

  - by paul

  I have the following DOM <row> <link href="B&#252;ro.txt" target="_blank"> my link </link> </row> When I serialize it to a file using XmlSerializer it comes out like this: <row> <link href="B&amp;#252;ro.txt" target="_blank"> my link </link> </row> Is there any way to control the way XmlSerializer handles escaping in attributes? Should I be doing this differently any way?

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• Can review changes in Acrobat Reader (Pro, or not) be 'applied' to a PDF?

  - by Danjah

  Hi there, As part of an enhancement to my workplace processes, we're trying to streamline review of various documents. Yeah, there's way better alternatives to what I'm about to suggest, but the reality is that I have no time allocated to investigate things like DAV, repo setups and such. What I do have time allocated for is improving workflow around tools we already use. So I tried to work through the Adobe PDF collaborative review cycle. I have to say it was pretty amazing, from the notify toolbar icon to doc merging, to user access control. They offer it all, EXCEPT the ability to actually apply review changes to a PDF!?! To clarify, after sending a PDF through the collab review cycle (involving a bunch for external editors and internal staff) the end result was a PDF full of rich feedback - but I can see no way to finalised and apply those 'accepted' review points to the PDF in question. I hope this is clear enough, feel free to ask questions to clarify - perhaps I'm just missing something obvious, but perhaps applying changes to an already existing PDF is not possible? -d

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• DataGridView that always has one row selected

  - by Dan Neely

  I'm using a DGV to show a list of images with text captions as a picklist. Their must always be a one and only one selection made in the list. I can't find a way to prevent the user from clearing the selection with a control-click on the selected row. Is there a property in the designer I'm missing that could do this? If I have to override the behavior in the mouse click events are there other ways the user could clear the current selection that need covered as well? Is there a third approach I could take that's less cumbersome than my second idea?

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• Any way to find out which line break char(s) to use in Javascript?

  - by Irro

  I'm trying to parse some text into a textarea control and at the same time replace all with ordinary line break chars. I have been able to do it in windows by replacing with CR (it didn't work with CRLF strangely enough, it gave me linebreak + empty space) but I'm afraid that this code won't work in Unix/Mac because they use LF for line break. Is there any way to use the system default line break char in javascript? Something similar to Environment.NewLine in .Net (I wasn't able to write backslash in this editor but I use /r for CR and /n for LF, replace / with backslash)

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• Asp.net button click populate Autocomplete for a textbox

  - by Geetha

  Hi All, I have created a keyboard using asp:button control. Onclientclick event it will display the corresponding text on the textbox. All these are working fine. Needs: I want to add autocomplete using jquery to a textbox. if i click the button [A] it has to display all the records with a. This process is working if im using the system keyboard. Code: <link href="CSS/jquery.autocomplete.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="js/jquery.autocomplete.js"></script> $("#antSearchText").autocomplete('SearchAutoComplete.ashx'); <asp:Button ID="six" runat="server" Text="6" CssClass="myclass" OnClientClick="return typeLetter(this);" /> Geetha.

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• How to change the view if I am not present in the viewController class?

  - by wolverine

  I am doing an app with about 6-7 views and their corresponding controllers. I am in a view with a toolbar and button. When I click this button a popup view comes and my control is being moved to the popup view's Controller. But my view is still the same. From this popupview Controller's class, I want to change my original view. But since I am not in my original viewControllers class, I am not able to change it. How can I overcome this? Can anyone plz help me?

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• Visual Studio keeps inserting absurd default property value in designer file

  - by Bugz R us

  i have a simple usercontrol with following properties: public partial class RichTextEditorControl : UserControl { public string EditorText { get { return richTextBox1.Rtf; } set { richTextBox1.Rtf = value; } } public string EditorPlainText { get { return richTextBox1.Text; } set { richTextBox1.Text = value; } } } Now whenever I EDIT a form which contains this control, VS fills its designer file with the following code line, and then throws a designer error : this.richTextEditorControl1.EditorPlainText = global::Project.Resources.MyResources_de_DE.SomeString; Now I don't know where it gets this value from ??? I've searched entire solution, and nowhere there's mention of this var, except for 1 file, where it's needed ... Moreover, the code VS writes, has an error in it ?! It doesn't compile ... The only thing I can do is edit the designer file, but the next time I have to edit the form with the designer, the same error happens again ... Where on earth is VS getting this value from ??

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• Stacking Dialogs in Android

  - by ChaimKut

  Is there a way to control the relative stacking of Dialogs produced by your own Activity? For instance, there are some more important Dialogs which I would like to ensure are on top and if another Dialog wants to pop up I would want it to pop under the important Dialogs. Example: I want to present to the user an important dialog, Dialog A. The activity realizes that there is a dialog, Dialog B, of lesser importance to display to the user. Is it possible to specify Dialog B to be under Dialog A so that when Dialog A is cleared, Dialog B will be seen by the user? I know that the onDismiss interface exists, but this necessarily ties Dialog A and Dialog B together. I want the Dialogs to be independent and would prefer to use a higher level abstraction like the window stack responsible for ordering the Dialogs.

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• iPhone SKD make the iPod controller appear

  - by nico

  Hi all, It's been a while I'm consulting stackoverflow, but this time I didn't find any answer :( My question is quite simple :) On an iPhone/iPod touch, play music. Double tap the home button while the music is playing. You will see appear a popup with the play/pause/next/previous buttons and a volume control. Do you know if it's possible to make this popup appear programmatically ? I mean, I would like to add a button in my app that will display the popup, avoiding the user to double tap the home button (most of them doesn't know this shortcut). Thank you in advance !

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• fixed background in IE -any resolution

  - by Krishna Priya

  Hi, In my website, I have to use the background image that is fixed in any resolution, and should not change when control+scroll. I have used the following css. /* CSS style / img.bg { / Set rules to fill background */ min-height: 100%; min-width: 1024px; /* Set up proportionate scaling */ width: 100%; height: auto; /* Set up positioning */ position: fixed; top: 0; left: 0; } @media screen and (max-width: 1024px){ img.bg { left: 50%; margin-left: -512px; } } This code working fine in Firefox, but background image is shrinking in IE browser. How to fix this issue.Anyone please help

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• Name Value Pairs in a ComboBox

  - by JamesB

  I'm convinced this must be a common problem, but I can't seem to find a simple solution... I want to use a combobox control with name value pairs as the items. ComboBox takes TStrings as its items so that should be fine. Unfortunately the drawing method on a combobox draws Items[i] so you get Name=Value in the box. I'd like the value to be hidden, so I can work with the value in code, but the user sees the name. Any Ideas?

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• Best keyboards for emacs?

  - by catphive

  For emacs users out there, what are your recommended keyboards? Bonus points for keyboards that: Have no capslock key. Instead, a control key in that position. Alt keys that are closer to the center, and easier to use with meta key combos. I find alt keys too far to the left to be a bit awkward to hit with my thumb in some key combos. Help ergonomically with emacs in other ways. I'm not a huge fan of model M style high and clacky keys. I instead prefer laptop style flat keys; however, I'm not disqualifying either category.

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• How do I create email addresses for all my users using my domain ([email protected])?

  - by rwain

  My client wants to create email addresses for all their dotnetnuke users using their domain. The point is to keep the user's email addresses 'private' while still allowing communication through a public email address that they can control. It's not necessary to have a full webmail interface (although that would be nice). I'm thinking it would be enough just to forward any mail on and just act as a gateway. So if an email was sent to [email protected], it would be forwarded on to the email address associated with the dotnetnuke account with username 'rwain'. Is this possible to do in a shared hosting environment? Or do I need to create some custom mail server that does a conversion of the email address and forwards it?

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• insert DropDownList and TextField in Gridview

  - by userk

  HI,I need to create a GridView which DataSource is an object. Depending on the object I may need some columns with DropDownLists or TextFields (but not all rows) As I don't know the number or columns, they have to be dynamic. I found this solution: TemplateField t = new TemplateField(); t.HeaderTemplate = new GridViewTemplate("header", "title"); t.ItemTemplate = new GridViewTemplate("combobox", "val"); GridView1.Columns.Add(t); GridView1.DataSource = ds; GridView1.DataBind(); Where GridViewTemplate extends ITemplate. This didn't work for me, it fills all rows of a column and I had no way to control witch DropDownList and TextFields need to be created (object info). All the DropDownLists need to have an ID also only known by the object. There are some way I can do this?

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• php most memory efficient way to return files

  - by bumperbox

  so i have a bunch of files, some can be up to 30-40mb and i want to use php to handle security of the files, so i can control who has access to them that means i have a script sort of like this rough example $has_permission = check_database_for_permission($user, filename); if ($has_permission) { header('Content-Type: image/jpeg'); readfile ($filename); exit; } else { // return 401 error } i would hate for every request to load the full file into memory, as it would soon chew up all the memory on my server with a few simultaneous requests so a couple of questions is readfile the most memory efficient way of doing this? is there some better method of achieving the same outcome, that i am overlooking? server: apache/php5 thanks

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• Want to add labels and textboxes on clicking a Href link

  - by user1740184

  I am using code in view of MVC as below <div class="form-inline"> <label class="control-label"><b>Length</b></label> <input type="text" name="Refinishing.Room.Length.Feet" id="Refinishing_Room_Length_Feet" style="width: 80px" class="floor-text" />Ft <input type="text" name="Refinishing.Room.Length.Inch" id="Refinishing_Room_Length_Inch" class="floor-text" />Inch <label><b>Width</b></label> <input type="text" name="Refinishing.Room.Width.Feet" id="Refinishing_Room_Width_Feet" class="floor-text" />Ft <input type="text" name="Refinishing.Room.Width.Inch" id="Refinishing_Room_Width_Inch" class="floor-text" />Inch<br /> <a href="#">Add Room</a> / <a href="#">Remove Room</a> </div> and I want to add the contents of "<div>" on clicking the link "Add Room". How can it be done?

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• UITableViewCell select even doesn't work

  - by saimun

  I had a page control(UIPageControl) on a view (UIViewController) with table view (UITableView) on each page, each page have own table and can go to different view controller. i add the codes in "didSelectRowAtIndexPath" which can go to next level, is works perfect when i test it in a table view by itself, but it doesn't works when i have page controller with it. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tableView deselectRowAtIndexPath:indexPath animated:YES]; if (pageNumber == 0) { PicturesViewController *picturesView = [[PicturesViewController alloc] init]; [self.navigationController pushViewController:picturesView animated:YES]; [picturesView release]; } else if (pageNumber == 1) { PictureDetailViewController *pictureDetailView = [[PictureDetailViewController alloc] init]; [self.navigationController pushViewController:pictureDetailView animated:YES]; [pictureDetailView release]; } else if (pageNumber == 2) { MessagesViewController *messagesView = [[MessagesViewController alloc] init]; [self.navigationController pushViewController:messagesView animated:YES]; [messagesView release]; } } here is the code, if view directly to this table view this code is work, how can i make it work under the pagecontrol??

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• Implementing a class for the functionality of theme managing :

  - by Malcolm

  I have a class library silverlight project , so thee is no app xaml in it. I am defining all my styles in one ResourceDictionary xaml(So that every style i defined inside my project be globel). Now if i want to apply a style to a custom control which don't have its xaml ..only .cs : Then i can do it with the help of some class which will have the functionality to apply the style defined in the resource dictionary. But I dont know hoe this functionality will be achieved, so any help will be gratefull. Thanks in advance.

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• Populating a WPF listbox with items from an SQL (SDF) database

  - by xplinux557

  I have been searching on how to do this for a very long time, and I have not managed to get a straight answer on the subject, so hopefully one of you StackOverflow users will be able to help me here. I have a WPF ListBox named CategoryList and a SDF database called ProgramsList.sdf (with two tables called CategoryList and ProgramsList). What I wish my program to do is get the category names from the CategoryList table and list them in the ListBox control called CategoryList. Here's the code that I tried, but it only caused my program to crash. SqlConnection myConnection = new SqlConnection("Data Source=" + AppDomain.CurrentDomain.BaseDirectory + "ProgramsList.sdf"); SqlDataReader myReader = null; myConnection.Open(); CategoryList.Items.Clear(); SqlDataReader dr = new SqlCommand("SELECT Name FROM CategoryList ORDER BY Name DESC", myConnection).ExecuteReader(); while (myReader.Read()) { CategoryList.Items.Add(dr.GetInt32(0)); } myConnection.Close(); Can anyone help me? Thanks in advance!

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