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  • What is the best way to read GetResponseStream() ?

    - by Dev Dona
    What is the best way to read an HTTP response from GetResponseStream ? Currently I'm using the following approach. Using SReader As StreamReader = New StreamReader(HttpRes.GetResponseStream) SourceCode = SReader.ReadToEnd() End Using I'm not quite sure if this is the most effecient way to read an http response. I need the output as string, I've seen an article ( http://www.informit.com/guides/content.aspx?g=dotnet&seqNum=583 ) with a different approach but I'm not quite if it's a good one. And in my tests that code had some encoding issues with in different websites. How do you read web responses?

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  • How to check whether iterators form a contiguous memory zone?

    - by Vincent
    I currently have the following function to read an array or a vector of raw data (_readStream is a std::ifstream) : template<typename IteratorType> inline bool MyClass::readRawData( const IteratorType& first, const IteratorType& last, typename std::iterator_traits<IteratorType>::iterator_category* = nullptr ) { _readStream.read(reinterpret_cast<char*>(&*first), (last-first)*sizeof(*first)); return _readStream.good(); } First question : does this function seem ok for you ? As we read directly a block of memory, it will only work if the memory block from first to last is contiguous in memory. How to check that ?

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  • how to disable an onclick event?

    - by user1819709
    <form id="QandA" action="<?php echo htmlentities($action); ?>" method="post"> <table id="question"> <tr> <td colspan="2"> <a onclick="return plusbutton();"> <img src="Images/plussign.jpg" width="30" height="30" alt="Look Up Previous Question" class="plusimage" id="mainPlusbutton" name="plusbuttonrow"/> </a> <span id="plussignmsg">(Click Plus Sign to look up Previous Questions)</span> </td> </tr> </table> </form> In the code above I am able to replace an image with another image when the if statement is met. But my problem is that when the image is replaced, it does not disable the on click event. My question is that when the image is replaced, how do I disable the onclick event onclick="return plusbutton();?

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  • Why can I check some event handlers for null, some not?

    - by Inno
    Hi, I have a ugly piece of code that adds event handlers. The problem is, if the code is called multiple times, the event handlers are called multiple times. To solve the problem, I remove the event handler first and then add it. Now I've seen the following behaviour: Some event handlers can be checked like: if (object.event == null) { // // Code // } others of the form if (object.object.event == null) { // // Code // } I get a message like 'object.object.event' may only occur left of -= or +=. (Since I'm using a german version of visual studio, I don't know the correct translation to english). I have no idea why the behaviour looks this inconsequent so I would be grateful for some information on this. To be more specific: It's user control. if (myControl.Event == null) { // // works // } if (myControl.TreeView.NodeMouseClick == null) { // // doesn't work // }

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  • Why the streams in C++?

    - by oh boy
    As you all know there are libraries using streams such as iostream and fstream. My question is: Why streams? Why didn't they stick with functions similar to print, fgets and so on (for example)? They require their own operators << and >> but all they do could be implemented in simple functions like above, also the function printf("Hello World!"); is a lot more readable and logical to me than cout << "Hello World"; I also think that all of those string abstractions in C++ all compile down to (less efficient) standard function calls in binary.

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  • TCP socket communication

    - by raven
    hello, I am creating a Chat in java. I have a method (onMouseRelease) inside an object that creates a tcp server and waits for a socket like this: ServerSocket server = new ServerSocket(port); Socket channel = server.accept(); Now I want to make a thread that will loop and read data from the socket, so that once the user on the other side sends me a string, I will extract the data from the socket (or is it called packet? Sorry, I am new to this) and update a textbox to add the additional string from the socket (or packet?). I have no idea how to READ (extract) the information from the socket(/packet) and then update it into a JTextArea which is called userOutput. And how to send a string to the other client, so that it will also could read the new data and update its JTextArea. From what I know, for a 2 sided TCP communication you need one computer to host a server and the other to connect (as a client) and once the connection is set the client can also receive new information from the socket. Is that true? and please tell me how. Any help is appreciated! I know this is a bit long but I have searched a lot and didn't understand it (I saw something like PrintWriter but failed to understand).

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  • ActionScripting Issue: adding/removing children

    - by user1890698
    I have three movie clips all linked to the stage and I want them to behave like a button/ But I am not using a button because I have not found a way to have each part (up, over, down, hit) be animated and not just change when the mouse is in use with it. So far I have been able to have all three appear on my stage and show when I have the mouse over and as well when I click, but I think I'm doing something wrong with removeChild. Each MC should appear one at a time and now all three show up when I hover over and seem to "flash". Here's my code: var mainMoon:swayingMoon = new swayingMoon(); mainMoon.x = 50; mainMoon.y = 10; addChild(mainMoon); var hoverMoon:glowMoon = new glowMoon(); hoverMoon.x = 50; hoverMoon.y = 10; var movieMoon:clickedMoon = new clickedMoon(); movieMoon.x = 50; movieMoon.y = 10; mainMoon.addEventListener(MouseEvent.ROLL_OVER, showHoverMoon); mainMoon.addEventListener(MouseEvent.ROLL_OUT, hideHoverMoon); hoverMoon.addEventListener(MouseEvent.CLICK, startMovieMoon) function showHoverMoon(event:MouseEvent):void { addChild(hoverMoon); } function hideHoverMoon(event:MouseEvent):void { removeChild(hoverMoon) } function startMovieMoon(event:MouseEvent):void { addChild(movieMoon); }

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  • Javascript, problem with binding an event to a div-tag

    - by Patrick
    Hello, i am trying to bind an event to a dynamically created div. function GameField(playerNumber) { this.fields = new Array(); this.player = playerNumber; this.isPlayerActive = false; this.currentRound = 0; } GameField.prototype.InitField = function(fieldNumber) { var newField = document.createElement("div"); if (fieldNumber == 0 || fieldNumber == 6 || fieldNumber == 8 || fieldNumber == 17) newField.className = 'gameCellSmall borderFull gameText gameTextAlign'; else newField.className = 'gameCellSmall borderWithoutTop gameText gameTextAlign'; newField.onclick = function() { this.DivClick('a'); } this.fields[fieldNumber] = newField; return newField; } GameField.prototype.DivClick = function(fieldNumber) { alert('Nummer: ' + fieldNumber); } Everything works perfectly, but when you click on one of the created divs, i end up with the following error message: Error: Object doesn't support this property or method. If i replace the onclick function with this, then it works: newField.onclick = function() { alert('Nummer: ' + fieldNumber); } How can i get the onclick event to fire my DivClick function instead?

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  • How do I add events to nested server controls? (ASP.Net)

    - by bert
    I am building a custom master page type control i.e. sort of like a datagrid but should be easier to add custom functionality into it. It's going great but part of the desired functionality is to have a paging control that switches on and off and part of that control would be a textbox that displays the current page number and on TextChanged redirects to the new page of the dataset. The problem I'm having is that technically the textbox which has its event fired is embedded in a control that is embedded in the control you actually put on the page sort of like Page  | Display Control  | Paging Control  | Textbox Buried all the way down there the event is not firing. Worse the postback javascript isn't even being written onto the page (Nothing on the page posts back so far this is the only bit that really needs to). I've been trawling around Google for quite a while now and picked up that I need to implement INamingContainer (done) and I need to add the control into the page's control tree (is Pre_Init too late for that? When's a good time to Add the Control to the page?) then the event should fire, apparently. But I've been unable to find an example of best practice on this there are quite a few near misses where people are having button angst but this isn't a button. So can anyone point me in the direction of getting a control embedded in a control embedded in a control added to a page to behave properly?

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  • Google Anlytics event not firing

    - by yar1
    I am not getting and event data in GA. I installed Google Analytics Debugger Chrome extension and I see nothing happening (same goes when looking at Network panel in developer tools). I Googled it and read many (many) other answers and it looks like I'm doing things right. Page views, etc. are registering correctly... I have this code as the last thing before my closing tag: <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-MYREALCODE', 'mybna.net'); ga('send', 'pageview'); var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-MYREALCODE']); _gaq.push(['_trackPageview']); </script> My event handlers are done using jQuery, all inside an external js file, loaded before the closing tag. For example: $(function () { $('#show-less').click(function (e) { pbr.showHideMore(e); _gaq.push(['_trackEvent', 'ShowMore', 'Hide', 'top button']); }); }); Any ideas anyone?

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  • Another way to handle a common JQuery event handling pattern

    - by bradgonesurfing
    I have the following code for example $("a.foo").bind(function (e){ var t; if ( $(e.target).is("a") ){ t = $(e.target); }else{ t = $(e.target).parent("a"); } var data = t.attr("data-info"); }); In english. I might have a list of anchors within which there may be a number of spans. Each anchor is declared as <a class="foo" href="#" data-info="1"> <span> ... </span> <span> ... </span> </a> <a class="foo" href="#" data-info="2"> <span> ... </span> <span> ... </span> </a> ... ... I bind a handler to the click event of the anchor but the event object comes back with the anchor OR one of the spans depending on where I click. So to get my html5 "data-info" value into the callback I have to insert a bit of messy code. This is now appearing throughout my code to the point where I am guessing there might be an idiomatic JQuery way of handling this.

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  • How can I get size in bytes of an object sent using RMI?

    - by Lucas Batistussi
    I'm implementing a cache server with MongoDB and ConcurrentHashMap java class. When there are available space to put object in memory, it will put at. Otherwise, the object will be saved in a mongodb database. Is allowed that user specify a size limit in memory (this should not exceed heap size limit obviously!) for the memory cache. The clients can use the cache service connecting through RMI. I need to know the size of each object to verify if a new incoming object can be put into memory. I searched over internet and i got this solution to get size: public long getObjectSize(Object o){ try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); oos.writeObject(o); oos.close(); return bos.size(); } catch (Exception e) { return Long.MAX_VALUE; } } This solution works very well. But, in terms of memory use doesn't solve my problem. :( If many clients are verifying the object size at same time this will cause stack overflow, right? Well... some people can say: Why you don't get the specific object size and store it in memory and when another object is need to put in memory check the object size? This is not possible because the objects are variable in size. :( Someone can help me? I was thinking in get socket from RMI communication, but I don't know how to do this...

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  • Sending information down a socket in C#

    - by markyoung1984
    I have built two programs in C# and I am sending simple strings through the sockets. This is fine for the moment but in the near future I will need to send more complicated items, such as objects down the sockets and eventually files. What steps would I take to do this? What purpose do the buffers serve for the sockets/streams? Apologies if I am a little vague.

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  • Bind event to AJAX populated list items

    - by AnPel
    I have an unordered list with no list items. I get some information from the user, I run it through my database using AJAX and the servers sends back a JSON object response. Then I append each list item I want to display to the list using something like $('blabla').append('<li>information</li>') My question is, since the li elements were not there at the time the DOM was ready, how can I bind a click event to them? Here is my full code: $(function(){ var timer; $('#f').keyup(function(){ clearTimeout(timer); timer = setTimeout(getSuggestions, 400); }); }) function getSuggestions(){ var a = $('#f')[0].value.length; if( a < 3){ if(a == 0){ $('#ajaxerror').hide(300,function(){ $('#loading').hide(300,function(){ $('#suggest').hide(300) }) }) } return; } $('#loading').slideDown(200,function(){ $.ajax({ url: '/models/AJAX/suggest.php', dataType: 'json', data: {'data' : $('#f')[0].value }, success: function(response){ $('#ajaxerror').hide(0,function(){ $('#loading').hide(100,function(){ $('#suggest ul li').remove(); for(var b = 0; b < ( response.rows * 3); b = b + 3){ $('#suggest ul').append('<li>'+response[b]+' '+response[b+1]+' '+response[b+2]+'</li>') // MISSING SOME CODE HERE TO BIND CLICK EVENT TO NEWLY CREATED LI } $('#suggest').show(300) }) }) }, error: function(){ $('#suggest').hide(0,function(){ $('#loading').slideUp(100,function(){ $('#ajaxerror').show(300) }) }) } }) }) }

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  • Java's PipedReader / PipedWriter equivalents in C#?

    - by devoured elysium
    I have defined a Pipe class in Java, making use of PipedReader and PipedWriter. I am now trying to port this same class to C#. Is it possible to accomplish the same as shown in the following code in C#? public final class Pipe { private final PipedReader pipedReader = new PipedReader(); private final PipedWriter pipedWriter = new PipedWriter(); public Pipe() { pipedWriter.connect(pipedReader); } ... } I am guessing what I'll want to use in C# for PipedReader and PipedWriter will be StreamReader and StreamWriter? Is there something like a connect() method? Thanks

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  • multiple touches: touchend event fired only when a touchmove occurs

    - by dridri
    I would like to add some multitouch features to my javascript application when it is accessed from an ios device (and maybe android later). I want to provide a shiftkey-like functionality: the user may hold a button on the screen with one finger, and while this button is pressed, the behavior for a tap action on the rest of the screen is slightly different from the classic tap. The problem i'm running into is that i do not receive any touchend event for the tapping finger unless a touchmove is fired for the first finger holding the shiftkey button. Because the screen is very sensitive, touchmove events gets easily fired and in most cases everything works fine. But when the user's finger is a bit too still, the tapping is not detected until the user moves his finger a bit. This induces a variable 'delay' between the tapping and the action that occurs on the screen (the delay may vary and last a few seconds if the user is very calm). My guess is that this delay will cause the user to tap again and thus fire the action a second time, which is something that i don't want ! You can test it here with your ipad/iphone : http://jsfiddle.net/jdeXH/8/ Try to make the body remain green for a few seconds by holding your finger very still on the cyan div while tapping on the red div. Is this behavior to be expected ? Is there some known workaround for the problem ? I would have expected the touchend event to be fired right away when the finger is removed from the screen. i tested this with iOS 5.1.1 (ipad1 and iphone4s) edit: found a similar question Multitouch touchEvents not triggered as they should on Safari Mobile

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  • Google Chrome freezes for seconds

    - by Levan
    I do not know if this is the right place to write about google chrome or not so sorry if it is not after the update ,,Google Chrome 20.0.1132.47" google chrome started to lag ,,It gets stuck for couple of seconds and then it resumes" i think it starts lagging when i enter any flash site when i started chrome from the terminal it showed this before the update non of this appeared ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params ALSA lib pcm_dsnoop.c:623:(snd_pcm_dsnoop_open) unable to initialize slave Firefox does not have any problem is there a way to fix this and thank you for your time

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  • ASP.NET TextBox TextChanged event not firing in custom EditorPart

    - by Ben Collins
    This is a classic sort of question, I suppose, but it seems that most people are interested in having the textbox cause a postback. I'm not. I just want the event to fire when a postback occurs. I have created a webpart with a custom editorpart. The editorpart renders with a textbox and a button. Clicking the button causes a dialog to open. When the dialog is closed, it sets the value of the textbox via javascript and then does __doPostBack using the ClientID of the editorpart. The postback happens, but the TextChanged event never fires, and I'm not sure if it's a problem with the way __doPostBack is invoked, or if it's because of the way I'm setting up the event handler, or something else. Here's what I think is the relevant portion of the code from the editorpart: protected override void CreateChildControls() { _txtListUrl = new TextBox(); _txtListUrl.ID = "targetSPList"; _txtListUrl.Style.Add(HtmlTextWriterStyle.Width, "60%"); _txtListUrl.ToolTip = "Select List"; _txtListUrl.CssClass = "ms-input"; _txtListUrl.Attributes.Add("readOnly", "true"); _txtListUrl.Attributes.Add("onChange", "__doPostBack('" + this.ClientID + "', '');"); _txtListUrl.Text = this.ListString; _btnListPicker = new HtmlInputButton(); _btnListPicker.Style.Add(HtmlTextWriterStyle.Width, "60%"); _btnListPicker.Attributes.Add("Title", "Select List"); _btnListPicker.ID = "browseListsSmtButton"; _btnListPicker.Attributes.Add("onClick", "mso_launchListSmtPicker()"); _btnListPicker.Value = "Select List"; this.AddConfigurationOption("News List", "Choose the list that serves as the data source.", new Control[] { _txtListUrl, _btnListPicker }); if (this.ShowViewSelection) { _txtListUrl.TextChanged += new EventHandler(_txtListUrl_TextChanged); _ddlViews = new DropDownList(); _ddlViews.ID = "_ddlViews"; this.AddConfigurationOption("View", _ddlViews); } } protected override void OnPreRender(EventArgs e) { ScriptLink.Register(this.Page, "PickerTreeDialog.js", true); string lastSelectedListId = string.Empty; if (!this.WebId.Equals(Guid.Empty) && !this.ListId.Equals(Guid.Empty)) { lastSelectedListId = SPHttpUtility.EcmaScriptStringLiteralEncode( string.Format("SPList:{0}?SPWeb:{1}:", this.ListId.ToString(), this.WebId.ToString())); } string script = "\r\n var lastSelectedListSmtPickerId = '" + lastSelectedListId + "';" + "\r\n function mso_launchListSmtPicker(){" + "\r\n if (!document.getElementById) return;" + "\r\n" + "\r\n var listTextBox = document.getElementById('" + SPHttpUtility.EcmaScriptStringLiteralEncode(_txtListUrl.ClientID) + "');" + "\r\n if (listTextBox == null) return;" + "\r\n" + "\r\n var serverUrl = '" + SPHttpUtility.EcmaScriptStringLiteralEncode(SPContext.Current.Web.ServerRelativeUrl) + "';" + "\r\n" + "\r\n var callback = function(results) {" + "\r\n if (results == null || results[1] == null || results[2] == null) return;" + "\r\n" + "\r\n lastSelectedListSmtPickerId = results[0];" + "\r\n var listUrl = '';" + "\r\n if (listUrl.substring(listUrl.length-1) != '/') listUrl = listUrl + '/';" + "\r\n if (results[1].charAt(0) == '/') results[1] = results[1].substring(1);" + "\r\n listUrl = listUrl + results[1];" + "\r\n if (listUrl.substring(listUrl.length-1) != '/') listUrl = listUrl + '/';" + "\r\n if (results[2].charAt(0) == '/') results[2] = results[2].substring(1);" + "\r\n listUrl = listUrl + results[2];" + "\r\n listTextBox.value = listUrl;" + "\r\n __doPostBack('" + this.ClientID + "','');" + "\r\n }" + "\r\n LaunchPickerTreeDialog('CbqPickerSelectListTitle','CbqPickerSelectListText','websLists','', serverUrl, lastSelectedListSmtPickerId,'','','/_layouts/images/smt_icon.gif','', callback);" + "\r\n }"; this.Page.ClientScript.RegisterClientScriptBlock(typeof(ListPickerEditorPart), "mso_launchListSmtPicker", script, true); if ((!string.IsNullOrEmpty(_txtListUrl.Text) && _ddlViews.Items.Count == 0) || _listSelectionChanged) { _ddlViews.Items.Clear(); if (!string.IsNullOrEmpty(_txtListUrl.Text)) { using (SPWeb web = SPContext.Current.Site.OpenWeb(this.WebId)) { foreach (SPView view in web.Lists[this.ListId].Views) { _ddlViews.Items.Add(new ListItem(view.Title, view.ID.ToString())); } } _ddlViews.Enabled = _ddlViews.Items.Count > 0; } else { _ddlViews.Enabled = false; } } base.OnPreRender(e); } void _txtListUrl_TextChanged(object sender, EventArgs e) { this.SetPropertiesFromChosenListString(_txtListUrl.Text); _listSelectionChanged = true; } Any ideas? Update: I forgot to mention these methods, which are called above: protected virtual void AddConfigurationOption(string title, Control inputControl) { this.AddConfigurationOption(title, null, inputControl); } protected virtual void AddConfigurationOption(string title, string description, Control inputControl) { this.AddConfigurationOption(title, description, new List<Control>(new Control[] { inputControl })); } protected virtual void AddConfigurationOption(string title, string description, IEnumerable<Control> inputControls) { HtmlGenericControl divSectionHead = new HtmlGenericControl("div"); divSectionHead.Attributes.Add("class", "UserSectionHead"); this.Controls.Add(divSectionHead); HtmlGenericControl labTitle = new HtmlGenericControl("label"); labTitle.InnerHtml = HttpUtility.HtmlEncode(title); divSectionHead.Controls.Add(labTitle); HtmlGenericControl divUserSectionBody = new HtmlGenericControl("div"); divUserSectionBody.Attributes.Add("class", "UserSectionBody"); this.Controls.Add(divUserSectionBody); HtmlGenericControl divUserControlGroup = new HtmlGenericControl("div"); divUserControlGroup.Attributes.Add("class", "UserControlGroup"); divUserSectionBody.Controls.Add(divUserControlGroup); if (!string.IsNullOrEmpty(description)) { HtmlGenericControl spnDescription = new HtmlGenericControl("div"); spnDescription.InnerHtml = HttpUtility.HtmlEncode(description); divUserControlGroup.Controls.Add(spnDescription); } foreach (Control inputControl in inputControls) { divUserControlGroup.Controls.Add(inputControl); } this.Controls.Add(divUserControlGroup); HtmlGenericControl divUserDottedLine = new HtmlGenericControl("div"); divUserDottedLine.Attributes.Add("class", "UserDottedLine"); divUserDottedLine.Style.Add(HtmlTextWriterStyle.Width, "100%"); this.Controls.Add(divUserDottedLine); }

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  • Custom Paging for GridView in an UpdatePanel not firing PageIndexChanging event

    - by JeffCren
    I have a GridView that uses custom paging inside an UpdatePanel (so that the paging and sorting of the gridview don't cause postback). The sorting works fine, but the paging doesn't. The PageIndexChanging event is never called. This is the aspx code: <asp:UpdatePanel runat="server" ID="upSearchResults" ChildrenAsTriggers="true" UpdateMode="Always"> <ContentTemplate> <asp:GridView ID="gvSearchResults" runat="server" AllowSorting="true" AutoGenerateColumns="false" AllowPaging="true" PageSize="10" OnDataBound="gvSearchResults_DataBound" OnRowDataBound ="gvSearchResults_RowDataBound" OnSorting="gvSearchResults_Sorting" OnPageIndexChanging="gvSearchResults_PageIndexChanging" Width="100%" EnableSortingAndPagingCallbacks="false"> <Columns> <asp:TemplateField HeaderText="Select" HeaderStyle-HorizontalAlign="Center"> <ItemTemplate> <asp:HyperLink ID="lnkAdd" runat="server">Add</asp:HyperLink> <asp:HiddenField ID="hfPersonId" runat="server" Value='<%# Eval("Id") %>'/> </ItemTemplate> </asp:TemplateField> <asp:BoundField HeaderText="First Name" DataField="FirstName" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" SortExpression="FirstName" /> <asp:BoundField HeaderText="Last Name" DataField="LastName" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" SortExpression="LastName" /> <asp:TemplateField HeaderText="Phone Number" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" > <ItemTemplate> <asp:Label ID="lblPhone" runat="server" Text="" /> </ItemTemplate> </asp:TemplateField> </Columns> <PagerTemplate> <table width="100%" class="pager"> <tr> <td> </td> </tr> </table> </PagerTemplate> </asp:GridView> <div class="btnContainer"> <div class="btn btn-height_small btn-style_dominant"> <asp:LinkButton ID="lbtNewRecord" runat="server" OnClick="lbtNewRecord_Click"><span>Create New Record</span></asp:LinkButton> </div> <div class="btn btn-height_small btn-style_subtle"> <a onclick="openParticipantModal();"><span>Cancel</span></a> </div> </div> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="gvSearchResults" EventName="PageIndexChanging" /> <asp:AsyncPostBackTrigger ControlID="gvSearchResults" EventName="Sorting" /> </Triggers> </asp:UpdatePanel> In the code behind I have a SetPaging method that is called on the GridView OnDataBound event: private void SetPaging(GridView gv) { GridViewRow row = gv.BottomPagerRow; var place = row.Cells[0]; var first = new LinkButton(); first.CommandName = "Page"; first.CommandArgument = "First"; first.Text = "First"; first.ToolTip = "First Page"; if (place != null) place.Controls.Add(first); var lbl = new Label(); lbl.Text = " "; if (place != null) place.Controls.Add(lbl); var prev = new LinkButton(); prev.CommandName = "Page"; prev.CommandArgument = "Prev"; prev.Text = "Prev"; prev.ToolTip = "Previous Page"; if (place != null) place.Controls.Add(prev); var lbl2 = new Label(); lbl2.Text = " "; if (place != null) place.Controls.Add(lbl2); for (int i = 1; i <= gv.PageCount; i++) { var btn = new LinkButton(); btn.CommandName = "Page"; btn.CommandArgument = i.ToString(); if (i == gv.PageIndex + 1) { btn.BackColor = Color.Gray; } btn.Text = i.ToString(); btn.ToolTip = "Page " + i.ToString(); if (place != null) place.Controls.Add(btn); var lbl3 = new Label(); lbl3.Text = " "; if (place != null) place.Controls.Add(lbl3); } var next = new LinkButton(); next.CommandName = "Page"; next.CommandArgument = "Next"; next.Text = "Next"; next.ToolTip = "Next Page"; if (place != null) place.Controls.Add(next); var lbl4 = new Label(); lbl4.Text = " "; if (place != null) place.Controls.Add(lbl4); var last = new LinkButton(); last.CommandName = "Page"; last.CommandArgument = "Last"; last.Text = "Last"; last.ToolTip = "Last Page"; if (place != null) place.Controls.Add(last); var lbl5 = new Label(); lbl5.Text = " "; if (place != null) place.Controls.Add(lbl5); } The paging works if I don't use custom paging, but I really need to use the custom paging. I can't figure out why the PageIndexChanging event isn't fired when I'm using the custom paging. Thanks, Jeff

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  • How do you handle objects that need custom behavior, and need to exist as an entity in the database?

    - by Scott Whitlock
    For a simple example, assume your application sends out notifications to users when various events happen. So in the database I might have the following tables: TABLE Event EventId uniqueidentifier EventName varchar TABLE User UserId uniqueidentifier Name varchar TABLE EventSubscription EventUserId EventId UserId The events themselves are generated by the program. So there are hard-coded points in the application where an event instance is generated, and it needs to notify all the subscribed users. So, the application itself doesn't edit the Event table, except during initial installation, and during an update where a new Event might be created. At some point, when an event is generated, the application needs to lookup the Event and get a list of Users. What's the best way to link the event in the source code to the event in the database? Option 1: Store the EventName in the program as a fixed constant, and look it up by name. Option 2: Store the EventId in the program as a static Guid, and look it up by ID. Extra Credit In other similar circumstances I may want to include custom behavior with the event type. That is, I'll want subclasses of my Event entity class with different behaviors, and when I lookup an event, I want it to return an instance of my subclass. For instance: class Event { public Guid Id { get; } public Guid EventName { get; } public ReadOnlyCollection<EventSubscription> EventSubscriptions { get; } public void NotifySubscribers() { foreach(var eventSubscription in EventSubscriptions) { eventSubscription.Notify(); } this.OnSubscribersNotified(); } public virtual void OnSubscribersNotified() {} } class WakingEvent : Event { private readonly IWaker waker; public WakingEvent(IWaker waker) { if(waker == null) throw new ArgumentNullException("waker"); this.waker = waker; } public override void OnSubscribersNotified() { this.waker.Wake(); base.OnSubscribersNotified(); } } So, that means I need to map WakingEvent to whatever key I'm using to look it up in the database. Let's say that's the EventId. Where do I store this relationship? Does it go in the event repository class? Should the WakingEvent know declare its own ID in a static member or method? ...and then, is this all backwards? If all events have a subclass, then instead of retrieving events by ID, should I be asking my repository for the WakingEvent like this: public T GetEvent<T>() where T : Event { ... // what goes here? ... } I can't be the first one to tackle this. What's the best practice?

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  • Show/hide glossary page in YUI

    - by QLiu
    Hello All, I am trying to develop a toggle function like http://www.lutsr.nl/yui/toggle/ But it works a little different as them. When user enters the glossary page, he sees a full list of Alphabet with all the techical terms explaination All — A | B | C | E | G | H | M | P | Q | R | S | T | U | Z | ActiveSync® Microsoft® ActiveSync est l’ application permettant à un pocket pc d’ échanger des informations avec un ordinateur . Le Pocket PC doit utiliser Microsoft Windows Mobile™ ou Windows CE. Bluetooth® Le Bluetooth permet aux informations d’ être transmises entre les appareils électroniques qui ont le Bluetooth. Si vous utilisez le Bluetooth, vous n'avez pas besoin de connecter les périphériques à l'aide de câbles. ............................. If the user clicks B Alphabet, the rest of content will hide, except B. and B will be move to top of the section. If the user clicks All aplphabet, the whole list will be reset. What I have now, it is able to show/hide and listen to click event. Here is my source code: <a href="#A" class ="toggle" rel="A_section,fade,20"> A</a> | <a href="#B" class ="toggle" rel="B_section,fade,20"> B</a> | Script: //Load JavaScript Ready event. this.toggleLinks=YAHOO.util.Dom.getElementsByClassName("toggle"); for(var i=0; i<this.toggleLinks.length; i++) { YAHOO.util.Event.addListener(this.toggleLinks[i], "click", this.animateElements,this); } toggleElements : function(e,controlNode,refEl) { if(controlNode && refEl) { if(YAHOO.util.Dom.hasClass(refEl,"show")) { YAHOO.util.Dom.removeClass(controlNode,"selected"); YAHOO.util.Dom.removeClass(refEl,"show"); } else { YAHOO.util.Dom.addClass(controlNode,"selected"); YAHOO.util.Dom.addClass(refEl,"show"); } } // to disable control node's default behaviour return false; }, animateElements : function(e,obj) { // obj = javascript toggle object // this = link clicked YAHOO.util.Event.preventDefault(e); if(this.rel) { controlNode = this; } if(typeof(controlNode) == "string") { controlNode = YAHOO.util.Dom.get(controlNode); } // objParameters // [0] = object id // [1] = animation type (fade, slide) // [2] = animation duration (seconds) var linkClicked = this; var objParameters = controlNode.rel.split(","); var refEl = YAHOO.util.Dom.get(objParameters[0]); var objStatus = YAHOO.util.Dom.hasClass(refEl,"show"); // if true, object is shown switchClasses = function() { obj.toggleOtherElements(e,linkClicked,refEl); obj.toggleElements(e,linkClicked,refEl); } if(objParameters[1] == "fade") { if(objStatus == true) { var attributes = { opacity: {from: .999, to: 0} } var objAnim = new YAHOO.util.Anim(objParameters[0],attributes); objAnim.useSeconds = false; objAnim.duration = objParameters[2]; objAnim.onComplete.subscribe(switchClasses); objAnim.animate(); } else { YAHOO.util.Dom.setStyle(objParameters[0],"opacity",0); switchClasses(); var attributes = { opacity: {from: 0, to: .999} } var objAnim = new YAHOO.util.Anim(objParameters[0],attributes); objAnim.useSeconds = false; objAnim.duration = objParameters[2]; objAnim.animate(); } } else if (objParameters[1] == "slide") { // not implemented yet } else { // NO ANIMATION - switch classes switchClasses(); } }, toggleOtherElements : function(e,linkClicked,refEl) { // toggle selected state of other elements pointing to the same source for(var i=0; i<this.toggleLinks.length; i++) { var objParameters = this.toggleLinks[i].rel.split(","); var linkClickedParameters = linkClicked.rel.split(","); if(objParameters[0] == linkClickedParameters[0]) { if(YAHOO.util.Dom.hasClass(this.toggleLinks[i],"selected")) { YAHOO.util.Dom.removeClass(this.toggleLinks[i],"selected"); } else { YAHOO.util.Dom.addClass(this.toggleLinks[i],"selected"); } } } }

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  • How to make Net::Msmgr run?

    - by codeholic
    There's Net::Msmgr module on CPAN. It's written clean and the code looks trustworthy at the first glance. However this module seems to be beta and there is little documentation and no tests :-/ Has anyone used this module in production? I haven't managed to make it run by now, because it requires all event loop processing to be done in the application and as I've already said there is little documentation and no working examples to study. That's where I've gone so far: #!/usr/bin/perl use strict; use warnings; use Event; use Net::Msmgr::Object; use Net::Msmgr::Session; use Net::Msmgr::User; use constant DEBUG => 511; use constant EVENT_TIMEOUT => 5; # seconds my ($username, $password) = qw/[email protected] my.password/; my $buddy = '[email protected]'; my $user = Net::Msmgr::User->new(user => $username, password => $password); my $session = Net::Msmgr::Session->new; $session->debug(DEBUG); $session->login_handler(\&login_handler); $session->user($user); my $conv; sub login_handler { my $self = shift; print "LOGIN\n"; $self->ui_state_nln; $conv = $session->ui_new_conversation; $conv->invite($buddy); } our %watcher; sub ConnectHandler { my ($connection) = @_; warn "CONNECT\n"; my $socket = $connection->socket; $watcher{$connection} = Event->io(fd => $socket, cb => [ $connection, '_recv_message' ], poll => 're', desc => 'recv_watcher', repeat => 1); } sub DisconnectHandler { my $connection = shift; print "DISCONNECT\n"; $watcher{$connection}->cancel; } $session->connect_handler(\&ConnectHandler); $session->disconnect_handler(\&DisconnectHandler); $session->Login; Event::loop(); That's what it outputs: Dispatch Server connecting to: messenger.hotmail.com:1863 Dispatch Server connected CONNECT Dispatch Server >>>VER 1 MSNP2 CVR0 --> VER 1 MSNP2 CVR0 Dispatch Server >>>USR 2 MD5 I [email protected] --> USR 2 MD5 I [email protected] Dispatch Server <<<VER 1 CVR0 <-- VER 1 CVR0 And that's all, here it hangs. The handler on login is not being triggered. What am I doing wrong?

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  • How to make Net::Msmnr run?

    - by codeholic
    There's Net::Msmgr module on CPAN. It's written clean and the code looks trustworthy at the first glance. However this module seems to be beta and there is little documentation and no tests :-/ Has anyone used this module in production? I haven't managed to make it run by now, because it requires all event loop processing to be done in the application and as I've already said there is little documentation and no working examples to study. That's where I've gone so far: #!/usr/bin/perl use strict; use warnings; use Event; use Net::Msmgr::Object; use Net::Msmgr::Session; use Net::Msmgr::User; use constant DEBUG => 511; use constant EVENT_TIMEOUT => 5; # seconds my ($username, $password) = qw/[email protected] my.password/; my $buddy = '[email protected]'; my $user = Net::Msmgr::User->new(user => $username, password => $password); my $session = Net::Msmgr::Session->new; $session->debug(DEBUG); $session->login_handler(\&login_handler); $session->user($user); my $conv; sub login_handler { my $self = shift; print "LOGIN\n"; $self->ui_state_nln; $conv = $session->ui_new_conversation; $conv->invite($buddy); } our %watcher; sub ConnectHandler { my ($connection) = @_; warn "CONNECT\n"; my $socket = $connection->socket; $watcher{$connection} = Event->io(fd => $socket, cb => [ $connection, '_recv_message' ], poll => 're', desc => 'recv_watcher', repeat => 1); } sub DisconnectHandler { my $connection = shift; print "DISCONNECT\n"; $watcher{$connection}->cancel; } $session->connect_handler(\&ConnectHandler); $session->disconnect_handler(\&DisconnectHandler); $session->Login; Event::loop(); That's what it outputs: Dispatch Server connecting to: messenger.hotmail.com:1863 Dispatch Server connected CONNECT Dispatch Server >>>VER 1 MSNP2 CVR0 --> VER 1 MSNP2 CVR0 Dispatch Server >>>USR 2 MD5 I [email protected] --> USR 2 MD5 I [email protected] Dispatch Server <<<VER 1 CVR0 <-- VER 1 CVR0 And that's all, here it hangs. The handler on login is not being triggered. What am I doing wrong?

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  • Why does Perl's Net::Msmgr hang when I try to authenticate?

    - by codeholic
    There's Net::Msmgr module on CPAN. It's written clean and the code looks trustworthy at the first glance. However this module seems to be beta and there is little documentation and no tests :-/ Has anyone used this module in production? I haven't managed to make it run by now, because it requires all event loop processing to be done in the application and as I've already said there is little documentation and no working examples to study. That's where I've gone so far: #!/usr/bin/perl use strict; use warnings; use Event; use Net::Msmgr::Object; use Net::Msmgr::Session; use Net::Msmgr::User; use constant DEBUG => 511; use constant EVENT_TIMEOUT => 5; # seconds my ($username, $password) = qw/[email protected] my.password/; my $buddy = '[email protected]'; my $user = Net::Msmgr::User->new(user => $username, password => $password); my $session = Net::Msmgr::Session->new; $session->debug(DEBUG); $session->login_handler(\&login_handler); $session->user($user); my $conv; sub login_handler { my $self = shift; print "LOGIN\n"; $self->ui_state_nln; $conv = $session->ui_new_conversation; $conv->invite($buddy); } our %watcher; sub ConnectHandler { my ($connection) = @_; warn "CONNECT\n"; my $socket = $connection->socket; $watcher{$connection} = Event->io(fd => $socket, cb => [ $connection, '_recv_message' ], poll => 're', desc => 'recv_watcher', repeat => 1); } sub DisconnectHandler { my $connection = shift; print "DISCONNECT\n"; $watcher{$connection}->cancel; } $session->connect_handler(\&ConnectHandler); $session->disconnect_handler(\&DisconnectHandler); $session->Login; Event::loop(); That's what it outputs: Dispatch Server connecting to: messenger.hotmail.com:1863 Dispatch Server connected CONNECT Dispatch Server >>>VER 1 MSNP2 CVR0 --> VER 1 MSNP2 CVR0 Dispatch Server >>>USR 2 MD5 I [email protected] --> USR 2 MD5 I [email protected] Dispatch Server <<<VER 1 CVR0 <-- VER 1 CVR0 And that's all, here it hangs. The handler on login is not being triggered. What am I doing wrong?

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