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  • WPF ItemsViewSource Sorting

    - by niao
    Greetings, I have a problem with sorting ItemsViewSource in WPF. The problem is as follows: My application has a listbox with items, there is a possibility to add new items to this listbox. I have ItemsViewSource which is binded to ListBox ItemsSource - by default some sortDescription is applied (by name) so when new item is added to the listbox it is automatically added to appopriate position in ListBox. I also have a ToggleButton named "No sorting" and what I would like to achieve - when this butt is pressed and new item is added to listbox, the item will be included in the first position in ListBox and additionally previous sorting will be preserved. I can achieve the functionality of adding new item to first position on the list by calling _ItemsViewSource.SortDescriptions.Clear(); but then my previous sorting is not preserved. How can I achieve this and preserve previous sorting? Thanks in advance.

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  • Java interface to Windows communications? (OLE, OPC, DDE)

    - by Jared
    I need to integrate an off-the-shelf Windows application with a Java application. At a few key points, I need the Windows application to send an "event" and some data to the Java application. The Windows application anticipated this need, and can be configured to "Poke a DDE Item", "Set an OLE Auto-Property" or "Write an OPC Item". I'm already using JACOB to call COM methods and set COM properties on a COM object. However, I'm guessing that's pretty unrelated to these "event" notification capabilities. Anyone have any experience calling FROM a Windows application to a "DDE Item", "OLE Auto-Property" or "OPC Item" that's actually in a JVM? Any pointers, advice, etc, would be appreciated.

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  • Actionscript 3 and nested lists

    - by Hanpan
    Hi, I have the following code in my XML (EDIT:) which I am trying to show in a RichText using htmlText. <ul> <li>List Item 1 <ul> <li>List Item 2</li> </ul> </li> </ul> Unfortunately, Flash doesn't seem to support nested lists, and I am getting output which looks like this: List item 1 List item 2 Where I want the second ul to be indented further. Any ideas would be much appreciated! Cheers

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  • How To Get all ITEMS from Folders and Sub-folders of PublicFolders

    - by user1891567
    How to retrieve all items from "public folders" and its "sub-folders" in exchange server2010 uisng managed API??? rootfolder = Folder.Bind(service,WellKnownFolderName.PublicFoldersRoot); rootfolder.Load(); foreach (Folder folder in rootfolder.FindFolders(new FolderView(int.MaxValue))) { FindItemsResults<Item> findResults = folder.FindItems(iv); foreach (Item item in findResults) { //get item info; } } "If i do like this i am not getting items present in sub-folders of it..public folders does not support deep traversal queries too..How can i get items from sub-folders of public folders???"

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  • UpdatePanel, Repeater, DataBinding Problem

    - by Gordon Carpenter-Thompson
    In a user control, I've got a Repeater inside of an UpdatePanel (which id displayed inside of a ModalPopupExtender. The Repeater is databound using an array list of MyDTO objects. There are two buttons for each Item in the list. Upon binding the ImageURL and CommandArgument are set. This code works fine the first time around but the CommandArgument is wrong thereafter. It seems like the display is updated correctly but the DTO isn't and the CommandArgument sent is the one that has just been removed. Can anybody spot any problems with the code? ASCX <asp:UpdatePanel ID="ViewDataDetail" runat="server" ChildrenAsTriggers="true"> <Triggers> <asp:PostBackTrigger ControlID="ViewDataCloseButton" /> <asp:AsyncPostBackTrigger ControlID="DataRepeater" /> </Triggers> <ContentTemplate> <table width="100%" id="DataResults"> <asp:Repeater ID="DataRepeater" runat="server" OnItemCommand="DataRepeater_ItemCommand" OnItemDataBound="DataRepeater_ItemDataBound"> <HeaderTemplate> <tr> <th><b>Name</b></th> <th><b>&nbsp;</b></th> </tr> </HeaderTemplate> <ItemTemplate> <tr> <td> <b><%#((MyDTO)Container.DataItem).Name%></b> </td> <td> <asp:ImageButton CausesValidation="false" ID="DeleteData" CommandName="Delete" runat="server" /> <asp:ImageButton CausesValidation="false" ID="RunData" CommandName="Run" runat="server" /> </td> </tr> <tr> <td colspan="2"> <table> <tr> <td>Description : </td> <td><%#((MyDTO)Container.DataItem).Description%></td> </tr> <tr> <td>Search Text : </td> <td><%#((MyDTO)Container.DataItem).Text%></td> </tr> </table> </td> </tr> </ItemTemplate> </asp:Repeater> </table> </ContentTemplate> </asp:UpdatePanel> Code-Behind public DeleteData DeleteDataDelegate; public RetrieveData PopulateDataDelegate; public delegate ArrayList RetrieveData(); public delegate void DeleteData(String sData); protected void Page_Load(object sender, EventArgs e) { //load the initial data.. if (!Page.IsPostBack) { if (PopulateDataDelegate != null) { this.DataRepeater.DataSource = this.PopulateDataDelegate(); this.DataRepeater.DataBind(); } } } protected void DataRepeater_ItemCommand(object source, RepeaterCommandEventArgs e) { if (e.CommandName == "Delete") { if (DeleteDataDelegate != null) { DeleteDataDelegate((String)e.CommandArgument); BindDataToRepeater(); } } else if (e.CommandName == "Run") { String sRunning = (String)e.CommandArgument; this.ViewDataModalPopupExtender.Hide(); } } protected void DataRepeater_ItemDataBound(object source, RepeaterItemEventArgs e) { RepeaterItem item = e.Item; if (item != null && item.DataItem != null) { MyDTO oQuery = (MyDTO)item.DataItem; ImageButton oDeleteControl = (ImageButton) item.FindControl("DeleteData"); ImageButton oRunControl = (ImageButton)item.FindControl("RunData"); if (oDeleteControl != null && oRunControl !=null) { oRunControl.ImageUrl = "button_expand.gif"; oRunControl.CommandArgument = "MyID"; oDeleteControl.ImageUrl = "btn_remove.gif"; oDeleteControl.CommandArgument = "MyID"; } } } public void BindDataToRepeater() { this.DataRepeater.DataSource = this.PopulateDataDelegate(); this.DataRepeater.DataBind(); } public void ShowModal(object sender, EventArgs e) { BindDataToRepeater(); this.ViewDataModalPopupExtender.Show(); }

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  • VB.NET 2008 - Anonymous Function

    - by James Brauman
    Hi, On Form Load I populate a menu with all possible colors so they user can pick a color. However when they pick a color the forecolor of my label is not changed. Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ' When the form loads, we want to populate the color menu item with all the possible colors that we could change the label to. For Each currentColor As KnownColor In [Enum].GetValues(GetType(KnownColor)) ' Declare the knowColor again - we must do this to be able to do anonymous delegates in VB.NET Dim actualCurrentColor As KnownColor = currentColor ' Get the name for this color Dim colorName As String = [Enum].GetName(GetType(KnownColor), actualCurrentColor) ' Create a new menu item for this color Dim newMenuItem As ToolStripMenuItem = New ToolStripMenuItem(colorName) ' Add a handler to this menu item so when it is clicked, we change the heading color AddHandler newMenuItem.Click, Function(s As System.Object, events As System.EventArgs) (HeadingLabel.ForeColor = Color.FromKnownColor(actualCurrentColor)) ' Add the menu item to the colors menu ColorToolStripMenuItem.DropDownItems.Add(newMenuItem) Next End Sub What am I doing wrong? Thanks

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  • Objective-C error... Cannot convert to pointer type (int)

    - by Flash84x
    I am attempting to use the TouchXML library and followed the example with the following code for (CXMLElement node in nodes) { NSMutableDictionary *item = [[NSMutableDictionary alloc] init]; int counter; for (counter = 0; counter < [node childCount]; counter++ ) { [item setObject:[[node childAtIndex:counter] stringValue] forKey:[[node childAtIndex:counter] name]]; } [rst addObject:item]; [item release]; } The compiler however is complaining about counter and throwing the following error for counter = 0 and both occurances in the setObject call. Cannot convert to pointer type Any help with my rusty C/ObjC would be appreciated

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  • How do I stop a datagrid's first-row itemRenderer from instantiating/adding/initializing/etc twice?

    - by Michael Prescott
    In a Flex DataGrid's first row, the itemRenderer will initialize twice. Tracing the results reveals that the flex framework is possibly creating two instances of the first row's itemRenderer. In a more complex application, where the itemRenderer contains a data-bound ColorPicker, we're seeing an infinite loop occur because of this problem. Only the first row's itemRenderer is initialized twice. Is there a way to override flex's behavior and stop this from occurring? The following code demonstrates the problem: Main Application: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="on_initialize(event);"> <mx:Script> <![CDATA[ /** * This experiment shows how the first row's itemrenderer is instantiated/added/initialized twice. * We've never even noticed this before we found that a data-bound ColorPicker enters a infinite * loop when it is within an itemRenderer. */ import mx.collections.ArrayCollection; import mx.events.FlexEvent; private var dg_array:Array; private var dg_arrayCollection:ArrayCollection; private function on_initialize(event:FlexEvent):void { dg_array = new Array(); dg_arrayCollection = new ArrayCollection(); dg_arrayCollection.addItem("item 1"); dg_arrayCollection.addItem("item 2"); dg.dataProvider = dg_arrayCollection; } ]]> </mx:Script> <mx:DataGrid id="dg" width="100%" height="100%" rowCount="5"> <mx:columns> <mx:DataGridColumn headerText="Name" itemRenderer="SimpleItemRenderer"/> </mx:columns> </mx:DataGrid> </mx:Application> SimpleItemRenderer: <?xml version="1.0" encoding="utf-8"?> <mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300" initialize="//on_initialize(event);"> <mx:Script> <![CDATA[ import mx.events.FlexEvent; [Bindable] override public function set data(value:Object):void { _data = value; } override public function get data():Object { return _data; } private var _data:Object; private function on_initialize_textInput(event:FlexEvent):void { trace("initialize:event.target="+event.target+", " + _data); // runs twice, for the first item only } private function on_creationComplete_textInput(event:FlexEvent):void { trace("creationComplete:event.target="+event.target+", " + _data); // runs twice, for the first item only } ]]> </mx:Script> <mx:TextInput text="{data}" id="textInput" initialize="on_initialize_textInput(event);" creationComplete="on_creationComplete_textInput(event);"/> </mx:Canvas> Abbreviated Output: initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer12.textInput, null initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer24.textInput, null creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer24.textInput, item 1 initialize:event.target=ItemRenderers0.dg...SimpleItemRenderer29.textInput, null creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer29.textInput, item 2 creationComplete:event.target=ItemRenderers0.dg...SimpleItemRenderer12.textInput, item 1

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  • Using dispatchertimer in combination with an asynchroneous call

    - by Civelle
    Hi. We have an issue in our Silverlight application which uses WCF and Entity Framework, where we need to trap the event whenever a user shuts down the application by closing the web page or the browser instead of closing the silverlight application. This is in order to verify if any changes have been made, in which case we would ask the user if he wants to save before leaving. We were able to accomplish the part which consists in trapping the closing of the web page: we wrote some code in the application object that have the web page call a method in the silverlight application object. The problem starts when in this method, we do an asynchroneous call to the Web Service to verify if changes have occured (IsDirty). We are using a DispatcherTimer to check for the return of the asynchroneous call. The problem is that the asynchroneous call never completes (in debug mode, it never ends up stepping into the _BfrServ_Customer_IsDirtyCompleted method), while it used to work fine before we added this new functionality. You will find belowthe code we are using. I am new to writing timers in combination with asynchroneous call so I may be doing something wrong but I cannot figure out what. I tried other things also but we without any success.. ====================== CODE ============================================== 'Code in the application object Public Sub New() InitializeComponent() RegisterOnBeforeUnload() _DispatcherTimer.Interval = New TimeSpan(0, 0, 0, 0, 500) End Sub Public Sub RegisterOnBeforeUnload() 'Register Silverlight object for availability in Javascript. Const scriptableObjectName As String = "Bridge" HtmlPage.RegisterScriptableObject(scriptableObjectName, Me) 'Start listening to Javascript event. Dim pluginName As String = HtmlPage.Plugin.Id HtmlPage.Window.Eval(String.Format("window.onbeforeunload = function () {{ var slApp = document.getElementById('{0}'); var result = slApp.Content.{1}.OnBeforeUnload(); if(result.length 0)return result;}}", pluginName, scriptableObjectName)) End Sub Public Function OnBeforeUnload() As String Dim userControls As List(Of UserControl) = New List(Of UserControl) Dim test As Boolean = True If CType(Me.RootVisual, StartPage).LayoutRoot.Children.Item(0).GetType().Name = "MainPage" Then If Not CType(CType(Me.RootVisual, StartPage).LayoutRoot.Children.Item(0), MainPage).FindName("Tab") Is Nothing Then If CType(CType(Me.RootVisual, StartPage).LayoutRoot.Children.Item(0), MainPage).FindName("Tab").Items.Count = 1 Then For Each item As TabItem In CType(CType(Me.RootVisual, StartPage).LayoutRoot.Children.Item(0), MainPage).Tab.Items If item.Content.GetType().Name = "CustomerDetailUI" _Item = item WaitHandle = New AutoResetEvent(False) DoAsyncCall() Exit End If Next End If End If End If If _IsDirty = True Then Return "Do you want to save before leaving." Else Return String.Empty End If End Function Private Sub DoAsyncCall() _Item.Content.CheckForIsDirty(WaitHandle) 'This code resides in the CustomerDetailUI UserControl - see below for the code End Sub Private Sub _DispatcherTimer_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles _DispatcherTimer.Tick If Not _Item.Content._IsDirtyCompleted = True Then Exit Sub End If _DispatcherTimerRunning = False _DispatcherTimer.Stop() ProcessAsyncCallResult() End Sub Private Sub ProcessAsyncCallResult() _IsDirty = _Item.Content._IsDirty End Sub 'CustomerDetailUI code Public Sub CheckForIsDirty(ByVal myAutoResetEvent As AutoResetEvent) _AutoResetEvent = myAutoResetEvent _BfrServ.Customer_IsDirtyAsync(_Customer) 'This method initiates asynchroneous call to the web service - all the details are not shown here _AutoResetEvent.WaitOne() End Sub Private Sub _BfrServ_Customer_IsDirtyCompleted(ByVal sender As Object, ByVal e As BFRService.Customer_IsDirtyCompletedEventArgs) Handles _BfrServ.Customer_IsDirtyCompleted If _IsDirtyFromRefesh Then _IsDirtyFromRefesh = False If e.Result = True Then Me.Confirm("This customer has been modified. Are you sure you want to refresh your data ? " & vbNewLine & " Your changes will be lost.", "Yes", "No", Message.CheckIsDirtyRefresh) End If Busy.IsBusy = False Else If e.Result = True Then _IsDirty = True Me.Confirm("This customer has been modified. Would you like to save?", "Yes", "No", Message.CheckIsDirty) Else Me.Tab.Items.Remove(Me.Tab.SelectedItem) Busy.IsBusy = False End If End If _IsDirtyCompleted = True _AutoResetEvent.Set() End Sub

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  • jQuery - manipulate dropped element in sortable list

    - by WastedSpace
    Hi there, I have a draggable list (.field) where you can drag & drop items from it into a sortable list (.sortlist). I did it this way because I didn't want the master list (.field) altered in any way. It works fine, except I cannot work out how to manipulate the dropped field in a sortable list. I can do it from a draggable into a droppable area by using the following in a function for 'drop:' in droppable(): $(this).append('html code here to change content of dragged field'); However this doesn't work inside a sortable(). My code looks like this: $(".sortlist").sortable({ receive: function(event, ui) { var dropElemTxt = $(ui.item).text(); var dropElemId = $(ui.item).attr('id'); $(ui.item).replaceWith('<li class="box" id="'+dropElemId+'">Updated field! '+dropElemTxt+'</li>'); } }); $(ui.item).replaceWith changes the master field that was being dragged, so this doesn't work. And I tried $(this).replaceWith, but that updates the sortable area (.sortlist). Any idea what code I need to reference the dragged item? Many thanks, Ali.

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  • Python: speed up removal of every n-th element from list.

    - by ChristopheD
    I'm trying to solve this programming riddle and althought the solution (see code below) works correct, it is too slow for succesful submission. Any pointers as how to make this run faster? (removal of every n-th element from a list)? Or suggestions for a better algorithm to calculate the same; seems I can't think of anything else then brute-force for now... Basically the task at hand is: GIVEN: L = [2,3,4,5,6,7,8,9,10,11,........] 1. Take the first remaining item in list L (in the general case 'n'). Move it to the 'lucky number list'. Then drop every 'n-th' item from the list. 2. Repeat 1 TASK: Calculate the n-th number from the 'lucky number list' ( 1 <= n <= 3000) My current code (it calculates the 3000 first lucky numbers in about a second on my machine - but unfortunately too slow): """ SPOJ Problem Set (classical) 1798. Assistance Required URL: http://www.spoj.pl/problems/ASSIST/ """ sieve = range(3, 33900, 2) luckynumbers = [2] while True: wanted_n = input() if wanted_n == 0: break while len(luckynumbers) < wanted_n: item = sieve[0] luckynumbers.append(item) items_to_delete = set(sieve[::item]) sieve = filter(lambda x: x not in items_to_delete, sieve) print luckynumbers[wanted_n-1]

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  • f:ajax problem JSF

    - by Nitesh Panchal
    This is my code :- <p:carousel var="item" animate="true" circular="true" rows="2" effect="easeOutStrong" value="#{RegisterBean.objBlogTemplateList}"> <h:inputHidden id="hdnBlogTemplateId" binding="#{RegisterBean.hdnBlogTemplateId}" value="#{item.templateId}"/> <h:graphicImage alt="#{item.templatePicName}" style="border: solid 5px white;width: 200px;height: 200px;" value="#{app:getCommonImagePath(item.templatePicName)}"> <f:ajax event="click" execute="hdnBlogTemplateId" listener="#{RegisterBean.setBlogTheme}"/> </h:graphicImage> </p:carousel> This is my managed bean code :- private HtmlInputHidden hdnBlogTemplateId; public HtmlInputHidden getHdnBlogTemplateId() { return hdnBlogTemplateId; } public void setHdnBlogTemplateId(HtmlInputHidden hdnBlogTemplateId) { this.hdnBlogTemplateId = hdnBlogTemplateId; } public void setBlogTheme(AjaxBehaviorEvent e){ System.out.println("Hello"); //System.out.println(hdnBlogTemplateId.getValue()); //System.out.println(objGraphic.toString()); } Hello is never printed in my console. Please help.

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  • Does subTable support reRender?

    - by Tom
    Here is a minimal rich:dataTable with an a4j:commandLink inside. When clicked it sends an AJAX request to my bean and reRenders the dataTable. <rich:dataTable id="dataTable" value="#{carManager.all}" var="item"> <rich:column> <f:facet name="header">name</f:facet> <h:outputText value="#{item.name}" /> </rich:column> <rich:column> <f:facet name="header">action</f:facet> <a4j:commandLink reRender="dataTable" value="Delete" action="#{carForm.delete}"> <f:setPropertyActionListener value="#{item.id}" target="#{carForm.id}" /> <f:param name="from" value="list" /> </a4j:commandLink> </rich:column> </rich:dataTable> The exmaple obove works fine so far. But when I add a rich:subTable to the table, reRendering fails... <rich:dataTable id="dataTable" value="#{garageManager.all}" var="garage"> <f:facet name="header"> <rich:columnGroup> <rich:column>name</rich:column> <rich:column>action</rich:column> </rich:columnGroup> </f:facet> <rich:column colspan="2"> <h:outputText value="#{garage.name}" /> </rich:column> <rich:subTable value="#{garage.cars}" var="car"> <rich:column><h:ouputText value="#{car.name}" /></rich:column> <rich:column> <a4j:commandLink reRender="dataTable" value="Delete" action="#{carForm.delete}"> <f:setPropertyActionListener value="#{item.id}" target="#{carForm.id}" /> <f:param name="from" value="list" /> </a4j:commandLink> </rich:column> </rich:column> </rich:dataTable> Now the rich:dataTable is not rerendered but the item gets deleted since the item does not show up after a complete page refresh. Does subTable support reRender the way i'd like to use it here? Tanks Tom

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  • How can I dynamically set the event handler for a TabItem when it is selected?

    - by juharr
    In XAML you can do <TabItem Selector.Selected="myEvenHandler"></TabItem> to set the event handler for when that tab is selected. How can I do the exact same thing dynamically. I would prefer not to use the SelectionChanged event of TabControl if I can help it. Clearly there is a Selected event on the TabItem I just cannot seem to get at it in code. Here's what I'd like to do. TabItem item = new TabItem(); MyCustomControl mcc = new MyCustomControl(); item.Content = mcc; item.Selected += (s,e) => // This event does not exist { selectedControl = mcc; } myTabControl.Items.Add(item);

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  • reset, Tweener, AS3

    - by VideoDnd
    How do I reset my numbers after they count? I want something like an onComplete function. DESCRIPTION My animation advances 120 pixels from it's current position, then flys off the stage. It was looping, and would yoyo to the bottom before advancing. I don't want my numbers yoyoing or flying off the stage. My numbers must move 120 pixels forward each count, then return. NumbersView.as 'the code works, but in a messed up way as described' package { import flash.display.DisplayObject; import flash.display.MovieClip; import flash.utils.Dictionary; import flash.events.Event; import caurina.transitions.Tweener; public class NumbersView extends MovieClip { private var _listItems:Array; private var previousNums:Array; private const numHeight:int = 120; public function NumbersView() { _listItems = new Array(); previousNums = new Array(); //Tweener.init(); var item:NumberImage; for (var i:Number = 0; i < 9; i++) { item = new NumberImage(); addChild(item); item.x = i * item.width; _listItems.push(item); } } public function setTime($number:String):void { var nums:Array = $number.split(""); //trace("$number = " + $number); for (var i:Number = 0; i < nums.length; i++) { if (nums[i] == previousNums[i]) continue; Tweener.removeTweens(_listItems[i]); //newY:int = -numHeight; var newY:int = int(nums[i]) * -numHeight; trace("newY = " + newY); trace("currY = " + _listItems[i].y); /*----------------------PROBLEM AREA, RIGHT HERE------------------------*/ //if (_listItems[i].y < 0) _listItems[i].y = numHeight;// //Tweener.addTween(_listItems[i], { y:newY, time:3 } );// Tweener.addTween(_listItems[i], { y:_listItems[i].y+newY, time:3 } );// } previousNums = nums; } } } Tweener Example http://hosted.zeh.com.br/tweener/docs/en-us/parameters/onComplete.html

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  • Convert 2 bytes to a number

    - by Vaccano
    I have a control that has a byte array in it. Every now and then there are two bytes that tell me some info about number of future items in the array. So as an example I could have: ... ... Item [4] = 7 Item [5] = 0 ... ... The value of this is clearly 7. But what about this? ... ... Item [4] = 0 Item [5] = 7 ... ... Any idea on what that equates to (as an normal int)? I went to binary and thought it may be 11100000000 which equals 1792. But I don't know if that is how it really works (ie does it use the whole 8 items for the byte). Is there any way to know this with out testing? Note: I am using C# 3.0 and visual studio 2008

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  • What causes exception in string.concat

    - by Budda
    Here are few classes: public class MyItem : ParamOut { public string Code { get { return _quoteCode; } } public InnerItem[] Skus { get { return _skus; } } public PriceSummary Price { get { return _price; } } public override string ToString() { return string.Concat("Code=", Code, "; SKUs=[", Skus != null ? "{" + string.Join("},{", Array.ConvertAll(Skus, item => item.ToString())) + "}" : "", "]" , "; Price={", Price.ToString(), "}", base.ToString() ); } ... } public abstract class ParamOut { public override string ToString() { return null; } public string ErrorMessage { get; set; } } Here is calling functionality: { MyItem item = new MyItem{ ErrorMessage = "Bla-bla-bla" }; string text = item.ToString(); } I am getting NullReference exception inside of 'ToString()' method (each property of item variable is null). Question: Q1. what overload of string.Concat will be called in this case? I have 9 parameters, so I guess one of the following: public static string Concat(params Object[] args) or public static string Concat(params string[] values) But which of them? Q2. Why exception is generated? Shouldn't 'null' be converted into something like 'null' or "" (empty string)? Thanks a lot!

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  • Fetched Property in XCode Data Model Editor for minimum value

    - by wal
    How do I add a Fetched Property in XCode's Data Model Editor for minimum value of one attribute?? My model: Item (name, note, storedItem) StoredItem (price, item) Item 1 ---> N StoredITem (1->N Relationship) I want that Item has a fetched property named minPrice and its value is the minimum value setted for price in the storedItems. Example: Item1 (banana, storedItem1 ... storedItem4, 10) StoredItem1 (10,item1) StoredItem2 (15,item1) StoredItem3 (30,item1) StoredItem4 (54,item1) What do I put in Destination?? StoredItem? And what do I put in Expression??

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  • Layout does not show up after Activity launch

    - by Peter
    I have an activity which invokes an onItemClick and launches another activity. This activity has a static layout(for testing purposes), but only thing I see is black(I even set the text color to white to check it out). My listener list.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) { //create new intent Intent item = new Intent(getApplicationContext(), Item.class); // Close all views before launching logged //item.putExtra("name", ((TextView)arg1).getText()); //item.putExtra("uid", user_id); item.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(item); // Close Login Screen onPause(); } }); My activity is here(not much to do it just launches the layout) public class Item extends Activity{ protected SQLiteDatabase myDB=null; protected String name; protected int uid; TextView yeart,year,itemname,comment,commentt,value,valuet,curr,currt; protected void onStart(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.herp); /*name=getIntent().getStringExtra("name"); uid=Integer.parseInt(getIntent().getStringExtra("uid")); itemname=(TextView) findViewById(R.id.itemName);//itemname.setText(name); year=(TextView) findViewById(R.id.itemYear); yeart=(TextView) findViewById(R.id.year); comment=(TextView) findViewById(R.id.itemComments); commentt=(TextView) findViewById(R.id.comments); curr=(TextView) findViewById(R.id.itemcurrent); currt=(TextView) findViewById(R.id.current); value=(TextView) findViewById(R.id.itemValue); valuet=(TextView) findViewById(R.id.value);*/ Database openHelper = new Database(this); myDB = openHelper.getReadableDatabase(); myDB=SQLiteDatabase.openDatabase("data/data/com.example.login2/databases/aeglea", null, SQLiteDatabase.OPEN_READONLY); }} And finally my XML layout <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="@+id/itemName" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="asdasd" android:gravity="center" android:layout_marginBottom="10px" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#fff" /> <TextView android:id="@+id/current" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Current" android:textSize="20dp" android:textStyle="bold" /> <TextView android:id="@+id/itemcurrent" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="asdasd" /> <TextView android:id="@+id/year" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Year" android:textSize="20dp" android:textStyle="bold" /> <TextView android:id="@+id/itemYear" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="asdasd" /> <TextView android:id="@+id/value" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Value" android:textSize="20dp" android:textStyle="bold" /> <TextView android:id="@+id/itemValue" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="TextView" /> <TextView android:id="@+id/comments" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Comments" android:textSize="20dp" android:textStyle="bold" /> <TextView android:id="@+id/itemComments" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="TextView" /> </LinearLayout>

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  • OOP Design of items in a Point-of-Sale system

    - by Jonas
    I am implementing a Point-of-Sale system. In the system I represent an Item in three places, and I wounder how I should represent them in OOP. First I have the WarehouseItem, that contains price, purchase price, info about the supplier, suppliers price, info about the product and quantity in warehouse. Then I have CartItem, which contains the same fields as WarehouseItem, but adds NrOfItems and Discount. And finally I have ReceiptItem, thats contains an item where I have stripped of info about the supplier, and only contains the price that was payed. Are there any OOP-recommendations, best-practices or design patterns that I could apply for this? I don't really know if CartItem should contain (wrap) an WarehouseItem, or extend it, or if I just should copy the fields that I need. Maybe I should create an Item-class where I keep all common fields, and then extend it to WarehouseItem, CartItem and ReceiptItem. Sometimes I think that it is good to keep the field of the item and just display the information that is needed.

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  • c# windows forms link button to listview

    - by Richard
    Hi, I am using c# windows forms. I have multiple buttons linked to a listview which when a button is pressed, a new item is added to the listview. The column headers in the listview are 'Name' and 'Amount'. When a different button is pressed, a different item is added to the listview. The thing i need help with is as follows: When the same button is pressed twice, I want the amount to go from "1" to "2" on the second click. So the item name isnt duplicated but the amount is increase. The problem is I am using text to link the button to the linklist at the moment e.g. ("Coca Cola", "1") which adds the item name as coca cola and the amount as 1. I know it is something to do with integers so please help!! Thanks

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  • Scrollable list items in jQuery

    - by Giles B
    Hi Guys, I have a list of 4 items and the ul has a background image that makes the second item look as though it has an arrow behind it. I want to be able to scroll the items up or down when they are clicked to the second items position so for example when I click the fourth item the whole list scrolls up so the fourth item is then postioned over the top of the background image and all the other items will be sitting in the same order above it. I have tried using jQuery Tools with the circular option selected but it clones the first an last item and i end up with a gap when i get to the bottom and I also cant make each item selectable to scroll the list up or down. Here is the code for the list <div id="priceGuide"> <ul id="priceRegion"> <li><a href="#">North & Midlands</a></li> <li><a href="#">London, north of the river</a></li> <li><a href="#">London, south of the river</a></li> <li><a href="#">South & South East</a></li> </ul><!-- /priceRegion --> </div><!-- /priceGuide --> Any help is most appreciated. Thanks Giles

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  • LINQ To objects: Quicker ideas?

    - by SDReyes
    Do you see a better approach to obtain and concatenate item.Number in a single string? Current: var numbers = new StringBuilder( ); // group is the result of a previous group by var basenumbers = group.Select( item => item.Number ); basenumbers.Aggregate ( numbers, ( res, element ) => res.AppendFormat( "{0:00}", element ) );

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  • changing user permissions dynamically

    - by ephieste
    I am designing a system on SharePoint. There is a approval list for the items. The members can approve, reject and edit the items. One from approval list has to fill the "assigned to" field in the item while approving it. The user who is added to "assigned to" field should able to edit the content of the item after it is approved. So, how can I give the edit permission to the users after they are added assigned to field of a specific item? The situation is: approval list: A, B ,C (edit, view permission) users: x,y,z .... (no permission, view after approval) items: item1, item2, item3.... items are invisible. A approved the item1 and added X to "assigned to" field. It means This item is under X's responsibility. But X hasn't got edit permission. we can't give edit permission to X for every item. He should edit the items after he is written into the "assigned to" field. How can I create this workflow in SharePoint? Please urgent help needed.

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  • Merge replication server side foreign key violation from unpublished table

    - by Reiste
    We are using SQL Server 2005 Merge Replication with SQL CE 3.5 clients. We are using partitions with filtering for the separate subscriptions, and nHibernate for the ORM mapping. There is automatic ID range management from SQL Server for the subscriptions. We have a table, Item, and a table with a foreign key to Item - ItemHistory. Both of these are replicated down, filtered according to the subscription. Item has a column called UserId, and is filtered per subscription with this filter: WHERE UserId IN (SELECT... [complicated subselect]...) ItemHistory hangs off Item in the publication filter articles. On the server, we have a table ItemHistoryExport, which has a foreign key to ItemHistory. ItemHistoryExport is not published. Entries in the Item and ItemHistory tables are never deleted, on the server or the client. However, the "ownership" of items (and hence their ItemHistories) MAY change, which causes them to be moved from one client subscription/partition to another from time to time. When we sync, we occasionally get the following error: A row delete at '48269404 - 4108383dbb11' could not be propagated to 'MyServer\MyInstance.MyDatabase'. This failure can be caused by a constraint violation. The DELETE statement conflicted with the REFERENCE constraint "FK_ItemHistoryExport_ItemHistory". The conflict occurred in database "MyDatabase", table "dbo.ItemHistoryExport", column 'ItemHistoryId'. Can anyone help us understand why this happens? There shouldn't ever be a delete happening on the server side.

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