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  • WPF WrapPanel with some items having a height of *

    - by Aphex
    How do I make a WrapPanel with some items having a Height of *? A deceptively simple question that I have been trying to solve. I want a control (or some XAML layout magickry) that behaves similar to a Grid that has some rows with a Height of *, but supports wrapping of columns. Hell; call it a WrapGrid. :) Here's a mockup to visualize this. Imagine a grid defined as such: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="400"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Button Grid.Row="0" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="1" MinHeight="90">I'm star-sized.</Button> <Button Grid.Row="2" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="3" MinHeight="90">I'm star-sized, too!</Button> <Button Grid.Row="4" MinHeight="30">I'm auto-sized.</Button> <Button Grid.Row="5" MinHeight="30">I'm auto-sized.</Button> </Grid> </Window> What I want this panel to do is wrap an item into an additional column when the item can not get any smaller than its minHeight. Here is a horrible MSPaint of some mockups I made detailing this process. Recall from the XAML that the auto-sized buttons have minHeights of 30, and the star-sized buttons have minHeights of 90. This mockup is just two grids side by side and I manually moved buttons around in the designer. Conceivably, this could be done programmatically and serve as a sort of convoluted solution to this. How can this be done? I will accept any solution whether it's through xaml or has some code-behind (though I would prefer pure XAML if possible since xaml code behind is tougher to implement in IronPython). Updated with a bounty

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  • Computational geometry: find where the triangle is after rotation, translation or reflection on a mi

    - by newba
    I have a small contest problem in which is given a set of points, in 2D, that form a triangle. This triangle may be subject to an arbitrary rotation, may be subject to an arbitrary translation (both in the 2D plane) and may be subject to a reflection on a mirror, but its dimensions were kept unchanged. Then, they give me a set of points in the plane, and I have to find 3 points that form my triangle after one or more of those geometric operations. Example: 5 15 8 5 20 10 6 5 17 5 20 20 5 10 5 15 20 15 10 I bet that have to apply some known algorithm, but I don't know which. The most common are: convex hull, sweep plane, triangulation, etc. Can someone give a tip? I don't need the code, only a push, please!

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  • Implementing database redundancy with sharded tables

    - by ensnare
    We're looking to implement load balancing by horizontally sharding our tables across a cluster of servers. What are some options to implement live redundancy should a server fail? Would it be effective to do (2) INSERTS instead of one ... one to the target shard, and another to a secondary shard which could be accessed should the primary shard not respond? Or is there a better way? Thanks.

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  • Strange VS2005 compile errors: unable to locate resource file (because the compiler keeps deleting i

    - by Velika
    I AM GETTING THE FOLLOWING ERROR IN A VERY SIMPLE CLASS LIBRARY: Error 1 Unable to copy file "obj\Debug\SMIT.SysAdmin.BusinessLayer.Resources.resources" to "obj\Debug\SMIT.SysAdmin.BusinessLayer.SMIT.SysAdmin.BusinessLayer.Resources.resources". Could not find file 'obj\Debug\SMIT.SysAdmin.BusinessLayer.Resources.resources'. SMIT.SysAdmin.BusinessLayer Going to the Project Properties-Resource tab, I see that I defined do resources. Still, I tried to delete the resource file and recreate by going to the resource tab. When I recompile, I still get the same error. Why is it even looking for a resource file? I define no resources on teh project properties tab and added no new resource file items. Any suggestions of things to try? Update: I found the missing file in an old backup. I copied it to the location where the compiler expected it, and then successfully recompiled the project that previously had compile time errors. However, when I rebuild the entire solution, it deletes the file that I previously restored and I'm back to where I started. My solution contains several projects (maybe 10 or so). Could VS 2005 be having a problem determining dependencies and the proper order to compile these projects?

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  • Removing the obstacle that yields the best path from a map after A* traversal

    - by David Titarenco
    I traverse a 16x16 maze using my own A* implementation. This is exactly what my program does: http://www.screenjelly.com/watch/fDQh98zMP0c?showTab=share All is well. However, after the traversal, I would like to find out what wall would give me the best alternative path. Apart from removing every block and re-running A* on the maze, what's a clever solution? I was thinking give every wall node (ignored by A*), a tentative F-value, and change the node structure to also have a n-sized list of node *tentative_parent where n is the number of walls in the maze. Could this be viable?

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  • project hours worked to be sum of tasks hours worked.

    - by silverkid
    i have a sharepoint list called project . this list has column called hours worked. Then i also have a list called tasks. this list also has a column called hours worked. the task list also has a lookup field where we select project ID from project list. Thus for each project we can have many tasks. now tasks list items are created by individual users and i have to create such a mechanism that the hours worked in project list must always be the sum of hours worked in tasks of that project. How can I achieve this.

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  • Entity Relationship Diagram - Relationship Strength?

    - by 01010011
    Hi, I am trying to figure out under what circumstances I should use weak (non-identifying) relationships (where the primary key of the related entity does not contain a primary key component of the parent entity), verses when I should use strong (identifying) relationships (primary key of the related entity contains a primary key component of the parent entity). For example, when designing an Entity Relationship Diagram , if I have two entities, (e.g. book and purchaser), how do I know when to choose the solid Crows Foot or the dashed Crows Foot to connect the two entities? Any assistance will be appreciated. Thanks in advance.

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  • Best Fit Scheduling Algorithm

    - by Teegijee
    I'm writing a scheduling program with a difficult programming problem. There are several events, each with multiple meeting times. I need to find an arrangement of meeting times such that each schedule contains any given event exactly once, using one of each event's multiple meeting times. Obviously I could use brute force, but that's rarely the best solution. I'm guessing this is a relatively basic computer science problem, which I'll learn about once I am able to start taking computer science classes. In the meantime, I'd prefer any links where I could read up on this, or even just a name I could Google.

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  • CSS Caching and User-CUstomized CSS - Any Suggestions?

    - by Joe
    I'm just trying to figure out the best approach here... my consideration is that I'd like my users to be able to customize the colors of certain elements on the page. These are not pre-made css they can choose from, but rather styles that can be edited using javascript to change the style, so they cannot be "pre-made" into separate style sheets. I am also generating the css into a cache directory since I am generating the css through a PHP script. I am thinking that, perhaps I should: 1) If cached css file doesn't exist, create css file using the website default style settings. 2) If cached css file does exist, check if user has custom settings, if so, edit the cache file before displaying it. Btw, when I refer to "cached file" I mean the PHP generated css document. My goal is to prevent the need to have PHP re-generate the css file each time, whilst still allowing users, when logged in, to have their customized css settings applied. I will store these settings in a database most likely so when they return it is saved for them when they login.

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  • ajax tabcontainer with button postback problem

    - by yousof
    I have a dropdownlist in my web page and two command buttons and a tabcontainer. The tabcontainer does not appear after the load of page according to my code. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load If Not IsPostBack Then TabContainer1.Visible = False If CtvAct.GetRecords("Fill_RequestTypeTb") = True Then ReqTypeCmbo.DataSource = CtvAct.MainDataset.Tables("tbOLRequestType").DefaultView ReqTypeCmbo.DataTextField = "RequestTypeName" ReqTypeCmbo.DataValueField = "RequestTypeId" ReqTypeCmbo.DataBind() Dim itm As New ListItem itm.Text = "-- ??? ??? ????? --" itm.Value = "-1" itm.Selected = True ReqTypeCmbo.Items.Insert(0, itm) ReqTypeCmbo.SelectedIndex = 0 End If End If End Sub Protected Sub PrntCmd_Click(ByVal sender As Object, ByVal e As EventArgs) Handles PrntCmd.Click TextBox6.Text = "gggg" End Sub Protected Sub ReqTypeCmbo_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles ReqTypeCmbo.SelectedIndexChanged If ReqTypeCmbo.SelectedItem.Text = "????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 0 OwnerDataPnl.Enabled = True AttornyDataPnl.Enabled = True BaseDataPnl.Enabled = True RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = False AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = False CancelActivityPnl.Visible = False LocTransPnl.Visible = False ' Panel1.Visible = False '?????? ?????? ??????? ???????? REstOfficeAddrTxt.Enabled = True REstOffIdeIssuedPlaceTxt.Enabled = True REstOffIdentityNameTxt.Enabled = True REstOffIdentityNumberTxt.Enabled = True REstOffIdentityStartDateTxt.Enabled = True REstOffMobileTxt.Enabled = True REstOffNameTxt.Enabled = True REstOffPhoneTxt.Enabled = True OwnerShipNumberTxt.Enabled = True OwnerShipDateTxt.Enabled = True OwnerShipIssuedPlaceTxt.Enabled = True SerailTxt.Enabled = True RequestIdTxt.Enabled = True RequestDateTxt.Enabled = True RenwDataPnl.Visible = True '''' If CtvAct.GetRecords("Fill_NationalityTb") = True Then OwnrNationCmbo.DataSource = CtvAct.MainDataset.Tables("tbOLNationality").DefaultView OwnrNationCmbo.DataTextField = "NationName" OwnrNationCmbo.DataValueField = "NationId" OwnrNationCmbo.DataBind() Dim itm As New ListItem itm.Text = "-- ??? ??????? --" itm.Value = "-1" itm.Selected = True OwnrNationCmbo.Items.Insert(0, itm) OwnrNationCmbo.SelectedIndex = 0 End If If CtvAct.GetRecords("Fill_ActivityTb") = True Then AcivityCombo.DataSource = CtvAct.MainDataset.Tables("tbOLActivity").DefaultView AcivityCombo.DataTextField = "ActivityName" AcivityCombo.DataValueField = "ActivityId" AcivityCombo.DataBind() AcivityCombo.SelectedIndex = -1 Dim itm As New ListItem itm.Text = "-- ??? ?????? --" itm.Value = "-1" itm.Selected = True AcivityCombo.Items.Insert(0, itm) AcivityCombo.SelectedIndex = 0 End If 'If CtvAct.GetRecords("Fill_ActivityTb") = True Then ' DropDownList2.DataSource = CtvAct.MainDataset.Tables("tbOLActivity").DefaultView ' DropDownList2.DataTextField = "ActivityName" ' DropDownList2.DataValueField = "ActivityId" ' DropDownList2.DataBind() 'AcivityCombo.Visible = True ' LbCon.Text = CtvAct.Prt 'End If AttronayNationCmbo.SelectedIndex = -1 If CtvAct.GetRecords("Fill_NationalityTb") = True Then AttronayNationCmbo.DataSource = CtvAct.MainDataset.Tables("tbOLNationality").DefaultView AttronayNationCmbo.DataTextField = "NationName" AttronayNationCmbo.DataValueField = "NationId" AttronayNationCmbo.DataBind() Dim itm As New ListItem itm.Text = "-- ??? ??????? --" itm.Value = "-1" itm.Selected = True AttronayNationCmbo.Items.Insert(0, itm) AttronayNationCmbo.SelectedIndex = 0 ' LbCon.Text = CtvAct.Prt End If If CtvAct.GetRecords("Fill_LocationTb") = True Then LocationIdCmbo.DataSource = CtvAct.MainDataset.Tables("tbOLLocation").DefaultView LocationIdCmbo.DataTextField = "LocationName" LocationIdCmbo.DataValueField = "LocationId" LocationIdCmbo.DataBind() Dim itm As New ListItem itm.Text = "-- ??? ?????? --" itm.Value = "-1" itm.Selected = True LocationIdCmbo.Items.Insert(0, itm) LocationIdCmbo.SelectedIndex = 0 ' LbCon.Text = CtvAct.Prt End If '''''''''''''''''''''''''''''''' con = New SqlConnection(CtvAct.Connection_String()) CmdActivty = con.CreateCommand CmdActivty.CommandText = "SELECT ActivityId FROM tbOLStoreActivty" DaActivity.SelectCommand = CmdActivty DaActivity.Fill(DsActivity, "tbOLStoreActivty") ActivityGV.DataSource = DaActivity ActivityGV.DataMember = "tbOLStoreActivty" AcivityCombo.DataSource = ds.Tables(0) AcivityCombo.DataTextField = "ename" AcivityCombo.DataValueField = "eid" AcivityCombo.DataBind() ''''''''''''''''''''''''''''' LbCon.Text = CtvAct.Prt ElseIf ReqTypeCmbo.SelectedItem.Text = "?????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 1 OwnerDataPnl.Enabled = False AttornyDataPnl.Enabled = False BaseDataPnl.Enabled = True AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = False RenwDataPnl.Visible = True AddActivtyPnl.Visible = False NewOwnerDataPnl0.Visible = False CancelActivityPnl.Visible = False LocTransPnl.Visible = False '?????? ?????? ??????? ???????? REstOfficeAddrTxt.Enabled = False REstOffIdeIssuedPlaceTxt.Enabled = False REstOffIdentityNameTxt.Enabled = False REstOffIdentityNumberTxt.Enabled = False REstOffIdentityStartDateTxt.Enabled = False REstOffMobileTxt.Enabled = False REstOffNameTxt.Enabled = False REstOffPhoneTxt.Enabled = False OwnerShipNumberTxt.Enabled = False OwnerShipDateTxt.Enabled = False OwnerShipIssuedPlaceTxt.Enabled = False SerailTxt.Enabled = True RequestIdTxt.Enabled = True RequestDateTxt.Enabled = True ''''''''' ElseIf ReqTypeCmbo.SelectedItem.Text = "??? ?????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 1 OwnerDataPnl.Enabled = False AttornyDataPnl.Enabled = False BaseDataPnl.Enabled = False RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = True AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = False CancelActivityPnl.Visible = False LocTransPnl.Visible = False ElseIf ReqTypeCmbo.SelectedItem.Text = "????? ????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 1 OwnerDataPnl.Enabled = False AttornyDataPnl.Enabled = False BaseDataPnl.Enabled = False RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = False AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = False CancelActivityPnl.Visible = True LocTransPnl.Visible = False ElseIf ReqTypeCmbo.SelectedItem.Text = "????? ????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 1 OwnerDataPnl.Enabled = False AttornyDataPnl.Enabled = False BaseDataPnl.Enabled = False RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = False AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = True LocTransPnl.Visible = False ElseIf ReqTypeCmbo.SelectedItem.Text = "??? ???? / ????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 1 OwnerDataPnl.Enabled = False AttornyDataPnl.Enabled = False BaseDataPnl.Enabled = False RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = False AddActivtyPnl.Visible = False SubstitPnl.Visible = True FinishLicePnl.Visible = False LocTransPnl.Visible = False ElseIf ReqTypeCmbo.SelectedItem.Text = "??? ????" Then TabContainer1.Visible = True TabContainer1.ActiveTabIndex = 0 OwnerDataPnl.Enabled = True AttornyDataPnl.Enabled = True BaseDataPnl.Enabled = True RenwDataPnl.Visible = False NewOwnerDataPnl0.Visible = False AddActivtyPnl.Visible = False SubstitPnl.Visible = False FinishLicePnl.Visible = False CancelActivityPnl.Visible = False LocTransPnl.Visible = True End If End Sub If I press any button after page load the button work very selecting any item from dropdownlist make the tabcontainer appear but after the tabcontainer appear, the buttons does not work (postback) how can I solve these problems

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  • Sharing the model in MVP Winforms App

    - by Keith G
    I'm working on building up an MVP application (C# Winforms). My initial version is at http://stackoverflow.com/questions/1422343/ ... Now I'm increasing the complexity. I've broken out the code to handle two separate text fields into two view/presenter pairs. It's a trivial example, but it's to work out the details of multiple presenters sharing the same model. My questions are about the model: I am basically using a property changed event raised by the model for notifying views that something has changed. Is that a good approach? What if it gets to the point where I have 100 or 1000 properties? Is it still practical at that point? Is instantiating the model in each presenter with   NoteModel _model = NoteModel.Instance   the correct approach? Note that I do want to make sure all of the presenters are sharing the same data. If there is a better approach, I'm open to suggestions .... My code looks like this: NoteModel.cs public class NoteModel : INotifyPropertyChanged { private static NoteModel _instance = null; public static NoteModel Instance { get { return _instance; } } static NoteModel() { _instance = new NoteModel(); } private NoteModel() { Initialize(); } public string Filename { get; set; } public bool IsDirty { get; set; } public readonly string DefaultName = "Untitled.txt"; string _sText; public string TheText { get { return _sText; } set { _sText = value; PropertyHasChanged("TheText"); } } string _sMoreText; public string MoreText { get { return _sMoreText; } set { _sMoreText = value; PropertyHasChanged("MoreText"); } } public void Initialize() { Filename = DefaultName; TheText = String.Empty; MoreText = String.Empty; IsDirty = false; } private void PropertyHasChanged(string sPropName) { IsDirty = true; if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(sPropName)); } } public event PropertyChangedEventHandler PropertyChanged; } TextEditorPresenter.cs public class TextEditorPresenter { ITextEditorView _view; NoteModel _model = NoteModel.Instance; public TextEditorPresenter(ITextEditorView view)//, NoteModel model) { //_model = model; _view = view; _model.PropertyChanged += new PropertyChangedEventHandler(model_PropertyChanged); } void model_PropertyChanged(object sender, PropertyChangedEventArgs e) { if (e.PropertyName == "TheText") _view.TheText = _model.TheText; } public void TextModified() { _model.TheText = _view.TheText; } public void ClearView() { _view.TheText = String.Empty; } } TextEditor2Presenter.cs is essentially the same except it operates on _model.MoreText instead of _model.TheText. ITextEditorView.cs public interface ITextEditorView { string TheText { get; set; } } ITextEditor2View.cs public interface ITextEditor2View { string MoreText { get; set; } }

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  • How to choose a integer linear programming solver ?

    - by Cassie
    Hi all, I am newbie for integer linear programming. I plan to use a integer linear programming solver to solve my combinational optimization problem. I am more familiar with C++/object oriented programming on an IDE. Now I am using NetBeans with Cygwin to write my applications most of time. May I ask if there is an easy use ILP solver for me? Or does it depend on the problem I want to solve ? I am trying to do some resources mapping optimization. please let me know if any further information is required. Thank you very much, Cassie.

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  • Can I use a plaintext diff algorithm for tracking XML changes?

    - by rinogo
    Hi all! Interesting question for you here. I'm working in Flex/AS3 on (for simplicity) an XML editor. I need to provide undo/redo functionality. Of course, one solution is to store the entire source text with each edit. However, to conserve memory, I'd like to store the diffs instead (these diffs will also be used to transmit updates to the server for auto-saving). My question is - can I use a plaintext diff algorithm for tracking these XML changes? My research on the internet indicates that I cannot do so. However, I'm obviously missing something. Plaintext diff provides functionality that is purportedly: diff(text, text') - diffs patch(text, diffs) - text' XML is simply text, so why can't I just use diff() and patch() to transform the text reliably? For example: Let's say that I'm a poet. When I write poetry, I use lots of funky punctuation... You know, like <, /, and . (You might see where I'm going with this...) If I'm writing my poetry in an application that uses diffs to provide undo/redo functionality, does my poetry become garbled when I undo/redo my edits? It's just text! Why does it make a difference to the algorithm? I obviously don't get something here...Thanks for explaining! :) -Rich

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  • fast similarity detection

    - by reinierpost
    I have a large collection of objects and I need to figure out the similarities between them. To be exact: given two objects I can compute their dissimilarity as a number, a metric - higher values mean less similarity and 0 means the objects have identical contents. The cost of computing this number is proportional to the size of the smaller object (each object has a given size). I need the ability to quickly find, given an object, the set of objects similar to it. To be exact: I need to produce a data structure that maps any object o to the set of objects no more dissimilar to o than d, for some dissimilarity value d, such that listing the objects in the set takes no more time than if they were in an array or linked list (and perhaps they actually are). Typically, the set will be very much smaller than the total number of objects, so it is really worthwhile to perform this computation. It's good enough if the data structure assumes a fixed d, but if it works for an arbitrary d, even better. Have you seen this problem before, or something similar to it? What is a good solution? To be exact: a straightforward solution involves computing the dissimilarities between all pairs of objects, but this is slow - O(n2) where n is the number of objects. Is there a general solution with lower complexity?

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  • MSBuild Override Project Reference to resolve to Precompiled Assembly

    - by Ryu
    Situation I have about 400 csproj files using project references. About 3 of those a separate team wants to fork and incorporate into a standalone app. I branched the 3 projects of interest, and because the separate team uses a diff SVN repo I used svn externals to pull in these projects into the folder of the standalone app. Obviously since this team uses a different folder structure the project references no longer resolve. Attempted Solution I figured setting the msbuild properties ReferencePath and AdditionalLibPaths to point to a directory with all the precompiled dependencies would allow the project references a fallback point and resolve correctly. However that doesn't appear to be the case. Question Does anybody know a way to have a failed projectreference look up resolve to the precompiled dll? Perhaps point me to an automated tool to convert projectreferences to dll references? Or is there a better way to solve this problem? Thanks

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  • Can't set breakpoints on an auto-property setter ? Why?

    - by Cristi Diaconescu
    Apparently VS 2008 does not allow setting a breakpoint just on the setter of an auto-property. I.e. if I define an auto-property like this: public int CurrentFramesize { get; protected set; } and then try to set a breakpoint on the setter line, the whole auto-property turns breakpoint-red. This works just fine for normal properties, so any idea why auto-properties get this special (restrictive) treatment? Are they more than just syntactic sugar to normal properties with a hidden backing field?

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  • Install windows service "Service ... was not found on computer '.'."

    - by Chau
    I'm trying to create my first Windows Service in C# VS2010 and slowly discover how I should do things. But now I have reached a point, where I cannot install a new version of my service. My setup program tells me Error 1001. Service MyService was not found on computer '.'. --> The specified service does not exists as an installed service. The last part of the message is translated into english from danish. I cannot see the service in either the service list (services.msc) or in the registry. I have removed the left overs from a previous installation, so no traces here either. I have emptied the temporary folder under my windows account. Where do I locate the rest of the remains obstructing my installation of the service?

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  • Are preprocessors obsolete in modern languages?

    - by Earlz
    Hello, I'm making a simple compiler for a simple pet language I'm creating and coming from a C background(though I'm writing it in Ruby) I wondered if a preprocessor is necessary. What do you think? Is a "dumb" preprocessor still necessary in modern languages? Would C#'s conditional compilation capabilities be considered a "preprocessor"? Does every modern language that doesn't include a preprocessor have the utilities necessary to properly replace it? (for instance, the C++ preprocessor is now mostly obsolete(though still depended upon) because of templates.)

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  • How to create a folder under %allusersprofile% during Setup with VS 2003 Setup Project?

    - by Romias
    I need to create a folder under "%allusersprofile%/Program Data" during the install process. The Setup file is created with VS 2003 setup project, and in it you can use several Known Folders... but as I see none maps to %allusersprofile% or "%allusersprofile%/Program Data". I thought that creating a "Custom Folder" (within VS Setup Project) and setting the TargetLocation as %allusersprofile% it would work, but during install it says that I don't have permission to that folder (and I do have). Do you know how to target that folder in VS Setup Project? Also... I'm working in Windows XP, so %allusersprofile% maps to "C:\Documents and Settings\All Users", but there I suppose I should create my folder inside the "Program Data" folder. In Vista, %allusersprofile% maps to "C:\ProgramData" and it look correct if I create my folder directly there. Any idea how to target both OSs? Additional info: I'm trying this to avoid the new security features in Vista, where the app can't write files under the Program Files folder when running as a common user at least. So I need to place the writable files on "common" folder that is not in a "per user" basis.

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  • how to generate dbml file from Sybase database?

    - by 5YrsLaterDBA
    I think we may have trouble with our existing project. For some reasons we have to switch from SQL Server to Sybase SQL Anywhere 11. now we trying to find a way continue use our existing LINQ code. We wish we can still use L2S? If cannot, we wish we can use L2E, then we have to change to ADO. how to generate dbml file from Sybase Anywhere 11? after that can we use sqlmetal to generate .cs files?

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  • How do I use unmanaged DLL in C++ win32 application?

    - by Nick
    I have a 3rd party DLL that I am trying to use in a win32 C++ application. The DLL alone is all that I have. I believe this library is written in C and I assume is not exposed to COM. Is LoadLibrary() the function must commonly used for this task in Windows? If so can someone provide me with an example of how it is used? I created a blank win32 in VS so I don't have any of the windows specific headers included etc. Thanks!

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  • multiple-inheritance substitution

    - by Luigi
    I want to write a module (framework specific), that would wrap and extend Facebook PHP-sdk (https://github.com/facebook/php-sdk/). My problem is - how to organize classes, in a nice way. So getting into details - Facebook PHP-sdk consists of two classes: BaseFacebook - abstract class with all the stuff sdk does Facebook - extends BaseFacebook, and implements parent abstract persistance-related methods with default session usage Now I have some functionality to add: Facebook class substitution, integrated with framework session class shorthand methods, that run api calls, I use mostly (through BaseFacebook::api()), authorization methods, so i don't have to rewrite this logic every time, configuration, sucked up from framework classes, insted of passed as params caching, integrated with framework cache module I know something has gone very wrong, because I have too much inheritance that doesn't look very normal.Wrapping everything in one "complex extension" class also seems too much. I think I should have few working togheter classes - but i get into problems like: if cache class doesn't really extend and override BaseFacebook::api() method - shorthand and authentication classes won't be able to use the caching. Maybe some kind of a pattern would be right in here? How would you organize these classes and their dependencies? EDIT 04.07.2012 Bits of code, related to the topic: This is how the base class of Facebook PHP-sdk: abstract class BaseFacebook { // ... some methods public function api(/* polymorphic */) { // ... method, that makes api calls } public function getUser() { // ... tries to get user id from session } // ... other methods abstract protected function setPersistentData($key, $value); abstract protected function getPersistentData($key, $default = false); // ... few more abstract methods } Normaly Facebook class extends it, and impelements those abstract methods. I replaced it with my substitude - Facebook_Session class: class Facebook_Session extends BaseFacebook { protected function setPersistentData($key, $value) { // ... method body } protected function getPersistentData($key, $default = false) { // ... method body } // ... implementation of other abstract functions from BaseFacebook } Ok, then I extend this more with shorthand methods and configuration variables: class Facebook_Custom extends Facebook_Session { public funtion __construct() { // ... call parent's constructor with parameters from framework config } public function api_batch() { // ... a wrapper for parent's api() method return $this->api('/?batch=' . json_encode($calls), 'POST'); } public function redirect_to_auth_dialog() { // method body } // ... more methods like this, for common queries / authorization } I'm not sure, if this isn't too much for a single class ( authorization / shorthand methods / configuration). Then there comes another extending layer - cache: class Facebook_Cache extends Facebook_Custom { public function api() { $cache_file_identifier = $this->getUser(); if(/* cache_file_identifier is not null and found a valid file with cached query result */) { // return the result } else { try { // call Facebook_Custom::api, cache and return the result } catch(FacebookApiException $e) { // if Access Token is expired force refreshing it parent::redirect_to_auth_dialog(); } } } // .. some other stuff related to caching } Now this pretty much works. New instance of Facebook_Cache gives me all the functionality. Shorthand methods from Facebook_Custom use caching, because Facebook_Cache overwrited api() method. But here is what is bothering me: I think it's too much inheritance. It's all very tight coupled - like look how i had to specify 'Facebook_Custom::api' instead of 'parent:api', to avoid api() method loop on Facebook_Cache class extending. Overall mess and ugliness. So again, this works but I'm just asking about patterns / ways of doing this in a cleaner and smarter way.

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