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  • Database structure - To join or not to join

    - by Industrial
    Hi! We're drawing up the database structure with the help of mySQL Workbench for a new app and the number of joins required to make a listing of the data is increasing drastically as the many-to-many relationships increases. The application will be quite read-heavy and have a couple of hundred thousand rows per table. The questions: Is it really that bad to merge tables where needed and thereby reducing joins? Should we start looking at horizontal partitioning? (in conjunction with merging tables) Is there a better way then pivot tables to take care of many-to-many relationships? We discussed about instead storing all data in serialized text columns and having the application make the sorting instead of the database, but this seems like a very bad idea, even though that the database will be heavily cached. What do you think? Thanks!

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  • XML generation error.

    - by Janis Peisenieks
    I'm trying to generate an XML output with Zend_Framework, but this nasty thing keeps popping up: XML Parsing Error: XML or text declaration not at start of entity Location: http://cart/index/kurpirkt Line Number 2, Column 1:<?xml version="1.0" encoding="utf-8"?> ^ As far as I know there are no white-spaces in any of my include files, and even if there were, I think that the ob_clean() function should have taken care of it. Here is my code: public function kurpirktAction() { ob_clean(); // XML-related routine $xml = new DOMDocument('1.0', 'utf-8'); $xml->appendChild($xml->createElement('foo', 'bar')); $output = $xml->saveXML(); // Both layout and view renderer should be disabled Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer')->setNoRender(true); Zend_Layout::getMvcInstance()->disableLayout(); // Setting up headers and body $this->_response->setHeader('Content-Type', 'text/xml; charset=utf-8') ->setBody($output); } Any help or suggestions?

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  • Graph spacing algorithm

    - by David
    Hi, I am looking for an algorithm that would be useful for determining x y coordinates for a number objects to display on screen. Each object can be related to another object and there can be any number of relationships and there can be any number of these objects. There is no restriction on the overall size of area on which to display these object. I am writing this in php and would be looking to store the coordinates in an array.

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  • Gmail 3-legged OAuth access -- Zend_Mail_Protocol_Exception

    - by tchaymore
    I'm trying to access Gmail by using three-legged Oauth PHP code provided by Google ('google-mail-xoauth-tools') here: http://code.google.com/apis/gmail/oauth/code.html. I have my domain registered and everything seems to go fine with OAuth, but after I authorize access I get this error: Fatal error: Uncaught exception 'Zend_Mail_Protocol_Exception' with message 'cannot connect to host; error = Connection refused (errno = 111 )' in /home/tchaymor/public_html/gmail/Zend/Mail/Protocol/Imap.php:100 Stack trace: #0 /home/tchaymor/public_html/gmail/Zend/Mail/Protocol/Imap.php(61): Zend_Mail_Protocol_Imap->connect('imap.gmail.com', '993', true) #1 /home/tchaymor/public_html/gmail/three-legged.php(170): Zend_Mail_Protocol_Imap->__construct('imap.gmail.com', '993', true) #2 {main} thrown in /home/tchaymor/public_html/gmail/Zend/Mail/Protocol/Imap.php on line 100 This is my first time using OAuth with any Google products, so it could be something totally brainless I'm missing. Any suggestions would be most welcome (as suggestions for easier alternatives). I'm more on the designer rather than coder end, so the simpler the better.

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  • How can we implement change notification propagation for WPF and SL in the MVVM pattern?

    - by Firoso
    Here's an example scenario targetting MVVM WPF/SL development: View data binds to view model Property "Target" "Target" exposes a field of an object called "data" that exists in the local application model, called "Original" when "Original" changes, it should raise notification to the view model and then propogate that change notification to the View. Here are the solutions I've come up with, but I don't like any of them all that much. I'm looking for other ideas, by the time we come up with something rock solid I'm certain Microsoft will have released .NET 5 with WPF/SL extensions for better tools for MVVM development. For now the question is, "What have you done to solve this problem and how has it worked out for you?" Option 1. Proposal: Attach a handler to data's PropertyChanged event that watches for string values of properties it cares about that might have changed, and raises the appropriate notification. Why I don't like it: Changes don't bubble naturally, objects must be explicitly watched, if data changes to a new source, events must be un-registered/registered. Why I kind of like it: I get explicit control over propogation of changes, and I don't have to use any types that belong at a higher level of the application such as dependancy properties. Option 2. Proposal: Attach a handler to data's PropertyChanged event that re-raises the event across all properties using the name property name. Why I don't like it: This is essentially the same as option 1, but less intelligent, and forces me to never change my property names, as they have to be the same as the property names on data Why I kind of like it: It's very easy to set up and I don't have to think about it... Then again if I try to think, and change names to things that make sense, I shoot myself in the foot, and then I have to think about it! Option 3. Proposal: Inherit my view model from dependancy object, and notify binding sources of changes directly. Why I don't like it: I'm not even 100% sure dependancy properties/objects can DO this, it was just a thought to look into. Also I don't personally feel that WPF/SL types like Dep Obj belong at the view model level. Why I kind of like it: IF it has the capability that I'm seeking then it's a good answer! minus that pesky layering issue. Option 4. Proposal: Use a consistant agent messaging system based off of Task Parallels DataFlow Library to propogate everything through linked pipelining. Why I don't like it: I've never tried this, and somehow I think it will be lacking, plus it requires me to think about my code completely differently all the way around. Why I kind of like it: It has the possiblity of allowing me to do some VERY fun manipulations with a push based data model and using ActionBlocks as validation AND setters to then privately change view model properties and explicitly control PropertyChanged notifications.

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  • How to avoid "The name 'ConfigurationManager' does not exist in the current context" error?

    - by 5YrsLaterDBA
    I am using VS2008. I have a project connect with a database and the connection string is read from App.config via ConfigurationManager. We are using L2E. Now I added a helper project, AndeDataViewer, to have a simple UI to display data from the database for testing/verification purpose. I don't want to create another set of Entity Data Model in the helper project. I just added all related files as a link in the new helper project. When I compile, I got the following error: Error 15 The name 'ConfigurationManager' does not exist in the current context C:\workspace\SystemSoftware\SystemSoftware\src\systeminfo\RuntimeInfo.cs 24 40 AndeDataViewer I think I may need to add another project setting/config related file's link to the helper project from the main project? There is no App.config file in the new helper project. But it looks I cannot add that file's link to the helper project. Any ideas?

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  • CQRS - The query side

    - by mattcodes
    A lot of the blogsphere articles related to CQRS (command query repsonsibility) seperation seem to imply that all screens/viewmodels are flat. e.g. Name, Age, Location Of Birth etc.. and thus the suggestion that implementation wise we stick them into fast read source etc.. single table per view mySQL etc.. and pull them out with something like primitive SqlDataReader, kick that nasty nhibernate ORM etc.. However, whilst I agree that domain models dont mapped well to most screens, many of the screens that I work with are more dimensional, and Im sure this is pretty common in LOB apps. So my question is how are people handling screen where by for example it displays a summary of customer details and then a list of their orders with a [more detail] link etc.... I thought about keeping with the straight forward SQL query to the Query Database breaking off the outer join so can build a suitable ViewModel to View but it seems like overkill? Alternatively (this is starting to feel yuck) in CustomerSummaryView table have a text/big (whatever the type is in your DB) column called Orders, and the columns for the Order summary screen grid are seperated by , and rows by |. Even with XML datatype it still feeel dirty. Any thoughts on an optimal practice?

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  • extjs - 'Store is undefined'

    - by Jamie
    Hi all, I'm pretty sure this a trivial problem and i'm just being a bit stupid. Your help would be hugely appreciated. In controls/dashboard.js I have: Ext.ill.WCSS.controls.dashboard = { xtype:'portal', region:'center', margins:'35 5 5 0', items:[{ columnWidth: 1, style:'padding:10px', items:[{ title: 'My Cluster Jobs', layout:'fit', html: "test" }] },{ columnWidth: 1, style:'padding:10px', items:[{ title: 'All Cluster Jobs', iconCls: 'icon-queue', html: "test", items: new Ext.grid.GridPanel({ title: 'Cluster Job Queue', store: Ext.ill.WCSS.stores.dashboardClusterJobs, width: 791, height: 333, frame: true, loadMask: true, stateful: false, autoHeight: true, stripeRows: true, floating: false, footer: false, collapsible: false, animCollapse: false, titleCollapse: false, columns:[ { xtype: 'gridcolumn', header: 'Job ID', sortable: true, resizable: true, width: 100, dataIndex: 'JB_job_number', fixed: false }, { xtype: 'gridcolumn', header: 'Priority', sortable: true, resizable: true, width: 100, dataIndex: 'JAT_prio', fixed: false }, { xtype: 'gridcolumn', header: 'User', sortable: true, resizable: true, width: 100, dataIndex: 'JB_owner' }, { xtype: 'gridcolumn', header: 'State', sortable: true, resizable: true, width: 100, dataIndex: 'state' }, { xtype: 'gridcolumn', header: 'Date Submitted', sortable: true, resizable: true, width: 100, dataIndex: 'JAT_start_time' }, { xtype: 'gridcolumn', header: 'Queue', sortable: true, resizable: true, width: 100, dataIndex: 'queue_name' }, { xtype: 'gridcolumn', header: 'CPUs', sortable: true, resizable: true, width: 100, dataIndex: 'slots' } ], bbar: { xtype: 'paging', store: 'storeClusterQueue', displayInfo: true, refreshText: 'Retrieving queue status...', emptyMsg: 'No jobs to retrieve', id: 'clusterQueuePaging' } }) }] }] }; Simple enough, note the reference to 'Ext.ill.WCSS.stores.dashboardClusterJobs' So in stores/dashboard.js I just have this: Ext.ill.WCSS.stores.dashboardClusterJobs = new Ext.data.XmlStore({ storeId: 'storeClusterJobs', record: 'job_list', autoLoad: true, url: 'joblist.xml', idPath: 'job_info', remoteSort: false, fields: [ { name: 'JB_job_number' }, { name: 'JAT_prio' }, { name: 'JB_name' }, { name: 'JB_owner' }, { name: 'state' }, { name: 'JAT_start_time' }, { name: 'slots' }, { name: 'queue_name' } ] }); I run the code and I get 'store is undefined' :S It's confusing me a lot. All of the javascripts have been included in the correct order. i.e. <script type="text/javascript" src="/js/portal.js"></script> <script type="text/javascript" src="/js/stores/dashboard.js"></script> <script type="text/javascript" src="/js/controls/dashboard.js"></script> Thanks guys!

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  • One Model to Rule Them All - VS2010 UML, ADO.NET Entity Data Model, and T4

    - by Eric J.
    I worked on a fairly large project a while back where we modeled the classes in Enterprise Architect and generated the (partial) POCO classes (complete with model-driven business rule validations), persistence (NHibernate mapping file) and DDL. Based on certain model attributes we could flag alternate generation strategies or indicate that a particular portion would be entirely hand-coded. There was a good deal of initial investment, but it paid large dividends over the lifetime of a 15 developer, 3 year project. I'm investigating doing something similar with the current Microsoft technology stack. The place I'm stuck is that class modeling is done with the VS 2010 UML tools, but logical data modeling is done with Entity Data Modeler. Is it a reasonable path to use VS 2010 UML as the "single source of truth" and code generate the edmx files based on the class model? That's the inverse of the common path to create the entity model and use a POCO generator to generate classes. However, a good class model can be used to generate much more than just the properties so I tend to view it as a better choice than the entity model.

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  • Scope of Connection Object for a Website using Connection Pooling (Local or Instance)

    - by Danny
    For a web application with connection polling enabled, is it better to work with a locally scoped connection object or instance scoped connection object. I know there is probably not a big performance improvement between the two (because of the pooling) but would you say that one follows a better pattern than the other. Thanks ;) public class MyServlet extends HttpServlet { DataSource ds; public void init() throws ServletException { ds = (DataSource) getServletContext().getAttribute("DBCPool"); } protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException { SomeWork("SELECT * FROM A"); SomeWork("SELECT * FROM B"); } void SomeWork(String sql) { Connection conn = null; try { conn = ds.getConnection(); // execute some sql ..... } finally { if(conn != null) { conn.close(); // return to pool } } } } Or public class MyServlet extends HttpServlet { DataSource ds; Connection conn;* public void init() throws ServletException { ds = (DataSource) getServletContext().getAttribute("DBCPool"); } protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException { try { conn = ds.getConnection(); SomeWork("SELECT * FROM A"); SomeWork("SELECT * FROM B"); } finally { if(conn != null) { conn.close(); // return to pool } } } void SomeWork(String sql) { // execute some sql ..... } }

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  • Is writing eSQL database agnostic?

    - by Robert Koritnik
    Using EF we can use LINQ to read data which is rather simple (especialy using fluent calls), but we have less control unless we write eSQL on our own. Is writing eSQL database actually data store independant code? So if we decide to change data store, can the same statements still be used? Is writing eSQL strings in your code pose any serious security threats similar to writing TSQL statements in plain strings? So we moved to SPs. Could we still mode eSQL scripts outside of code as well and use some other technique to make them a bit more secure?

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  • Saving State Dynamic UserControls...Help!

    - by Cognitronic
    I have page with a LinkButton on it that when clicked, I'd like to add a Usercontrol to the page. I need to be able to add/remove as many controls as the user would like. The Usercontrol consists of three dropdownlists. The first dropdownlist has it's auotpostback property set to true and hooks up the OnSelectedIndexChanged event that when fired will load the remaining two dropdownlists with the appropriate values. My problem is that no matter where I put the code in the host page, the usercontrol is not being loaded properly. I know I have to recreate the usercontrols on every postback and I've created a method that is being executed in the hosting pages OnPreInit method. I'm still getting the following error: The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases. Here is my code: Thank you!!!! bool createAgain = false; IList<FilterOptionsCollectionView> OptionControls { get { if (SessionManager.Current["controls"] != null) return (IList<FilterOptionsCollectionView>)SessionManager.Current["controls"]; else SessionManager.Current["controls"] = new List<FilterOptionsCollectionView>(); return (IList<FilterOptionsCollectionView>)SessionManager.Current["controls"]; } set { SessionManager.Current["controls"] = value; } } protected void Page_Load(object sender, EventArgs e) { Master.Page.Title = Title; LoadViewControls(Master.MainContent, Master.SideBar, Master.ToolBarContainer); } protected override void OnPreInit(EventArgs e) { base.OnPreInit(e); System.Web.UI.MasterPage m = Master; Control control = GetPostBackControl(this); if ((control != null && control.ClientID == (lbAddAndCondtion.ClientID) || createAgain)) { createAgain = true; CreateUserControl(control.ID); } } protected void AddAndConditionClicked(object o, EventArgs e) { var control = LoadControl("~/Views/FilterOptionsCollectionView.ascx"); OptionControls.Add((FilterOptionsCollectionView)control); control.ID = "options" + OptionControls.Count.ToString(); phConditions.Controls.Add(control); } public event EventHandler<Insight.Presenters.PageViewArg> OnLoadData; private Control FindControlRecursive(Control root, string id) { if (root.ID == id) { return root; } foreach (Control c in root.Controls) { Control t = FindControlRecursive(c, id); if (t != null) { return t; } } return null; } protected Control GetPostBackControl(System.Web.UI.Page page) { Control control = null; string ctrlname = Page.Request.Params["__EVENTTARGET"]; if (ctrlname != null && ctrlname != String.Empty) { control = FindControlRecursive(page, ctrlname.Split('$')[2]); } else { string ctrlStr = String.Empty; Control c = null; foreach (string ctl in Page.Request.Form) { if (ctl.EndsWith(".x") || ctl.EndsWith(".y")) { ctrlStr = ctl.Substring(0, ctl.Length - 2); c = page.FindControl(ctrlStr); } else { c = page.FindControl(ctl); } if (c is System.Web.UI.WebControls.CheckBox || c is System.Web.UI.WebControls.CheckBoxList) { control = c; break; } } } return control; } protected void CreateUserControl(string controlID) { try { if (createAgain && phConditions != null) { if (OptionControls.Count > 0) { phConditions.Controls.Clear(); foreach (var c in OptionControls) { phConditions.Controls.Add(c); } } } } catch (Exception ex) { throw ex; } } Here is the usercontrol's code: <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="FilterOptionsCollectionView.ascx.cs" Inherits="Insight.Website.Views.FilterOptionsCollectionView" %> namespace Insight.Website.Views { [ViewStateModeById] public partial class FilterOptionsCollectionView : System.Web.UI.UserControl { protected void Page_Load(object sender, EventArgs e) { } protected override void OnInit(EventArgs e) { LoadColumns(); ddlColumns.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(ColumnsSelectedIndexChanged); base.OnInit(e); } protected void ColumnsSelectedIndexChanged(object o, EventArgs e) { LoadCriteria(); } public void LoadColumns() { ddlColumns.DataSource = User.GetItemSearchProperties(); ddlColumns.DataTextField = "SearchColumn"; ddlColumns.DataValueField = "CriteriaSearchControlType"; ddlColumns.DataBind(); LoadCriteria(); } private void LoadCriteria() { var controlType = User.GetItemSearchProperties()[ddlColumns.SelectedIndex].CriteriaSearchControlType; var ops = User.GetItemSearchProperties()[ddlColumns.SelectedIndex].ValidOperators; ddlOperators.DataSource = ops; ddlOperators.DataTextField = "key"; ddlOperators.DataValueField = "value"; ddlOperators.DataBind(); switch (controlType) { case ResourceStrings.ViewFilter_ControlTypes_DDL: criteriaDDL.Visible = true; criteriaText.Visible = false; var crit = User.GetItemSearchProperties()[ddlColumns.SelectedIndex].SearchCriteria; ddlCriteria.DataSource = crit; ddlCriteria.DataBind(); break; case ResourceStrings.ViewFilter_ControlTypes_Text: criteriaDDL.Visible = false; criteriaText.Visible = true; break; } } public event EventHandler OnColumnChanged; public ISearchCriterion FilterOptionsValues { get; set; } } }

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  • Help with inner content box margins/padding

    - by Wolfgang
    I am working on a layout for a new site, and I'm having some trouble achieving what I want with the CSS. First of all, I want everything to always stay within the view of the current browser window, with scroll being in my content and not the browser itself. I have an outermost DIV which acts as my "wrapper" for the site displayed centered, with a set width, and having 100% height of the bowser window. Inside of this I place a header and all of this works as intended in all interested browsers. However, once I place my actual content DIV inside this "wrapper" I am unable to define it to be the size I want. If I simply give it margins or padding to make up for the header I have absolutely positioned, the content will overflow and I can't set scroll. And if I try to set the size directly, there are no values I can put in that will work since the margins/padding will add to the size and it will now be bigger than the current browser window, and overflow. Are there any styles people can think of I can use on the wrapper/content DIV(s) to get the desired look? Here is a diagram illustrating the look I want.

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  • Windows-mobile app won't run after being closed by Task Manager

    - by pithyless
    I've inherited some windows-mobile code that I've been bringing up-to-date. I've come across a weird bug, and I was hoping that even though a bit vague, maybe it will spark someone's memory: Running the app (which is basically a glorified Forms app with P/Invoke gps code), I switch to the task manager, and close the app via End Task. Seems to exit fine (no errors and disappears from Task Manager). Unfortunately, the app refuses to start a second time until I reboot the phone or reinstall the CAB. What's worse: this bug is reproducible on a HTC Diamond, but works fine (ie. can run again after EndTask) on an HTC HD2. The only thing I can think of is some kind of timing race between a Dispose() and the Task Manager. Any ideas? I'm also thinking of a workaround - I do have a working "Exit Application" routine that correctly cleans up the app; can I catch the EndTask event in the c# code in order to complete a proper cleanup? Maybe I'm just missing the pain point... all ideas welcome :)

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  • Google App Engine application instance recycling and response times...

    - by Konrad
    Hi, I posted this on GAE for Java group, but I hope to get some answers here quicker :) I decided to do some long-run performance tests on my application. I created some small client hitting app every 5-30 minutes and I run 3-5 of threads with such client. I noticed huge differenced in response times and started to investigate issue. I found reason very quick. I am experiencing same issues as described in following topics: Uneven response time between connection to server to first byte sent Application instances seem to be too aggressively recycled Getting 'Request was aborted after waiting too long to attempt to service your request.' after application idle I am using Springframework, it tkes around 18-20s to start app instance, which is causing response times to take from 1s (when requests hits running app - very rare) to 22s when fresh application is created. Is there any solution for this? I was thinking about creating most basic servlet performing critical tasks (serving API call) and leave UI as is. But then I would loose all benefits of Springframework. Is there any solution for this? After solving (hacking) numerous constrains of App Engine which I hit while developing my app that is the one I think will make me move out of App Engine... that's simply to much to all the time think how to win with GAE problems than how to solve my application problems... Any help? Regards Konrad

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  • Storing Preferences/One-to-One Relationships in Database

    - by LnDCobra
    What is the best way to store settings for certain objects in my database? Method one: Using a single table Table: Company {CompanyID, CompanyName, AutoEmail, AutoEmailAddress, AutoPrint, AutoPrintPrinter} Method two: Using two tables Table Company {CompanyID, COmpanyName} Table2 CompanySettings{CompanyID, utoEmail, AutoEmailAddress, AutoPrint, AutoPrintPrinter}

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  • Linq join with COUNT

    - by shivesh
    I have 2 tables, Forums and Posts. I want to retrieve all Forums fields with a new extra field: count all post that belong to this forum. I have this for now: var v =(from forum in Forums join post in Posts on forum.ForumID equals post.Forum.ForumID select new { forum, //Need to retrieve all fields/columns from forum PostCount = //count all post that belong to this forum with a condition: count it only if post.Showit==1 } ).Distinct() The join must be Left join: if there are no post that belongs to some forum, the forums fields should be retrieved but PostCount field should be 0. The result set must be distinct (join gives me the full cross...or how it's called)

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  • ZFDataGrid table width

    - by emeraldjava
    I'm using zfdatagrid to display a table within a Zend app. How do i fix the width of the table? I can't find any setting in the grid.ini. public function displaytemptableAction() { $config = new Zend_Config_Ini(APPLICATION_PATH.'/grids/grid.ini', 'production'); $db = Zend_Registry::get("db"); $grid = Bvb_Grid::factory('Table',$config,$id=''); $grid->setSource(new Bvb_Grid_Source_Zend_Table(new Model_DbTable_TmpTeamRaceResult())); //CRUD Configuration $form = new Bvb_Grid_Form(); $form->setAdd(false)->setEdit(true)->setDelete(true); $grid->setForm($form); $grid->setPagination(0); $grid->setExport(array('xml','pdf')); $this->view->grid = $grid->deploy(); }

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  • Unit testing .Net CF apps on Windows Mobile 6.5.3 in Visual Studio 2008

    - by Johann Gerell
    Did anyone get that to work? I mean, unit testing .Net CF apps on Windows Mobile 6.5.3 in Visual Studio 2008. It works great for a WM 6 Pro target, but not for a WM 6.5.3 target. I get this error: The test adapter ('Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestAdapter, Microsoft.VisualStudio.QualityTools.Tips.UnitTest.Adapter, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a') required to execute this test could not be loaded. Check that the test adapter is installed properly. Not enough storage is available to process this command. Yes, I can read the error text, but I don't understand the failed run. Any clues?

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  • I don't get Zend_Validate_Regex working

    - by poru
    Zend_Validate_Alpha doesn't fit 100% to that what I want and I don't get Zend_Validate_Regex working. I want that the validator just allows a-z/A-Z, 0-9, _ and -. I tried to add the following to one of my inputs: addValidator('Regex', true, array('pattern' => '/^[a-zA-Z0-9_-]/')) but for example abc§$%& is a valid input says the Zend Validator. What am I doing wrong?

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  • Many-to-many relations in RDBMS databases

    - by Industrial
    What is the best way of handling many-to-many relations in a RDBMS database like mySQL? Have tried using a pivot table to keep track of the relationships, but it leads to either one of the following: Normalization gets left behind Columns that is empty or null What approach have you taken in order to support many-to-many relationships?

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  • Using ComplexType with ToList causes InvalidOperationException

    - by Chris Paynter
    I have this model namespace ProjectTimer.Models { public class TimerContext : DbContext { public TimerContext() : base("DefaultConnection") { } public DbSet<Project> Projects { get; set; } public DbSet<ProjectTimeSpan> TimeSpans { get; set; } } public class DomainBase { [Key] public int Id { get; set; } } public class Project : DomainBase { public UserProfile User { get; set; } public string Name { get; set; } public string Description { get; set; } public IList<ProjectTimeSpan> TimeSpans { get; set; } } [ComplexType] public class ProjectTimeSpan { public DateTime TimeStart { get; set; } public DateTime TimeEnd { get; set; } public bool Active { get; set; } } } When I try to use this action I get the exception The type 'ProjectTimer.Models.ProjectTimeSpan' has already been configured as an entity type. It cannot be reconfigured as a complex type. public ActionResult Index() { using (var db = new TimerContext()) { return View(db.Projects.ToList); } } The view is using the model @model IList<ProjectTimer.Models.Project> Can any one shine some light as to why this would be happening?

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  • OpenNETCF Signature control question

    - by Vaccano
    I am using the Signature control in OpenNETCF. It works great for most everything I need. However, I need a way invert the signature and load it back in. It has a call to get the "bytes" for the signature (GetSignatureEx()). It returns a byte[] of the signature. This signature can then be loaded back in with LoadSignatureEx(). I can't seem to figure out the system for these bytes. I thought they may be coordinates, but it does not seem so now. If anyone out there knows a way to invert the signature and load it back in, I would be grateful to hear it.

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