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• Silverlight and M-V-VM - Where should a timer live?

  - by Bill Jeeves

  I'm creating a simple monitoring tool in Silverlight. It talks to a web service to retrieve the status information and store it in the ViewModel. This needs to happen once per minute so I'm going to add a timer for this purpose (probably a DispatcherTimer). My question is, where should the timer go in an M-V-VM architecture? In the ViewModel or the View?

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• Creating a ViewModel : do it before or after model data is available?

  - by Schneider

  I have a WPF application that loads data from a data source. Until some data is loaded there is nothing to display. My question is do I: Create both V and VM before any data is available; set the data in the VM once available Create only V at the start; wait until data available then create the VM injecting the data Create both V and VM only once data available

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• Parent and child model interaction

  - by jminarik

  Hi, is it possible set something like wpf window owner in caliburn.micro ? I have PARENT VIEW MODEL, from this model I open CHILD SCREEN {VIEW MODEL} with this method: public IEnumerable<IResult> Open() { yield return new ShowWindow("ChatScreen") .InitializeWith(_service .DetailData(Account, _selectedFriend.Value.Nick), AvatarImage); } This method create a new WPF WINDOW - CHILD SCREEN and initialize CHILD VIEW MODEL with some variables. I would like set something like this CHILD_SCREEN.PARENT = PARENT_VIEW_MODEL. I would like achieve if I close PARENT VIEW MODEL that it close also all CHILD MODELS. Also it exist way how can I check if screen, in my situation WPF window, is active/inactive from MAIN VIEW MODEL?

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• Handling exceptions in Prism 4 modules

  - by marcellscarlett

  I've gone through a number of threads here about this topic with no success. It seems that in the App.xaml.cs of our WPF application, handling DispatcherUnhandledExceptions and AppDomain.CurrentDomain.UnhandledException don't catch everything. In this specific instance we have 7 prism modules. My exception handling code is below (almost identical for UnhandledException): private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e) { try { var ex = e.Exception.InnerException ?? e.Exception; var logManager = new LogManager(); logManager.Error(ex); if (!EventLog.SourceExists(ex.Source)) EventLog.CreateEventSource(ex.Source, "AppName"); EventLog.WriteEntry(ex.Source, ex.InnerException.ToString()); var emb = new ExceptionMessageBox(ex); emb.ShowDialog(); e.Handled = true; } catch (Exception) { } } The problem seems to be the unhandled exceptions occurring in the modules. They aren't caught by the code above and they cause the application to crash without logging or displaying any sort of message. Does anyone have experience with this?

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• Should I use ObservableCollections in my Model in M-V-VM

  - by Bill Jeeves

  I'm completely new to M-V-VM and very new to Silverlight, just reading about it for the first time today. As a sample, I am creating a model containing a list of items. My (Silverlight 4) View contains a listbox and my ViewModel will look to the model to retrieve the collection that the listbox will bind to. My question is this. I think it would be good to use an ObservableCollection to hold the items that the listbox binds to. This would be an ObseravleCollection in the ViewModel. Should I also use this type of collection in the model, or should I use another collection type and do smoe conversion between model and viewmodel?

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• How to bind a property defined as usercontrol in XAML?

  - by EricSch

  In XAML (Root is a UserControl), I have defined a grid with two columns. In a ViewModel layer, I have defined a property as UserControl. The ViewModel is set as DataContext of the XAML. How I can bind this property of type UserControl declarative to the grid? Thanks

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• How do I link (dependency) properties in my ViewModel?

  - by mos

  Simplified example: I have an object that models a user. Users have a first name and a last name. The UserViewModel has a dependency property for my Models.User object. In the declaration of the UserView's xaml, I want to bind a couple of TextBlocks to the first and last name properties. What is the correct way to do this? Should I have readonly DependencyProperties for the name fields, and when the dependency property User is set, update them? Can the name fields be regular C# properties instead? Or, should I bind like this: <TextBlock Text="{Binding User.FirstName}" />

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• I can not navigate to the next page in windows phone 7

  - by Vijay

  I am trying to navigate form one page to another page depends upon the login. If already user logged in, Welcome page should open. Else Log in Page should open. I am trying like this. The Splash Page is the start up page. This is a Splash Screen Xaml.cs: namespace NewExample.Views { public partial class SplashPage : PhoneApplicationPage { public SplashPage() { InitializeComponent(); this.DataContext = new SplashPageViewModel(); } } } This is Splash Screen View Model: Here I am check the user already logged in or not. namespace NewExample.ViewModel { public class SplashPageViewModel { public static bool isLogin = false; public SplashPageViewModel() { var rootFrame = (App.Current as App).RootFrame; if (isLogin) rootFrame.Navigate(new Uri("/Views/WelcomePage.xaml", UriKind.Relative)); else rootFrame.Navigate(new Uri("/Views/LoginPage.xaml", UriKind.Relative)); } } } But it is not working. The Splash Page only showing. This is not navigating to another page. Please help me to resolve this problem.

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• WPF/C# - Sometimes my dropdowns/datepickers will stop functioning?

  - by BlargINC

  Q: Where should I check to track this down? Issue: Opening a view model in my application sometimes makes dropdowns/datepickers nonfunctional. ie. dropdown won't drop and the datepicker calendar won't come up I suspect a binding issue but don't see one. Dropdowns have normal things like strings, numbers. One drop has a list of mini views. Datepickers are bound to nullable dates set in the constructor of the viewmodel. Note: These same things work in other viewmodels/views. I can paste code, I'm just not sure what code is relevant here. Thank you for helping me :)

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• Sometimes my dropdowns/datepickers will stop functioning?

  - by BlargINC

  Q: Where should I check to track this down? Issue: Opening a view model in my application sometimes makes dropdowns/datepickers nonfunctional. ie. dropdown won't drop and the datepicker calendar won't come up I suspect a binding issue but don't see one. Dropdowns have normal things like strings, numbers. One drop has a list of mini views. Datepickers are bound to nullable dates set in the constructor of the viewmodel. Note: These same things work in other viewmodels/views. I can paste code, I'm just not sure what code is relevant here.

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• ObservableCollections in the ViewModel and IEnumerables in the Models?

  - by vidalsasoon

  Keep only ObservableCollections in the ViewModel and IEnumerables in the Model? Does following this general guideline make any sense? I'm thinking this is the way to go because the models don't care about updating the View with the RaiseNotifyChanged.

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• Data-binding taking too long to update

  - by Justin

  In my application I have this code in my view model: hiddenTextContainer.PreHideVerticalOffset = VerticalOffset; hiddenTextContainer.HiddenText = Text.Remove(SelectionStart, SelectionLength); hiddenTextContainer.HasHiddenText = true; hiddenTextContainer.NonHiddenTextStart = SelectionStart; Text = Text.Substring(SelectionStart, SelectionLength); SelectionStart = Text.Length; hiddenTextContainer.ImmediatePostHideVerticalOffset = VerticalOffset; This code is used to hide selected text in a textbox. Text is a string property data bound to the text property of a textbox and VerticalOffset is a double property data bound to the VerticalOffset property of that same textbox. I need to save the VerticalOffset before and after the hiding of selected text takes place, but with my code below both hiddenTextContainer.PreHideVerticalOffset and hiddenTextContainer.ImmediatePostHideVerticalOffset are always set to the same value no matter what. I have figured out that this is because the text of the textbox has not been updated by the time the code reaches: hiddenTextContainer.ImmediatePostHideVerticalOffset = VerticalOffset; Is there any way I can fix this?

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• The Information Driven Value Chain - Part 2

  - by Paul Homchick

  Normal 0 false false false EN-US X-NONE X-NONE DefSemiHidden="true" DefQFormat="false" DefPriority="99" LatentStyleCount="267" UnhideWhenUsed="false" QFormat="true" Name="Normal"/ UnhideWhenUsed="false" QFormat="true" Name="heading 1"/ UnhideWhenUsed="false" QFormat="true" Name="Title"/ UnhideWhenUsed="false" QFormat="true" Name="Subtitle"/ UnhideWhenUsed="false" QFormat="true" Name="Strong"/ UnhideWhenUsed="false" QFormat="true" Name="Emphasis"/ UnhideWhenUsed="false" Name="Table Grid"/ UnhideWhenUsed="false" QFormat="true" Name="No Spacing"/ UnhideWhenUsed="false" Name="Light Shading"/ UnhideWhenUsed="false" Name="Light List"/ UnhideWhenUsed="false" Name="Light Grid"/ UnhideWhenUsed="false" Name="Medium Shading 1"/ UnhideWhenUsed="false" Name="Medium Shading 2"/ UnhideWhenUsed="false" Name="Medium List 1"/ UnhideWhenUsed="false" Name="Medium List 2"/ UnhideWhenUsed="false" Name="Medium Grid 1"/ UnhideWhenUsed="false" Name="Medium Grid 2"/ UnhideWhenUsed="false" Name="Medium Grid 3"/ UnhideWhenUsed="false" Name="Dark List"/ UnhideWhenUsed="false" Name="Colorful Shading"/ UnhideWhenUsed="false" Name="Colorful List"/ UnhideWhenUsed="false" Name="Colorful Grid"/ UnhideWhenUsed="false" Name="Light Shading Accent 1"/ UnhideWhenUsed="false" Name="Light List Accent 1"/ UnhideWhenUsed="false" Name="Light Grid Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 1"/ UnhideWhenUsed="false" QFormat="true" Name="List Paragraph"/ UnhideWhenUsed="false" QFormat="true" Name="Quote"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Quote"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 1"/ UnhideWhenUsed="false" Name="Dark List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 1"/ UnhideWhenUsed="false" Name="Colorful List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 1"/ UnhideWhenUsed="false" Name="Light Shading Accent 2"/ UnhideWhenUsed="false" Name="Light List Accent 2"/ UnhideWhenUsed="false" Name="Light Grid Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 2"/ UnhideWhenUsed="false" Name="Dark List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 2"/ UnhideWhenUsed="false" Name="Colorful List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 2"/ UnhideWhenUsed="false" Name="Light Shading Accent 3"/ UnhideWhenUsed="false" Name="Light List Accent 3"/ UnhideWhenUsed="false" Name="Light Grid Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 3"/ UnhideWhenUsed="false" Name="Dark List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 3"/ UnhideWhenUsed="false" Name="Colorful List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 3"/ UnhideWhenUsed="false" Name="Light Shading Accent 4"/ UnhideWhenUsed="false" Name="Light List Accent 4"/ UnhideWhenUsed="false" Name="Light Grid Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 4"/ UnhideWhenUsed="false" Name="Dark List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 4"/ UnhideWhenUsed="false" Name="Colorful List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 4"/ UnhideWhenUsed="false" Name="Light Shading Accent 5"/ UnhideWhenUsed="false" Name="Light List Accent 5"/ UnhideWhenUsed="false" Name="Light Grid Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 5"/ UnhideWhenUsed="false" Name="Dark List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 5"/ UnhideWhenUsed="false" Name="Colorful List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 5"/ UnhideWhenUsed="false" Name="Light Shading Accent 6"/ UnhideWhenUsed="false" Name="Light List Accent 6"/ UnhideWhenUsed="false" Name="Light Grid Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 6"/ UnhideWhenUsed="false" Name="Dark List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 6"/ UnhideWhenUsed="false" Name="Colorful List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 6"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Book Title"/ /* Font Definitions */ @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin-top:0in; margin-right:0in; margin-bottom:10.0pt; margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} .MsoPapDefault {mso-style-type:export-only; margin-bottom:10.0pt; line-height:115%;} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} -- /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} In the first installment of this series, we looked at how companies have been set adrift down a churning  rapids of fast moving data, and how their supply chains (which used to be only about purchasing and logistics) had grown into value chains encompassing everything from their supplier's vendors all the way to the end consumer. This time we will look at the way investments have been made in enterprise software in an effort to create and manage value, and how Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} systems are moving from a controlled-process approach design towards gathering and using dynamically using information. Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

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• 11gR2???---gipc????

  - by Allen Gao

  Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE DefSemiHidden="true" DefQFormat="false" DefPriority="99" LatentStyleCount="267" UnhideWhenUsed="false" QFormat="true" Name="Normal"/ UnhideWhenUsed="false" QFormat="true" Name="heading 1"/ UnhideWhenUsed="false" QFormat="true" Name="Title"/ UnhideWhenUsed="false" QFormat="true" Name="Subtitle"/ UnhideWhenUsed="false" QFormat="true" Name="Strong"/ UnhideWhenUsed="false" QFormat="true" Name="Emphasis"/ UnhideWhenUsed="false" Name="Table Grid"/ UnhideWhenUsed="false" QFormat="true" Name="No Spacing"/ UnhideWhenUsed="false" Name="Light Shading"/ UnhideWhenUsed="false" Name="Light List"/ UnhideWhenUsed="false" Name="Light Grid"/ UnhideWhenUsed="false" Name="Medium Shading 1"/ UnhideWhenUsed="false" Name="Medium Shading 2"/ UnhideWhenUsed="false" Name="Medium List 1"/ UnhideWhenUsed="false" Name="Medium List 2"/ UnhideWhenUsed="false" Name="Medium Grid 1"/ UnhideWhenUsed="false" Name="Medium Grid 2"/ UnhideWhenUsed="false" Name="Medium Grid 3"/ UnhideWhenUsed="false" Name="Dark List"/ UnhideWhenUsed="false" Name="Colorful Shading"/ UnhideWhenUsed="false" Name="Colorful List"/ UnhideWhenUsed="false" Name="Colorful Grid"/ UnhideWhenUsed="false" Name="Light Shading Accent 1"/ UnhideWhenUsed="false" Name="Light List Accent 1"/ UnhideWhenUsed="false" Name="Light Grid Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 1"/ UnhideWhenUsed="false" QFormat="true" Name="List Paragraph"/ UnhideWhenUsed="false" QFormat="true" Name="Quote"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Quote"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 1"/ UnhideWhenUsed="false" Name="Dark List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 1"/ UnhideWhenUsed="false" Name="Colorful List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 1"/ UnhideWhenUsed="false" Name="Light Shading Accent 2"/ UnhideWhenUsed="false" Name="Light List Accent 2"/ UnhideWhenUsed="false" Name="Light Grid Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 2"/ UnhideWhenUsed="false" Name="Dark List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 2"/ UnhideWhenUsed="false" Name="Colorful List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 2"/ UnhideWhenUsed="false" Name="Light Shading Accent 3"/ UnhideWhenUsed="false" Name="Light List Accent 3"/ UnhideWhenUsed="false" Name="Light Grid Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 3"/ UnhideWhenUsed="false" Name="Dark List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 3"/ UnhideWhenUsed="false" Name="Colorful List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 3"/ UnhideWhenUsed="false" Name="Light Shading Accent 4"/ UnhideWhenUsed="false" Name="Light List Accent 4"/ UnhideWhenUsed="false" Name="Light Grid Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 4"/ UnhideWhenUsed="false" Name="Dark List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 4"/ UnhideWhenUsed="false" Name="Colorful List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 4"/ UnhideWhenUsed="false" Name="Light Shading Accent 5"/ UnhideWhenUsed="false" Name="Light List Accent 5"/ UnhideWhenUsed="false" Name="Light Grid Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 5"/ UnhideWhenUsed="false" Name="Dark List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 5"/ UnhideWhenUsed="false" Name="Colorful List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 5"/ UnhideWhenUsed="false" Name="Light Shading Accent 6"/ UnhideWhenUsed="false" Name="Light List Accent 6"/ UnhideWhenUsed="false" Name="Light Grid Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 6"/ UnhideWhenUsed="false" Name="Dark List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 6"/ UnhideWhenUsed="false" Name="Colorful List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 6"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Book Title"/ classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";} ??????,????11gR2 ??????gipcd(????ora.gipcd)????,????gipc???,????????????? ????,??oracle????,??????????,??????????,???????????cache fusion ?????????????,?????????????oracle????????????,??????,???????(?????????Note 220970.1:RAC: Frequently Asked Questions,?????????)???????,???????????/????,?????????????? ??,?10gR2 ?11gR1????,?????????????,??:Linux bonding, AIX EtherChannel, HP-UX APA ???????????????????????????????(??,????????????????,???????)???????10g ?11.1 ??????,??????????????????(???????),????????????????subnet??????,????,?????oracle???????????,??????????????,???????????,??????????????,??????????????????????,??:????,?????? ?????????,?11gR2??(????,?11.2.0.2??),oracle??????????????,?????gipc(Grid IPC)???,??????????gipcd.bin?????????,??????? 1. ??????,????????????,?????????,?????????gpnp profile??????????????????? 2. ???????????,??????????,???????????????? 3. ?????????????,?????????/???????????,????????,???????? ??,oracle????????????????????????/??????,??,?????????? ??,???????????????,?????gipc ?HAIP????????????,??????????????,???????????????????:?????????,??:ocssd.bin????,crsd.bin??????;???:oracle RAC ??,??:ASM ??????,?????????????,?????????????????????gipc,???????????,?????????????????????,????????????????,?????,????????????,??,?????????????????gipc???,oracle ??????????????,??????????????,????????????????,HAIP ????,????oracle RAC??????/?????????,????????????????,????,????????HAIP?????,????????????ASM??,?????(???NM??)??????????,?????????????????HAIP,????????,????,???????? “Redundant Interconnect with Highly Available IP (HAIP) ??”? ???,???????????????????????? 1.??????gipcd.log 2013-07-17 12:28:28.071: [ default][3041003216]gipcd START pid=22337 Oracle Grid IPC Daemon 2013-07-17 12:28:28.072: [ GIPCD][3041003216] gipcdMain: gipcd Started <<<<<< gipcd????????? …… 2013-07-17 12:28:29.046: [ GPNP][3041003216]clsgpnp_getCachedProfileEx: [at clsgpnp.c:613] Result: (26) CLSGPNP_NO_PROFILE. Can't get offline GPnP service profile: local gpnpd is up and running. Use getProfile instead. 2013-07-17 12:28:29.046: [ GPNP][3041003216]clsgpnp_getCachedProfileEx: [at clsgpnp.c:623] Result: (26) CLSGPNP_NO_PROFILE. Failed to get offline GPnP service profile. 2013-07-17 12:28:29.066: [ GPNP][3041003216]clsgpnpm_newWiredMsg: [at clsgpnpm.c:741] Msg-reply has soap fault 10 (Operation returned Retry (error CLSGPNP_CALL_AGAIN)) [uri "http://www.grid-pnp.org/2005/12/gpnp-errors#"] <<<< gipcd ????gpnp profile?????????log??GI??????,?????????,?????gpnpd???????? …… 2013-07-17 12:28:39.342: [ CLSINET][3023027088] # 0 Interface 'eth1',ip='192.168.254.30',mac='00-0c-29-a8-14-65',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 12:28:39.342: [ CLSINET][3023027088] # 1 Interface 'eth2',ip='192.168.254.31',mac='00-0c-29-a8-14-6f',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' <<<<< gipcd ????????????????,???????2??????????? …… 2013-07-17 12:28:39.344: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local bootstrap interface for node 'single1', haName 'gipcd_ha_name', inf 'mcast://230.0.1.0:42424/192.168.254.30' 2013-07-17 12:28:39.344: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local interface for node 'single1', haName 'gipcd_ha_name', inf '192.168.254.30:46782' 2013-07-17 12:28:39.345: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local bootstrap interface for node 'single1', haName 'gipcd_ha_name', inf 'mcast://230.0.1.0:42424/192.168.254.31' 2013-07-17 12:28:39.345: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local interface for node 'single1', haName 'gipcd_ha_name', inf '192.168.254.31:39332' <<<<<<< gipcd ????????(????????????????)?endpoint ????? …… 2013-07-17 12:28:56.767: [GIPCHGEN][3023027088] gipchaNodeCreate: adding new node 0x9c107d8 { host 'single2', haName 'gipcd_ha_name', srcLuid 465fb26d-8b46eb95, dstLuid 00000000-00000000 numInf 0, contigSeq 0, lastAck 0, lastValidAck 0, sendSeq [0 : 0], createTime 797327224, flags 0x0 } <<<<< ???????? …… 2013-07-17 12:28:58.415: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created remote interface for node 'single2', haName 'gipcd_ha_name', inf 'udp://192.168.254.33:16663' 2013-07-17 12:28:58.415: [GIPCHGEN][3025128336] gipchaWorkerAttachInterface: Interface attached inf 0x9c0bb60 { host 'single2', haName 'gipcd_ha_name', local 0xb4c4e590, ip '192.168.254.33:16663', subnet '192.168.254.0', mask '255.255.255.0', numRef 0, numFail 0, flags 0x6 } 2013-07-17 12:28:58.415: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created remote interface for node 'single2', haName 'gipcd_ha_name', inf 'udp://192.168.254.32:17578' 2013-07-17 12:28:58.415: [GIPCHGEN][3025128336] gipchaWorkerAttachInterface: Interface attached inf 0x9c0a900 { host 'single2', haName 'gipcd_ha_name', local 0xb4cb8eb8, ip '192.168.254.32:17578', subnet '192.168.254.0', mask '255.255.255.0', numRef 0, numFail 0, flags 0x6 } <<<<<< gipcd ??????????????? …… 2013-07-17 12:29:36.120: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 0] eth1 - rank 99, avgms 6.326531 [ 257 / 250 / 245 ] 2013-07-17 12:29:36.120: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 1] eth2 - rank 99, avgms 5.182186 [ 259 / 250 / 247 ] <<<<<gipcd ??????????? ……  2. ?????????down???gipcd.log? 2013-07-17 13:23:20.346: [ CLSINET][3027229584] Returning NETDATA: 2 interfaces 2013-07-17 13:23:20.346: [ CLSINET][3027229584] # 0 Interface 'eth1',ip='192.168.254.30',mac='00-0c-29-a8-14-65',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 13:23:20.346: [ CLSINET][3027229584] # 1 Interface 'eth2',ip='192.168.254.31',mac='00-0c-29-a8-14-6f',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 13:23:20.359: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 0] eth1 - rank 99, avgms 1.560694 [ 171 / 173 / 173 ] 2013-07-17 13:23:20.359: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 1] eth2 - rank 99, avgms 1.802326 [ 172 / 172 / 172 ] <<<<<<<< gipcd ?????????? …… +++????“ifconfig eth1 down”????????????? …… 2013-07-17 13:23:44.397: [ CLSINET][3027229584] # 0 Interface 'eth2',ip='192.168.254.31',mac='00-0c-29-a8-14-6f',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 13:23:44.397: [GIPCDMON][3027229584] gipcdMonitorUpdate: interface went down - [ ip 192.168.254.30, subnet 192.168.254.0, mask 255.255.255.0 ] 2013-07-17 13:23:44.397: [GIPCDMON][3027229584] gipcdMonitorUpdate: msg sent to client thread (([update(ip: 192.168.254.30, mask: 255.255.255.0, subnet 192.168.254.0), state(gipcdadapterstateDown)])) <<<<<<<< gipcd ????eth1 down?,???????(??:ocssd.bin)????? …… 2013-07-17 13:23:44.426: [GIPCHGEN][3025128336] gipchaInterfaceDisable: disabling interface 0xb4c4e590 { host '', haName 'gipcd_ha_name', local (nil), ip '192.168.254.30', subnet '192.168.254.0', mask '255.255.255.0', numRef 0, numFail 1, flags 0x1cd } 2013-07-17 13:23:44.428: [GIPCHGEN][3025128336] gipchaInterfaceDisable: disabling interface 0x9c0bb60 { host 'single2', haName 'gipcd_ha_name', local 0xb4c4e590, ip '192.168.254.33:16663', subnet '192.168.254.0', mask '255.255.255.0', numRef 0, numFail 0, flags 0x86 } 2013-07-17 13:23:44.428: [GIPCHALO][3025128336] gipchaLowerCleanInterfaces: performing cleanup of disabled interface 0x9c0bb60 { host 'single2', haName 'gipcd_ha_name', local 0xb4c4e590, ip '192.168.254.33:16663', subnet '192.168.254.0', mask '255.255.255.0', numRef 0, numFail 0, flags 0xa6 } <<<<<<<<gipcd ????????eth1 ???,????????????????????? …… 2013-07-17 13:24:08.747: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 0] eth2 - rank 99, avgms 1.955307 [ 204 / 181 / 179 ] <<<<<<<gipcd ???????????? ??:??????,??????????????????,????????????????,???????????eth1??HAIP,?failover?eth2 ?,????,????ASM??????? 3. ???eht1???? ++ ????”ifconfig eth1 up”????eth1 2013-07-17 13:36:31.260: [GIPCDMON][3027229584] gipcdMonitorUpdate: New Interface found - [ ip 192.168.254.30, subnet 192.168.254.0, mask 255.255.255.0 ] 2013-07-17 13:36:31.260: [GIPCDMON][3027229584] gipcdMonitorUpdate: msg sent to client thread (([update(ip: 192.168.254.30, mask: 255.255.255.0, subnet 192.168.254.0), state(gipcdadapterstateUp)])) <<<<< gpicd ?????????? …… 2013-07-17 13:36:31.471: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local bootstrap interface for node 'single1', haName 'gipcd_ha_name', inf 'mcast://230.0.1.0:42424/192.168.254.30' 2013-07-17 13:36:31.471: [GIPCHTHR][3025128336] gipchaWorkerUpdateInterface: created local interface for node 'single1', haName 'gipcd_ha_name', inf '192.168.254.30:55548' <<<<<< ?????endpoint???? …… 2013-07-17 13:37:11.493: [ CLSINET][3027229584] Returning NETDATA: 2 interfaces 2013-07-17 13:37:11.493: [ CLSINET][3027229584] # 0 Interface 'eth1',ip='192.168.254.30',mac='00-0c-29-a8-14-65',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 13:37:11.493: [ CLSINET][3027229584] # 1 Interface 'eth2',ip='192.168.254.31',mac='00-0c-29-a8-14-6f',mask='255.255.255.0',net='192.168.254.0',use='cluster_interconnect' 2013-07-17 13:37:11.510: [GIPCDMON][3027229584] gipcdMonitorSaveInfMetrics: inf[ 0] eth2 - rank 99, avgms 6.141304 [ 307 / 184 / 184 ] <<<<<<<< <<<<<<<< gipcd??????? ??:??????,??????????????????,????????????????,????????failover?eth2??HAIP,?????eth1 ?,????,????ASM??????? ??,????????,gipcd ???????????,??,????????,?????????(????)????,gipcd???????????,??????HAIP???,???????????????(??:Linux bonding,etherchannel?),???????????,????????? ??????????????11gR2 ??????gipcd????,????????????,?????????? ??????????,???????????,??“??:11gR2???---gipc????"?

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• ???????,???????????

  - by ??-Oracle

  Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE ??: 1.???????; 2.??????????????????; 3.????????????????,??????????,????????; ??: ?????????: SQL> create table test_b (id number(10)) tablespace bbb; Table created. SQL> insert into test_b values (1); 1 row created. SQL> commit; NAME --------------------------------------------------------------------------------     FILE# ---------- /opt/oracle/oradata/R11203/aaa.dbf        10 /opt/oracle/oradata/R11203/bbb.dbf        11 11 rows selected. SQL> host ??????,?????? bash-4.2$ ls -al /opt/oracle/oradata/R11203/bbb.dbf -rw-rw----   1 oracle     dba        10493952 Apr  4 09:53 /opt/oracle/oradata/R11203/bbb.dbf bash-4.2$ mv /opt/oracle/oradata/R11203/bbb.dbf /opt/oracle/oradata/R11203/bbb.dbf.bak bash-4.2$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Fri Apr 4 09:55:03 2014 Copyright (c) 1982, 2011, Oracle.  All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> alter tablespace bbb read only; alter tablespace bbb read only * ERROR at line 1: ORA-01116: error in opening database file 11 ORA-01110: data file 11: '/opt/oracle/oradata/R11203/bbb.dbf' ORA-27041: unable to open file HPUX-ia64 Error: 2: No such file or directory Additional information: 3 SQL> shutdown immediate; ORA-01116: error in opening database file 11 ORA-01110: data file 11: '/opt/oracle/oradata/R11203/bbb.dbf' ORA-27041: unable to open file HPUX-ia64 Error: 2: No such file or directory Additional information: 3 SQL> select status from v$instance; STATUS ------------ OPEN SQL> alter system switch logfile; System altered. SQL> / System altered. SQL> / System altered. SQL>/ System altered. SQL> / System altered. SQL> / System altered. SQL> ?? SQL> shutdown immediate; ORA-01116: error in opening database file 11 ORA-01110: data file 11: '/opt/oracle/oradata/R11203/bbb.dbf' ORA-27041: unable to open file HPUX-ia64 Error: 2: No such file or directory Additional information: 3 SQL> shutdown abort; ORACLE instance shut down. ???????mount?? SQL> startup mount; ORACLE instance started. Total System Global Area  329859072 bytes Fixed Size                  2182336 bytes Variable Size             285213504 bytes Database Buffers           37748736 bytes Redo Buffers                4714496 bytes Database mounted. ??alter database create datafile <> as ....???,???????????: SQL> alter database create datafile 11; Database altered. ???????redo log????????? SQL> recover datafile 11; Media recovery complete. SQL> alter database open; Database altered. SQL> select * from test_b;        ID ----------         1 DefSemiHidden="true" DefQFormat="false" DefPriority="99" LatentStyleCount="267" UnhideWhenUsed="false" QFormat="true" Name="Normal"/ UnhideWhenUsed="false" QFormat="true" Name="heading 1"/ UnhideWhenUsed="false" QFormat="true" Name="Title"/ UnhideWhenUsed="false" QFormat="true" Name="Subtitle"/ UnhideWhenUsed="false" QFormat="true" Name="Strong"/ UnhideWhenUsed="false" QFormat="true" Name="Emphasis"/ UnhideWhenUsed="false" Name="Table Grid"/ UnhideWhenUsed="false" QFormat="true" Name="No Spacing"/ UnhideWhenUsed="false" Name="Light Shading"/ UnhideWhenUsed="false" Name="Light List"/ UnhideWhenUsed="false" Name="Light Grid"/ UnhideWhenUsed="false" Name="Medium Shading 1"/ UnhideWhenUsed="false" Name="Medium Shading 2"/ UnhideWhenUsed="false" Name="Medium List 1"/ UnhideWhenUsed="false" Name="Medium List 2"/ UnhideWhenUsed="false" Name="Medium Grid 1"/ UnhideWhenUsed="false" Name="Medium Grid 2"/ UnhideWhenUsed="false" Name="Medium Grid 3"/ UnhideWhenUsed="false" Name="Dark List"/ UnhideWhenUsed="false" Name="Colorful Shading"/ UnhideWhenUsed="false" Name="Colorful List"/ UnhideWhenUsed="false" Name="Colorful Grid"/ UnhideWhenUsed="false" Name="Light Shading Accent 1"/ UnhideWhenUsed="false" Name="Light List Accent 1"/ UnhideWhenUsed="false" Name="Light Grid Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 1"/ UnhideWhenUsed="false" QFormat="true" Name="List Paragraph"/ UnhideWhenUsed="false" QFormat="true" Name="Quote"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Quote"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 1"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 1"/ UnhideWhenUsed="false" Name="Dark List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 1"/ UnhideWhenUsed="false" Name="Colorful List Accent 1"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 1"/ UnhideWhenUsed="false" Name="Light Shading Accent 2"/ UnhideWhenUsed="false" Name="Light List Accent 2"/ UnhideWhenUsed="false" Name="Light Grid Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 2"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 2"/ UnhideWhenUsed="false" Name="Dark List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 2"/ UnhideWhenUsed="false" Name="Colorful List Accent 2"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 2"/ UnhideWhenUsed="false" Name="Light Shading Accent 3"/ UnhideWhenUsed="false" Name="Light List Accent 3"/ UnhideWhenUsed="false" Name="Light Grid Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 3"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 3"/ UnhideWhenUsed="false" Name="Dark List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 3"/ UnhideWhenUsed="false" Name="Colorful List Accent 3"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 3"/ UnhideWhenUsed="false" Name="Light Shading Accent 4"/ UnhideWhenUsed="false" Name="Light List Accent 4"/ UnhideWhenUsed="false" Name="Light Grid Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 4"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 4"/ UnhideWhenUsed="false" Name="Dark List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 4"/ UnhideWhenUsed="false" Name="Colorful List Accent 4"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 4"/ UnhideWhenUsed="false" Name="Light Shading Accent 5"/ UnhideWhenUsed="false" Name="Light List Accent 5"/ UnhideWhenUsed="false" Name="Light Grid Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 5"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 5"/ UnhideWhenUsed="false" Name="Dark List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 5"/ UnhideWhenUsed="false" Name="Colorful List Accent 5"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 5"/ UnhideWhenUsed="false" Name="Light Shading Accent 6"/ UnhideWhenUsed="false" Name="Light List Accent 6"/ UnhideWhenUsed="false" Name="Light Grid Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Shading 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium List 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 1 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 2 Accent 6"/ UnhideWhenUsed="false" Name="Medium Grid 3 Accent 6"/ UnhideWhenUsed="false" Name="Dark List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Shading Accent 6"/ UnhideWhenUsed="false" Name="Colorful List Accent 6"/ UnhideWhenUsed="false" Name="Colorful Grid Accent 6"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Emphasis"/ UnhideWhenUsed="false" QFormat="true" Name="Subtle Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Intense Reference"/ UnhideWhenUsed="false" QFormat="true" Name="Book Title"/ /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.5pt; mso-bidi-font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-font-kerning:1.0pt;}

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• Where does the light come from, using Maya/Panda3D?

  - by Aerovistae

  Total noob to Maya. Total noob to Panda3D. Planning on becoming really good at both as soon as I have free time to do so, but right now I have an assignment due in a few hours which requires this: (The part which confuses me is bolded.) Model and texture a vehicle and two different obstacles Build a scene graph in Panda with a plane, the vehicle, several copies of each of the obstacles, and (at least) a direction light Program vehicle movement, constrained to a plane (no terrain) Working headlights Vehicle collides with obstacles How do I attach a light source to a model? I'm assuming this is done in Panda3D but I'm sufficiently new to this that I wouldn't be astonished to hear it's part of the model.

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• How to implement the light trails for a tron game?

  - by Link

  Well I was creating a TRON style game, but had an issue with creating the actual light trails for the game. What I'm doing currently is I have an array the same size as my window in pixel size, implemented like this: int* collision[800][600]; Then when the bike goes on a certain pixel, it is marked with a 1 for traveled on. However what is the most efficient way to create a working light trail display? I tried to do something like this: int i, j; for(i=0; i<800; i++) for(j=0; j<600; j++) if(*collision[i][j] == 1) Image::applySurface(i, j, trailSurface, gameScreen); But it isn't working properly? It just fills the whole screen with a sprite instead. Whats a better/faster/working way to do this?

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• "Light Field" : prendre une photo puis faire le point, la technologie est-elle la prochaine révolution du traitement informatique de l'image ?

  Lytro : prendre une photo puis faire le point La technologie "Light Field" est-elle la prochaine révolution du traitement informatique de l'image ? Depuis quelques années, différents centres de recherche étudient une méthode de prise de vue nommée "light field". Le but est de remplacer la capture d'une image par la capture du flux de lumière de la scène. Il est alors possible de générer une image en modifiant le point de netteté. Après, une exploitation industrielle par la société RayTrix, une solution pour les smartphone par la société Pelican Imagine, c'est au tour de

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• How to turn off the Acer Aspire 7738 Power Button LED light?

  - by Kriem

  The Acer Aspire 7738 has a large blue light emitting power button, top left on the keyboard. Its light is rather distracting and I want to turn it off. How can I disable this light?

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• OpenGL render vs. own Phong Illumination Implementation

  - by Myx

  Hello: I have implemented a Phong Illumination Scheme using a camera that's centered at (0,0,0) and looking directly at the sphere primitive. The following are the relevant contents of the scene file that is used to view the scene using OpenGL as well as to render the scene using my own implementation: ambient 0 1 0 dir_light 1 1 1 -3 -4 -5 # A red sphere with 0.5 green ambiance, centered at (0,0,0) with radius 1 material 0 0.5 0 1 0 0 1 0 0 0 0 0 0 0 0 10 1 0 sphere 0 0 0 0 1 The resulting image produced by OpenGL. The image that my rendering application produces. As you can see, there are various differences between the two: The specular highlight on my image is smaller than the one in OpenGL. The diffuse surface seems to not diffuse in the correct way, resulting in the yellow region to be unneccessarily large in my image, whereas in OpenGL there's a nice dark green region closer to the bottom of the sphere The color produced by OpenGL is much darker than the one in my image. Those are the most prominent three differences that I see. The following is my implementation of the Phong illumination: R3Rgb Phong(R3Scene *scene, R3Ray *ray, R3Intersection *intersection) { R3Rgb radiance; if(intersection->hit == 0) { radiance = scene->background; return radiance; } R3Vector normal = intersection->normal; R3Rgb Kd = intersection->node->material->kd; R3Rgb Ks = intersection->node->material->ks; // obtain ambient term R3Rgb intensity_ambient = intersection->node->material->ka*scene->ambient; // obtain emissive term R3Rgb intensity_emission = intersection->node->material->emission; // for each light in the scene, obtain calculate the diffuse and specular terms R3Rgb intensity_diffuse(0,0,0,1); R3Rgb intensity_specular(0,0,0,1); for(unsigned int i = 0; i < scene->lights.size(); i++) { R3Light *light = scene->Light(i); R3Rgb light_color = LightIntensity(scene->Light(i), intersection->position); R3Vector light_vector = -LightDirection(scene->Light(i), intersection->position); // calculate diffuse reflection intensity_diffuse += Kd*normal.Dot(light_vector)*light_color; // calculate specular reflection R3Vector reflection_vector = 2.*normal.Dot(light_vector)*normal-light_vector; reflection_vector.Normalize(); R3Vector viewing_vector = ray->Start() - intersection->position; viewing_vector.Normalize(); double n = intersection->node->material->shininess; intensity_specular += Ks*pow(max(0.,viewing_vector.Dot(reflection_vector)),n)*light_color; } radiance = intensity_emission+intensity_ambient+intensity_diffuse+intensity_specular; return radiance; } Here are the related LightIntensity(...) and LightDirection(...) functions: R3Vector LightDirection(R3Light *light, R3Point position) { R3Vector light_direction; switch(light->type) { case R3_DIRECTIONAL_LIGHT: light_direction = light->direction; break; case R3_POINT_LIGHT: light_direction = position-light->position; break; case R3_SPOT_LIGHT: light_direction = position-light->position; break; } light_direction.Normalize(); return light_direction; } R3Rgb LightIntensity(R3Light *light, R3Point position) { R3Rgb light_intensity; double distance; double denominator; if(light->type != R3_DIRECTIONAL_LIGHT) { distance = (position-light->position).Length(); denominator = light->constant_attenuation + light->linear_attenuation*distance + light->quadratic_attenuation*distance*distance; } switch(light->type) { case R3_DIRECTIONAL_LIGHT: light_intensity = light->color; break; case R3_POINT_LIGHT: light_intensity = light->color/denominator; break; case R3_SPOT_LIGHT: R3Vector from_light_to_point = position - light->position; light_intensity = light->color*( pow(light->direction.Dot(from_light_to_point), light->angle_attenuation)); break; } return light_intensity; } I would greatly appreciate any suggestions as to any implementation errors that are apparent. I am wondering if the differences could be occurring simply because of the gamma values used for display by OpenGL and the default gamma value for my display. I also know that OpenGL (or at least tha parts that I was provided) can't cast shadows on objects. Not that this is relevant for the point in question, but it just leads me to wonder if it's simply display and capability differences between OpenGL and what I am trying to do. Thank you for your help.

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• WPF Treeview contextmenu IsChecked binding MVVM

  - by BrettRobi

  I've got a TreeView to which I associate a ContextMenu. That contextmenu has an item whose IsChecked property I want to bind to my ViewModel. Since I am using a tree each treeitem is bound to a subproperty of my ViewModel. In the VS2010 output window I am seeing this databinding error: BindingExpression path error: 'IsAutoStart' property not found on 'object' ''HostMgmtViewModel' (HashCode=12565727)'. BindingExpression:Path=IsAutoStart; DataItem='HostMgmtViewModel' This clearly shows it is trying to bind to my ViewModel and not to the treeitem's associated data. How do I bind to the correct object? Remember my contextmenu is associated with the whole TreeView not to the specific treeitem.

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• Question on MVVM pattern on WPF ?

  - by Ashish Ashu

  I have a user control let say UC1 . This user control have viewmodel UC1_vm. In the usercontrol UC1 I have a canvas in which drawing curve logic is implemented. This drawing curve logic is based on the data points property in the view model ( UC1_vm). The data points property inside the view model change with different condition. The generation of data points is written in the View Model. I want to bind the data points property in the view model to the draw curve logic inside the User control (view). I want whenever the data point property is changed in the view model , the canvas calls the draw curve method. Can I set the set any property of canvas which when changed it calls the on paint logic auto matically? Please suggest me the approach of implementing this scenario!!

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• WPF/MVVM:Set multiple datacontext to ONE usercontrol

  - by msfanboy

  Hello, I have a UserControl with 5 small UserControl which are parts of the first UserControl. The first UserControl is datatemplated by a MainViewModel type. The other 5 small UserControls have also set the DataContext to this MainViewModel type. Now I want additionally that those 5 UserControls get a 2nd DataContext to access other public properties of another ViewModel . How can I do that?

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• wpf toolkit (Feb 2010) datagrid with MVVM - style reveals name of view model on 'spare column'

  - by Andy Clarke

  Hi, I've just updated my app with the latest WPF toolkit and I've now got an issue with my styling. When I bind some data with, for example, two columns to the grid, the spare area at the right shows the name of the ViewModel in the header. I can understand why, because the data grids data context is the ViewModel and I'm defining my header style as follows ... <WpfToolkit:DataGridHeaderBorder <Border BorderBrush="Blue" BorderThickness="0,1,0,0"> <TextBlock Text="{Binding}" Margin="4,0,4,0" /> </Border> </WpfToolkit:DataGridHeaderBorder> Do I now need a separate style for the 'spare column' or something? Can anyone assist please? Cheers, Andy

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• MVVM/WPF: DataTemplate is not changed in Wizard

  - by msfanboy

  Hello, I wonder why my contentcontrol(headeredcontentcontrol) does not change the datatemplates when I press the previous/next button. While debugging everything seems ok means I jump forth and back the collection of wizardpages but always the first page is shown and its header text not the usercontrol is visible. What do I have forgotten? using System; using System.Collections.Generic; using System.Linq; using System.Text; using GalaSoft.MvvmLight.Command; using System.Collections.ObjectModel; using System.Diagnostics; using System.ComponentModel; namespace TBM.ViewModel { public class WizardMainViewModel { WizardPageViewModelBase _currentPage; ReadOnlyCollection _pages; RelayCommand _moveNextCommand; RelayCommand _movePreviousCommand; public WizardMainViewModel() { this.CurrentPage = this.Pages[0]; } public RelayCommand MoveNextCommand { get { return _moveNextCommand ?? (_moveNextCommand = new RelayCommand(() => this.MoveToNextPage(), () => this.CanMoveToNextPage)); } } public RelayCommand MovePreviousCommand { get { return _movePreviousCommand ?? (_movePreviousCommand = new RelayCommand( () => this.MoveToPreviousPage(), () => this.CanMoveToPreviousPage)); } } bool CanMoveToPreviousPage { get { return 0 < this.CurrentPageIndex; } } bool CanMoveToNextPage { get { return this.CurrentPage != null && this.CurrentPage.IsValid(); } } void MoveToPreviousPage() { this.CurrentPage = this.Pages[this.CurrentPageIndex - 1]; } void MoveToNextPage() { if (this.CurrentPageIndex < this.Pages.Count - 1) this.CurrentPage = this.Pages[this.CurrentPageIndex + 1]; } /// <summary> /// Returns the page ViewModel that the user is currently viewing. /// </summary> public WizardPageViewModelBase CurrentPage { get { return _currentPage; } private set { if (value == _currentPage) return; if (_currentPage != null) _currentPage.IsCurrentPage = false; _currentPage = value; if (_currentPage != null) _currentPage.IsCurrentPage = true; this.OnPropertyChanged("CurrentPage"); this.OnPropertyChanged("IsOnLastPage"); } } public bool IsOnLastPage { get { return this.CurrentPageIndex == this.Pages.Count - 1; } } /// <summary> /// Returns a read-only collection of all page ViewModels. /// </summary> public ReadOnlyCollection<WizardPageViewModelBase> Pages { get { return _pages ?? CreatePages(); } } ReadOnlyCollection<WizardPageViewModelBase> CreatePages() { WizardPageViewModelBase welcomePage = new WizardWelcomePageViewModel(); WizardPageViewModelBase schoolclassPage = new WizardSchoolclassSubjectPageViewModel(); WizardPageViewModelBase lessonPage = new WizardLessonTimesPageViewModel(); WizardPageViewModelBase timetablePage = new WizardTimeTablePageViewModel(); WizardPageViewModelBase finishPage = new WizardFinishPageViewModel(); var pages = new List<WizardPageViewModelBase>(); pages.Add(welcomePage); pages.Add(schoolclassPage); pages.Add(lessonPage); pages.Add(timetablePage); pages.Add(finishPage); return _pages = new ReadOnlyCollection<WizardPageViewModelBase>(pages); } int CurrentPageIndex { get { if (this.CurrentPage == null) { Debug.Fail("Why is the current page null?"); return -1; } return this.Pages.IndexOf(this.CurrentPage); } } public event PropertyChangedEventHandler PropertyChanged; void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = this.PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName)); } } } <UserControl x:Class="TBM.View.WizardMainView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:ViewModel="clr-namespace:TBM.ViewModel" xmlns:View="clr-namespace:TBM.View" mc:Ignorable="d" > <UserControl.Resources> <DataTemplate DataType="{x:Type ViewModel:WizardWelcomePageViewModel}"> <View:WizardWelcomePageView /> </DataTemplate> <DataTemplate DataType="{x:Type ViewModel:WizardSchoolclassSubjectPageViewModel}"> <View:WizardSchoolclassSubjectPageView /> </DataTemplate> <DataTemplate DataType="{x:Type ViewModel:WizardLessonTimesPageViewModel}"> <View:WizardLessonTimesPageView /> </DataTemplate> <DataTemplate DataType="{x:Type ViewModel:WizardTimeTablePageViewModel}"> <View:WizardTimeTablePageView /> </DataTemplate> <DataTemplate DataType="{x:Type ViewModel:WizardFinishPageViewModel}"> <View:WizardFinishPageView /> </DataTemplate> <!-- This Style inherits from the Button style seen above. --> <Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="moveNextButtonStyle"> <Setter Property="Content" Value="Next" /> <Style.Triggers> <DataTrigger Binding="{Binding Path=IsOnLastPage}" Value="True"> <Setter Property="Content" Value="Finish}" /> </DataTrigger> </Style.Triggers> </Style> <ViewModel:WizardMainViewModel x:Key="WizardMainViewModelID" /> </UserControl.Resources> <Grid DataContext="{Binding ., Source={StaticResource WizardMainViewModelID}}" > <Grid.RowDefinitions> <RowDefinition Height="310*" /> <RowDefinition Height="51*" /> </Grid.RowDefinitions> <!-- CONTENT --> <Grid Grid.Row="0" Background="LightGoldenrodYellow"> <HeaderedContentControl Content="{Binding CurrentPage}" Header="{Binding Path=CurrentPage.DisplayName}" /> </Grid> <!-- NAVIGATION BUTTONS --> <Grid Grid.Row="1" Background="Aquamarine"> <StackPanel HorizontalAlignment="Center" Orientation="Horizontal"> <Button Command="{Binding MovePreviousCommand}" Content="Previous" /> <Button Command="{Binding MoveNextCommand}" Style="{StaticResource moveNextButtonStyle}" Content="Next" /> <Button Command="{Binding CancelCommand}" Content="Cancel" /> </StackPanel> </Grid> </Grid>

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