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  • A Form(?) appears briefly outside of Form1 when adding a control to it

    - by ispiro
    I have a program which creates new Controls (actually - Form's with TopLevel = false) and puts them on a Panel which is on Form1. For some reason, this is usually followed by what seems like a Form appearing very briefly outside of Form1. It's hard to tell exactly what's happening because it's so brief. Perhaps it's Form1 moving there (and changing its size) and then returning. Or perhaps it's the Form that's being put on Form1 that appears there (though how could that happen at all? It's out of Form1!). I couldn't find anything in the code that might cause it, and the whole code is way too long to post here. (The relevant code is simply: MyPanel.Controls.Add(newForm);.) Is there any known bug that might cause this?

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  • why winform using external dll(VC) and ocx(VC) control can only import one?

    - by jack
    we have a .net framework application with a vc dll and a vc ocx, and now if we only import one dll ,it is ok, but when we import both, it will pop a messagebox saying: Debug Assertion Failed! and i studied the child module of our application that import the vc dll, i found after the framework import vc ocx and initialize , then the function LoadLibrary in our module importing the vc dll would return 0, that means memory limited or call improperly, i use getlasterror() the error code is 1114. so it is very frustrated ,hope someone can help me.

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  • How to control number of leading spaces in a GtkWidget?

    - by Jack
    How do I set the leading spaces in a GtkWidget? as you can see into below imagem, username/password widgets are a bit away from horizontal line when the window begins My code: GtkWidget *window; GtkWidget *login_label; GtkWidget *username_label, *password_label; GtkWidget *username_entry, *password_entry; GtkWidget *ok_button; GtkWidget *hbox0, *hbox1, *hbox2, *hbox3; GtkWidget *vbox; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(window), "hello"); gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER); gtk_window_set_default_size(GTK_WINDOW(window), 200, 300); g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL); login_label = gtk_label_new("Login"); username_label = gtk_label_new("Username: "); password_label = gtk_label_new("Password: "); username_entry = gtk_entry_new(); password_entry = gtk_entry_new(); gtk_entry_set_visibility(GTK_ENTRY(password_entry), FALSE); ok_button = gtk_button_new_with_label("Enter"); g_signal_connect(G_OBJECT(ok_button), "clicked", G_CALLBACK(print_username), ok_button); hbox0 = gtk_hbox_new(TRUE, 5); hbox1 = gtk_hbox_new(TRUE, 5); hbox2 = gtk_hbox_new(TRUE, 5); hbox3 = gtk_hbox_new(TRUE, 5); vbox = gtk_vbox_new(FALSE, 10); gtk_box_pack_start(GTK_BOX(hbox0), login_label, TRUE, FALSE, 5); gtk_box_pack_start(GTK_BOX(hbox1), username_label, TRUE, FALSE, 5); gtk_box_pack_start(GTK_BOX(hbox1), username_entry, TRUE, FALSE, 5); gtk_box_pack_start(GTK_BOX(hbox2), password_label, TRUE, FALSE, 5); gtk_box_pack_start(GTK_BOX(hbox2), password_entry, TRUE, FALSE, 5); gtk_box_pack_start(GTK_BOX(hbox3), ok_button, FALSE, FALSE, 5); gtk_box_pack_start(GTK_BOX(vbox), hbox0, FALSE, FALSE, 5); gtk_box_pack_start(GTK_BOX(vbox), hbox1, FALSE, FALSE, 5); gtk_box_pack_start(GTK_BOX(vbox), hbox2, FALSE, FALSE, 5); gtk_box_pack_start(GTK_BOX(vbox), hbox3, FALSE, FALSE, 5); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); gtk_main();

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  • How do I reference a control in a different thread?

    - by Testifier
    //button is clicked //worker starts private void processWorker_DoWork(object sender, DoWorkEventArgs e) { string code = DoLongWorkAndReturnCode(); if (code != 0) { MessageBox.Show("Error!"); EnableAllButtons(); // this is defined in the other thread and it's where i run into the error. } else { string code = DoAnotherLongProcessAndReturnCode(); if (code != 0) { MessageBox.Show("Error 2!"); EnableAllButtons(); // again, this is defined in the other thread } } } I'm running into a cross threading error because "EnableAllButtons()" is defined in a different thread. How do I go about enabling all buttons in one thread, from a different thread?

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  • What is the reason for this DNSSEC validation failure of dnsviz.net?

    - by grifferz
    On trying to resolve dnsviz.net from a host using an Unbound resolver that is configured to use DNSSEC validation, the result is "no servers could be reached": $ dig -t soa dnsviz.net ; <<>> DiG 9.6-ESV-R4 <<>> -t soa dnsviz.net ;; global options: +cmd ;; connection timed out; no servers could be reached Nothing is logged by Unbound to suggest why this is the case. Here is the /etc/unbound/unbound.conf: server: verbosity: 1 interface: 192.168.0.8 interface: 127.0.0.1 interface: ::0 access-control: 0.0.0.0/0 refuse access-control: ::0/0 refuse access-control: 127.0.0.0/8 allow_snoop access-control: 192.168.0.0/16 allow_snoop chroot: "" auto-trust-anchor-file: "/etc/unbound/root.key" val-log-level: 2 python: remote-control: control-enable: yes If I add: module-config: "iterator" (thus disabling DNSSEC validation) then I am able to resolve this host normally. The domain and its DNSSEC check out fine according to http://dnscheck.iis.se/ so there must be something wrong with my resolver configuration. What is it and how do I go about debugging that?

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  • How to extract file paths out of drag and drop event?

    - by trismarck
    I have this application that lists files in a WindowsForms listbox (NET framework). The application does not support the copy operation if multiple files are selected in the listbox, but at the same time, the application supports 'drag and drop' event for multiple files (allows dragging the files 'out of the application'). How can I extract the paths of the files 'dragged out of the application'? (i.e. I drop the files on some program / script that shows me the paths / saves the paths to a txt file).

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  • Drive security settings in Windows 8 Pro

    - by Donotalo
    My PC OS is Windows 8 Pro x64. Windows 8 seems confusing. D:\ drive is supposed to be used solely by a single user, who is in Users group of the PC. The requirement is... that user will have full control of D drive. Admins will have full control of D drive. All other users can only list drive contents. No file could be opened. My account is admin account. From D drive's property Security tab, I've set the following: Allow "List folder contents" for Authenticated Users group. Allow "Full control" for SYSTEM. Allow "Full control" to specific user, who's supposed to use the drive. Allow "Full control" for Administrators group of the computer. Allow "List folder contents" for Users group. After setting this up, the specific user have full control of D drive. No other user can open any file on D drive. But though my account is an admin account, no file on D drive could be opened from my account! Why is this happening and how files can be opened from my account? Note: All accounts in this PC are local accounts.

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  • MVVM - Master/Detail scenario with Navigation and Blendability

    - by vidalsasoon
    Hi, I'll start off with what I want so it may be simpler to understand: I have a Page (Master.xaml) that has has a listbox of PersonViewModel. When the user selects a PersonViewModel from the listbox, I want to Navigate to a details (Details.xaml) page of the selected PersonViewModel. The details page does some extra heavy lifting that I only want done once the user navigates to the page. (I don't want too much stuff loaded in each PersonViewModel of the master listbox) So how do you guys handle master/detail scenarios with navigation while maintaining "blendability"? I've been turing in circles for the past week. there seems to be no clean solution for something that should be quite common?

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  • Trouble using Loader, can't access properties of loaded swf

    - by anne
    May not have asked question correctly so I’m asking again. I’m using Flash AS3 with code in actions layer. Main movieclip onstage is : design_mc. Within it is a movieclip already in place onstage with an instance name clipart_mc. Now I’m also loading a ListBox to the stage and each time a selection is made from listbox myLoader9 is used to load selected .swf into design_mc.clipArt_mc. Now within each of the .swf files loaded into design_mc.clipArt_mc there is a mc I’d like to color transform called color_mc. So now the listbox is onstage and I make a selection that places heart.swf inside of design_mc.clipArt_mc. I want to access heart.swf so I did this: var child:DisplayObject = myLoader9.content.contentLoaderInfo.content.color_mc; var colorTrans3:ColorTransform = new ColorTransform(); var trans3:Transform = new Transform(child); I still can not get to heart.swf. Can anyone help please? Anne

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  • how can i add a Customcontrol to another Customcontrol

    - by scatman
    i want to create a CustomControl: TextList that extends a listBox. TextList : ListBox on CreateChildControls of the TextList i tried to put the followig code in order to create a textbox for every listBox: protected override void CreateChildControls() { TextBox t = new TextBox(); t.ID ="1"; //just an example this.Controls.Add(t); base.CreateChildControls(); } the textbox is not displayed when i call TextList in aspx. i don't think that this is the right way of doing it. so is there a possible workaround to add a control to another control?

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  • Button click event

    - by Malcolm
    I am binding an object of other class to a silverlight list box itemsource.I want to fire the click event of a button,but I don't want to define command under this class. I have defined other class and have defined command inside it. Now the question is how to bind the command of this class to the command property of that button. There are two classes A and B I am binding the item source of a listbox to A and i have defined a command in B and i need this command to bind with the button present inside the listbox.(ie..listbox-listboxitem-button) Is there any way to bind to a property outside of the current data context?

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  • Convert SelectedObjectCollection to Collection of Specific Type

    - by Jonathan Wood
    I have a WinForms multiselect listbox, and each item in the listbox is of type MyClass. I am also writing a method that needs to take a parameter that is a collection of MyClass. It could be of type MyClass[], List<MyClass>, IList<MyClass>, IEnumerable<MyClass>, etc. Any of those would work fine. Somehow, I need to pass the selected items in the listbox to my method. But how would I convert SelectedObjectCollection to any of the MyClass collection types described above?

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  • How not to include a Thumb in ListBoxItem selection

    - by Elad
    I have a collection of items. I am presenting the items in a WPF ListBox using DataTemplate. Part of the DataTemplate is a Thumb which is used for resizing and visually separating between items. The Thumb.Visibility is binded to a property of the item (for example, the last item doesn’t have a visible Thumb). The problem is that selecting an item in the ListBox selects the Thumb as well, as it is part of the ListBoxItem. The desired behavior is to select only the data without the Thumb. How is it possible to get this behavior? I don’t want to add items by code the ListBox or to handle the visibility of the Thumb manually. Currently I get all this from the DataTemplate.

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  • BasedOn property not working with ListView

    - by bobjink
    When I use the following code it works because I am using a ListBox <UserControl.Resources> <Style BasedOn="{StaticResource {x:Type ListBox}}" TargetType="{x:Type ListBox}"> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter Property="Background" Value="Transparent" /> </Style> </UserControl.Resources> But when I use the following code to a ListView I get an warning/exception <UserControl.Resources> <Style BasedOn="{StaticResource {x:Type ListView}}" TargetType="{x:Type ListView}"> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter Property="Background" Value="Transparent" /> </Style> </UserControl.Resources> "StaticResource reference 'System.Windows.Controls.ListView' was not found." Why and how to solve it? I want the functionality of a ListView.

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  • How to cancel the vertical scroll automaticlly changed

    - by grid-wpf-architect
    Hi I have ListBox with Expander as a ListBoxItem, and i have some checkbox and ComboBox within Expander, I placed the ListBox within the ScrollBar. problem: For example ListBox have 10 ExpanderItem, When i expand any one of the Expander then Vertical Scroll viewer will display. now i scroll the Vertical ScrollBar to below for see all controls placed in the Expander, when i click checkBox or press the ComboBox with in Expander, then vartical ScrollBar automatically move to some position above. How to cancel the vertical scroll automaticlly changed when i click with in the Expander.

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  • How to show string inside string in different color?

    - by Kishore Kumar
    I have one TextBox and One listbox for searching a collection of data. While searching a text inside a Listbox if that matching string found in anywhere in the list it should show in Green color with Bold. eg. I have string collection like "Dependency Property, Custom Property, Normal Property" if i type in the Search Text box "prop" all the Three with "prop" (only the word Prop) should be in Bold and its color should be in green. any idea how it can be done?. Data inside listbox is represented using DataTemplate.

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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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  • Splitting an internet connection between multiple separate subnetworks

    - by pythonian4000
    Problem I have an internet connection that I want to split between four separate networks. My requirements are: I need to be able to monitor the amount of bandwidth and data being used by each network, and notify or control as necessary. The four networks should only be able to connect to the internet, not each other. My parents need to be able to operate it, so it needs a simple, preferably Windows-based GUI. Progress so far Server I have a mini-ITX server with six Gigabit ethernet ports - one for the ethernet internet connection, one for each of the four networks, and one for remote access to the server for administration. Bandwidth control I spent a long time researching solutions here. The majority of the control systems/software I found could control bandwidth usage via QOS, but could not monitor or control the amount of data being used. Eventually I found the SoftPerfect Bandwidth Manager, which has everything I need in terms of monitoring and control - per-interface quota management, usage statistics, a web interface for checking usage, and email notifications when quotas are exceeded. It is also Windows-based and has a simple GUI. Internet sharing This is where I am having issues. I am currently using Windows XP Pro SP2 for the server (yes, I know this is far from ideal, but it's the only spare Windows OS I currently have). I can't use the built-in Internet Connection Sharing for several reasons: The upstream internet router has an IP of 192.168.0.1 which ICS clashes with, and I cannot change the router settings. ICS can only share an internet connection with a single interface, but I have four. I have tried bridging the four network cards, but then the Bandwidth Manager cannot see the four individual interfaces - it only sees the bridge. I have tried setting up Dual DHCP DNS server (and am having issues getting DHCP offers to be received by clients), but that would still require gateway software of some sort, which I have been unable to find. My current attempt is to use OpenVPN, with a server for the internet NIC and a separate client for each of the four networks. My thought is that I could bridge the OpenVPN TAP devices to each NIC, meaning that the Bandwidth Manager would control traffic from the bridge instead of the interface. I have not made much progress here though - I've never used OpenVPN before. Questions Is there a Windows software package that does everything I need? (Unlikely, I know) Is there a Windows software package that will share internet between multiple NICs without bridging? Are either of my about attempts feasible? Would it help to have a newer/server version of Windows? Is there a non-Windows alternative that is easy to use?

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  • Bread-crumb style navigation for Winforms

    - by lazycoder
    Does anybody know of a bread-crumb style navigation for Winforms like the one from DotNetBar. http://www.devcomponents.com/dotnetbar/BreadCrumbHorizontalTreeControl.aspx I really like that control. However I am using a other UI library already and just for this control I do not want a reference to another 4 MB lib. I just need this control. Does anybody if something like this is available as a standalone control?

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