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• Migrate style from TabItem to TabHeader

  - by OffApps Cory

  Good day! I have a TabControl with TabItems that have been customized via a control template. This control template specifies a trigger whereby on mouseover, the content of tab header grows slightly. <ControlTemplate> <Storyboard x:Key="TabHeaderGrow"> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="TabName" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"> <SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1.1"/> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="TabName" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00.1000000" Value="1.1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> <ControlTemplate.Triggers> <EventTrigger RoutedEvent="Mouse.MouseEnter"> <BeginStoryboard Storyboard="{StaticResource TabHeaderGrow}"/> </EventTrigger> When I mouseover any of the tabs they work as expected, however the trigger also fires when I mouseover any of the elements in the tab body. I know that I need to migrate the control styling to a tabHeader controlTemplate, but I am unsure how to do that. I can't seem to do template binding for the content of the tabheader. Any help would be appreciated.

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• Constraining to parent container with MouseDragElementBehavior

  - by anonymous

  Hi all, I just had a question regarding constraining a control's drag and drop movement to its parent canvas. I tried using the ConstrainToParentBounds property on the MouseDragElementBehavior, however, when this is used the drag must be done really slowly or the movement of the control is choppy or stops altogether. So I am attempting to implement my own boundary constraints. I seem to be running into difficulty though. I am still using the MouseDragElementBehavior but am attempting to supplement it by also handling mouseleftbuttondown, mousemove, mouseleftbuttonup events. I know that these are working (haven't been overridden by the MouseDragElementBehavior) as I have tested them using other methods. I will post my current code below: private void Control_MouseMove(object sender, MouseEventArgs e) { MyControl mc = (MyControl)sender; Canvas canvas = (Canvas)mc.parent; GeneralTransform ct = canvas.TransformToVisual(Application.Current.RootVisual as UIElement; Point canvas_offset = ct.Transform(new Point(0,0)); double canvasTop = canvas_offset.Y; double canvasLeft = canvas_offset.X; GeneralTransform gt = mc.TransformToVisual(Application.Current.RootVisual as UIElement); Point offset = gt.Transform(new Point(0,0)); double controlTop = offset.Y; double controlLeft = offset.X; if(isMouseCaptured) { if(controlTop < canvasTop) { mc.Opacity = 1; //to test if conditions are being met, seems to indicate ok mc.setValue(Canvas.TopProperty, canvasTop); } if(controlLeft < canvasLeft) { mc.Opacity = 1; mc.setValue(Canvas.TopProperty, canvasTop); } } } This is what my code looks like at the moment (I realize there is nothing there for right/bottom). I've tried a bunch of different things at this point and none of them seem to give the desired result; the control's movement is still not constrained to the canvas. Any help/pointers would be greatly appreciated. Thanks!

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• Unable to delete all partitions on flash drive using Windows 7 OS??

  - by irrational John

  Recently I purchased an ADATA C802 8GB flash drive. Since the drive was new I decided to run some of the HD Tune Pro (v4.50) performance tests on it, mostly just for the heck of it. To avoid accidently destroying data HD Tune refuses to write to a drive unless there are no partitions on the drive. If you do attempt to write to a drive with partitions, it posts the message "Writing is disabled. To enable writing please remove all partitions." As you would expect, the ADATA came formatted with a single primary FAT32 partition in the Master Boot Record. But a number of unexpected things happened when I attempted to delete that partition. The first thing I tried was to use the Windows 7 (64-bit) Disk Management tool (diskmgmt.msc) to delete the partition. It would not let me. The context menu choice to delete that volume was not available. Next I opened up a command prompt window with Admin authority and ran diskpart. Diskpart deleted the volume for me. However, when I attempted to run an HD Tune write test on the drive I still got the "Writing is disabled" message. Huh??? So I fired up a utility I have which allows viewing drives at the sector level and verified that the partition table in the Master Boot Record was empty. No partitions. Yet HD Tune still thought there were partitions on the drive? So why was I still getting the "Writing is disabled" message from HD Tune Pro? And why wouldn't the Windows 7 Disk Management tool let me change the partitions on this drive. After doing the above, I plugged the ADATA into my MacBook. I was then able to format it as either a GPT or MBR partitioned drive with no problems. I am not looking for suggestions on how to format this drive. I can do that. What I do not understand and was hoping I might get insight into is why this drive behaves so strangely under Windows 7? And BTW, what's up with HD Tune Pro? BTW, if I plug the drive I formatted on my MacBook back into my Windows 7 64-bit system I still run into road blocks with the Disk Management tool. For example, I cannot delete all the GPT partitions on the ADATA so I can convert it into an MBR drive. I following Microsoft's instructions, the instructions just do not work with this ADATA flash drive. Anyone know what's up with this? It makes no sense to me. Has something changed in Windows 7 (Vista)??

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• Windows theme affecting ListView header

  - by LihO

  I've created new Windows Forms Application (C#) with one simple form containing ListView. Then I changed the View Property to Details and increased the size of the font used in this ListView and here's the result: This is how it looks on Windows XP with Windows Classic theme: and here's the result with Windows XP theme: Creating the same Windows Forms Application in Visual C++ instead of C# yields same result. EDIT : Thanks to Kamil Lach, we already know that Visual Styles is what makes the appearance of ListView change. This can be avoided either by removing Application.EnableVisualStyles() call or by changing the Application.VisualStyleState. Both of these solutions yield the following result: This looks fine, but this change affects the appearance of other controls which is not good. I'd like my ListView to be the only control that is not affected by Visual Styles. I've also found similar questions that try to deal with it: Can you turn off visual styles/theming for just a single windows control? How do I disable visual styles for just one control, and not its children? Unfortunately, none of mentioned solutions works. Any C# solution that would make the ListView header have the correct height would be appreciated.

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• EBS with RAID0 (striping) and restoring snapshots

  - by grourk

  We have a MySQL database on EC2 and are looking at the disk IO performance there. Currently we have a single EBS volume with XFS and take snapshots for backup. It seems that a lot of people have seen significant performance gains by striping across multiple EBS volumes with software RAID. If this is done, how does one take snapshots and ensure the consistency of the file system? It seems to me that restoring the file system from multiple snapshots could be tricky.

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• IE 8 issue where window.close() is not occuring after winword.exe is fired to print a document

  - by Dave

  In my web application, a popup page is called using window.open javascript. There is a Print button on the page that has an onclick event that calls a printchecks() function. The code in the printchecks() function is function printchecks(){ window.print(); window.close(); } Issue is that the window.print brings up the printer dialog fine and then you select a printer. The page is actually then printed and is a reference to an rtf document that opens in winword.exe behind the scenes. For some reason in IE 8, the window.close() does not occur. This worked in IE 7. In both cases, WINWORD.EXE process appears to run in the background after the page is printed but in the case of IE 8, control is not give back to that popup page until the WINWORD.EXE process dies which takes a minute or so. I am thinking that becasue control is not being sent back to the page in IE 8, the page is not closed automatically. You can close the page after control is given back after the minute or so. This does happen in IE on both Windows XP and Windows 7. Any ideas if there is a setting in IE 8 or some other reason this may be occuring?

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• Ubuntu Software RAID 0 on AWS Does Not Survive Reboot

  - by Eric J.

  I'm experimenting with creating a software RAID 0 device from 4 EBS volumes on Ubuntu 9.10 running at Amazon AWS following this guide: http://alestic.com/2009/06/ec2-ebs-raid The device appears (and according to SysBench is 3.5x faster than a regular attached EBS volume). Problem is, when I reboot the instance, all files on the RAID device are gone. The device is available and mounted where expected, but contains no files. I am able to write new files to it, which survive until the next reboot.

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• Make `mount` choose a device

  - by o_O Tync

  I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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• How do I get a ComboBox SelectionChanged event to fire from a nested ListBoxItem?

  - by Stephen McCusker

  This is a rather complex problem that has me really confused right now. Any help would be greatly appreciated. The Setup: ListBox of Type A UserControls -ListBoxItem of Type A UserControl --ListBox of Type B UserControls ---ListBoxItem of Type B UserControl ----ListBox of Type C UserControls -----ListBoxItem of Type C UserControl (contains the ComboBox) In other words, the Type A control has a ListBox of Type B controls that has a ListBox of Type C controls. All of the controls are hierarchical in nature. Type A contains the data that's needed to load the Type B controls and the Type B contains the data that's needed to load the Type C controls. The Type C control has a standard ComboBox in it for changing the values of the present items. In addition to the above structure, I have drag and dropping tied to the PreviewMouseLeftButtonDown event on both the Type A and Type B UserControl levels to handle reordering/deleting/etc commands in the GUI. All of this is working as intended. The Problem: When I attempt to change the value in the ComboBox, the SelectionChanged event never fires on the Type C "level" unless I'm careful enough to click on the borders/spacing in between any Type A or B controls. This happens when my ComboBox popout menu overlaps on either a Type A or B control located below itself. The selection events for Type A or B are firing instead of the Type C events, so the ComboBox is never changing its value reliably. In the debugger, the code for handling the drag and drop is triggering on the next ListBoxItem that's located underneath the ComboBox. Thoughts: Is there a way I can make my ComboBox popup take prevalence over the items behind it while double-nested in a ListBox (ie, ignore anything behind it while it's open)? Is there some way to reroute the incorrectly firing SelectionChanged events down to the ComboBox that's supposed to be triggering them?

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• TFS: Choose which Team Project to add a solution too.

  - by Patricker

  I have a solution which I developed in VS2008 and which I am trying to add to Source Control (TFS 2010, though the issue happened in TFS 2008 as well). I have several TFS workspaces on my computer and I have access to several Team Projects. When I right click the solution in my Solution Explorer and choose the "Add Solution to Source Control" option I am never given an option of choosing which Workspace or which Team Project to add the existing solution too. VS2008 then proceeds to add it to the same team project every time. I have tried selecting an alternate workspace/team project in every window where I can see an option for it but it always adds it back to the same one. I even tried changing the name of my new workspace so that alphabetically it was the first thinking that it might be somehow related to that... no luck. I then tried goign to the Change Source Control window where you can add/remove bindings on a solution/project but that window also defaults to the same Team Project as trying to add the solution directly does... Any help would be greatly appreciated with this, maybe I'm just missing something?

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• C# ASP.NET Binding Controls via Generic Method

  - by OverTech

  I have a few web applications that I maintain and I find myself very often writing the same block of code over and over again to bind a GridView to a data source. I'm trying to create a Generic method to handle data binding but I'm having trouble getting it to work with Repeaters and DataLists. Here is the Generic method I have so far: public void BindControl<T>(T control, SqlCommand sql) where T : System.Web.UI.WebControls.BaseDataBoundControl { cmd = sql; cn.Open(); SqlDataReader dr = cmd.ExecuteReader(); if (dr.HasRows) { control.DataSource = dr; control.DataBind(); } dr.Close(); cn.Close(); } That way I can just define my CommandText then make a call to "BindControls(myGridView, cmd)" instead of retyping this same basic block of code every time I need to bind a grid. The problem is, this doesn't work with Repeaters or DataLists. Each of these controls inherit their respective "DataSource" and "DataBind" methods from different classes. Someone on another forum suggested that I implement an interface, but I'm not sure how to make that work either. The GridView, Datalist and Repeater get their respective "DataBind" methods from BaseDataBoundControl, BaseDataList, and Repeater classes. How would I go about creating a single interface to tie them all together? Or am I better off just using 3 overloads for this method? Dave

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• It's possible to show different content on notebook lcd an vga output connector?

  - by Santiago

  I want to do a program that on notebook LCD show a controller of what we see on VGA output connector, it is possible to do that? For instance, on LCD you can see a remote control (play, stop, volume) an on VGA you see the film without controls.

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• Upgrade OEM Windows 7 Pro to Windows 7 Enterprise

  - by user17111

  Our hardware vendor has sold us a laptop that comes with Windows 7 Pro OEM. Since we want Windows 7 Enterprise (for features like DirectAccess and BitLocker), the vendor has supplied us with a Software Assurance only license to upgrade OEM Win 7 Pro to Win 7 Ent. Do I need to install Windows 7 Enterprise Volume License media and re-install Windows, or is there a process to turn this existing Windows 7 Pro install into an "Enterprise" ?

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• Considerations for spanned volumes with SAN's LUN.

  - by Patrick Pellegrino

  I want to know, before going forward, what I can expected in lost of performance (or not) of creating Windows spanned volumes from LUN delivered by a SAN ? I don't know which kind of SAN is (we don't administer it), but they give us 10 300 Gb LUN to our Windows 2k8 R2 (Vmware) and we need larger volume so we think to spanned some disk but we are aware of the performance issue. Any input ? Regards.

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• WM_NOTIFY and superclass chaining issue in Win32

  - by DasMonkeyman

  For reference I'm using the window superclass method outlined in this article. The specific issue occurs if I want to handle WM_NOTIFY messages (i.e. for custom drawing) from the base control in the superclass I either need to reflect them back from the parent window or set my own window as the parent (passed inside CREATESTRUCT for WM_(NC)CREATE to the base class). This method works fine if I have a single superclass. If I superclass my superclass then I run into a problem. Now 3 WindowProcs are operating in the same HWND, and when I reflect WM_NOTIFY messages (or have them sent to myself from the parent trick above) they always go to the outermost (most derived) WindowProc. I have no way to tell if they're messages intended for the inner superclass (base messages are supposed to go to the first superclass) or messages intended for the outer superclass (messages from the inner superclass are intended for the outer superclass). These messages are indistinguishable because they all come from the same HWND with the same control ID. Is there any way to resolve this without creating a new window to encapsulate each level of inheritance? Sorry about the wall of text. It's a difficult concept to explain. Here's a diagram. single superclass: SuperA::WindowProc() - Base::WindowProc()---\ ^--------WM_NOTIFY(Base)--------/ superclass of a superclass: SuperB::WindowProc() - SuperA::WindowProc() - Base::WindowProc()---\ ^--------WM_NOTIFY(Base)--------+-----------------------/ ^--------WM_NOTIFY(A)-----------/ The WM_NOTIFY messages in the second case all come from the same HWND and control ID, so I cannot distinguish between the messages intended for SuperA (from Base) and messages intended for SuperB (from SuperA). Any ideas?

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• Increasing loudness while using VLC-Player to copy videos

  - by Christian

  I film via a videocamera with has a microphone that unfortunatly often not loud enough. That camera stores the videos on mini DVD and at the moment I copy the videos from the camera to my computer via a batch file. Is there a command in VLC-Player that allows me to double the volume of the file that gets created?

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• Function keys require Fn modifer. How can I make them default?

  - by RickMeasham

  On my Dell Studio 15, the function keys, by default, do things like switch the radio on/off or change the brightness or sound. To use them as function keys I have to hold down the Fn modifier. I use function keys as function keys a lot more often than I want to change the volume or brightness. Am I missing an obvious setting somewhere in the control panel (Vista Uber Extreme Something)?

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• COnditional mount in LInux

  - by o_O Tync

  I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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• Jquery .Show() .Hide() not working as expected

  - by fizgig07

  I'm trying to use the show and hide to display a different set of select options when a certain report type is selected. I have a couple problems with this: The .show .hide only execute properly if I pass params, slow fast, in the the first result of my conditional statement. If I take out the params or pass params in both results, only one select shows and it never changes.. here's is the code that currently kind of works. if ($('#ReportType').val() == 'PbuseExport') { $('#PbuseServices').show('fast'); $('#ReportServiceDropdown').hide('fast'); } else { $('#PbuseServices').hide(); $('#ReportServiceDropdown').show(); } After i've used this control I am taken to a differnt page. When I use the control again, it reatins the original search values and repopulates the control. Then again I only want to show one select option if a certain report is chosen.. This works correctly if the report type I originally searched on is not the "PbuseExport". If I searched on the report type "PbuseExport", then both selects show on the screen, and only until I change the report type does it show only one select. I know this probably isn't very clear.. Here is the code that handles the change event on the report type drop down. var serviceValue = $("#ReportType").val(); switch (serviceValue) { case 'PbuseExport': $('#PbuseServices').show('fast'); $('#ReportServiceDropdown').hide('fast'); default: $('#PbuseServices').hide(); $('#ReportServiceDropdown').show(); break; }

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• Question about Client IDs

  - by George

  I have a user control that is emmitting javascript using the ClientId function. For example: Out &= "ValidatorHookupControlID(" & Quote & ddlMonth.ClientID & Quote & "), document.all(" & Quote & CustomValidator1.ClientID & Quote & "));" & vbCrLf It appears to me that the ClientID function DOES not return the ultimate ID that is sent to the browser. Instead, the ClientID function only appears to be aware of its current parent control, which in this case is a the User Control and so the ID that is returned is the ID "dtmPassportExpirationDate_ddlMonth" When in fact the usercontrol is included in a master page and the ultimate ID that is used is: "ctl00_phPageContent_dtmPassportExpirationDate_ddlMonth" I may be nuts, but that's what it appears to be doing. I expect that the ClientID function would return the ultimate ID used in the HTML. Am I missing something?

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• Bacula backup process always blocks the restore

  - by georgehu

  Every day we have a long running catalog backup process, and I found there is no way to restore a file during the backup. So, Bacula is designed to block the restore while back is running? I'm using a disk backup, I couldn't understand why I can't restore file from early written volumes as the back process is not supposed to writing on the same volume file.

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• Overlapping 2 Flash objects and controlling z-index

  - by Magnus Smith

  I have two Flash objects on a webpage (call them A and B), and they overlap so one partially obscures the other. I don't seem to have any control over the z-index, to force B in front of A. Whatever I try, A always 'wins' and stays on the top! I have read many people's posts about problem with getting HTML to show over the top of Flash...but nothing about when your two overlapping items are both Flash objects. I have tried various combinations of wmode=opaque/transparent/window I have tried CSS position:absolute/relative and z-index:0/999 I have tried placing the HTML sections in a different order The problem is the same in IE6 and Firefox 2.0 I do not want to use jQuery in this case In my particular situation B must have position:absolute and wmode=transparent, and sit above A. A needs relative positioning and transparency is not required. However, I have been testing without these restrictions, and I still have no control over the overlap. Are some SWFs (ours are adverts sent by clients) created in such a way as to override any code control of z-index? Thanks for any advice you can give.

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• Show NSSegmentedControl menu when segment clicked, despite having set action

  - by Justin Williams

  I have an NSSegmentedControl on my UI with 4 buttons. The control is connected to a method that will call different methods depending on which segment is clicked: - (IBAction)performActionFromClick:(id)sender { NSInteger selectedSegment = [sender selectedSegment]; NSInteger clickedSegmentTag = [[sender cell] tagForSegment:selectedSegment]; switch (clickedSegmentTag) { case 0: [self showNewEventWindow:nil]; break; case 1: [self showNewTaskWindow:nil]; break; case 2: [self toggleTaskSplitView:nil]; break; case 3: [self showGearMenu]; break; } } Segment 4 has has a menu attached to it in the awakeFromNib method. I'd like this menu to drop down when the user clicks the segment. At this point, it only will drop if the user clicks & holds down on the menu. From my research online this is because of the connected action. I'm presently working around it by using some code to get the origin point of the segment control and popping up the context menu using NSMenu's popUpContextMenu:withEvent:forView but this is pretty hacktastic and looks bad compared to the standard behavior of having the menu drop down below the segmented control cell. Is there a way I can have the menu drop down as it should after a single click rather than doing the hacky context menu thing?

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• How to retrieve checkboxlist values in the controller in asp.net mvc

  - by sukumar

  I am having a form in a view page that looks as below: <form runat="server" id="dcrsubmit"> <asp:CheckBoxList ID="CheckBoxList1" runat="server"> <asp:ListItem>test1</asp:ListItem> <asp:ListItem>test2</asp:ListItem> <asp:ListItem>test3</asp:ListItem> <asp:ListItem>test4</asp:ListItem> <asp:ListItem>test5</asp:ListItem> <asp:ListItem>test6</asp:ListItem> </asp:CheckBoxList> ....other controls </form> Now when the form is posted, I am trying to retrieve the values submitted in the controller as below: [AcceptVerbs(HttpVerbs.Post)] public ActionResult testmethod(FormCollection formValues) { string s = formvalues.get("CheckBoxList1"); . . /* other code */ . } The string value shows null when I submit the form by checking some checkboxes. Is this the way to retrieve the values or am I doing something wrong? And I cannot use html control because all other controls on the form are server controls and I am not sure if I can only make this control a html control. And I am not sure how can I bind the values to it?

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• Gnome Panel Hardships -- Need to get my utilities back!

  - by Josiah Kiehl

  So I removed the cool new social utility on my gnome panel with the intention of readding it to the bar somewhere else.... only to find out that it was not listed on my "add to panel" box. How do I get it back? Same goes for my volume slider.

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