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  • HTML: how to create a "save as" button?

    - by user68759
    In your browser, when you want to save an HTML page that you are currently viewing, you normally go to the File menu and click Save As. Can I have a little button at the bottom of an HTML page that does the same thing? So instead of going to the File menu - Save As, I want my user to be able to click the button to save the page on to the disk. There is a solution exists using Javascript as far as I know, but it only works for IE. See here: link text

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  • How to create a fully lazy singleton for generics

    - by Brendan Vogt
    I have the following code implementation of my generic singleton provider: public sealed class Singleton<T> where T : class, new() { Singleton() { } public static T Instance { get { return SingletonCreator.instance; } } class SingletonCreator { static SingletonCreator() { } internal static readonly T instance = new T(); } } This sample was taken from 2 articles and I merged the code to get me what I wanted: http://www.yoda.arachsys.com/csharp/singleton.html and http://www.codeproject.com/Articles/11111/Generic-Singleton-Provider. This is how I tried to use the code above: public class MyClass { public static IMyInterface Initialize() { if (Singleton<IMyInterface>.Instance == null // Error 1 { Singleton<IMyInterface>.Instance = CreateEngineInstance(); // Error 2 Singleton<IMyInterface>.Instance.Initialize(); } return Singleton<IMyInterface>.Instance; } } And the interface: public interface IMyInterface { } The error at Error 1 is: 'MyProject.IMyInterace' must be a non-abstract type with a public parameterless constructor in order to use it as parameter 'T' in the generic type or method 'MyProject.Singleton<T>' The error at Error 2 is: Property or indexer 'MyProject.Singleton<MyProject.IMyInterface>.Instance' cannot be assigned to -- it is read only How can I fix this so that it is in line with the 2 articles mentioned above? Any other ideas or suggestions are appreciated.

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  • asp.net membership create user error

    - by nitroxn
    Hi, I encountered an issue while creating users using the asp.net user membership. The membership provider configuration is as follows- The error generated by ASP.net configuration application is as follows- An error was encountered. Please return to the previous page and try again. The following message may help in diagnosing the problem: Exception has been thrown by the target of an invocation. at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Web.Administration.WebAdminMembershipProvider.CallWebAdminMembershipProviderHelperMethodOutParams(String methodName, Object[] parameters, Type[] paramTypes) at System.Web.Administration.WebAdminMembershipProvider.CreateUser(String username, String password, String email, String passwordQuestion, String passwordAnswer, Boolean isApproved, Object providerUserKey, MembershipCreateStatus& status) at System.Web.UI.WebControls.CreateUserWizard.AttemptCreateUser() at System.Web.UI.WebControls.CreateUserWizard.OnNextButtonClick(WizardNavigationEventArgs e) at System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e) at System.Web.UI.WebControls.CreateUserWizard.OnBubbleEvent(Object source, EventArgs e) at System.Web.UI.WebControls.Wizard.WizardChildTable.OnBubbleEvent(Object source, EventArgs args) at System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) at System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

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  • Using Delphi or FFMpeg to create a movie from image sequence

    - by Hein du Plessis
    Hi all My Delphi app has created a squence called frame_001.png to frame_100.png. I need that to be compiled into a movie clip. I think perhaps the easiest is to call ffmpeg from the command line, according to their documentation: For creating a video from many images: ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi The syntax foo-%03d.jpeg specifies to use a decimal number composed of three digits padded with zeroes to express the sequence number. It is the same syntax supported by the C printf function, but only formats accepting a normal integer are suitable. From: http://ffmpeg.org/ffmpeg-doc.html#SEC5 However my files are (lossless) png format, so I have to convert using imagemagick first. My command line is now: ffmpeg.exe -f image2 -i c:\temp\wentelreader\frame_%05d.jpg -r 12 foo.avi But then I get the error: [image2 @ 0x133a7d0]Could not find codec parameters (Video: mjpeg) c:\temp\wentelreader\Frame_C:\VID2EVA\Tools\Mencoder\wentel.bat5d.jpg: could not find codec parameters What am I doing wrong? Alternatively can this be done easily with Delphi?

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  • Cant create 2nd textbox

    - by okinaw55
    Having problems with this code and cant figure out why. It works fine the first time through but crashes with a Parameter is not Valid error the 2nd time on this line. Dim tbx As TextBox = New Windows.Forms.TextBox Any help is appreciated. Dim tbx As TextBox = New Windows.Forms.TextBox tbx.Name = tbxName tbx.Size = New System.Drawing.Size(55, 12) tbx.BorderStyle = BorderStyle.None tbx.TextAlign = HorizontalAlignment.Center Using f As Font = tbx.Font tbx.Font = New Font(f.FontFamily, 8, FontStyle.Bold) End Using tbx.Location = New System.Drawing.Point(xCords, 44) Select Case tbx.Name Case "tbxBulk01" : tbx.Text = Bulk01Label Case "tbxBulk02" : tbx.Text = Bulk02Label End Select Me.Controls.Add(tbx) Stack trace as follows. at System.Drawing.Font.GetHeight(Graphics graphics) at System.Drawing.Font.GetHeight() at System.Drawing.Font.get_Height() at System.Windows.Forms.Control.get_FontHeight() at System.Windows.Forms.TextBoxBase.get_PreferredHeight() at System.Windows.Forms.TextBoxBase.get_DefaultSize() at System.Windows.Forms.Control..ctor(Boolean autoInstallSyncContext) at System.Windows.Forms.TextBoxBase..ctor() at System.Windows.Forms.TextBox..ctor()

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  • Best way to create preview functionality in Rails

    - by slythic
    Hi all, I'm looking to implement preview functionality in my posts scaffold. All I need to do is allow a user to enter information in the new view (/posts/new) and then replace the submit button with a preview button. Once the preview button is clicked, the user is routed to the preview page (probably /posts/new/preview). If the user wants to make a change they would click 'go back' or if they are happy with the post they can then submit the post. I found this article (http://eyedeal.team88.org/node/105) but it seems dated. Any ideas on what the best approach for this would be? Many thanks, Tony

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  • Can't set text label in table view in Xcode for the iPhone

    - by Dave
    I have this code: tableList = [[NSMutableArray alloc] initWithObjects:@"First View",@"Second View",nil]; I have synthesized it and set the property, the problem is when I add this line under the configure the cell comment to set the text of each row, the app opens in the simulator but instantly closes: // Configure the cell. cell.textLabel.text = [tableList objectAtIndex:indexPath.row]; return cell; Any ideas on what is causing this ?

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  • How can I create personalized menus in WPF?

    - by Erik Vullings
    I'm working on an XmlEditor (similar to XmlNotepad, but using WPF) in which I want to implement personalized menus. I.e. only show the most popular MenuItems on first open, and show all MenuItems when the user explicitly asks for it, either by clicking on the double arrow at the bottom or waiting for a certain amount of time. I'm specifically looking for feedback on how I should approach this problem: any thoughts are appreciated!

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  • Easiest way to create drop down with database generated options

    - by aarontb
    I'm trying to build a multi-level "game". A randomly generated option (Option1) will trigger other options in a drop down (Option2)...the options in the new drop down will be directly related the to Option1. Option2 will then trigger another drop down with info directly related to Option2 and so forth until reaching OptionEnd...any suggestions, preferably SQL and PHP. Thanks...yeah, I'm a n00b.

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  • iPhone Core Data does not refresh table

    - by Brian515
    Hi all, I'm trying to write an application with Core Data, and I have been able to successfully read and write to the core data database. However, if I write to the database in one view controller, my other view controllers will not see the change until the app is closed then reopened again. This is really frustrating. I'm not entirely sure how to get the refresh - (void)refreshObject:(NSManagedObject *)object mergeChanges:(BOOL)flag method to work. How do I get a reference to my managed object? Anyways, here's the code I'm using to read the data back. This is in the viewDidLoad method. NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Website" inManagedObjectContext:managedObjectContext]; [request setEntity:entity]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"siteName" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; [sortDescriptor release]; [sortDescriptors release]; NSError *error = nil; NSMutableArray *mutableFetchResults = [[managedObjectContext executeFetchRequest:request error:&error] mutableCopy]; if(mutableFetchResults == nil) { //Handle the error } [self setNewsTitlesArray:mutableFetchResults]; [mutableFetchResults release]; [request release]; [newsSourcesTableView reloadData]; Thanks for help in advance!

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  • git create branch with untracked files

    - by Surya
    I've a master branch with a .gitignore file with directory X listed in it. (X is not being tracked). When I try to add a branch tracking a remote using the command git checkout -b mybranch origin/mybranch The remote branch is tracking X directory, and hence this checkout fails with the error Untracked working tree file 'X' would be overwritten by merge. what is the way out ? Surya

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  • JPA Secondary Table Issue

    - by Smithers
    I have a three tables: User, Course, and Test. Course has a User foreign key and Test has a Course foreign key. I am having trouble mapping the Test collection for each User since I need an intermediary step from User - Course - Test. I am trying to use a SecondaryTable since the User key for the Test is its associated Course row. Am I on the right track using SecondaryTable or is there a way to use a JoinTable without the inverseJoinColumn?

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  • Create Personalized Controls For Java ME

    - by Nathan Campos
    I'm starting to develop a eBook reader for mobile using Java ME, but for the control were the book will be shown I need a personalized control. For this I need to first know how to do one, to workaround with my needs. Then I need to know how can I do a personalized control as we do with Visual Basic. PS: I want to do a personalized TextBox, that in some parts can be in bold, italic, sublined, that supports topics(as the Edit, the MS-DOS Text Editor) and many other things that make a eBook better viewed than a simple plain text

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  • How do I create regex groups for replacement?

    - by resting
    I have this sample string: Image: SGD$45.32 SKU: 3f3f3 dfdfd grg4t BP 6yhf Pack Size: 1000's Color: Green Price: SGD$45.32 SGD$45... I would like to remove all the prices namely: SGD$45.32 Price: SGD$45.32 SGD$45 I have this expression thats supposed to match the 3 groups: $pattern = '/(Price.+\sSGD\$\d+\.\d{2})(SGD\$\d+\.\d{2})(SGD\$\d+)/'; $new_snippet = preg_replace($pattern, '', $snippet);` But apparently its not working. It works if I replace a single group at a time. But, I'd like to know if it possible to replace all possible matching groups with a single statement. Tried preg_match_all($pattern, $snippet, $matches); to show matches based on the above pattern, but no matches are found if I put all 3 groups together.

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  • Android: Create TextView that flashes when clicked

    - by Jeremy
    How do I set up a TextView to flash when it is clicked? I essentially want one of the objects that is displayed in a ListActivity, but inside a normal View. I have tried to do this by adding an OnClickListener, but what I really need is something like adding an On(Un)SelectListener. Using the onClickListener, I can change the TextView background, but obviously the background stays that color. I thought of using a new Handler().postDelayed(new Runnable(){ ... }) kind of thing to reset the backround after some small time, but I did not know if this would be overkill for what I'm trying to do. What would you recommend?

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  • regsvr32 failed to create an entry under clsid

    - by user1677272
    I have a VC++ dll, which I want to register on my 32-bit Windows 7 machine using regsvr32.exe, however I have some problems with this. When I register my DLL with regsvr32.exe, it shows registration successful, but when I check the entries in regedit, there is no entry in Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID. There is only one entry in Computer\HKEY_LOCAL_MACHINE\TypeLib with the guid mentioned in the project. Can anyone help me on this?

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  • Campaignresponse entity create in plugin

    - by engcmreng
    I wrote plugin that fire on phonecall step is setstatedynamic. I register post image in step my plugin.I get phonecall entity from postimage. And When i set phonecallid to origanitingactivityid on campaign response ( like campaignResponse.OriginatingActivityId = new EntityReference(); campaignResponse.OriginatingActivityId.LogicalName = PhoneCall.EntityLogicalName; campaignResponse.OriginatingActivityId.Id = phoneCall.ActivityId.Value; ) Plugin throws timeout.(I set serviceproxy,Timeout property 30 minutes,its still throw timeout.) When i dont set originatingactivityid,campaingresponse is created. Any suggestion about this problem.

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  • Sort by values from hash table - Ruby

    - by Adnan
    Hello, I have the following hash of countries; COUNTRIES = { 'Albania' => 'AL', 'Austria' => 'AT', 'Belgium' => 'BE', 'Bulgaria' => 'BG', ..... } Now when I output the hash the values are not ordered alphabetically AL, AT, BE, BG ....but rather in a nonsense order (at least for me) How can I output the hash having the values ordered alphabetically?

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  • Sorting Table Cells based on data from NSArray

    - by Graeme
    Hi, I have an NSArray which contains information from an RSS feed on dogs, such as [dog types], [dog age] and [dog size]. At the moment my UITableView simply displays each cell on each dog and within the cell lists [dog types], [dog age] and [dog size]. I want to be able to allow users of my app to "sort" this data based on the dog name, dog size or dog age when they press a UIButton in the top nav-bar. I'm struggling to work out how to filter the UITableView based on these factors, so any help is appreciated. Thanks.

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