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  • how to get output of a variable as float value

    - by jaskirat
    hi..i m having the follwing problem.. want to get the result in float suppose int a= convert.toint32(textbox1.text); int b= convert.toint32(textbox2.text); float ans= math.sqrt(a*b); label1.text= ans.tostring(); output.. a=7 b=3 ans should be= 4.582 but i get an error cannot implicitly convert type 'double' to 'float'. pls help..how can i get the float ans...

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  • Home Server restore fails cannot find boot device

    - by Tim Heuer
    I am using Windows Home Server to backup my PCs. I recently had a hard drive failure on one of my WHS connected PCs and obtained an identical sized/speed drive for my laptop. I used the latest home server restore CD and did the restore. It said it completed successfully. Upon reboot, it says 'cannot find boot device' and lists all my drives (hard drive, cd, network book) indicating no valid operating system was found. I boot using the Win7 repair disk and while it doesn't see the operating system, it sees the drive and if I go into a command prompt, I can see all my data on the drive. My laptop is Windows 7 64-bit Ultimate. I've tried most everything I can think of. I'm a technical user (software developer) so I'm pretty aware of how things work (or should). I don't feel like I'm missing a simple step here.

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  • memory usage in C# (.NET) app is very high, until I call System.GC.Collect()

    - by Chris Gray
    I've written an app that spins a few threads each of which read several MB of memory. Each thread then connects to the Internet and uploads the data. this occurs thousands of times and each upload takes some time I'm seeing a situation where (verified with windbg/sos and !dumpheap) that the Byte[] are not getting collected automatically, causing 100/150MB of memory to be reported in task manager if I call System.GC.Collect() i'm seeing a huge drop in memory, a drop of over 100MB I dont like calling System.GC.Collect() and my PC has tons of free memory. however if anyone looks at TaskManager they're going to be concerned, thinking my app is leaking horribly. tips?

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  • In registration form adding date dialogbox how can apply validation in system date in dialog ends

    - by narasimha
    hi i am implementing registration form adding date field then click icon to display date dialog window then limit date validation in system date below date only how can implement the validation protected Dialog onCreateDialog(int id) { Calendar c = Calendar.getInstance(); int cyear = c.get(Calendar.YEAR); int cmonth = c.get(Calendar.MONTH); int cday = c.get(Calendar.DAY_OF_MONTH); switch (id) { case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, cyear, cmonth, cday); } return null; } private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { String date_selected = String.valueOf(monthOfYear+1)+" /"+String.valueOf(dayOfMonth)+" /"+String.valueOf(year); EditText birthday=(EditText) findViewById(R.id.EditTextBirthday); birthday.setText(date_selected); } }; public void onClick(View v) { if(v == b1) showDialog(DATE_DIALOG_ID); } } ** showing in system date in below dates only how can implemented some solution in running year to below years are display not incrementing above years this condition are appliying validations how can implemented ?

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  • Shared Variable Among Ruby Processes

    - by Jesse J
    I have a Ruby program that loads up two very large yaml files, so I can get some speed-up by taking advantage of the multiple cores by forking off some processes. I've tried looking, but I'm having trouble figuring how, or even if, I can share variables in different processes. The following code is what I currently have: @proteins = "" @decoyProteins = "" fork do @proteins = YAML.load_file(database) exit end fork do @decoyProteins = YAML.load_file(database) exit end p @proteins["LVDK"] P displays nil though because of the fork. So is it possible to have the forked processes share the variables? And if so, how?

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  • Windows partition and double operation system

    - by metdos
    I bought a notebook, Sony Vaio VPC-EB1M1E and I want to make partition and use both windows-7 and Linux(Ubuntu). Should I make partition from inside windows, or should make partition using recovery discs? There is windows-installer version of Ubuntu, should I use it, or should I install it separately? Thanks.

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  • OptionParser python module - multiple entries of same variable?

    - by jduncan
    I'm writing a little python script to get stats from several servers or a single server, and I'm using OptionParser to parse the command line input. #!/usr/bin/python import sys from optparse import OptionParser ... parser.add_option("-s", "--server", dest="server", metavar="SERVER", type="string", help="server(s) to gather stats [default: localhost]") ... my GOAL is to be able to do something like #test.py -s server1 -s server2 and it would append both of those values within the options.server object in some way so that I could iterate through them, whether they have 1 value or 10. Any thoughts / help is appreciated. Thanks.

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  • Trouble defining a variable in PHP?

    - by Jake
    Alright, so a content page uses this: $tab = "Friends"; $title = "User Profile"; include '(the header file, with nav)'; And the header page has the code: if ($tab == "Friends") { echo '<li id="current">'; } else { echo '<li>'; } The problem is, that the if $tab == Friends condition is never activated, and no other variables are carried from the the content page, to the header page. Does anyone know what I'm doing wrong? Update: Alright, the problem seemed to disappear when I used ../scripts/filename.php, and only occurred when I used a full URL? Any ideas why?

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  • Populating a foreign key table with variable user input

    - by Vincent
    I'm working on a website that will be based on user contributed data, submitted using a regular HTML form. To simplify my question, let's say that there will be two fields in the form: "User Name" and "Country" (this is just an example, not the actual site). There will be two tables in the database : "countries" and "users," with "users.country_id" being a foreign key to the "countries" table (one-to-many). The initial database will be empty. Users from all over the world will submit their names and the countries they live in and eventually the "countries" table will get filled out with all of the country names in the world. Since one country can have several alternative names, input like Chile, Chili, Chilli will generate 3 different records in the countries table, but in fact there is only one country. When I search for records from Chile, Chili and Chilli will not be included. So my question is - what would be the best way to deal with a situation like this, with conditions such that the initial database is empty, no other resources are available and everything is based on user input? How can I organize it in such way that Chile, Chili and Chilli would be treated as one country, with minimum manual interference. What are the best practices when it comes to normalizing user submitted data and is there a scientific term for this? I'm sure this is a common problem. Again, I used country names just to simplify my question, it can be anything that has possible different spellings.

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  • C# System.Diagnostics.Debugger.Debug() stopped working

    - by Andrew Miner
    I'm working on a program which uses the System.Diagnostics.Debugger.Break() method to allow the user to set a breakpoint from the command-line. This has worked fine for many weeks now. However, when I was working on fixing a unit test today, I tried to use the debug switch from the command-line, and it didn't work. Here's what I've tried: I've confirmed that the Debug() method is really being called (by putting a System.Console.WriteLine() after it) I've confirmed that the build is still in Debug I've done a clean build I've restarted Product Studio A quick Google search didn't reveal anything, and the API documentation for .Net doesn't mention anything about this function not performing correctly. So... any ideas?

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  • Best practice way to handle variable content margin?

    - by Aithne
    Ok, so a quick site that I am throwing together for a friend has about 20 static pages. Each one with a small amount of content. the div Container contains, well, the div Content, and the div Content contains, obviously, the content that changes on each page. Now, depending on the length of the content, I want a different margin at the top. The less content, then the larger the margin. Simply an aesthetic choice. For example, if the content almost fills the static sized container, there is less padding, but a 1 line page of content might be 1/3 of the way down the static container. Centering the content in the div wont do, as that creates too large of a margin. Whats the best way to handle this? A new class for each content with a different margin? A new Id, so that it is in its own special div positioned or margined differently? Inline css on each page to override the standard css for div Content? A differnt spacer div inside Container before Content on each page? Some sort of scripting along the lines of margin of Content = (ContainerHeight - ContentHeight) / 3? Whats the acceptable way of doing this? I don't want to get into bad habits.

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  • Azure table storage: maximum variable size ?

    - by Egon
    I will be using the table storage to store a lot of blob names, in a single string, appended to each other using some special character. This string will sky rockets pretty soon. But is there a maximum size to the length of a property for a particular entity ? in my case the string ?

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  • What's the difference between hardware and software interrupt?

    - by robotrobert
    I'm gonna sketch my understanding of both. I've googled around but i'm not sure about my knowledge. Please correct me! Hardware interrupt is generated by the operation system event scheduler to reassign the cpu time for another process. Is this true? Software interrupt can be generated from a running program who wants for example to read a file, and for that we need to reassign the cpu for the appropriate operation system call. Is this true? Is there other kind of software/hardware interrupts?

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  • Binding a null variable in a PreparedStatement

    - by Paul Tomblin
    I swear this used to work, but it's not in this case. I'm trying to match col1, col2 and col3, even if one or more of them is null. I know that in some languages I've had to resort to circumlocutions like ((? is null AND col1 is null) OR col1 = ?). Is that required here? PreparedStatement selStmt = getConn().prepareStatement( "SELECT * " + "FROM tbl1 " + "WHERE col1 = ? AND col2 = ? and col3 = ?"); try { int col = 1; setInt(selStmt, col++, col1); setInt(selStmt, col++, col2); setInt(selStmt, col++, col3); ResultSet rs = selStmt.executeQuery(); try { while (rs.next()) { // process row } } finally { rs.close(); } } finally { selStmt.close(); } // Does the equivalient of stmt.setInt(col, i) but preserves nullness. protected static void setInt(PreparedStatement stmt, int col, Integer i) throws SQLException { if (i == null) stmt.setNull(col, java.sql.Types.INTEGER); else stmt.setInt(col, i); }

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  • nginx serves broken characters (nginx on linux as guest system in vbox)

    - by Andrew123321
    I have nginx 1.2.0-1 on debian 6.0.5. I have file test.css. I fill it with "abcd1234". Open it in browser. Then I change the content to "mnop". I receive "abcd" in response. I have all the files in folder shared between Windows (host) and Debian (guest) using Virtual Box. When I put the file elsewhere the problem does not occur! Any idea what can cause this? Thank you (I've been editing question as I was discovering the problem)

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  • Multiple thunderbird Icons in System Tray(Windows 7) & TaskBar

    - by chobo2
    Is this some new "feature" for thunderbird 8? When I start thunderbird it starts by opening thunderbird. Once it is loading thunderbird it loads another 6 thunderbirds. The windows are called Mozilla Thunderbird Inbox - [email protected] - Mozilla Thuderbird Inbox - [email protected] - Mozilla Thuderbird Inbox - [email protected] - Mozilla Thuderbird Inbox - [email protected] - Mozilla Thuderbird (yes it repeats the same one a few times) Inbox - [email protected] - Mozilla Thuderbird I have 7 email accounts but for whatever reason it only made 3 windows. What happened to the one window? When I minimize to tray I got 4 of thunderbird icons. When closing one of them all of the close. My other windows 7(32 bit not 64 bit) only have one instance.

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  • Outputting variable values in x86?

    - by Airjoe
    Hello All- I'm working on a homework assignment in x86 and it isn't working as I expect (surprise surprise!). I'd like to be able to output values of variables in x86 functions to ensure that the values are what I expect them to be. Is there a simple way to do this, or is it very complex? For what it's worth, the x86 functions are being used by a C file and compiled with gcc, so if that makes it simpler that is how I'm going about it. Thanks for the help.

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  • Multi-variable indexes in postgres

    - by Jackson Davis
    Im looking at an application where I will be doing quite a few SELECTs where I am trying to find column_a = x AND column_b = y. Is the correct to create that index that something like the following? CREATE INDEX index_name ON table (column_a, column_b)

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  • LINQ VB.NET variable not found when looping through grouped query

    - by Ed Sneller
    I'm trying to do the following LINQ grouping, which works in the debugger (the results are populated in the GroupedOrders object. But VS 2008 gives me the following error at design time... Name 'x' is not declared Dim GroupedOrders = (From m In thisConsultant.orders _ Group m By Key = m.commCode Into Group _ Select commCode = Key, orders = Group) For Each x In GroupedOrders Next VS 2008 gives me the following error,

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