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  • Authoritative Excel range syntax reference

    - by olefevre
    Sorry if this has been asked before but I can't find it. I am looking for an authoritative description of all valid strings that can be used as a reference, e.g., "A1:C5", "$A:$A", $A2" etc etc. That seems a pretty basic thing yet I've wasted hours trying to locate it. All I can find is a swamp of "helpful" examples but no reference.

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  • Ruby on rails form validation issue

    - by Anooj
    Am pretty new to ROR. Need help in Rails form validation. Hey, am using rails 2.3.5 I have a basic validates_presence_of for the fields in the form. Now when i don't enter field details, i do get an error, but the error is displayed as: {{count}} errors prohibited this {{model}} from being saved There were problems with the following fields: {{attribute}} {{message}} {{attribute}} {{message}} Any help will be highly appreciated.

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  • How do I use PORT ftp raw command in c#?

    - by terrani
    Hi, I am trying to make a FTP client in c#. I found a class that support basic FTP commands on http://msdn.microsoft.com/en-us/library/system.net.webrequestmethods.ftp_members.aspx. on the list, PORT command is missing. How do I use PORT command in c#?

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  • Django Find Out if User is Authenticated in Custom Tag

    - by greggory.hz
    I'm trying to create a custom tag. Inside this custom tag, I want to be able to have some logic that checks if the user is logged in, and then have the tag rendered accordingly. This is what I have: def user_actions(context): request = template.Variable('request').resolve(context) return { 'auth': request['user'].is_athenticated() } register.inclusion_tag('layout_elements/user_actions.html', takes_context=True)(user_actions) When I run this, I get this error: Caught VariableDoesNotExist while rendering: Failed lookup for key [request] in u'[{}]' The view that renders this ends like this: return render_to_response('start/home.html', {}, context_instance=RequestContext(request)) Why doesn't the tag get a RequestContext object instead of the Context object? How can I get the tag to receive the RequestContext instead of the Context? EDIT: Whether or not it's possible to get a RequestContext inside a custom tag, I'd still be interested to know the "correct" or best way to determine a user's authentication state from within the custom tag. If that's not possible, then perhaps that kind of logic belongs elsewhere? Where?

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  • jquery onclick for expanding text content on the right?

    - by Jon Snow
    Hi I am trying to achieve the same effect as it is on hover on my fiddle, I would like to use jquery click/toggle to expand the content instead of seeing it on hover I am trying the basic addClass with jquery/css but somehow it's breaking off and cannot figure it out how to work properly Would appreciate any help or advice on the following, thanks a lot in advance, here is the fiddle i created with the jquery I am using $(document).ready(function(){ $(".gamewrapper").click(function(){ $(".gamewrapper").addClass("expand"); }); }); Thanks

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  • Size of an Array

    - by Florent
    Hi all ! I'm new in objective C and iphone and it's hard from me. How do you get the size of an NSarray ? ? ? and print it in the console using NSLog ? thanks now it's basic but hard for me.

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  • Please summarize how to implement node base licensing

    - by user294896
    Currently a user makes a purchase and then a license is generated and sent to that user, but the license isn't tied to a physical computer so there is nothing to prevent the user sharing the license with someone. I heard people talk about creating a license tied to the mac address of the computer, so the license only works on that computer. Now I know how to get the mac address in code but I dont understand how I can do this step when they first make the purchase on the web, so please what is the basic algorithm for node locked licenses ?

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  • How to creating code highlighted blocks on your website

    - by Saif Bechan
    I have written a small PHP framework and I want to make a website where I explain some basic features. I want to display blocks of php code. Is there an easy to do this, preferably without JavaScript. I want to have section kind of like displayed below: // This function takes in a value and return it public function getname($name){ return $name; }

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  • grails mail connection refused

    - by mkoryak
    it seems i have tried the mail config in the way that its docs said, but still i get: Error 500: Executing action [x] of controller [x] caused exception: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP I am using google apps for my email so [email protected] is using gmail. i cannot get grails to send out a test message on my dev box (win 7). my config is: host = "smtp.gmail.com" port = 465 username = "[email protected]" password = "x" props = ["mail.smtp.auth":"true", "mail.smtp.debug":"true", "mail.smtp.starttls.enable":"true", "mail.smtp.socketFactory.port":"465", "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory", "mail.smtp.socketFactory.fallback":"false"]

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  • Does Google app engine supports JDBC?

    - by Rakesh Juyal
    I have heard the Google App Engine[java] do not support JDBC and Hibernate. Is it true? If yes then how do we access the database in Google App Engine. Also, is there any [basic] sample application which can help me understand how to perform CRUD operations in GAE.

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  • Changing gmail Settings with Ruby

    - by Technocrat
    I need to configure my gmail account(s) programmatically with Ruby. I checked out the apps api and it looks like the simplest possible solution would be to use ClientLogin for logging in and a simple XML PUT for changing the forwarding setting, for example. I wrote a little test script like so: http://gist.github.com/373457 It would appear that the call to ClientLogin works because it comes back with an Auth= token. When it sends the PUT request to google, however, it comes back with a RestClient::Unauthorized exception. I rewrote the script with pure net/https and it turns out the message I'm getting is invalid token, yet I can't figure out what is wrong with my token. Can anyone else see it?

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  • iPhone SDK development obj-C vs interface builder

    - by Amy
    I'm new to the iOS platform. I'm not clear on the purpose of the interface builder. It looks like I can avoid using it entirely and just write all the code in objective c. am I right? is there anything that IB can do but obj-c cannot? It reminds me of visual basic 6.

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  • C# Retrieve Canon Specific EXIF Data

    - by dkpatt
    I have wrote an app that reads the basic EXIF data from an image via the PropertyItems exposed in .Net's System.Drawing.Image class. However, I cannot retrieve Canon specific EXIF data via these properties. How does one read this information? I know it exist in the file as Photoshop reads it.

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  • Custom Control for Line

    - by Hamid
    I want to design a custom Control for Line (vertical or horizontal line) basic usercontrol is rectangle and not suitable for line what s your idea about line control?

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  • inheritance from the django user model results in error when changing password

    - by Jerome
    I inherited form the django user model like so: from django.db import models from django.contrib.auth.models import User, UserManager from django.utils.translation import ugettext_lazy as _ class NewUserModel(User): custom_field_1 = models.CharField(_('custom field 1'), max_length=250, null=True, blank=True) custom_field_2 = models.CharField(_('custom field 2'), max_length=250, null=True, blank=True) objects = UserManager() When i go to the admin and add an entry into this model, it saves fine, but below the "Password" field where it has this text "Use '[algo]$[salt]$[hexdigest]' or use the change password form.", if i click on the "change password form' link, it produces this error Truncated incorrect DOUBLE value: '7/password' What can i do to fix this?

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  • Programming introduction book

    - by Avi
    Hello there, I've offered an out-of-job girl to help her study programming (with an MCSD as the ultimate goal) - and she has no progrmming knowledge. The idea is that she'll study from books and I"ll help. Help- I need a gentle introduction to programming book, very easy, very practical, very hands-on and up to date. Optimally would be for the .Net 4.0 MS enviornment (C#,Visual Basic) but other alternaitves (Jave, Python etc.) are OK.

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