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  • C#: Accessing a Dictionary.Keys Key through a numeric index

    - by Michael Stum
    I'm using a Dictionary<string, int> where the int is a count of the key. Now, I need to access the last-inserted Key inside the Dictionary, but i do not know the name of it. The obvious attempt: int LastCount = mydict[mydict.keys[mydict.keys.Count]]; does not work, because Dictionary.Keys does not implement a []-indexer. I just wonder if there is any similar class? I thought about using a Stack, but that only stores a string. I could now create my own struct and then use a Stack<MyStruct>, but I wonder if there is another alternative, essentially a Dictionary that implements an []-indexer on the Keys?

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  • Domain registration public information, measures domain authority in SEO?

    - by Rana
    I have seen on internet in various places talking about this and they says this information do have impact on SEO, specially in the domain authority section. Is it so? If so, Is there any proper way to fill this up? Like, I am running a site as my blog, what should the the organization field? If I own multiple domains, will having same contact information on all of them help gain domain authority? As a owner of multiple sites, should organization name be same or different? Considering I don't own a company yet? Any other suggestion about this?

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  • problem generating pgp keys?

    - by pavankumar
    I'm using RSACryptoServiceProvider I've generated public key and private key. The keys generated by it are in the following format: Public key: <RSAKeyValue> <Modulus>m9bAoh2...eGNKYs=</Modulus> <Exponent>AQAB</Exponent> </RSAKeyValue> Private key: <RSAKeyValue> <Modulus>m9bAo...ZAIeGNKYs=</Modulus> <Exponent>AQAB</Exponent> <P>xGj/UcXs...R1lmeVQ==</P> <Q>yx6e18aP...GXzXIXw==</Q> <DP>NyxvnJ...1xAsEyQ==</DP> <DQ>La17Jycd...FhApEqwznQ==</DQ> <InverseQ>JrG7WCT...Hp3OWA==</InverseQ> <D>RdWsOFn....KL699Vh6HK0=</D> </RSAKeyValue> but using PGP Desktop i've generated keys like this - Public key: mQCNBEoOlp8BBACi/3EvBZ83ZduvG6YHu5F0P7Z3xOnpIsaPvTk0q+dnjwDUa5sU lEFbUZgDXSz7ZRhyiNqUOy+IG3ghPxpiKGBtldVpi33qaFCCEBiqsxRRpVCLgTUK HP2kH5ysrlFWkxTo =a4t9 Private key: lQHgBEoOlp8BBACi/3EvBZ83ZduvG6YHu5F0P7Z3xOnpIsaPvTk0q+dnjwDUa5sU lEFbUZgDXSz7ZRhyiNqUOy+IG3ghPxpiKGBtldVpi33qaFCCEBiqsxRRpVCLgTUK waBnEitQti3XgUUEZnz/rnXcQVM0QFBe6H5x8fMDUw== =CVPD So when I'm passing the keys generated by PGP Desktop it is able to do encryption and decryption perfectly but when im passing the keys generated by RSACryptoServiceProvider I'm not able to encrypt and decrypt? Can anyone please tell me how to generate keys in the pattern generated by PGP?

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  • Bug in CF9: values for unique struct keys referenced and overwritten by other keys.

    - by Gin Doe
    We've run into a serious issue with CF9 wherein values for certain struct keys can be referenced by other keys, despite those other keys never being set. See the following examples: Edit: Looks like it isn't just something our servers ate. This is Adobe bug-track ticket 81884: http://cfbugs.adobe.com/cfbugreport/flexbugui/cfbugtracker/main.html#bugId=81884. <cfset a = { AO = "foo" } /> <cfset b = { AO = "foo", B0 = "bar" } /> <cfoutput> The following should throw an error. Instead both keys refer to the same value. <br />Struct a: <cfdump var="#a#" /> <br />a.AO: #a.AO# <br />a.B0: #a.B0# <hr /> The following should show a struct with 2 distinct keys and values. Instead it contains a single key, "AO", with a value of "bar". <br />Struct b: <cfdump var="#b#" /> This is obviously a complete show-stopper for us. I'd be curious to know if anyone has encountered this or can reproduce this in their environment. For us, it happens 100% of the time on Apache/CF9 running on Linux, both RH4 and RH5. We're using the default JRun install on Java 1.6.0_14. To see the extent of the problem, we ran a quick loop to find other naming sequences that are affected and found hundreds of matches for 2 letter key names. A similar loop found more conflicts in 3 letter names. <cfoutput>Testing a range of affected key combinations. This found hundreds of cases on our platform. Aborting after 50 here.</cfoutput> <cfscript> teststring = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; stringlen = len(teststring); matchesfound = 0; matches = ""; for (i1 = 1; i1 <= stringlen; i1++) { symbol1 = mid(teststring, i1, 1); for (i2 = 1; i2 <= stringlen; i2++) { teststruct = structnew(); symbol2 = mid(teststring, i2, 1); symbolwhole = symbol1 & symbol2; teststruct[ symbolwhole ] = "a string"; for (q1 = 1; q1 <= stringlen; q1++) { innersymbol1 = mid(teststring, q1, 1); for (q2 = 1; q2 <= stringlen; q2++) { innersymbol2 = mid(teststring, q2, 1); innersymbolwhole = innersymbol1 & innersymbol2; if ((i1 != q1 || i2 != q2) && structkeyexists(teststruct, innersymbolwhole)) { // another affected pair of keys! writeoutput ("<br />#symbolwhole# = #innersymbolwhole#"); if (matchesfound++ > 50) { // we've seen enough abort; } } } } } } </cfscript> And edit again: This doesn't just affect struct keys but names in the variables scope as well. At least the variables scope has the presence of mind to throw an error, "can't load a null": <cfset test_b0 = "foo" /> <cfset test_ao = "bar" /> <cfoutput> test_b0: #test_b0# <br />test_ao: #test_ao# </cfoutput>

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  • Entity Framework use of indexes and foreign keys

    - by David
    I want to be able to search a table quite quickly using the Entity Framework, say if I have a Contacts table, a JobsToDo table and a matrix table linking the two tables e.g Contacts_JobsToDo_Mtx and I specify two foreign keys in the Contacts_JobsToDo_Mtx table, if I wanted to search this Mtx table, do I need to specify an index on the two foreign keys? Or by the fact that they are two foreign keys are they considered indexed on them anyway? Will the Entity Framework be able to search through the Mtx table quickly without having to specfiy an index on both keys? Thanks!

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  • Bouncy Castle, RSA : transforming keys into a String format

    - by Rami W.
    Hi, iam using RSA(Bouncy Castle API) in my c# porject. Igenerated the keypair with this method RsaKeyPairGenerator r = new RsaKeyPairGenerator(); r.Init(new KeyGenerationParameters(new SecureRandom(), 1024)); AsymmetricCipherKeyPair keys = r.GenerateKeyPair(); AsymmetricKeyParameter private_key = keys.Private; AsymmetricKeyParameter public_key = keys.Public; now i want to save them in txt file but the problem is that i can't convert them to a string format. i read in another post that keys must be serialized using PrivateKeyInfo k = PrivateKeyInfoFactory.CreatePrivateKeyInfo(private_key); byte[] serializedKey = k.ToAsn1Object().GetDerEncoded(); Is it the right way ? if yes, what should i do after this ? just convert them from byte[] to String ? thx for any help.

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  • does the order a composite key is defined matter?

    I have a table with (col1,col2) as a composite primary key. create table twokeytable(col1 int,col2 int,constraint twokeytable_pk primary key (col1,col2)); and another table with col3,col4 collumns witha composite foreign key(col3,col4) which references the(col1,col2) primary key. For some processing I need to drop the foreign key and primary constraints .While restoring the constraints does order of the keys matter?. are these same? create table fktwokeytable(col3 int,col4 int,constraint fkaddfaa_fk foreign key(col4,col3) references twokeytable(col1,col2)) and create table fktwokeytable(col3 int,col4 int,constraint fkaddfaa_fk foreign key(col3,col4) references twokeytable(col1,col2))

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  • FluentNHibernate mapping of composite foreign keys

    - by Faron
    I have an existing database schema and wish to replace the custom data access code with Fluent.NHibernate. The database schema cannot be changed since it already exists in a shipping product. And it is preferable if the domain objects did not change or only changed minimally. I am having trouble mapping one unusual schema construct illustrated with the following table structure: CREATE TABLE [Container] ( [ContainerId] [uniqueidentifier] NOT NULL, CONSTRAINT [PK_Container] PRIMARY KEY ( [ContainerId] ASC ) ) CREATE TABLE [Item] ( [ItemId] [uniqueidentifier] NOT NULL, [ContainerId] [uniqueidentifier] NOT NULL, CONSTRAINT [PK_Item] PRIMARY KEY ( [ContainerId] ASC, [ItemId] ASC ) ) CREATE TABLE [Property] ( [ContainerId] [uniqueidentifier] NOT NULL, [PropertyId] [uniqueidentifier] NOT NULL, CONSTRAINT [PK_Property] PRIMARY KEY ( [ContainerId] ASC, [PropertyId] ASC ) ) CREATE TABLE [Item_Property] ( [ContainerId] [uniqueidentifier] NOT NULL, [ItemId] [uniqueidentifier] NOT NULL, [PropertyId] [uniqueidentifier] NOT NULL, CONSTRAINT [PK_Item_Property] PRIMARY KEY ( [ContainerId] ASC, [ItemId] ASC, [PropertyId] ASC ) ) CREATE TABLE [Container_Property] ( [ContainerId] [uniqueidentifier] NOT NULL, [PropertyId] [uniqueidentifier] NOT NULL, CONSTRAINT [PK_Container_Property] PRIMARY KEY ( [ContainerId] ASC, [PropertyId] ASC ) ) The existing domain model has the following class structure: The Property class contains other members representing the property's name and value. The ContainerProperty and ItemProperty classes have no additional members. They exist only to identify the owner of the Property. The Container and Item classes have methods that return collections of ContainerProperty and ItemProperty respectively. Additionally, the Container class has a method that returns a collection of all of the Property objects in the object graph. My best guess is that this was either a convenience method or a legacy method that was never removed. The business logic mainly works with Item (as the aggregate root) and only works with a Container when adding or removing Items. I have tried several techniques for mapping this but none work so I won't include them here unless someone asks for them. How would you map this?

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  • how to have separate keys per record in mongo_mapper + Rails

    - by Vitaly Kushner
    When I'm adding a record in mongodb I can specify whatever keys I want and it will store it in the db. The problem is that it will remember those keys for the next time I insert another record. so for example if I do the following: Product.create :foo => 123 and then Product.create :bar => 456 I get :foo => nil field in the 2nd record. This is definitely not a limitation of mongodb itself, since if I restart the rails console and create yet another record with different set of columns, it will not add the columns from the 1st 2 records. So it seems like mongomapper remembers all the keys used and inserts them all into all records, even if values are not provided. The question is obviously: how do I disable this crazy attributes explosion? Basically I want only the 'permanent' keys that I specify in the model to be in every record, but all the 'extra' attributes to be specified per record and not to mess the consequent records.

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  • NSDictionary: Two keys per value?

    - by Derek
    I would like to create an NSDictionary (or something similar) that has two keys per value. It will be for English/Spanish word look-up, where: each value is an array containing all the conjugated verbs in English AND Spanish. each (two) keys contains both an English infinitive (e.g. "to be", "to go") and a Spanish infinitive This way, I can look a word up regardless of language based on the values having two keys per value. Here's an example: keys: "to want" or "querer" values: ["want", "want", "wants", "want", "want", "quiero", "quieres", "quiere", "queremos", "quieren"]

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  • Autostart desktop applications without session login

    - by derekcentrico
    I understand the idea of startup applications when starting a session (ie How do I start a program automatically when I boot?). However, I'm trying to have desktop applications for multiple users start when the computer reboots/starts. Some apps I'm aiming for are Google Music Manager, remote desktop server for each session, etc. How can I either have multiple user sessions launch on boot to get these apps going -or- have them launch some other way for those users? Right now I have my primary user automatically login to start its session and related apps...

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  • How to get the top keys from a hash by value

    - by Kirs Kringle
    I have a hash that I sorted by values greatest to least. How would I go about getting the top 5? There was a post on here that talked about getting only one value. What is the easiest way to get a key with the highest value from a hash in Perl? I understand that so would lets say getting those values add them to an array and delete the element in the hash and then do the process again? Seems like there should be an easier way to do this then that though. My hash is called %words. use strict; use warnings; use Tk; #Learn to install here: http://factscruncher.blogspot.com/2012/01/easy-way-to-install-tk- on-strawberry.html #Reading in the text file my $file0 = Tk::MainWindow->new->Tk::getOpenFile; open( my $filehandle0, '<', $file0 ) || die "Could not open $file0\n"; my @words; while ( my $line = <$filehandle0> ) { chomp $line; my @word = split( /\s+/, lc($line)); push( @words, @word ); } for (@words) { s/[\,|\.|\!|\?|\:|\;|\"]//g; } #Counting words that repeat; put in hash my %words_count; $words_count{$_}++ for @words; #Reading in the stopwords file my $file1 = "stoplist.txt"; open( my $filehandle1, '<', $file1 ) or die "Could not open $file1\n"; my @stopwords; while ( my $line = <$filehandle1> ) { chomp $line; my @linearray = split( " ", $line ); push( @stopwords, @linearray ); } for my $w ( my @stopwords ) { s/\b\Q$w\E\B//ig; } #Comparing the array to Hash and deleteing stopwords my %words = %words_count; for my $stopwords ( @stopwords ) { delete $words{ $stopwords }; } #Sorting Hash Table my @keys = sort { $words{$b} <=> $words{$a} or "\L$a" cmp "\L$b" } keys %words; #Starting Statistical Work my $value_count = 0; my $key_count = 0; #Printing Hash Table $key_count = keys %words; foreach my $key (@keys) { $value_count = $words{$key} + $value_count; printf "%-20s %6d\n", $key, $words{$key}; } my $value_average = $value_count / $key_count; #my @topwords; #foreach my $key (@keys){ #if($words{$key} > $value_average){ # @topwords = keys %words; # } #} print "\n", "The number of values: ", $value_count, "\n"; print "The number of elements: ", $key_count, "\n"; print "The Average: ", $value_average, "\n\n";

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  • Iterating through list of keys for associative array in JSON

    - by Simon_Weaver
    I have an associative array in JSON var dictionary = {"cats":[1,2,37,38,40,32,33,35,39,36], "dogs", [4,5,6,3,2]}; Can I get the keys from this? I tried in Visual studio putting a breakpoint but can't see any property that represents keys. Is it not possible? I'm fine creating a separate array if necessary, but was just hoping it wasnt : var keys = ["cats", "dogs"];

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  • Is there any restriction in generating the maximum number of keys for google maps

    - by Aruna
    Hi , I have generated a Google map key by login as a [email protected] . Is there any restriction in generating the number of keys for each user. Since we have 2 different domains and i need to generate key for that too. Actually i am not sure about of how many keys the person who used this id has created.. And is there any way to find of how many keys had already been created for the same account previously???

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  • Jumping Login Box after Lighdm Multiple Monitor workaround

    - by Tom Gamon
    So I used this workaround to sort my resolution at the login screen when using multiple monitors with Lightdm. #!/bin/bash XCOM0=`xrandr -q | grep 'VGA1 connected'` XCOM1=`xrandr --output LVDS1 --primary --auto --output VGA1 --auto --right-of LVDS1` XCOM2=`xrandr --output LVDS1 --primary --auto` # if the external monitor is connected, then we tell XRANDR to set up an extended desktop if [ -n "$XCOM0" ] || [ ! "$XCOM0" = "" ]; then echo $XCOM1 # if the external monitor is disconnected, then we tell XRANDR to output only to the laptop screen else echo $XCOM2 fi exit 0; Found Here: How to force Multiple Monitors correct resolutions for LightDM? It works great. However, now when I am on my login screen, the login box seems to jump to between the two displays. Any advice as to how I could make it stay on one display? Thanks

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  • C# Dictionary<> and mutable keys

    - by Pierreten
    I was told that one of the many reasons strings were made immutable in the C# spec was to avoid the issue of HashTables having keys changed when references to the string keys altered their content. The Dictionary< type allows reference types to be used as a key. How does the dictionary avoid the issue of altered keys that lead to "misplaced" values? Is there a memberwise clone made of an object when used as a key?

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  • Entity Relationships - Can a weak entity take part in a 'one to many' relationship as the 'one'

    - by jonos
    Hi, With the following entity relationship structure I'm struggling to figure out if the relationship between the LOAN and ITEM is valid? The weak entity of Loan uses a partial key of 'loan_dateLeant' and the primary keys from CUSTOMER and ITEM to form its primary key. However LOAN has a 'one to many' relationship with ITEM as a loan can consist of more than one item. But surely this means that if more than one item is loaned, then the loan record will have two item_id values for part of its primary key?

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  • Fetching Cassandra row keys

    - by knorv
    Assume a Cassandra datastore with 20 rows, with row keys named "r1" .. "r20". Questions: How do I fetch the row keys of the first ten rows (r1 to r10)? How do I fetch the row keys of the next ten rows (r11 to r20)? I'm looking for the Cassandra analogy to: SELECT row_key FROM table LIMIT 0, 10; SELECT row_key FROM table LIMIT 10, 10;

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  • Apple shortcuts in Ubuntu

    - by rcourtna
    Hi, I switch between a Mac and Ubuntu often. On my Ubuntu box, I use an Apple Aluminum keyboard. I'm interested in Apple's "command" key: ? (I'm not concerned about the hardware control keys) cmd-T opens a browser tab cmd-C, cmd-V for copy/paste, especially in a terminal window control-c maintains the same meaning in terminal (abort) Just switching the control & command keys in Ubuntu would almost get me there, except for the special behaviour of the keys a terminal (Terminal is my most frequently used app). Has it been done? edit: using Gnome, not KDE

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  • Could not retrieve backup settings for primary ID in Log shipping

    - by user1723139
    I am doing log shipping between two Amazon EC2 instances running Windows Server 2008 R2 with SQL Server 2008 R2 standard edition. Both the instances are in the same domain and I can access the shared folders between the instances. The SQL server service account, agent service account are all running under a domain account. When I activate log shipping (with stand by mode restore in secondary server), the initial backup gets restored on the secondary. After that the backup operation is getting failed and i get the following error message: *** Error: Could not retrieve backup settings for primary ID 'xxxxxx-xxxx-xxxx-xxxx-4d772cd7337e'.(Microsoft.SqlServer.Management.LogShipping) *** *** Error: Failed to connect to server IP-0A7653F2.(Microsoft.SqlServer.ConnectionInfo) *** ****** Error: A network-related or instance-specific error occurred while establishing a connection to SQL Server.******** **The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)(.Net SqlClient Data Provider) *** **----- END OF TRANSACTION LOG BACKUP -----**** Any ideas?

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  • Can't communicate with Primary DNS Server

    - by horsley
    A computer, with Windows 7, can't access any website by domain suddenly. Whether this computer use a wired link or connect to the WLAN, The fault persists IP and DNS obtained automatically, and seems normal (ipconfig /all return the correct info) I can visit websites by using HTTP proxy The DNS server is available, other computer in my room works properly. I can ping myself, the gateway and any other IP, but domains I can use nslookup and obtain the correct IP info There are some error information in the event log about dns client events explaining the client can not verify the DNS server available Windows network diagnosis explain that Windows can't communicate with the device or resource (Primary DNS Server) I guess the dns client should be blame. I tried to do the following things but the fault persist. Reinstall the driver of network adapter Reset TCP/IP (netsh int ip reset) Reset Winsock (netsh winsock reset) Reset LSP I don't want to reinstall the whole os, what should I do?

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  • Selecting primary Internet connection in Windows XP

    - by Mariusz
    There is a computer that has access to the Internet both via the local network and by a GSM modem. As far as I know, when both connections are active, the modem connection is the primary one and all data is transmitted by the modem. Because of the fact that the slow modem connection is supposed to be used as a backup connection, I want Windows to use it only when the connection via LAN is unavailable. At the same time I want the GSM modem connection to be active constantly. Is it possible to make Windows not use modem connection when there is a working LAN Internet connection? Thanks for your help in advance, Mariusz.

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  • Windows 2008 Domain Controller - Backup (BDC) to Primary (PDC)

    - by Klaptrap
    I have created a new domain controller with my single domain forest. I have also made it DHCP and DNS ready - all 3 services have synchronised with the existing W2K8 domain controller. I even migrated the FSMO roles and thought everything was fine. Indeed all machines on network appear to obtain DHCP and DNS from new server and the AD is working on the new server as my internal website uses it for login authentication. I have just noticed, via BgInfo - Sys Internals - that the new server is showing as "backup" and the old as "primary" - I thought I had already achieved this. Have the FSMO roles swapped back - as I have yet to have removed the old server from AD (dcpromo). Do I need to do anything before I run dcpromo on the old server? Any thoughts appreciated....

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  • Trust relationship between this workstation and the primary domain has failed

    - by Funky Si
    I have one laptop used by one user that keeps getting the following error and is unable to log in. Trust relationship between this workstation and the primary domain has failed Can anyone help tell me what is causing this and what I can do to stop it happening. I have tried reformatting which helps for a while, I have also tried reformatting with a new name which helped for a while. This problem has not affected any other user or computer which suggests it is not a problem with the domain but I don't know what to do to stop it happening.

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  • How to add entry for primary and secondary intermediate cert in ssl apache

    - by Huzefa
    I have 1 intermediate certificate with name intermediate.crt But my providing is saying to add 2 certificates primary and secondary. But how to add it in ssl configuration file. Currently I have added only secondary certificate as below SSLCertificateChainFile "/usr/local/apache2/conf/extra/intermediate.crt" But now as my ssl provider is saying to add 2 certificates then what entry i have to do in my ssl.conf file. Or I can also use bundle.pem file which contains both the certificates in 1 file. Let me know how to add bundle.pem file also.

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