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  • Basic questions about SNMP

    - by David Hodgson
    Hi, I'm learning about SNMP, and writing some applications using it. I have some basic questions about the protocol: Do the agents store its state on the device itself? If there is a trap set on an agent, can you do a poll on the same OID to get the same information? Without using a mib file, is there a way to query a device for all of its information at once? If not, and you're writing your own customized manager, do you have to know the structure of what it reports up front? If you're setting up an agent to report, is there usually a way to control the frequency of how often it sends a trap? Or does it usually send a trap as often as some condition is satisfied?

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  • I need an algorithm to find the best path

    - by user242635
    I need an algorithm to find the best solution of a path finding problem. The problem can be stated as: At the starting point I can proceed along multiple different paths. At each step there are another multiple possible choices where to proceed. There are two operations possible at each step: A boundary condition that determine if a path is acceptable or not. A condition that determine if the path has reached the final destination and can be selected as the best one. At each step a number of paths can be eliminated, letting only the "good" paths to grow. I hope this sufficiently describes my problem, and also a possible brute force solution. My question is: is the brute force is the best/only solution to the problem, and I need some hint also about the best coding structure of the algorithm.

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  • Dataset field DBNull -> int?

    - by BobClegg
    SQLServer int field. Value sometimes null. DataAdapter fills dataset OK and can display data in DatagridView OK. When trying to retrieve the data programmatically from the dataset the Dataset field retrieval code throws a StronglyTypedException error. [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] public int curr_reading { get { try { return ((int)(this[this.tableHistory.curr_readingColumn])); } catch (global::System.InvalidCastException e) { throw new global::System.Data.StrongTypingException("The value for column \'curr_reading\' in table \'History\' is DBNull.", e); } Got past this by checking for DBNull in the get accessor and returning null but... When the dataset structure is modified (Still developing) my changes (unsurprisingly) are gone. What is the best way to handle this situation? It seems I am stuck with dealing with it at the dataset level. Is there some sort of attribute that can tell the auto code generator to leave the changes in place?

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  • LINQ To Entities - Items, ItemCategories & Tags

    - by Simon
    Hi There, I have an Entity Model that has Items, which can belong to one or more categories, and which can have one or more tags. I need to write a query that finds all tags for a given ItemCategory, preferably with a single call to the database, as this is going to get called fairly often. I currently have: Dim q = (From ic In mContext.ItemCategory _ Where ic.CategoryID = forCategoryID _ Select ic).SelectMany(Function(cat) cat.Items).SelectMany(Function(i) i.Tags) _ .OrderByDescending(Function(t) t.Items.Count).ToList This is nearly there, apart from it doesn't contain the items for each tag, so I'd have to iterate through, loading the item reference to find out how many items each tag is related to (for font sizing). Ideally, I want to return a List(Of TagCount), which is just a structure, containing Tag as string, and Count as integer. I've looked at Group and Join, but I'm not getting anywhere so any help would be greatly appreciated!

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  • In Clojure - How do I access keys in a vector of structs

    - by Nick
    I have the following vector of structs: (defstruct #^{:doc "Basic structure for book information."} book :title :authors :price) (def #^{:doc "The top ten Amazon best sellers on 16 Mar 2010."} best-sellers [(struct book "The Big Short" ["Michael Lewis"] 15.09) (struct book "The Help" ["Kathryn Stockett"] 9.50) (struct book "Change Your Prain, Change Your Body" ["Daniel G. Amen M.D."] 14.29) (struct book "Food Rules" ["Michael Pollan"] 5.00) (struct book "Courage and Consequence" ["Karl Rove"] 16.50) (struct book "A Patriot's History of the United States" ["Larry Schweikart","Michael Allen"] 12.00) (struct book "The 48 Laws of Power" ["Robert Greene"] 11.00) (struct book "The Five Thousand Year Leap" ["W. Cleon Skousen","James Michael Pratt","Carlos L Packard","Evan Frederickson"] 10.97) (struct book "Chelsea Chelsea Bang Bang" ["Chelsea Handler"] 14.03) (struct book "The Kind Diet" ["Alicia Silverstone","Neal D. Barnard M.D."] 16.00)]) I would like to sum the prices of all the books in the vector. What I have is the following: (defn get-price "Same as print-book but handling multiple authors on a single book" [ {:keys [title authors price]} ] price) Then I: (reduce + (map get-price best-sellers)) Is there a way of doing this without mapping the "get-price" function over the vector? Or is there an idiomatic way of approaching this problem?

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  • C# - Removing items from lists and all references to them.

    - by LiamV
    Hi there, I'm facing a situation where I have dependent objects and I would like to be able to remove an object and all references to it. Say I have an object structure like the code below, with a Branch type which references two Nodes. public class Node { // Has Some Data! } public class Branch { // Contains references to Nodes public Node NodeA public Node NodeB } public class Graph { public List<Node> Nodes; public List<Branch> Branches; } If I remove a Node from the Nodes list in the Graph class, it is still possible that one or more Branch objects still contains a reference to the removed Node, thus retaining it in memory, whereas really what I would quite like would be to set any references to the removed Node to null and let the garbage collection kick in. Other than enumerating through each Branch and checking each Node reference sequentially, are there any smart ideas on how I remove references to the Node in each Branch instance AND indeed any other class which reference the removed Node? Much appreciated, Liam

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  • ASP.Net MVC Where do you convert from Entities to ViewModels?

    - by Pino
    Title pretty much explains it all, its the last thing I'm trying to work into our project. We are structured with a Service Library which contains a function like so. /// <summary> /// Returns a single category based on the specified ID. /// </summary> public Category GetCategory(int CategoryID) { var RetVal = _session.Single<Category>(x => x.ID == CategoryID); return RetVal; } Now Category is a Entity (We are using Entity Framework) we need to convert that to a CategoryViewModel. Now, how would people structure this? Would you make sure the service function returned a CategoryViewModel? Have the controller pull the data from the service then call another function to covnert to a view model?

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  • Apache POI HWPF Nested Lists?

    - by Mahadevan
    Hi, I used the following code to read list structures from a word file using hwpf. My question is how to read a list structure that is nested ie a list within a list within a list and so on. if (p instanceof ListEntry) { ListEntry entry = (ListEntry) p; outText = entry.text(); outText = "<li>" + outText + "</li>"; // verifca prima e ultimo if (i > 1) { pPrev = range.getParagraph(i - 1); if (!(pPrev instanceof ListEntry)) outText = "<ul>" + outText; } if (i < nParagrafi - 1) { pNext = range.getParagraph(i + 1); if (!(pNext instanceof ListEntry)) outText = outText + "</ul>"; } if (i == nParagrafi - 1) { outText = outText + "</ul>"; }

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  • Move million records from MEMORY table to MYISAM table.

    - by Prashant
    Hi, I am looking for a fast way to move records from a MEMORY table to MYISAM table. MEMORY table has around 0.5 million records. Both tables have exactly the same structure (same number of columns, data types etc.). But the MYISAM table is indexed (B-TREE) on a few columns. There are around 25 columns most of which are unsigned integers. I have already tried using "INSERT INTO SELECT * FROM " query. But is there any faster way to do this? Appreciate your help. Prashant

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  • Crystal report file does not get deployed to server in ASP.NET MVC

    - by Andrew
    I am using a crystal reports through crystal report viewer server side control in a webform. I am using a webform because the crystal report viewer provides an easy way to export to PDF and to Excel. My problem is that when I deploy to the server, the crystal report .rpt file does not get copied to the target folder. My solution structure looks like this: Solution |-Content |-Controllers |-Models |-Views |-etc... |-Reports |-Default.aspx |-Report.rpt On the server, the Report.rpt file is missing after I publish.

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  • How can I download all files of a specific type from a website using PHP?

    - by CheeseConQueso
    I want to get all midi (*.mid) files from a site that's set up pretty simple in terms of directory tree structure. I wish we had wget installed here, but that's another party.... The site is VGMusic.com and the path containing all of the midi files is: http://www.vgmusic.com/music/console/nintendo/nes/ I tried glob'ing it out, but I suppose that glob only works locally? Here is what I wrote to try to make it happen (doesn't work.. obviously..): <?php echo 'not a blizzard<br>'; foreach(glob('http://www.vgmusic.com/music/console/nintendo/nes/*.mid') as $filename) { echo $filename.'<br>'; //$newfile = 'http://www.mydomain.com/nes/'.$filename; //copy($filename, $newfile) } ?> I tried it also without the http:// in there with no luck.

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  • Fast search in XMl files in .NET (or How to index XML files)

    - by codymanix
    I have to implement a search feature which is able to quickly perform arbitrary complex queries to XML-data. If the user makes a query, all XML files must be searched to find possible matches. The users will have lots of XML-Files (a few 10000 or more) which are typically a few kilobytes in size. All the XML-files have almost the same structure. I already benchmarked XPath, it is too slow for my needs. How can it be done most efficiently? Is is possible to create indexes for the contents of the XML files (preserving content semantics, not just plain fulltext search)? Will it be useful to put the XML data into an (embedded) SQL database and do the queries with SQL? What other possibilities do I have?

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  • remote cpio copy

    - by soField
    remsh remoteserverhostname -l remoteusername find /tmp/a1/ | cpio -o > /tmp/paketr.cpio rcp remoteserverhostname:/tmp/paketr.cpio /tmp/aaa cpio -idmv < /tmp/paketr.cpio i'am trying to get and create directory structure from remote server to local server i can do this with following command list but i wonder if i can do this with just one command by running cpio with pass-through mode remsh remoteserverhostname find /tmp/a1 | cpio -pd /tmp current </tmp/tmp/a1/b1/y1> newer current </tmp/tmp/a1/b1/z1> newer current </tmp/tmp/a1/b2/l2smc> newer "/tmp/a1/b3": No such file or directory Cannot stat </tmp/a1/b3>. 0 blocks so when i try to cpio -pd option , i am expecting it to create directories for me but it does not what can i do ?

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  • hp -ux remote cpio copy

    - by soField
    REMOTE SERVER remsh remoteserverhostname -l remoteusername find /tmp/a1/ | cpio -o > /tmp/paketr.cpio LOCAL SERVER rcp remoteserverhostname:/tmp/paketr.cpio /tmp/aaa cpio -idmv < /tmp/paketr.cpio i'am trying to get and create directory structure from remote server to local server i can do this with following command list but i wonder if i can do this with just one command by running cpio with pass-through mode remsh remoteserverhostname find /tmp/a1 | cpio -pd /tmp current </tmp/tmp/a1/b1/y1> newer current </tmp/tmp/a1/b1/z1> newer current </tmp/tmp/a1/b2/l2smc> newer "/tmp/a1/b3": No such file or directory Cannot stat </tmp/a1/b3>. 0 blocks so when i try to cpio -pd option , i am expecting it to create directories for me but it does not i was using rcp but its not preserving symbolic links :( what can i do ? hp-ux

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  • IIS6 Problems with ASP.NET MVC.

    - by Markus
    Hello, I have a ASP.NET MVC page. I Configured a IIS Website and added the additonal H:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll. my Directory Structure is like that / ../App_data/ ../bin/ ../Content/ ../Properties/ ../Scripts/ ../Views/ ../Default.aspx ../Global.asax ../Web.config My page is configured to port 9090. If i try to access the page i get the "default" Page. But if i try to access any other page than the //myServer:9090 like //myServer:9090/home (which is the default method in my HomeController) i get a "page not found" error page. For me it looks like he does'nt execute the assambly. In the Debbuging Server all runs nice. What could be the Problem? P.S: If i forgort something pls ask for! thanks!

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  • How to get SVN to ignore a directory inside an externals definition

    - by NerdStarGamer
    I'm using subversion to host my own repository for a WordPress installation. I've got it set up so that all of the core WordPress files are in their own directory (called wordpress) and set up to use svn:externals to link to the WordPress repository. I then have my own copy of the wp-content directory (located outside of the wordpress directory) which does not use svn:externals. This is all working fine. When I update my repository, the WordPress core gets updated. Since the WordPress repository contains it's own wp-content directory, it also updates that directory. So my file structure ends up looking something like this: / --/wordpress/ (wordpress repo) -----/wp-admin/ -----/wp-content/ --/wp-content/ (my local repo) I end up having two separate versions of the wp-content folder (one from my repo and one from the WordPress repo). I don't want the one from the WordPress repo (or at least not in that location). Is there a way for me to set svn to ignore the wordpress/wp-content directory while still using externals definition?

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  • Custom ASP.NET MVC cache controllers in a shared hosting environment?

    - by Daniel Crenna
    I'm using custom controllers that cache static resources (CSS, JS, etc.) and images. I'm currently working with a hosting provider that has set me up under a full trust profile. Despite being in full trust, my controllers fail because the caching strategy relies on the File class to directly open a resource file prior to treatment and storage in memory. Is this something that would likely occur in all full trust shared hosting environments or is this specific to my host? The static files live within my application's structure and not in an arbitrary server path. It seems to me that custom caching would require code to access the file directly, and am hoping someone else has dealt with this issue.

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  • asp:Login control requests

    - by Dean
    Hi All, ran into an issue, we are using webforms with a site with this dir structure: root: / secure : /securepages/ we only want users who are logged in to access /securepages/. currently we are using the login control, 3.5, forms auth, all is working ok but know we have thrown assl cert into the mix and the issue is that the login control is requesting WebResource.axd?d=XukT0PE1PS-iOKw3RT8Z6g2&t=633834231612265882 from the non secure url e.g. ht tp://www.mysite.com/WebResource.axd?d=XukT0PE1PS-iOKw3RT8Z6g2&t=633834231612265882 . This causes the browser to prompt the user to download unsecure content. I am using some redirecting in the global.asax to handle redirection to https://xx xxxlogin.aspx if login.aspx it requested from http://. thanks

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  • Why are Pascal control structures inconsistent?

    - by 70Mike
    Most Pascal control structures make sense to me, like: for ... do {statement}; if (condition) then {statement}; while (condition) do {statement}; where the {statement} is either a single statement, or a begin ... end block. I have a problem with: repeat {statement-list} until (expression); try {statement-list} except {statement-list} end; Wouldn't it be better that repeat and try have the same general structure, accepting only a single statement or a begin ... end block, instead of having a statement-list that's not formally blocked with a begin and an end?

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  • Calling a running C# application from VBA

    - by Robert
    I have some VBA code that needs to talk to a running c# application. For what it's worth, the c# application runs as a service, and exposes an interface via .net remoting. I posted a question regarding a specific problem I'm having already (http://stackoverflow.com/questions/2556163/from-vb6-to-net-via-com-and-remoting-what-a-mess) but I think I may have my structure all wrong... So I'm taking a step back - what's the best way to go about doing this? One thing that's worth taking into account is that I want to call into the running application - not just call a precompiled DLL...

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  • MYSQL Select and group by date

    - by Gil
    I'm not sure how create a right query to get the result I'm looking for. What I have is 2 tables. first has ID, Name columns and second has date and adminID, which is referenced from table 1 column ID. Now, what I want to get is basically number of times each admin loged in per day during the month. From structure like this one I want to get per day and month data so result would be similar to 1, 2, 2 march total 5 for admin 4. ID | Date ------------------ 4 | 2010/03/01 4 | 2010/03/04 4 | 2010/03/04 4 | 2010/03/05 4 | 2010/03/05

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  • Sharepoint - Navigation.QuickLaunch has missing items

    - by linqmonkey
    The following code generates an ASCII art tree view of a sharepoint site structure based on the items in the quick launch menu. But some are missing. From googling i've found suggestions that this may be because QuickLaunch only contains items that have been customised. Any idea how to fix this? I want to use the QuickLaunch items as many of the sites have subsites and pages that need to be displayed in a specific order. RecurseNavigation(SPWeb web) { depth++; foreach (SPNavigationNode node in web.Navigation.QuickLaunch) { Console.Write(new String('-', depth)); Console.WriteLine(node.Title + " ("+node.Url+")"); RecurseNavigation(root.OpenWeb(node.Url)); } depth--; }

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  • Integrating GSL onto iPhone Xcode

    - by zeroinverse
    I have been trying to integrate GSL (Gnu Scientific Library) into an iPhone project using Xcode. The challenge is GSL has all the modules in different folders, yet when their header files are reference, they often reference instead of or . At least with I could use Xcode's recursive header file search to find it. But with , basically file not found. Does anyone have an easy way to address the hierarchical GSL structure to compile into Xcode? I can do it the tedious way of fixing all the #INCLUDE lines but hoping there is a better alternative. This way, I can more easily update GSL when changes are made by the community. NOTE: I found Xcode needs to find the right header file locations (make sure to adjust your TARGET Build settings, not just your Project Build settings).

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  • Best practice to use MS Excel as a database

    - by Ying
    In office, it is popular to use MS Excel to store data. In most cases, the data is structured, which means it is suitable for a database. I know peole prefer MS Excel for it is easy to change the data structure and data value. So I have an idea to use MS Excel as a database IF people follow a general rule to store data. In other words, by a best practice to use MS Excel as a database. I have thought to use MS Access to store data, but it is expensive and not popular as MS Excel. I don't mind to buy such a solution, especially when it is for .Net platform. Any ideas or suggestions are welcome.

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  • Using string[] as a Dictionary key e.g. Dictionary<string[], StringBuilder>

    - by Nick Allen - Tungle139
    The structure I am trying to achieve is a composite Dictionary key which is item name and item displayname and the Dictionary value being the combination of n strings So I came up with var pages = new Dictionary<string[], StringBuilder>() { { new string[] { "food-and-drink", "Food & Drink" }, new StringBuilder() }, { new string[] { "activities-and-entertainment", "Activities & Entertainment" }, new StringBuilder() } }; foreach (var obj in my collection) { switch (obj.Page) { case "Food": case "Drink": pages["KEY"].Append("obj.PageValue"); break; ... } } The part I am having trouble with is accessing the Dictionary Key pages["KEY"] How do I target the Dictionary Key whose value at [0] == some value? Hope that makes sense

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