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  • linq-to-sql combine .any expression

    - by Victor
    I need to filter out parent by property value of child collection. I am doing something like this: var results = (from c in db.Customers where c.Orders.Any(o => o.Status = (int)Status.Ordered) select c; It's fine but now I need to filter by 2 values, i.e. take all parent records that have any chilren records that have BOTH values: var results = (from c in db.Customers where c.Orders.Any(o => o.Status == (int)Status.Ordered) && (o.Status == (int).Shipped)) select c; Trying something obvious like this doesn't work.

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  • Stack and queue operations on the same array.

    - by Passonate Learner
    Hi. I've been thinking about a program logic, but I cannot draw a conclusion to my problem. Here, I've implemented stack and queue operations to a fixed array. int A[1000]; int size=1000; int top; int front; int rear; bool StackIsEmpty() { return (top==0); } bool StackPush( int x ) { if ( top >= size ) return false; A[top++] = x; return true; } int StackTop( ) { return A[top-1]; } bool StackPop() { if ( top <= 0 ) return false; A[--top] = 0; return true; } bool QueueIsEmpty() { return (front==rear); } bool QueuePush( int x ) { if ( rear >= size ) return false; A[rear++] = x; return true; } int QueueFront( ) { return A[front]; } bool QueuePop() { if ( front >= rear ) return false; A[front++] = 0; return true; } It is presumed(or obvious) that the bottom of the stack and the front of the queue is pointing at the same location, and vice versa(top of the stack points the same location as rear of the queue). For example, integer 1 and 2 is inside an array in order of writing. And if I call StackPop(), the integer 2 will be popped out, and if I call QueuePop(), the integer 1 will be popped out. My problem is that I don't know what happens if I do both stack and queue operations on the same array. The example above is easy to work out, because there are only two values involved. But what if there are more than 2 values involved? For example, if I call StackPush(1); QueuePush(2); QueuePush(4); StackPop(); StackPush(5); QueuePop(); what values will be returned in the order of bottom(front) from the final array? I know that if I code a program, I would receive a quick answer. But the reason I'm asking this is because I want to hear a logical explanations from a human being, not a computer.

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  • SQL Server view: how to add missing rows using interpolation

    - by Christopher Klein
    Running into a problem. I have a table defined to hold the values of the daily treasury yield curve. It's a pretty simple table used for historical lookup of values. There are notibly some gaps in the table on year 4, 6, 8, 9, 11-19 and 21-29. The formula is pretty simple in that to calculate year 4 it's 0.5*Year3Value + 0.5*Year5Value. The problem is how can I write a VIEW that can return the missing years? I could probably do it in a stored procedure but the end result needs to be a view.

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  • Cloned Cached item has memory issues

    - by ioWint
    Hi there, we are having values stored in Cache-Enterprise library Caching Block. The accessors of the cached item, which is a List, modify the values. We didnt want the Cached Items to get affected. Hence first we returned a new List(IEnumerator of the CachedItem) This made sure accessors adding and removing items had little effect on the original Cached item. But we found, all the instances of the List we returned to accessors were ALIVE! Object relational Graph showed a relationship between this list and the EnterpriseLibrary.CacheItem. So we changed the return to be a newly cloned List. For this we used a LINQ say (from item in Data select new DataClass(item) ).ToList() even when you do as above, the ORG shows there is a relationship between this list and the CacheItem. Cant we do anything to create a CLONE of the List item which is present in the Enterprise library cache, which DOESNT have ANY relationship with CACHE?!

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  • Subsetting a data frame in a function using another data frame as parameter

    - by lecodesportif
    I would like to submit a data frame to a function and use it to subset another data frame. This is the basic data frame: foo <- data.frame(var1= c('1', '1', '1', '2', '2', '3'), var2=c('A', 'A', 'B', 'B', 'C', 'C')) I use the following function to find out the frequencies of var2 for specified values of var1. foobar <- function(x, y, z){ a <- subset(x, (x$var1 == y)) b <- subset(a, (a$var2 == z)) n=nrow(b) return(n) } Examples: foobar(foo, 1, "A") # returns 2 foobar(foo, 1, "B") # returns 1 foobar(foo, 3, "C") # returns 1 This works. But now I want to submit a data frame of values to foobar. Instead of the above examples, I would like to submit df to foobar and get the same results as above (2, 1, 1) df <- data.frame(var1=c('1','1','3'), var2=c("A", "B", "C")) When I change foobar to accept two arguments like foobar(foo, df) and use y[, c(var1)] and y[, c(var2)] instead of the two parameters x and y it still doesn't work. Which way is there to do this?

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  • Android: dynamically setting links to text in strings.xml

    - by Martyn
    I'm trying to make an app with localisation built in, but I want a way that I can create a web link within the text, the URL being defined elsewhere (for ease of maintenance). So, I have my links in res/values/strings.xml: <?xml version="1.0" encoding="utf-8"?> <resources> ... <string name="link1">http://some.link.com</string> <string name="link2">http://some.link2.com</string> </resources> and my localised text in res/values-en-rGB/strings.xml <?xml version="1.0" encoding="utf-8"?> <resources> ... <string name="sampleText">Sample text\nMore text and link1\nMore text and link2.</string> </resources> I've not tested this bit, but from the localization section of developer.android.com it says that this approach to reducing content duplication should work, although I'm not sure what folder I should put Italian, for example. Would it be in 'res/values-it-rIT/strings.xml'? Lets assume that I have various other languages too. I'm looking for a way of taking the base localised 'sampleText' and inserting my html links in, and getting them to work when clicked on. I've tried two approaches so far: 1, Putting some formatting in the 'sampleText' (%s): <string name="sampleText">Sample text\nMore text and <a href="%s">link1</a>\nMore text and <a href="%s">link2</a>.</string> and then processing the text like this: TextView tv = (TextView) findViewById(R.id.textHolder); tv.setText(getResources().getString(R.string.sampleText, getResources().getString(R.string.link1), getResources().getString(R.string.link2))); But this didn't work when I click on the link, even though the link text is being put in to the correct places. 2, I tried to use Linkify but the regular expression route may be difficult as I'm looking at supporting non-Latin based languages. I tried to put a custom xml tag around the link text and then do something like this: Pattern wordMatcher = Pattern.compile("<span1>.*</span1>"); String viewURL = "content://" + getResources().getString(R.string.someLink); Linkify.addLinks(tv, wordMatcher , viewURL ); But this didn't work either. So, I'd like to know if there's a way of dynamically adding multiple URLs to different sections of the same text which will link to web content? Thank you, Martyn

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  • Detecting Duplicates Using Oracle Business Rules

    - by joeywong-Oracle
    Recently I was involved with a Business Process Management Proof of Concept (BPM PoC) where we wanted to show how customers could use Oracle Business Rules (OBR) to easily define some rules to detect certain conditions, such as duplicate account numbers, duplicate names, high transaction amounts, etc, in a set of transactions. Traditionally you would have to loop through the transactions and compare each transaction with each other to find matching conditions. This is not particularly nice as it relies on more traditional approaches (coding) and is not the most efficient way. OBR is a great place to house these types’ of rules as it allows users/developers to externalise the rules, in a simpler manner, externalising the rules from the message flows and allows users to change them when required. So I went ahead looking for some examples. After quite a bit of time spent Googling, I did not find much out in the blogosphere. In fact the best example was actually from...... wait for it...... Oracle Documentation! (http://docs.oracle.com/cd/E28271_01/user.1111/e10228/rules_start.htm#ASRUG228) However, if you followed the link there was not much explanation provided with the example. So the aim of this article is to provide a little more explanation to the example so that it can be better understood. Note: I won’t be covering the BPM parts in great detail. Use case: Payment instruction file is required to be processed. Before instruction file can be processed it needs to be approved by a business user. Before the approval process, it would be useful to run the payment instruction file through OBR to look for transactions of interest. The output of the OBR can then be used to flag the transactions for the approvers to investigate. Example BPM Process So let’s start defining the Business Rules Dictionary. For the input into our rules, we will be passing in an array of payments which contain some basic information for our demo purposes. Input to Business Rules And for our output we want to have an array of rule output messages. Note that the element I am using for the output is only for one rule message element and not an array. We will configure the Business Rules component later to return an array instead. Output from Business Rules Business Rule – Create Dictionary Fill in all the details and click OK. Open the Business Rules component and select Decision Functions from the side. Modify the Decision Function Configuration Select the decision function and click on the edit button (the pencil), don’t worry that JDeveloper indicates that there is an error with the decision function. Then click the Ouputs tab and make sure the checkbox under the List column is checked, this is to tell the Business Rules component that it should return an array of rule message elements. Updating the Decision Service Next we will define the actual rules. Click on Ruleset1 on the side and then the Create Rule in the IF/THEN Rule section. Creating new rule in ruleset Ok, this is where some detailed explanation is required. Remember that the input to this Business Rules dictionary is a list of payments, each of those payments were of the complex type PaymentType. Each of those payments in the Oracle Business Rules engine is treated as a fact in its working memory. Implemented rule So in the IF/THEN rule, the first task is to grab two PaymentType facts from the working memory and assign them to temporary variable names (payment1 and payment2 in our example). Matching facts Once we have them in the temporary variables, we can then start comparing them to each other. For our demonstration we want to find payments where the account numbers were the same but the account name was different. Suspicious payment instruction And to stop the rule from comparing the same facts to each other, over and over again, we have to include the last test. Stop rule from comparing endlessly And that’s it! No for loops, no need to keep track of what you have or have not compared, OBR handles all that for you because everything is done in its working memory. And once all the tests have been satisfied we need to assert a new fact for the output. Assert the output fact Save your Business Rules. Next step is to complete the data association in the BPM process. Pay extra care to use Copy List instead of the default Copy when doing data association at an array level. Input and output data association Deploy and test. Test data Rule matched Parting words: Ideally you would then use the output of the Business Rules component to then display/flag the transactions which triggered the rule so that the approver can investigate. Link: SOA Project Archive [Download]

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  • How do you link to an action that takes an array as a parameter (RedirectToAction and/or ActionLink)

    - by Andrew
    I have an action defined like so: public ActionResult Foo(int[] bar) { ... } Url's like this will work as expected: .../Controller/Foo?bar=1&bar=3&bar=5 I have another action that does some work and then redirects to the Foo action above for some computed values of bar. Is there a simple way of specifying the route values with RedirectToAction or ActionLink so that the url's get generated like the above example? These don't seem to work: return RedirectToAction("Foo", new { bar = new[] { 1, 3, 5 } }); return RedirectToAction("Foo", new[] { 1, 3, 5 }); <%= Html.ActionLink("Foo", "Foo", new { bar = new[] { 1, 3, 5 } }) %> <%= Html.ActionLink("Foo", "Foo", new[] { 1, 3, 5 }) %> However, for a single item in the array, these do work: return RedirectToAction("Foo", new { bar = 1 }); <%= Html.ActionLink("Foo", "Foo", new { bar = 1 }) %> When setting bar to an array, it redirects to the following: .../Controller/Foo?a=System.Int32[] Finally, this is with ASP.NET MVC 2 RC. Thanks.

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  • How do you implement Software Transactional Memory?

    - by Joseph Garvin
    In terms of actual low level atomic instructions and memory fences (I assume they're used), how do you implement STM? The part that's mysterious to me is that given some arbitrary chunk of code, you need a way to go back afterward and determine if the values used in each step were valid. How do you do that, and how do you do it efficiently? This would also seem to suggest that just like any other 'locking' solution you want to keep your critical sections as small as possible (to decrease the probability of a conflict), am I right? Also, can STM simply detect "another thread entered this area while the computation was executing, therefore the computation is invalid" or can it actually detect whether clobbered values were used (and thus by luck sometimes two threads may execute the same critical section simultaneously without need for rollback)?

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  • how to install gfortran package on ubuntu 12.04 offline pc

    - by veerendar
    I have downloaded gfortran package from there site and now looking for installing it on the offline ubuntu 12.04 pc... please don't close this question stating possible duplicate. I am looking for steps to install the package by extracting and installing it. I don't want to use get-offline neither keryx nor to use some other online ubuntu systems. I am very much clear.. I have the downloaded package and I am looking forward for the steps to install the package with out accessing internet. Thanks!

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  • Does having multiple URIs mapping to the same resource help SEO?

    - by Brian Wheeler
    Let's say I have a site with products that have tags, if each resource is available at GET '/products/tagged/:tag_list/:product_permalink' Could that be better for SEO than just one permalink? For example a product tagged "tea" and "coffee" would be available at GET '/products/tagged/tea/:product_permalink' GET '/products/tagged/coffee/:product_permalink' GET '/products/tagged/tea/coffee/:product_permalink' GET '/products/tagged/coffee/tea/:product_permalink' I would imagine that google would appreciate this because it gives multiple URIs with different levels of detail about the product, but I cant really be certain. Anyone have any direct knowledge on the topic? --EDIT-- As John Conde points, this is a horrible idea. What about having the links on my site link to a route such as GET '/products/tagged/:full_tag_list/:product_permalink', and then any time a user changes tags just have a HTTP moved permanently status to the new URL. Therefore duplicate URLs would be highly unlikely and mitigated by the proper response. Would this be better?

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  • Should Site Title be Before or After Page Title?

    - by NickAldwin
    Possible Duplicate: Does the order of keywords matter in a page title? Apologies if this is a dupe. I tried searching, but didn't find anything specifically addressing this concern. When creating a large(ish) site, page titles usually reference both the site name and the current page name. However, it seems there are two main conventions: Bob's Awesome Site - Contact Page and Contact Page - Bob's Awesome Site I've looked around, and pages usually use one of the two variants above. Is there any reason to use one over the other? SEO/readability/usability/etc? I've thought about it, and have only come up with: Page first - Differentiates the tab when the browser is crowded with lots of tabs Site first - Immediately see the "parent" site, so to speak; more cohesive experience

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  • How are integers converted to strings under the hood?

    - by CrazyJugglerDrummer
    I suppose the real question is how to convert base2/binary to base10. The most common application of this would probably be in creating strings for output: turning a chunk of binary numerical data into an array of characters. How exactly is this done? my guess: Seeing as there probably isn't a string predefined for each numerical value, I'm guessing that the computer goes through each bit of the integer from right to left, each time incrementing the appropriate values in the char array/base10 notation places. If we take the number 160 in binary (10100000), it would know that a 1 in the 8th place means 128, so it places 1 into the third column, 2 in the second, and 8 in the third. The 1 in the 6th column means 32, and it would add those values to the second and first place, carrying over if needed. After this it's an easy conversion to actual char codes.

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  • How to clone a VirtualBox Disk

    - by [email protected]
     How to clone a VirtualBox DiskCopying the image of Virtual Disk (.vdi file) is a convenient way to duplicate the disk, in cases you want to avoid re-installing an operating system from scratch. However, simply copying the .vdi file into another location will make a verbatim copy of the virtual disk, including the UUID of the disk. If you try to add the copy in the Virtual Media Manager, you will get an error like this:In this case, you have to do is to clone the vdi disk: cd C:\Program Files\Sun\VirtualBox\C:\Program Files\Sun\VirtualBox>vboxmanage clonevdi G:\VMWARES\Database\11GR2onOEL5forVbox\11GR2_OEL5_32GB.vdi G:\VMWARES\Database\11GR2onOEL5forVbox\OEL5_32GB.vdi$ VBoxManage clonevdi Master.vdi Clone.vdiIn case you receive a error like this. It means that the disk is already a copy of other VirtualBox Disk.In that case you chould change the UUID before to clone the Disk.Follow the steps given here in order to do that.

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  • Looking for PCA snippet/source code in C++

    - by jihchuan
    Hi, I'm currently developing a software to compare 2 images. I start with extract the image's RGB values, form a matrix of array and then attempt to compress the values using PCA, and then match/recognize it with a pre-set data to find its similarity. But I can't proceed with the PCA part. (I'm using C++, C also can) If there any library/source code/snippet for it please let me know, or if there're any recommendation on my case also very welcomed!! I'd appreciate your helps!! Thanks! JC, [email protected]

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  • Bind selected value on combobox to view model

    - by Shaggy
    Hi, I have my silverlight app which pulls data into a datagrid from a view model. The vm is exposed via Mef. I also have a details grid which has comboboxes. The vm also contains the data to populate the combobox values. Upon first load, everything works fine and the selected items on te comboboxes are correct and I can select alternative values. However, if I sort my main data grid (allow sort=true) then I find the binding for selected value on the comboboxes dissapear. The combobox is still populated with data but nothing is selected. Has anyone come across this issue before? I am unsure how to solve this one. Thanks

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  • how to consume .net webservices

    - by Rajesh Rolen- DotNet Developer
    please tell that can we consume .net web services in php or not. if yes then please tell me how can we do it. i am to create a web service which takes values and save it in database also it will take values and reply some data as a standard xml format. i know how to create web service and how to use it in asp.net but don't know how to use/call it from php. thing is that i will not be writing code in php to consume but wants to know that do i need to take care of any special thing or need to do some extra code to make it available and use by php developers. i am to create web service in .net framework 2.0 Thanks

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  • Flex: Why does setting scaleX/Y in mxml effect the components size but setting it in actionscript do

    - by ChrisInCambo
    Hi, I'm playing around with the scaleX/Y in the canvas tag and have noticed some strange behaviour. When I set scale in in mxml the width and height of the canvas are adjusted accordingly. For example if I have a canvas like this: <mx:Canvas width="1000" height="1000" scaleX="0.1" scaleY="0.1" /> The canvas now appears on screen to have a width and height of 100 and if inside my creationComplete callback I check the width and height property they are indeed 100. But if I do exactly the same thing except I set the scaleX/Y property from actionscript the canvas on screen appears to have a width and height of 100 as expected, but when I check the width and height property of the canvas they are still at the previous values of 1000. Could anyone help me understand what is going on and also tell me if there is any method that will refresh the width and height values so that they are correct? Thanks, Chris

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  • java.util.Map with HtmlDataTable

    - by gerry
    Hi, I'm developing an application on GlassFish v3 which uses Suns-RI of JavaEE6 and JSF2.0, etc. And the bad thing is, that no changes/switches away from Suns RI can be made (to use MyFaces or something like that). Now, the problem is, that I want to build HtmlDatatable by hand ( in Java code). The datatable should represent a java.util.Map where the first column should display the key and the second the values of the map. I've build successfully a PanelGrid from a java.util.List and used every time the "setExpressionValue" methods of UIComponent to bind the UI to the underlying List. But now, this doesn't work with the Map. Here is a snippet of my code: public HtmlDataTable getEntityDetailsDataTable() { ... Application app = FacesContext.getCurrentInstance().getApplication(); HtmlDataTable component = (HtmlDataTable)app.createComponent(HtmlDataTable.COMPONENT_TYPE); component.setValueExpression("value", ExpressionUtil.createValueExpression("#{entityTree.entity."+fieldName+".entrySet()}", Map.class)); component.setVar("param"); UIColumn column = new UIColumn(); UIOutput label1 = DynamicHtmlComponentCreator.createHtmlOutputText("#{param[key]}", String.class); column.getChildren().add(label1); UIOutput label2 = DynamicHtmlComponentCreator.createHtmlOutputText("#{param[value]}", String.class); column.getChildren().add(label2); component.getChildren().add(column); ... return component; } component.getChildren().add(column); ... return component; } So, further the problem is, that this code only prints out the content of the Map, on another page I need the values displayed in HtmlInputText elements and the whole map updated if the user clicks a i.e. "Save" button. So, further the problem is, that this code only prints out the content of the Map, on another page I need the values displayed in HtmlInputText elements and the whole map updated if the user clicks a i.e. "Save" button. If there is a workaround, to represent the Map as to Lists...please help me, because for this (map as 2 lists) I've no idea how the underlying map/database model can be updated again. Hopefully, someone can help me....

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  • How to develop asp.net web service to create the web method which can take the parameter of type win

    - by Shailesh Jaiswal
    I am developing asp.net web service. I am developing this web service so that OPC ( OLE for process control) client application can use it. In this web service I am using the built-in functions provided by the namespaces using OPC, using OPCDA, using OPCDA.NET. I have also added the namespace using System.Windows.Forms in this web service so that I can use the windows form control. In that we service I have created on web method which takes the parameter of type windows form control as given below. public void getOPCServerItems(TreeView tvServerItems, ListView lvBranchItems) { ArrayList ArrlstObj = new ArrayList(); ItemShowTreeList = OpcSrv.ShowBrowseTreeList(tvServerItems, lvBranchItems); ItemShowTreeList.BrowseModeOneLevel = true; // browse hierachy levels when selected. (default) ItemShowTreeList.Show(OpcSrv.ServerName); } In the above web method I need to pass the values to the built-in function ShowBrowseTreeList() (found in OPC, OPCDA, OPCDA.NET namespaces). This function takes the two parameter of windows form control type. These parameters are Treeview & ListView control of the windows form. In the above web method ShowBrowseTreeList() method automatically create the treeview & listview structure of the available items. Now as I am consuming the web service so I need to pass the values to the webmethod getOPCServerItems(). But as I my consuming application is asp.net application there is no such windows form control. In asp.net application there are also & control. I want to display The data returned in these asp.net controls rather than windows form control. I am not getting the way what should I need to do or how should I pass the values form my client application to this web service ? In the above method getOPCServerItems() when I use the parameter of type treeview & listview it generate s error "Cannot serialize member System.ComponentModel.Component.Site of type System.ComponentModel.ISite because it is an interface.". Can you provide me the the way In which I can write the above web method & how should I pass parameter to the Treeview & Listview control (windows form control) from my asp.net application ? which controls I should use to pass parameters ? Is there any need to do any type of casting ? Can you provide me the the code for above web method so that I can resolve the above issue ?

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  • ASP.NET Nested masterpages, how to set content in the top page from the aspx file?

    - by David Suarez
    I have some content from a CMS that I need to move to raw asp.net pages. Since the templates are nested I guess I can use nested masterpages to acomplish it, but I'm finding that I can't set values on the top masterpage from the deep child page. Here is a sample. I have several nested masterpages with contentplaceholders: top master (with contentPlaceHolder1) nested master, dependent on top master (with contentPlaceHolder2) aspx page, dependent on nested master, defines content for contentPlaceHolder1 and 2 The problem is that asp.net doesn't allow me to have the value of contentPlaceHolder1 defined in the content page, it should be defined in the nested master. But the point is that the client page knows that value, not the template masters (for instance, the page knows about the graphic it has to display on the the top, but the placeholder for the graphic is the top master). How can I set values in the aspx page to be rendered in the top master?

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  • Wild card redirect in htaccess giving error this webpage has a redirect loop

    - by kath
    In my website I changed the directory name "vehicles-cars" to "vehicles-cars-for-sale". When I tried to redirect using a wild card redirect from my old directory name to new directory name in my web hosting cPanel account, I get an error every time I open pages from that directory: this webpage has a redirect loop The website is php. The problem is that that I have lots of pages with the old directory indexed in Google and they are getting duplicate content. I really need some advice on what to do with this problem. Here is .htaccess file code for redirect, thanks. RewriteEngine on RewriteCond %{HTTP_HOST} ^adsbuz\.com$ [OR] RewriteCond %{HTTP_HOST} ^www\.adsbuz\.com$ RewriteRule ^vehicles\-cars\/?(.*)$ "http\:\/\/adsbuz\.com\/vehicles\-cars\-for\-sale\/$1" [R=301,L]

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  • Compact a given array problem

    - by Bragaadeesh
    Dont know whether this is a duplicate, but this was an interview question asked to me. Given an array of random numbers and -1 placed inbetween, I have to compact the array meaning all the -1s are to be replaced and the final output should be the last valid index with the fresh array. For example. Input: 3 4 -1 -1 -1 5 8 -1 8 Output: 3 4 5 8 8 5 8 -1 8 and last valid index is 4 Input: -1 -1 -1 -1 -1 2 Output: 2 -1 -1 -1 -1 2 and last valid index is 0 Input: -1 -1 -1 3 3 3 Output: 3 3 3 3 3 3 and last valid index is 2 You should not swap the values just the last valid index along with the array is enough to decipher the non negative values.

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