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  • how to call array values based on the main id they linked to?

    - by veronica george
    In page one, $add_id2=implode(',',$add_id); //result is 1,4 $item_type2=implode(',',$item_type_2); //result is 8,16 $final_total2=implode(',',$final); //result is 150,430 I pass these values via URL to the page two and store them in session. $_SESSION['cart'][$car]= array ('car'=>$car, 'loc_1'=>$location, array ( 'addon_id'=>$a_id, 'item_type'=>$item_type2, 'final_total'=>$final_t ) ); I call them like this, foreach($_SESSION['cart'] as $cart=>$things) { //display main array value like car id and location id echo $cart; foreach($things as $thing_1=>$thing_2) { foreach($thing_2['addon_id'] as $thi_2=>$thi_4) { //to display addons item for the car id //this is the id for each addon under the above car //echo $thi_2; //this is to echo addon id $thi_4; } } } The above loop works . the addon items array loops through inside main array which is car. If there were two addon items chosen then the addon array will loop twice. Now al I need to do is, How to make $item_type2 and $final_total2 display the value according to the addon id? PS: Same addon items can be chosen multiple times. They are identified uniquely by id(//echo $thi_2;). Thanks.

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  • Deprecated functions not spotted if using "System::Threading::ThreadState" (and others!) C++ VS2005/

    - by Fishboy
    Hi, I'm facing an issue with c++ on vs2005 and also vs2008... here's how you can reproduce the issue.... create a new (c++) project called 'test' (file|new|project) select "Windows Forms Application" and add the 'stdio.h' include and the code fragment below into the test.cpp source file..... -------------------start of snippet-------------------- #include <stdio.h> ... int main(array<System::String ^> ^args) { int i; System::Threading::ThreadState state; char str[20]; sprintf (str, "%s", "test string"); ... -------------------end of snippet-------------------- If you compile the code as above (you'll have to 'buildall' first), you'll get two warnings about 'i' and 'state' being unreferenced (nothing about sprintf being deprecated). If you comment out "System::Threading :Thread state;", you'll get one warning about 'i' being unreferenced and another warning (C4996) for the 'deprecated' sprintf statement.... This issue also occurs for "System::Windows::Forms::MessageBoxIcon", "System::Base64FormattingOptions" (and perhap all 'enum class' types!) Anyone know of the cause and workaround to the issue demonstrated here ( i have other files that demonstate this issue..). (I had started a thread on msdn, but then found this site! see link below) Visual Studio 2005 has stopped warning about deprecated functions

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  • syntax for MySQL INSERT with an array of columns

    - by Mike_Laird
    I'm new to PHP and MySQL query construction. I have a processor for a large form. A few fields are required, most fields are user optional. In my case, the HTML ids and the MySQL column names are identical. I've found tutorials about using arrays to convert $_POST into the fields and values for INSERT INTO, but I can't get them working - after many hours. I've stepped back to make a very simple INSERT using arrays and variables, but I'm still stumped. The following line works and INSERTs 5 items into a database with over 100 columns. The first 4 items are strings, the 5th item, monthlyRental is an integer. $query = "INSERT INTO `$table` (country, stateProvince, city3, city3Geocode, monthlyRental) VALUES ( '$country', '$stateProvince', '$city3', '$city3Geocode', '$monthlyRental')"; When I make an array for the fields and use it, as follows: $colsx = array('country,', 'stateProvince,', 'city3,', 'city3Geocode,', 'monthlyRental'); $query = "INSERT INTO `$table` ('$colsx') VALUES ( '$country', '$stateProvince', '$city3', '$city3Geocode', '$monthlyRental')"; I get a MySQL error - check the manual that corresponds to your MySQL server version for the right syntax to use near ''Array') VALUES ( 'US', 'New York', 'Fairport, Monroe County, New York', '(43.09)' at line 1. I get this error whether the array items have commas inside the single quotes or not. I've done a lot of reading and tried many combinations and I can't get it. I want to see the proper syntax on a small scale before I go back to foreach expressions to process $_POST and both the fields and values are arrays. And yes, I know I should use mysql_real_escape_string, but that is an easy later step in the foreach. Lastly, some clues about the syntax for an array of values would be helpful, particularly if it is different from the fields array. I know I need to add a null as the first array item to trigger the MySQL autoincrement id. What else? I'm pretty new, so please be specific.

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  • Reporting Services Sum of Inner Group in Outer Group

    - by Spoonybard
    I have a report in Reporting Services 2008 using ASP.net 3.5 and SQL Server 2008. The report has 2 groupings and a detail row. This is the current format: Outer Group Inner Group Detail Row The Detail Row represents an item on a receipt and a receipt can have multiple items. Each receipt was paid with a certain payment method. So the Outer Group is grouped by payment type, the Inner Group is grouped by the receipt's ID, and the Detail Row is each item for the given receipt. My raw data result set has two important columns: The Amount Received and the Amount Applied. The Amount Received is how much money in total was collected for all the items on the receipt. The Amount Applied is how much money each item got from the total Amount Received. Sample Result Set: ReceiptID Item ItemID AmountReceived AmountApplied Payment Method ------------------------------------------------------------------------------------------ 1 Book 1 $200.00 $40.00 Cash 1 CD 2 $200.00 $20.00 Cash 1 Software 3 $200.00 $100.00 Cash 1 Backpack 4 $200.00 $40.00 Cash The Inner Group displays the AmountReceived correctly as $200. However, the Outer Group displays the AmountReceived as $800, because I believe that it is going off each detail row which in this case is a count of 4 items. What I want is to see in the Outer Group that the Amount Received is $200. I tried restricting the scope in my SUM function to be the Inner Group, but I get the error "The scope parameter must be set to a string constant that is equal to either the name of a containing group, the name of a containing data region, or the name of a dataset." Does anyone have any suggestions on how to solve this issue? Thanks.

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  • Multiple Foreign keys to a single table and single key pointing to more than one table

    - by user1216775
    I need some suggestions from the database design experts here. I have around six foreign keys into a single table (defect) which all point to primary key in user table. It is like: defect (.....,assigned_to,created_by,updated_by,closed_by...) If I want to get information about the defect I can make six joins. Do we have any better way to do it? Another one is I have a states table which can store one of the user-defined set of values. I have defect table and task table and I want both of these tables to share the common state table (New, In Progress etc.). So I created: task (.....,state_id,type_id,.....) defect(.....,state_id,type_id,...) state(state_id,state_name,...) importance(imp_id,imp_name,...) There are many such common attributes along with state like importance(normal, urgent etc), priority etc. And for all of them I want to use same table. I am keeping one flag in each of the tables to differentiate task and defect. What is the best solution in such a case? If somebody is using this application in health domain, they would like to assign different types, states, importances for their defect or tasks. Moreover when a user selects any project I want to display all the types,states etc under configuration parameters section.

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  • Python "callable" attribute (pseudo-property)

    - by mgilson
    In python, I can alter the state of an instance by directly assigning to attributes, or by making method calls which alter the state of the attributes: foo.thing = 'baz' or: foo.thing('baz') Is there a nice way to create a class which would accept both of the above forms which scales to large numbers of attributes that behave this way? (Shortly, I'll show an example of an implementation that I don't particularly like.) If you're thinking that this is a stupid API, let me know, but perhaps a more concrete example is in order. Say I have a Document class. Document could have an attribute title. However, title may want to have some state as well (font,fontsize,justification,...), but the average user might be happy enough just setting the title to a string and being done with it ... One way to accomplish this would be to: class Title(object): def __init__(self,text,font='times',size=12): self.text = text self.font = font self.size = size def __call__(self,*text,**kwargs): if(text): self.text = text[0] for k,v in kwargs.items(): setattr(self,k,v) def __str__(self): return '<title font={font}, size={size}>{text}</title>'.format(text=self.text,size=self.size,font=self.font) class Document(object): _special_attr = set(['title']) def __setattr__(self,k,v): if k in self._special_attr and hasattr(self,k): getattr(self,k)(v) else: object.__setattr__(self,k,v) def __init__(self,text="",title=""): self.title = Title(title) self.text = text def __str__(self): return str(self.title)+'<body>'+self.text+'</body>' Now I can use this as follows: doc = Document() doc.title = "Hello World" print (str(doc)) doc.title("Goodbye World",font="Helvetica") print (str(doc)) This implementation seems a little messy though (with __special_attr). Maybe that's because this is a messed up API. I'm not sure. Is there a better way to do this? Or did I leave the beaten path a little too far on this one? I realize I could use @property for this as well, but that wouldn't scale well at all if I had more than just one attribute which is to behave this way -- I'd need to write a getter and setter for each, yuck.

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  • servlet and jsp sending query result following MVC framework

    - by kawtousse
    Hi every one, in order to separate java code and html code and be more faithful to MVC framework i am coding like that; in the servlet i put the following: net.sf.hibernate.Session s = null; net.sf.hibernate.Transaction tx; try { s= HibernateUtil.currentSession(); tx=s.beginTransaction(); Query query = s.createQuery("select opcemployees.Nom,opcemployees.Prenom,dailytimesheet.TrackingDate,dailytimesheet.Activity," + "dailytimesheet.ProjectCode,dailytimesheet.WAName,dailytimesheet.TaskCode," + "dailytimesheet.TimeSpent,dailytimesheet.PercentTaskComplete from Opcemployees opcemployees,Dailytimesheet dailytimesheet " + "where opcemployees.Matricule=dailytimesheet.Matricule and dailytimesheet.Etat=3 " + "group by opcemployees.Nom,opcemployees.Prenom" ); for(Iterator it=query.iterate();it.hasNext();) { if(it.hasNext()){ Object[] row = (Object[]) it.next(); request.setAttribute("items", row); }} } catch (HibernateException e){ e.printStackTrace(); } request.getRequestDispatcher("EspaceValidation.jsp").forward(request, response); and in jsp i start like that: <table> <c:forEach items="${items}" var="item"> <tr> <td>? </td> <td>?</td> </tr> </c:forEach> in this case what should i put exactly to obtain my result.a table fulled with the right value from the request

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  • CSS to Make 2 Column Content Areas

    - by Joe Majewski
    I'm trying to stray away from using tables to form the layout of my content, and I can think of two alternatives that I'd like to better learn: (1) styling list items to be side-by-side, and (2) using div blocks that float onto the same line. Both of these would have their own uses for what I'm working on. I'm already using div tags to form the entire layout of my three-column template, but what I need to do now is a bit different. In case it helps, my project can be found here. In short, here's my question; how would I style a div so that the width of it is 50% of the width of the area it occupies, rather than 50% of the width of the page? As for my other question, what would be the best approach to styling list items so that they are side-by-side? I'm working on a registration script now, and instead of using a table with "Username" on the left and the input text on the right, I can use two list items. It's late and I've been working on this project of mine for about 8 hours straight now, so I apologize if I'm asking anything confusing. Feel free to ask me any questions about what I'm trying to do. Thanks, friends. :)

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  • What is preferred method for searching table data using stored procedure?

    - by Mourya
    I have a customer table with Cust_Id, Name, City and search is based upon any or all of the above three. Which one Should I go for ? Dynamic SQL: declare @str varchar(1000) set @str = 'Select [Sno],[Cust_Id],[Name],[City],[Country],[State] from Customer where 1 = 1' if (@Cust_Id != '') set @str = @str + ' and Cust_Id = ''' + @Cust_Id + '''' if (@Name != '') set @str = @str + ' and Name like ''' + @Name + '%''' if (@City != '') set @str = @str + ' and City like ''' + @City + '%''' exec (@str) Simple query: select [Sno],[Cust_Id],[Name],[City],[Country],[State] from Customer where (@Cust_Id = '' or Cust_Id = @Cust_Id) and (@Name = '' or Name like @Name + '%') and (@City = '' or City like @City + '%') Which one should I prefer (1 or 2) and what are advantages? After going through everyone's suggestion , here is what i finally got. DECLARE @str NVARCHAR(1000) DECLARE @ParametersDefinition NVARCHAR(500) SET @ParametersDefinition = N'@InnerCust_Id varchar(10), @InnerName varchar(30),@InnerCity varchar(30)' SET @str = 'Select [Sno],[Cust_Id],[Name],[City],[Country],[State] from Customer where 1 = 1' IF(@Cust_Id != '') SET @str = @str + ' and Cust_Id = @InnerCust_Id' IF(@Name != '') SET @str = @str + ' and Name like @InnerName' IF(@City != '') SET @str = @str + ' and City like @InnerCity' -- ADD the % symbol for search based upon the LIKE keyword SELECT @Name = @Name + '%', @City = @City+ '%' EXEC sp_executesql @str, @ParametersDefinition, @InnerCust_Id = @Cust_Id, @InnerName = @Name, @InnerCity = @City; References : http://blogs.lessthandot.com/index.php/DataMgmt/DataDesign/changing-exec-to-sp_executesql-doesn-t-p http://msdn.microsoft.com/en-us/library/ms175170.aspx

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  • Nullable object must have a value. VB.NET

    - by Glenn05
    I need help. I'm having problem in my program. This is my code on my Business logic layer. Function Load_ItemDetails(ByVal ItemID As String) As Items Dim objItemEnt As New tblitem Dim objitem As New Items Try Using da = New DataAccess objItemEnt = da.Load_ItemDetails(ItemID) With objitem .ItemCode = objItemEnt.ItemCode .ItemName = objItemEnt.ItemName .Description = objItemEnt.Description .NameofType = objItemEnt.NameofType .TypeofPricing = objItemEnt.TypeofPricing .OnStock = objItemEnt.OnStock .ItemPrice = objItemEnt.ItemPrice .DateModified = objItemEnt.DateModified End With Return objitem End Using Catch ex As Exception Throw End Try End Function This code is for my data access layer. Public Function Load_ItemDetails(ByVal ItemCode As String) Dim objitem As New tblitem Try Using entItem = New DAL.systemdbEntities1 Dim qryUsers = From p In entItem.tblitems Where p.ItemCode = ItemCode Select p Dim luser As List(Of tblitem) = qryUsers.ToList If luser.Count > 0 Then Return luser.First Else Return objitem End If End Using Catch ex As Exception Throw End Try End Function` For my Presentation layer: Private Sub Load_Item_Detail(ByVal ItemCode As String) objItem = New Items Using objLogic = New LogicalLayer objItem = objLogic.Load_ItemDetails(ItemCode) With objItem Me.ItemCodetxt.Text = .ItemCode Me.ItemNametxt.Text = .ItemName Me.ItemDesctxt.Text = .Description Me.ItemTypetxt.Text = .NameofType Me.ItemPricetxt.Text = .TypeofPricing Me.ItemOnstocktxt.Text = CStr(.OnStock) Me.ItemPricetxt.Text = CStr(.ItemPrice) Me.TextBox1.Text = CStr(.DateModified) Me.ItemCodetxt.Tag = .ItemCode End With End Using End Sub` and after I run, I get this error Nullable object must have a value help me. I'm stuck. I don't know what to do guys. I new in n tier architecture.

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  • Should I re-use UI elements across view controllers?

    - by Endemic
    In the iPhone app I'm currently working on, I'd like two navigation controllers (I'll call them A and B) to have toolbars that are identical in appearance and function. The toolbar in question will look like this: [(button) (flexible-space) (label)] For posterity's sake, the label is actually a UIBarButtonItem with a custom view. My design requires that A always appear directly before B on the navigation stack, so B will never be loaded without A having been loaded. Given this layout, I started wondering, "Is it worth it to re-use A's toolbar items in B's toolbar?" As I see it, my options are: 1. Don't worry about re-use, create the toolbar items twice 2. Create the toolbar items in A and pass them to B in a custom initializer 3. Use some more obscure method that I haven't thought of to hold the toolbar constant when pushing a view controller As far as I can see, option 1 may violate DRY, but guarantees that there won't be any confusion on the off chance that (for example) the button may be required to perform two different (no matter how similar) functions for either view controller in future versions of the app. Were that to happen, options 2 or 3 would require the target-action of the button to change when B is loaded and unloaded. Even if the button were never required to perform different functions, I'm not sure what its proper target would be under option 2. All in all, it's not a huge problem, even if I have to go with option 1. I'm probably overthinking this anyway, trying to apply the dependency injection pattern where it's not appropriate. I just want to know the best practice should this situation arise in a more extreme form, like if a long chain of view controllers need to use identical (in appearance and function) UI elements.

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  • Multiple collections tied to one base collection with filters and eventing

    - by damienc88
    I have a complex model served from my back end, which has a bunch of regular attributes, some nested models, and a couple of collections. My page has two tables, one for invalid items, and one for valid items. The items in question are from one of the nested collections. Let's call it baseModel.documentCollection, implementing DocumentsCollection. I don't want any filtration code in my Marionette.CompositeViews, so what I've done is the following (note, duplicated for the 'valid' case): var invalidDocsCollection = new DocumentsCollection( baseModel.documentCollection.filter(function(item) { return !item.isValidItem(); }) ); var invalidTableView = new BookIn.PendingBookInRequestItemsCollectionView({ collection: app.collections.invalidDocsCollection }); layout.invalidDocsRegion.show(invalidTableView); This is fine for actually populating two tables independently, from one base collection. But I'm not getting the whole event pipeline down to the base collection, obviously. This means when a document's validity is changed, there's no neat way of it shifting to the other collection, therefore the other view. What I'm after is a nice way of having a base collection that I can have filter collections sit on top of. Any suggestions?

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  • PHP: cannot matching string "<br />

    - by Patrick
    hi, I'm having problems with string matching in PHP. I've 2 html elements in my page, I've copy pasted here the content with Firebug <div class="field-item odd"> <div class="field-label-inline-first"> Year:</div> 2009 </div> <div class="field-item odd"> <div class="field-label-inline-first"> Synopsis:</div> &lt;br /&gt; </div> This php line works perfectly (the element with 2009 is detected) <?php if ($items[0]['view'] == '2009') : echo "ok"; ?> However I'm not able to match the string containing element: <?php if ($items[0]['view'] == '<br />') : echo "ok"; ?> //doesn't work <?php if ($items[0]['view'] == '&lt;br /&gt;') : echo "ok"; ?> //again doesn't work any tip ? To give you some context: The strings are produced by CKEditor, an editor I'm using in my Drupal back-end. When I leave empty this editor, the tag is displayed on the string as plain text (because I set "plain text" as formatting option in the back-end) Thanks

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  • How to make link become inactive?

    - by Konstantin Vasilcov
    The idea was simple: change li background color on hover to one color ul#menu li a:hover {...} change it on mouse press to the other color ul#menu li a:active {...} return the color to the original (normal) if the link is neither hover nor pressed The problem appeared to be that, if user rejected his intention and lets the mouse up away from the link, the back color stays as if it was pressed. Then I tried to research and came up with this: ul#menu li a:hover:active {...} It became better, and the link is not marked with special back color in a normal state after user presses the link and rejects. But the "on-hover" back color became equal to the active one. So it looks like the link gets "active" state and stays in it even after user releases mouse button. Hate to write this, but I am very new to html and css. So I may be missing something very basic here. Could you, please, suggest any way, how to achieve my goal? EDIT I've read this source CSS Styling links (thought there could be some other state to use instead of active), but found nothing suitable there...

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  • Unnecessary Redundancy with Tables.

    - by Stacey
    My items are listed as follows; This is just a summary of course. But I'm using a method shown for the "Detail" table to represent a type of 'inheritence', so to speak - since "Item" and "Downloadable" are going to be identical except that each will have a few additional fields relevant only to them. My question is in this design pattern. This sort of thing appears many, many times in our projects - is there a more intelligent way to handle it? I basically need to normalize the tables as much as possible. I'm extremely new to databases and so this is all very confusing to me. There are 5 items. Awards, Items, Purchases, Tokens, and Downloads. They are all very, very similar, except each has a few pieces of data relevant only to itself. I've tried to use a declaration field (like an enumerator 'Type' field) in conjunction with nullable columns, but I was told that is a bad approach. What I have done is take everything similar and place it in a single table, and then each type has its own table that references a column in the 'base' table. The problem occurs with relationships, or junctions. Linking all of these back to a customer. Each type takes around 2 additional tables to properly junction all of the data together- and as such, my database is growing very, very large. Is there a smarter practice for this kind of behavior? Item ID | GUID Name | varchar(64) Product ID | GUID Name | varchar(64) Store | GUID [ FK ] Details | GUID [FK] Downloadable ID | GUID Name | varchar(64) Url | nvarchar(2048) Details | GUID [FK] Details ID | GUID Price | decimal Description | text Peripherals [ JUNCTION ] ID | GUID Detail | GUID [FK] Store ID | GUID Addresses | GUID Addresses ID | GUID Name | nvarchar(64) State | int [FK] ZipCode | int Address | nvarchar(64) State ID | int Name | varchar(32)

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  • junit test error - ClassCastException

    - by Josepth Vodary
    When trying to run a junit test I get the following error - java.lang.ClassCastException: business.Factory cannot be cast to services.itemservice.IItemsService at business.ItemManager.get(ItemManager.java:56) at business.ItemMgrTest.testGet(ItemMgrTest.java:49) The specific test that is causing the problem is @Test public void testGet() { Assert.assertTrue(itemmgr.get(items)); } The code it is testing is... public boolean get(Items item) { boolean gotItems = false; Factory factory = Factory.getInstance(); @SuppressWarnings("static-access") IItemsService getItem = (IItemsService)factory.getInstance(); try { getItem.getItems("pens", 15, "red", "gel"); gotItems = true; } catch (ItemNotFoundException e) { // catch e.printStackTrace(); System.out.println("Error - Item Not Found"); } return gotItems; } The test to store items, which is nearly identical, works just fine... The factory class is.. public class Factory { private Factory() {} private static Factory Factory = new Factory(); public static Factory getInstance() {return Factory;} public static IService getService(String serviceName) throws ServiceLoadException { try { Class<?> c = Class.forName(getImplName(serviceName)); return (IService)c.newInstance(); } catch (Exception e) { throw new ServiceLoadException(serviceName + "not loaded"); } } private static String getImplName (String serviceName) throws Exception { java.util.Properties props = new java.util.Properties(); java.io.FileInputStream fis = new java.io.FileInputStream("config\\application.properties"); props.load(fis); fis.close(); return props.getProperty(serviceName); } }

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  • Performing a MYSQL query based off of $_GET results

    - by Michael N
    When a user clicks an item on my items page, it takes them to blank page template using $_GET to pass the item brand and model through. I'd like to perform another MYSQL query when that user clicks through to populate the blank page with the product details from my database. I'd like to retrieve the single row using the model number (unique ID) to populate the page with the information. I've tried a couple of things but am having a little difficulty. On my blank item page, I have $brand = $_GET['Brand']; $modelnumber = $_GET['ModelNumber']; $query = mysql_query("SELECT * FROM items WHERE `Model Number` = '$modelnumber'"); $results = mysql_fetch_row($query); echo $results; I think having ''s around Model Number is causing troubles, but without them, I get a Warning: mysql_fetch_row() expects parameter 1 to be resource, boolean given error. My database columns looks like Brand | Model Number | Price | Description | Image A few other things I have tried include $query = mysql_query("SELECT * FROM item WHERE Model Number = $_GET['ModelNumber']"); Which gave me a syntax error. I've also tried concatenating the $_GET which gives me a mysql_fetch_row() expects parameter 1 to be resource, boolean given error Which leads me to believe that I'm also going about displaying the results incorrectly. I'm not sure if I need to put it in a where loop like I have with my previous page which displays all items in the database because this is just displaying one.

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  • Sort Dictionary<> on value, lookup index from key

    - by paulio
    Hi, I have a Dictionary< which I want to sort based on value so I've done this by putting the dictionary into a List< then using the .Sort method. I've then added this back into a Dictionary<. Is it possible to lookup the new index/order by using the Dictionary key?? Dictionary<int, MyObject> toCompare = new Dictionary<int, MyObject>(); toCompare.Add(0, new MyObject()); toCompare.Add(1, new MyObject()); toCompare.Add(2, new MyObject()); Dictionary<int, MyObject> items = new Dictionary<int, MyObject>(); List<KeyValuePair<int, MyObject>> values = new List<KeyValuePair<int, MyObject>> (toCompare); // Sort. values.Sort(new MyComparer()); // Convert back into a dictionary. foreach(KeyValuePair<int, PropertyAppraisal> item in values) { // Add to collection. items.Add(item.Key, item.Value); } // THIS IS THE PART I CAN'T DO... int sortedIndex = items.GetItemIndexByKey(0);

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  • displaying a dialog using an activity?

    - by ricardo123
    what am i doing wrong here or what do i need to add? package dialog.com; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.app.Dialog; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class Dialog extends Activity { CharSequence [] items = { "google", "apple", "microsoft" }; boolean [] itemschecked = new boolean [items.length]; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn = (Button) findViewById(R.id.btn_dialog); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(0); } }); } @Override protected Dialog onCreateDialog(int id) { switch(id) { case 0: return new AlertDialog.Builder(this) .setIcon(R.drawable.icon) .setTitle("This is a Dialog with some simple text...") .setPositiveButton("ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichbutton) { Toast.makeText(getBaseContext(), "OK Clicked!", Toast.LENGTH_SHORT).show(); } }); .setNegativeButton("cancel",new DialogInterface.OnclickListener() { public void onClick(DialogInterface dialog, int whichButton) {Toast.makeText(getBaseContext(), "cancel clicked!", Toast.LENGTH_SHORT).show(); } }); .setMultiChoiceItems(itemschecked, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(dialoginterface dialog, int which, boolean isChecked) { Toast.makeText(getBaseContext(), items[which] + (isChecked ? " checked!": "unchecked!"), Toast.LENGTH_SHORT).show(); } } ) .create(); } return null: }}}

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  • Is there such a thing as a MemberExpression that handles a many-to-many relationship?

    - by Jaxidian
    We're trying to make it easy to write strongly-typed code in all areas of our system, so rather than setting var sortColumn = "FirstName" we'd like to say sortOption = (p => p.FirstName). This works great if the sortOption is of type Expression<Func<Person, object>> (we actually use generics in our code but that doesn't matter). However, we run into problems for many-to-many relationships because this notation breaks down. Consider this simple code: internal class Business { public IQueryable<Address> Addresses { get; set; } public string Name { get; set; } } internal class Address { public State MyState { get; set; } } internal class State { public string Abbreviation { get; set; } public int StateID { get; set; } } Is it possible to have this sort of MemberExpression to identify the StateID column off of a business? Again, the purpose of using this is not to return a StateID object, it's to just identify that property off of that entity (for sorting, filtering, and other purposes). It SEEMS to me that there should be some way to do this, even if it's not quite as pretty as foo = business.Addresses.SomeExtension(a => a.State.StateID);. Is this really possible? If more background is needed, take a look at this old question of mine. We've since updated the code significantly, but this should give you the general detailed idea of the context behind this question.

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  • Patterns to deal with with functions that can have different kinds of results.

    - by KaptajnKold
    Suppose you have an method on an object that given the some input alters the objects state if the input validates according to some complex logic. Now suppose that when the input doesn't validate, it can be due to several different things, each of which we would like to be able to deal with in different ways. I'm sure many of you are thinking: That's what exceptions are for! I've thought of this also. But my reservation against using exceptions is that in some cases there is nothing exceptional about the input not validating and I really would like to avoid using exceptions to control what is really just in the expected flow of the program. If there were only one interpretation possible, I could simply choose to return a boolean value indicating whether or not the operation resulted in a state change or not and the respond appropriately when it did not. There is of course also the option to return a status code which the client can then choose to interpret or not. I don't like this much either because there is nothing semantic about status codes. The solution I have so far is to always check for each possible situation which I am able to handle before I call the method which then returns a boolean to inform the client if the object changed state. This leaves me the flexibility to handle as few or as many as the possible situations as I wish depending on the context I am in. It also has the benefit of making the method I am calling simpler to write. The drawback is that there is quite a lot of duplication in the client code wherever I call the method. Which of these solutions do you prefer and why? What other patterns do people use for providing meaningful feedback from functions? I know that some languages support multiple return values, and I if I had that option I would surely prefer it.

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  • List of values as keys for a Map

    - by thr
    I have lists of variable length where each item can be one of four unique, that I need to use as keys for another object in a map. Assume that each value can be either 0, 1, 2 or 3 (it's not integer in my real code, but a lot easier to explain this way) so a few examples of key lists could be: [1, 0, 2, 3] [3, 2, 1] [1, 0, 0, 1, 1, 3] [2, 3, 1, 1, 2] [1, 2] So, to re-iterate: each item in the list can be either 0, 1, 2 or 3 and there can be any number of items in a list. My first approach was to try to hash the contents of the array, using the built in GetHashCode() in .NET to combine the hash of each element. But since this would return an int I would have to deal with collisions manually (two equal int values are identical to a Dictionary). So my second approach was to use a quad tree, breaking down each item in the list into a Node that has four pointers (one for each possible value) to the next four possible values (with the root node representing [], an empty list), inserting [1, 0, 2] => Foo, [1, 3] => Bar and [1, 0] => Baz into this tree would look like this: Grey nodes nodes being unused pointers/nodes. Though I worry about the performance of this setup, but there will be no need to deal with hash collisions and the tree won't become to deep (there will mostly be lists with 2-6 items stored, rarely over 6). Is there some other magic way to store items with lists of values as keys that I have missed?

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  • php in_array() inside a foreach

    - by 432skronker
    I am having issues with using in_array() inside a foreach loop. Not sure if this is even possible or if I am doing something ridiculous where there are better ways. What I want to do is go through all the items and if their item id matches one thats in the array, return true and add the price of the item to a runninng total. $price = 0; $result = false; $array = array(1533, 2343, 2333); foreach($order['items'] as $item){ if(in_array($item['Item'], $array)){ $result = true; $price += $item['Price']; } } **UPDATED** Here is the order array [items] => Array ( [0] => Array ( [Item] => 139957 [OrderID] => 16025 [SizeID] => 24 [Price] => 46.00 ) [1] => Array ( [Item] => 2343 [OrderID] => 16025 [SizeID] => 12 [Price] => 32.00 ) ) [data] => Array ( )

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  • Sharepoint 2010 - One or more services have started or stopped unexpectedly

    - by Mr Shoubs
    Does anyone know why I keep getting the following message in Sharepoint 2010 review problems and solutions list: The following services are managed by SharePoint, but their running state does not match what SharePoint expects: SPAdminV4. This can happen if a service crashes or if an administrator starts or stops a service using a non-SharePoint interface. If SharePoint-managed services do not match their expected running state, SharePoint will be unable to correctly distribute work to the service. Failing Services: SPTimerService (SPTimerV4) I assume this is referring to Sharepoint 2010 Timer Service but I can only see this in the services msc (and it is running), not in the Application Management > Manage services on server. Does anyone know why this keeps occurring and how I can stop it? Note - I looked in the event log and all I can see is that same error.

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  • GRE keepalive with Linux and RouterOS

    - by eri
    I have a Linux host and couple of routerboadrs. I created a GRE tunnel, but Linux does not answer keepalive packages. Then router mark gre connection as unreachable, so I cant send to Linux host from router subnet. If linux sends something into tunnel (ping, etc.) - RouterOS mark connection as reacheble. Second and next packages routed nicely until one minute idle (no traffic). Tunnel in linux a make in this way: remote=x.x.x.x dev=gre21 network=10.21.0.0/16 ip tunnel add ${dev} mode gre remote ${remote} ttl 255 ip addr add 172.16.1.1/24 peer 172.16.1.21 dev ${dev} ip link set ${dev} up ip route add ${network} dev ${dev} And ip l: 14: gre21: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1476 qdisc noqueue state UNKNOWN link/gre 0.0.0.0 peer 109.60.170.15 How to set state "running"? How to keep alive tunnel? Ping in cron?

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