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  • Query to retrieve records by aplhabetic order, except for n predefined items which must be on top

    - by Ashraf Bashir
    I need to retrieve all records ordered alphabetically. Except for a predefined list of record's columns which their records should appear first in a given predefined order, then all other records should be sorted alphabetically based on the same column For instance, assume we have the following table which is called Names Lets assume the predefined list is ("Mathew", "Ashraf", "Jack"). I.e. these are the names of whom their records should be listed first as in the predefined order. So the desired query result should be: Which query could retrieve this custom order ? P.S, I'm using MySQL. Here's my trial based on comments' request: (SELECT * FROM Names WHERE Name in ('Mathew', 'Ashraf', 'Jack')) UNION (SELECT * FROM Names WHERE Name NOT IN ('Mathew', 'Ashraf', 'Jack') ORDER BY Name ASC); the first query result wasn't ordered as required.

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  • What is wrong with the following Fluent NHibernate Mapping ?

    - by ashraf
    Hi, I have 3 tables (Many to Many relationship) Resource {ResourceId, Description} Role {RoleId, Description} Permission {ResourceId, RoleId} I am trying to map above tables in fluent-nHibernate. This is what I am trying to do. var aResource = session.Get<Resource>(1); // 2 Roles associated (Role 1 and 2) var aRole = session.Get<Role>(1); aResource.Remove(aRole); // I try to delete just 1 role from permission. But the sql generated here is (which is wrong) Delete from Permission where ResourceId = 1 Insert into Permission (ResourceId, RoleId) values (1, 2); Instead of (right way) Delete from Permission where ResourceId = 1 and RoleId = 1 Why nHibernate behave like this? What wrong with the mapping? I even tried with Set instead of IList. Here is the full code. Entities public class Resource { public virtual string Description { get; set; } public virtual int ResourceId { get; set; } public virtual IList<Role> Roles { get; set; } public Resource() { Roles = new List<Role>(); } } public class Role { public virtual string Description { get; set; } public virtual int RoleId { get; set; } public virtual IList<Resource> Resources { get; set; } public Role() { Resources = new List<Resource>(); } } Mapping Here // Mapping .. public class ResourceMap : ClassMap<Resource> { public ResourceMap() { Id(x => x.ResourceId); Map(x => x.Description); HasManyToMany(x => x.Roles).Table("Permission"); } } public class RoleMap : ClassMap<Role> { public RoleMap() { Id(x => x.RoleId); Map(x => x.Description); HasManyToMany(x => x.Resources).Table("Permission"); } } Program static void Main(string[] args) { var factory = CreateSessionFactory(); using (var session = factory.OpenSession()) { using (var tran = session.BeginTransaction()) { var aResource = session.Get<Resource>(1); var aRole = session.Get<Role>(1); aResource.Remove(aRole); session.Save(a); session.Flush(); tran.Commit(); } } } private static ISessionFactory CreateSessionFactory() { return Fluently.Configure() .Database(MsSqlConfiguration.MsSql2008 .ConnectionString("server=(local);database=Store;Integrated Security=SSPI")) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Program>() .Conventions.Add<CustomForeignKeyConvention>()) .BuildSessionFactory(); } public class CustomForeignKeyConvention : ForeignKeyConvention { protected override string GetKeyName(FluentNHibernate.Member property, Type type) { return property == null ? type.Name + "Id" : property.Name + "Id"; } } Thanks, Ashraf.

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  • Can TP-Link router make phone calls?

    - by Umair Ashraf
    I have a TP-Link router with DSL service provided by a local company which serves it over the landline phone. My landline cord is plugged into an ethernet router which is then plugged into TP-Link wireless router. I can access internet with this wireless router all over my home with all computers. Landline Cord [into] Ethernet Router [into] TP-Link Wireless Router [air] Computers I would add that landline cord is also into a phone device which I use to make calls and that's not cordless. Now I am accessing internet via WiFi on my laptop and want to ask if is this possible to make landline calls via this same computer I am surfing internet through? What I am asking it to a dial-up via TP-Link router that goes through landline. You see the landline cord is the actual data gateway and is also used to make calls. So it can simultaneously send Data and Voice over the same wire.

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  • Validation does not work when I use Validator.TryValidateObject.

    - by ashraf
    DataAnnotations does not work with buddy class. The following code always validate true. Why ? var isValid = Validator.TryValidateObject(new Customer(), Context, results, true); and here is the buddy class. public partial class Customer { public string Name { get; set; } public int Age { get; set; } } [MetadataType(typeof(CustomerMetaData))] public partial class Customer { public class CustomerMetaData { [Required(ErrorMessage = "You must supply a name for a customer.")] public string Name { get; set; } } } Here is another thread with same question., but no answer. link text

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  • Error when updating BlackBerry JDE Plug-in for Eclipse (v5.0 Beta 3) ?

    - by Ashraf Bashir
    I tried to update Blackberry JDE plug-in for eclipse from v4.5 to v5.0 Beta 3. I followed the instructions in this page: http://na.blackberry.com/eng/developers/devbetasoftware/updatesite.jsp but unfortunately I got the following error while updating: An error occurred while collecting items to be installed. No repository found containing: net.rim.eide.feature.componentpack5.0.0/org.eclipse.update.feature/5.0.0.14 How this could be solved ? Any suggestions ?

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  • Scala type conversion error, need help!

    - by Mansoor Ashraf
    Hello I am getting a weird error when trying to use a Java map in Scala. This is the snippet of code val value:Double = map.get(name) if (value eq null) map.put(name, time) else map.put(name, value + time) the map is defined as val map=new ConcurrentHashMap[String,Double] and this is the error I am getting error: type mismatch; found : Double required: ?{val eq: ?} Note that implicit conversions are not applicable because they are ambiguous: both method double2Double in object Predef of type (Double)java.lang.Double and method doubleWrapper in object Predef of type (Double)scala.runtime.RichDouble are possible conversion functions from Double to ?{val eq: ?} if (value eq null) map.put(name, time) I am new to Scala so I am having a hard time parsing the stacktrace. Any help would be appreciated

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  • Performance Hosting under WAS vs Host as Service?

    - by ashraf
    I have some performance issue when I host WCF service (net.tcp) under WAS (IIS 7). It is working fine when I host service under console application. The issue is WCF Become Slow After Being Idle For 15 Seconds and a solution. After applying Wenlong Dong workaround delay is gone, but it does not work in WAS (IIS 7). I tried to put "ThreadPoolTimeoutWorkaround.DoWorkaround()" in static AppInitialize() as suggested here, still no luck. Thanks

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  • ios saving uilabel and uiimageview as uiimage

    - by Ashraf Hussein
    I'm trying to add text to an image bu adding a uilabel as subview to a uiimageview I already did that but I want to save them as an image I'm using render in context but it's not working here's my code UIImage * img = [UIImage imageNamed:@"IMG_1650.JPG"]; float x = (img.size.width/imageView.frame.size.width) * touchPoint.x; float y = (img.size.height/imageView.frame.size.height) * touchPoint.y; CGPoint tpoint = CGPointMake(x, y); UIFont *font = [UIFont boldSystemFontOfSize:30]; context = UIGraphicsGetCurrentContext(); UIGraphicsBeginImageContextWithOptions(img.size, YES, 0.0); [[UIColor redColor] set]; for (UIView * view in [imageView subviews]){ [view removeFromSuperview]; } UILabel * lbl = [[UILabel alloc]init]; [lbl setText:txt]; [lbl setBackgroundColor:[UIColor clearColor]]; CGSize sz = [txt sizeWithFont:lbl.font]; [lbl setFrame:CGRectMake(touchPoint.x, touchPoint.y, sz.width, sz.height)]; lbl.transform = CGAffineTransformMakeRotation( -M_PI/4 ); [imageView addSubview:lbl]; [imageView bringSubviewToFront:lbl]; [imageView setImage:img]; [imageView.layer renderInContext:UIGraphicsGetCurrentContext()]; [lbl.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage * nImg = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIImageWriteToSavedPhotosAlbum(nImg, nil, nil, nil); THX

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  • Optimize code perfromance when odd/even threads are doing different things in CUDA

    - by Ashraf
    Hi all! I have two large vectors, I am trying to do some sort of element multiplication, where an even-numbered element in the first vector is multiplied by the next odd-numbered element in the second vector .... and where the odd-numbered element in the first vector is multiplied by the preceding even-numbered element in the second vector Ex. vector 1 is V1(1) V1(2) V1(3) V1(4) vector 2 is V2(1) V2(2) V2(3) V2(4) V1(1) * V2(2) V1(3) * V2(4) V1(2) * V2(1) V1(4) * V2(3) I have written a Cuda code to do this: (Pds has the elements of the first vector in shared memory, Nds the second Vector) //instead of using %2 .. i check for the first bit to decide if number is odd/even -- faster if ((tx & 0x0001) == 0x0000) Nds[tx+1] = Pds[tx] * Nds[tx+1]; else Nds[tx-1] = Pds[tx] * Nds[tx-1]; __syncthreads(); Is there anyway to further accelerate this code or avoid divergence .. Thanks

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  • Macintosh XCode Sharing

    - by Umair Ashraf
    I got a macbook pro and I want to share it with some of my friend located at the other side of internet. He can use Internet. Now I want him to give access to my whole Macbook (XCode for most) so he can do developments at his location using my macbook. Now I need to ask is there a way we can both utilize the samme macbook having two virtual OS (one for me and one for him) without affecting each others' privacy? Is it possible to share the macbook across more than 1 user? I don't mean Remote Desktop like of thing in Windows.

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  • What's wrong with this JAVA code for android?

    - by Umair Ashraf
    I have written this piece of code to break an image into 9 pieces and it gives me runtime error. There is no error in LogCat and I am stuck. The error comes at line 7 line from bottom (Bitmap.createBitmap(...);). public Bitmap[] getPieces(Bitmap bmp) { Bitmap[] bmps = new Bitmap[9]; int width = bmp.getWidth(); int height = bmp.getHeight(); int rows = 3; int cols = 3; int cellHeight = height / rows; int cellWidth = width / cols; int piece = 0; for (int x = 0; x <= width; x += cellWidth) { for (int y = 0; y <= height; y += cellHeight) { Bitmap b = Bitmap.createBitmap(bmp, x, y, cellWidth, cellHeight, null, false); bmps[piece] = b; piece++; } } return bmps; }

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  • PHP Missing Function In Older Version

    - by Umair Ashraf
    My this PHP function converts a datetime string into more readable way to represent passed date and time. This is working perfect in PHP version 5.3.0 but on the server side it is PHP version 5.2.17 which lacks this function. Is there a way I can fix this efficiently? This is not only a function which needs this "diff" function but there are many more. public function ago($dt1) { $interval = date_create('now')->diff(date_create($dt1)); $suffix = ($interval->invert ? ' ago' : '-'); if ($v = $interval->y >= 1) return $this->pluralize($interval->y, 'year') . $suffix; if ($v = $interval->m >= 1) return $this->pluralize($interval->m, 'month') . $suffix; if ($v = $interval->d >= 1) return $this->pluralize($interval->d, 'day') . $suffix; if ($v = $interval->h >= 1) return $this->pluralize($interval->h, 'hour') . $suffix; if ($v = $interval->i >= 1) return $this->pluralize($interval->i, 'minute') . $suffix; return $this->pluralize($interval->s, 'second') . $suffix; }

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  • EF 4 Self Tracking Entities does not work as expected.

    - by ashraf
    I am using EF4 Self Tracking Entities (VS2010 Beta 2 CTP 2 plus new T4 generator). But when I try to update entity information it does not update to database as expected. I setup 2 service calls. one for GetResource(int id) which return a resource object. the second call is SaveResource(Resource res); here is the code. public Resource GetResource(int id) { using (var dc = new MyEntities()) { return dc.Resources.Where(d => d.ResourceId == id).SingleOrDefault(); } } public void SaveResource(Resource res) { using (var dc = new MyEntities()) { dc.Resources.ApplyChanges(res); dc.SaveChanges(); // Nothing save to database. } } //Windows Console Client Calls var res = service.GetResource(1); res.Description = "New Change"; // Not updating... service.SaveResource(res); // does not change anything. It seems to me that ChangeTracker.State is always show as "Unchanged". anything wrong in this code?

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  • Applications: How to create a custom dialog box for Windows Mobile 6 (native)

    - by TechTwaddle
    Ashraf, on the MSDN forum, asks, “Is there a way to make a default choice for the messagebox that happens after a period of time if the user doesn't choose (Clicked ) Yes or No buttons.” To elaborate, the requirement is to show a message box to the user with certain options to select, and if the user does not respond within a predefined time limit (say 8 seconds) then the message box must dismiss itself and select a default option. Now such a functionality is not available with the MessageBox() api, you will have to write your own custom dialog box. Surely, creating a dialog box is quite a simple task using the DialogBox() api, and we have been creating full screen dialog boxes all the while. So how will this custom message box be any different? It’s not much different from a regular dialog box except for a few changes in its properties. First, it has a title bar but no buttons on the title bar (no ‘x’ or ‘ok’ button on the title bar), it doesn’t occupy full screen and it contains the controls that you put into it, thus justifying the title ‘custom’. So in this post we create a custom dialog box with two buttons, ‘Black’ and ‘White’. The user is given 8 seconds to select one of those colours, if the user doesn’t make a selection in 8 seconds, the default option ‘Black’ is selected. Before going into the implementation here is a video of how the dialog box works; Custom dialog box To start off, add a new dialog resource into your application, size it appropriately and add whatever controls you need to the dialog. In my case, I added two static text labels and two buttons, as below; Now we need to write up the window procedure for this dialog, here is the complete function; BOOL CALLBACK CustomDialogProc(HWND hDlg, UINT uMessage, WPARAM wParam, LPARAM lParam) {     int wmID, wmEvent;     PAINTSTRUCT ps;     HDC hdc;     static int timeCount = 0;     switch(uMessage)     {         case WM_INITDIALOG:             {                 SHINITDLGINFO shidi;                 memset(&shidi, 0, sizeof(shidi));                 shidi.dwMask = SHIDIM_FLAGS;                 //shidi.dwFlags = SHIDIF_DONEBUTTON | SHIDIF_SIPDOWN | SHIDIF_SIZEDLGFULLSCREEN | SHIDIF_EMPTYMENU;                 shidi.dwFlags = SHIDIF_SIPDOWN | SHIDIF_EMPTYMENU;                 shidi.hDlg = hDlg;                 SHInitDialog(&shidi);                 SHDoneButton(hDlg, SHDB_HIDE);                 timeCount = 0;                 SetWindowText(GetDlgItem(hDlg, IDC_STATIC_TIME_REMAINING), L"Time remaining: 8 second(s)");                 SetTimer(hDlg, MY_TIMER, 1000, NULL);             }             return TRUE;         case WM_COMMAND:             {                 wmID = LOWORD(wParam);                 wmEvent = HIWORD(wParam);                 switch(wmID)                 {                     case IDC_BUTTON_BLACK:                         KillTimer(hDlg, MY_TIMER);                         EndDialog(hDlg, IDC_BUTTON_BLACK);                         break;                     case IDC_BUTTON_WHITE:                         KillTimer(hDlg, MY_TIMER);                         EndDialog(hDlg, IDC_BUTTON_WHITE);                         break;                 }             }             break;         case WM_TIMER:             {                 if (wParam == MY_TIMER)                 {                     WCHAR wszText[128];                     memset(&wszText, 0, sizeof(wszText));                     timeCount++;                     //8 seconds are over, dismiss the dialog, select def value                     if (timeCount >= 8)                     {                         KillTimer(hDlg, MY_TIMER);                         EndDialog(hDlg, IDC_BUTTON_BLACK_DEF);                     }                     wsprintf(wszText, L"Time remaining: %d second(s)", 8-timeCount);                     SetWindowText(GetDlgItem(hDlg, IDC_STATIC_TIME_REMAINING), wszText);                     UpdateWindow(GetDlgItem(hDlg, IDC_STATIC_TIME_REMAINING));                 }             }             break;         case WM_PAINT:             {                 hdc = BeginPaint(hDlg, &ps);                 EndPaint(hDlg, &ps);             }             break;     }     return FALSE; } The MSDN documentation mentions that you need to specify the flag WS_NONAVDONEBUTTON, but I got an error saying that the value could not be found, so we can ignore this for now. Next up, while calling SHInitDialog() for your custom dialog, make sure that you don’t specify SHDIF_DONEBUTTON in the dwFlags member of the SHINITDIALOG structure, this member makes the ‘ok’ button appear on the dialog title bar. Finally, we need to call SHDoneButton() with SHDB_HIDE flag to, well, hide the Done button. The ‘Done’ button is the same as the ‘ok’ button, so this step might seem redundant, and the dialog works fine without calling SHDoneButton() too, but it’s better to stick with the documentation (; So you can see that we have followed all these steps above, under WM_INITDIALOG. We also setup a few things like a variable to keep track of the time, and setting off a one second timer. Every time the timer fires, we receive a WM_TIMER message. We then update the static label displaying the amount of time left to the user. If 8 seconds go by without the user selecting any option, we kill the timer and end the dialog with IDC_BUTTON_BLACK_DEF. This is just a #define’d integer value, make sure it’s unique. You’ll see why this is important. If the user makes a selection, either Black or White, we kill the timer and end the dialog with corresponding selection the user made, that is, either IDC_BUTTON_BLACK or IDC_BUTTON_WHITE. Ok, so now our custom dialog is ready to be used. I invoke the custom dialog from a menu entry in the main windows as below, case IDM_MENU_CUSTOMDLG:     {         int ret = DialogBox(g_hInst, MAKEINTRESOURCE(IDD_CUSTOM_DIALOG), hWnd, CustomDialogProc);         switch(ret)         {             case IDC_BUTTON_BLACK_DEF:                 SetWindowText(g_hStaticSelection, L"You Selected: Black (default)");                 break;             case IDC_BUTTON_BLACK:                 SetWindowText(g_hStaticSelection, L"You Selected: Black");                 break;             case IDC_BUTTON_WHITE:                 SetWindowText(g_hStaticSelection, L"You Selected: White");                 break;         }         UpdateWindow(g_hStaticSelection);     }     break; So you see why ending the dialog with the corresponding value was important, that’s what the DialogBox() api returns with. And in the main window I update a static text label to show which option was selected. I cranked this out in about an hour, and unfortunately don’t have time for a managed C# version. That will have to be another post, if I manage to get it working that is (;

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