Search Results

Search found 59090 results on 2364 pages for 'bit question'.

Page 113/2364 | < Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >

  • codeigniter and OOP general question regarding calling functions, and the parent constuctor

    - by thrice801
    Ok so I have some gaps in my understanding of PHP OOP, classes and functions specifically, this whole constructor class deal. I use both Zend and CI but right now Im trying to figure this out in CI as it is less complicated. So all Im trying to do is understand how to call a function from a view page in code igniter. I understand that might go against MVC but Im working with an api and search results not from my database, so basically, I want to define a function in my class that I am able to call in one of my view pages.. and I keep getting "Fatal error: Call to undefined function functionname" error no matter what I try. I thought I just had to declare public function testing() { echo "testing testing 123; } but calling that from the view I get that error. Then I read something about having to go parent::Controller(); in the index of the class where the testing function also resides? But that didnt work either. Anyways, ya, can someone explain what I need to do in order to call the "testing()" function on one of my view pages? and clarification on the constructor class and what exactly parent::Controller() even does, would be much appreciated as well.

    Read the article

  • UI android question/problem with Listview

    - by user309554
    Hi, I'm trying to recreate the UI screen called 'My Places' that is used in the Weather Channel app. I'd attach a screenshot of the screen, but I can't seem to do it here. It seems they're using two listviews one on top of the other, but I'm not sure for certain. Could anybody confirm this for me? If they are doing this, how is this done? I've tried to implement this, but without full success. My top listview 'Add a place' 'comes up correctly, but the bottom listview will not appear/populate for me? I shall attach my code so far...... Any help would be greatly appreciated. Thanks Simon header_row.xml ?xml version="1.0" encoding="utf-8"? LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="6dip" android:src="@drawable/ic_menu_add" / LinearLayout android:orientation="vertical" android:layout_width="0dip" android:layout_weight="1" android:layout_height="fill_parent" TextView android:id="@+id/caption" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" android:gravity="center_vertical" android:text="Add a place"/ /LinearLayout /LinearLayout main.xml ?xml version="1.0" encoding="utf-8"? LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:padding="6dip" ListView android:id="@+id/header" android:layout_width="wrap_content" android:layout_height="wrap_content"/ LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" ListView android:id="@+id/list" android:layout_width="fill_parent" android:layout_height="wrap_content"/ /LinearLayout /LinearLayout public class ListViewTest extends Activity { private static String[] items={"lorem", "ipsum", "dolor", "sit", "amet", "consectetuer", "adipiscing", "elit", "morbi", "vel", "ligula", "vitae", "arcu", "aliquet", "mollis", "etiam", "vel", "erat", "placerat", "ante", "porttitor", "sodales", "pellentesque", "augue", "purus"}; private ListView Header; private ListView List; private ArrayList caption = null; private CaptionAdapter adapter; private ArrayAdapter listAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); caption = new ArrayList(); Caption cap = new Caption(); cap.setCaption("Add a place"); caption.add(cap); this.adapter = new CaptionAdapter(this, R.layout.header_row, caption); Header = (ListView) findViewById(R.id.header); Header.setAdapter(adapter); //Log.d("ListViewTest", "caption size is:" + caption.size()); adapter.notifyDataSetChanged(); List = (ListView) findViewById(R.id.list); listAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, items); List.setAdapter(listAdapter); listAdapter.notifyDataSetChanged(); //setListAdapter(new ArrayAdapter(this, //android.R.layout.simple_list_item_1, //items)); } private class CaptionAdapter extends ArrayAdapter { private ArrayList caption; public CaptionAdapter(Context context, int textViewResourceId, ArrayList caption) { super(context, textViewResourceId, caption); this.caption = caption; } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.header_row, null); } Caption c = caption.get(position); if (c != null) { TextView caption = (TextView) v.findViewById(R.id.caption); if (caption != null) { caption.setText(c.getCaption()); } } return v; } } }

    Read the article

  • scrapy - python question

    - by tom smith
    Hi.. Maybe not the correct place to post. But, I'm going to try anyway! I've got a couple of test python parsing scripts that I created. They work enough for me to test what I'm working on. However, I recently came across the python framework, Scrapy, which is used for web scraping. My app runs in a distributed process, across a testbed of multiple servers. I'm trying to understand scrapy, to see if it provides benefits over what I'm doing. So, if possible, I'd really like to talk with a few people who are grounded in/or who use scrapy. Thanks -tom [email protected]

    Read the article

  • question about pcap

    - by scatman
    hi, i have to do a sniffer as an assignment for the security course. i am using c and the pcap library. i got everything working well (since i got a code from the internet and changed it). but i have some questions about the code. u_int ip_len = (ih->ver_ihl & 0xf) * 4; ih is of type ip_header, and its currently pointing the to ip header in the packet. ver_ihl gives the version of the ip i can't figure out what is: & 0xf) * 4; any help?

    Read the article

  • Blackberry - Listfield layout question

    - by Kai
    I'm having an interesting anomaly when displaying a listfield on the blackberry simulator: The top item is the height of a single line of text (about 12 pixels) while the rest are fine. Does anyone know why only the top item is being drawn this way? Also, when I add an empty venue in position 0, it still displays the first actual venue this way (item in position 1). Not sure what to do. Thanks for any help. The layout looks like this: ----------------------------------- | *part of image* | title | ----------------------------------- | | title | | * full image * | address | | | city, zip | ----------------------------------- The object is called like so: listField = new ListField( venueList.size() ); listField.setCallback( this ); listField.setSelectedIndex(-1); _middle.add( listField ); Here is the drawListRow code: public void drawListRow( ListField listField, Graphics graphics, int index, int y, int width ) { listField.setRowHeight(90); Hashtable item = (Hashtable) venueList.elementAt( index ); String venue_name = (String) item.get("name"); String image_url = (String) item.get("image_url"); String address = (String) item.get("address"); String city = (String) item.get("city"); String zip = (String) item.get("zip"); EncodedImage img = null; try { String filename = image_url.substring(image_url.indexOf("crop/") + 5, image_url.length() ); FileConnection fconn = (FileConnection)Connector.open( "file:///SDCard/Blackberry/project1/" + filename, Connector.READ); if ( !fconn.exists() ) { } else { InputStream input = fconn.openInputStream(); byte[] data = new byte[(int)fconn.fileSize()]; input.read(data); input.close(); if(data.length > 0) { EncodedImage rawimg = EncodedImage.createEncodedImage( data, 0, data.length); int dw = Fixed32.toFP(Display.getWidth()); int iw = Fixed32.toFP(rawimg.getWidth()); int sf = Fixed32.div(iw, dw); img = rawimg.scaleImage32(sf * 4, sf * 4); } else { } } } catch(IOException ef) { } graphics.drawText( venue_name, 140, y, 0, width ); graphics.drawText( address, 140, y + 15, 0, width ); graphics.drawText( city + ", " + zip, 140, y + 30, 0, width ); if(img != null) { graphics.drawImage(0, y, img.getWidth(), img.getHeight(), img, 0, 0, 0); } }

    Read the article

  • python urllib post question

    - by paul
    hello ALL im making some simple python post script but it not working well. there is 2 part to have to login. first login is using 'http://mybuddy.buddybuddy.co.kr/userinfo/UserInfo.asp' this one. and second login is using 'http://user.buddybuddy.co.kr/usercheck/UserCheckPWExec.asp' i can login first login page, but i couldn't login second page website. and return some error 'illegal access' such like . i heard this is related with some cooke but i don't know how to implement to resolve this problem. if anyone can help me much appreciated!! Thanks! import re,sys,os,mechanize,urllib,time import datetime,socket params = urllib.urlencode({'ID':'ph896011', 'PWD':'pk1089' }) rq = mechanize.Request("http://mybuddy.buddybuddy.co.kr/userinfo/UserInfo.asp", params) rs = mechanize.urlopen(rq) data = rs.read() logged_fail = r';history.back();</script>' in data if not logged_fail: print 'login success' try: params = urllib.urlencode({'PASSWORD':'pk1089'}) rq = mechanize.Request("http://user.buddybuddy.co.kr/usercheck/UserCheckPWExec.asp", params ) rs = mechanize.urlopen(rq) data = rs.read() print data except: print 'error'

    Read the article

  • Big and Little endian question

    - by Bobby
    I have the following code: // Incrementer datastores.cmtDatastores.u32Region[0] += 1; // Decrementer datastores.cmtDatastores.u32Region[1] = (datastores.cmtDatastores.u32Region[1] == 0) ? 10 : datastores.cmtDatastores.u32Region[1] - 1; // Toggler datastores.cmtDatastores.u32Region[2] = (datastores.cmtDatastores.u32Region[2] == 0x0000) ? 0xFFFF : 0x0000; The u32Region array is an unsigned int array that is part of a struct. Later in the code I convert this array to Big endian format: unsigned long *swapL = (unsigned long*)&datastores.cmtDatastores.u32Region[50]; for (int i=0;i<50;i++) { swapL[i] = _byteswap_ulong(swapL[i]); } This entire code snippet is part of a loop that repeats indefinitely. It is a contrived program that increments one element, decrements another and toggles a third element. The array is then sent via TCP to another machine that unpacks this data. The first loop works fine. After that, since the data is in big endian format, when I "increment", "decrement", and "toggle", the values are incorrect. Obviously, if in the first loop datastores.cmtDatastores.u32Region[0] += 1; results in 1, the second loop it should be 2, but it's not. It is adding the number 1(little endian) to the number in datastores.cmtDatastores.u32Region[0](big endian). I guess I have to revert back to little endian at the start of every loop, but it appears there should be an easier way to do this. Any thoughts? Thanks, Bobby

    Read the article

  • Question with R. Element wise multiplication, addition, and division with 2 data.frames with varying

    - by Michael
    I have a various data.frames with columns of the same length where I am trying to multiple 2 rows together element-wise and then sum this up. For example, below are two vectors I would like to perform this operation with. > a.1[186,] q01_a q01_b q01_c q01_d q01_e q01_f q01_g q01_h q01_i q01_j q01_k q01_l q01_m 3 3 3 3 2 2 2 3 1 NA NA 2 2 and > u.1[186,] q04_avl_a q04_avl_b q04_avl_c q04_avl_d q04_avl_e q04_avl_f q04_avl_g q04_avl_h q04_avl_i q04_avl_j q04_avl_k q04_avl_l q04_avl_m 4 2 3 4 3 4 4 4 3 4 3 3 3` The issue is that various rows have varying numbers of NA's. What I would like to do is skip the multiplication with any missing values ( the 10th and 11th position from my above example), and then after the addition divide by the number of elements that were multiplied (11 from the above example). Most rows are complete and would just be multiplied by 13. Thank you!

    Read the article

  • Lock Question - 'U' lock vs. 'X' lock

    - by Randy Minder
    I have a couple questions concerning Update (U) locks and Exclusive (X) locks. 1) Am I correct that an 'X' lock is put on a resource when the resource is about to get updated? 2) I'm a little fuzzy on U locks. Am I correct that a U lock is applied when a resource is read and SQL Server thinks it might need to update the resource later? If this is correct, would a 'U' lock only get applied when a read is being done within the context of a transaction? I guess I'm trying to understand under what circumstances SQL Server thinks it might need to update later a row it just read now. Thanks - Randy

    Read the article

  • Design question for WinForms (C#) app, using Entity Framework

    - by cdotlister
    I am planning on writing a small home budget application for myself, as a learning excercise. I have built my database (SQL Server), and written a small console application to interact with it, and test out scenarios on my database. Once I am happy, my next step would be to start building the application - but I am already wondering what the best/standard design would be. I am palnning on using Entity Framework for handling my database entities... then linq to sql/objects for getting the data, all running under a WinForms (for now) application. My plan (I've never used EF... and most of my development background is Web apps) is to have my database... with Entity Framework in it's own project.. which has the connection to the database. This project would expose methods such as 'GetAccount()', 'GetAccount(int accountId)' etc. I'd then have a service project that references my EF project. And on top of that, my GUI project, which makes the calls to my service project. But I am stuck. Lets say I have a screen that displays a list of Account types (Debit, Credit, Loan...). Once I have selected one, the next drop down shows a list of accounts I have that suite that account type. So, my OnChange event on my DropDown on the account type control will make a call to the serviceLayer project, 'GetAccountTypes()', and I would expect back a List< of Account Types. However, the AccountType object ... what is that? That can't be the AccountType object from my EF project, as my GUI project doesn't have reference to it. Would I have to have some sort of Shared Library, shared between my GUI and my Service project, with a custom built AccountType object? The GUI can then expect back a list of these. So my service layer would have a method: public List<AccountType> GetAccountTypes() That would then make a call to a custom method in my EF project, which would probably be the same as the above method, except, it returns an list of EF.Data.AccountType (The Entity Framework generated Account Type object). The method would then have the linq code to get the data as I want it. Then my service layer will get that object, and transform it unto my custom AccountType object, and return it to the GUI. Does that sound at all like a good plan?

    Read the article

  • Rails Associations Question

    - by Mutuelinvestor
    I'm new to rails and have volunteered to help out the local High School Track team with a simple database that tracks the runners performances. For the moment, I have three models: Runners, Race_Data and Races. I have the following associations. Runners have_many Race_Data Races have_many Race_Data I also want create the association Runners Have_Many Races Through Race_Data, but as my look at the diagram I have drawn, there is already a many to one relationship from Race_data to Races. Does the combination of Runners having many Race_Data and Race_Data having one Race imply a Many_to_Many relationship between Runners and Races?

    Read the article

  • Android, simply view question about view reset

    - by javano
    I have a button in my activity, when you click the button an if statement is ran against its text label; if(BTN_1.getText()=="firsttext"){ //do some stuff, then... BTN_1.setText("secondtext"); }else if(BTN_1.getText()=="secondtext"){ //do other stuff, then... BTN_1.setText("firsttext"); } Firstly, if I hit the home button and go back to the desktop and then click back onto my app the view has reset its self; if I press the button and leave it in a state where the text of the button is "secondtext", when I return to my app it says "firsttext", how can I stop the view of my app refreshing its self like this? Secondly, under my XML layout I have defined the buttons text; android:text="firsttext" But this won't actually match my if statement above, under onCreate of this app I have: BTN_CONNECT.setText("Connect"); But visually the text of the button is exactly the same, why won't it match? Thanks for reading :)

    Read the article

  • netlogo programming question - catalyst implementation part 2

    - by user286190
    hi the catalyst speeds up the reaction but remains unchanged after the reaction has taken place i tried the following code breed [catalysts catalyst] breed [chemical-x chemical-x] ;then the forward reaction is sped up by the existence of catalysts to react-forward let num-catalysts count catalysts ;speed up by num-catalysts ;... end and it works fine but I want to make it so that the catalyst can be switched on and off with the 'switch' button ..so one can see the effects with and without the catalyst..i tried putting a switch in but catalyst has already been defined Also i want to make the catalyst visible so one can see it in the actual implementation (in the world) like making it a turtle is there are another way to implement this apart from using breeds i tried making the catalyst a turtle but it doesnt work ; Make catalyst visible in implementation clear-all crt catalysts 100 ask catalysts [ set color white ] show [breed] of one-of catalysts ; prints catalysts any help will be greatly appreciated thank you

    Read the article

  • Simple Program Question (TI-84 calculator)

    - by John
    I wrote a program (on my TI-84 calculator) to satisfy the following exercise: Write a program that will print all solutions of the inequality ax + b < c, where a, b, and c are entered by the user. In this program the domain of x will be a set of consecutive integers, where the smallest and largest members of the set will also be entered by the user. (Hint: Use a FOR . . . NEXT loop to test each integer from smallest to largest.) This is the code I have: :Input "A=",A :Input "B=",B :Input "C=",C :Disp "DOMAIN FOR X" :Input "MIN=",D :Input "MAX=",E :For(X,D,E,1) :If AX+B<C :Disp X :End I sort of figured it out by chance; I don't really know how 'If' works inside 'For.' I wanted to have it tell me if there is no solution, though, so I tried: :Input "A=",A :Input "B=",B :Input "C=",C :Disp "DOMAIN FOR X" :Input "MIN=",D :Input "MAX=",E :For(X,D,E,1) :If AX+B<C :Then :Disp X :Else :Disp "NO SOLUTION" :End But this returns the value for "MIN=" Why is this? Can anyone help me understand these work?

    Read the article

  • WPF -- Event Threading, GUI updating question

    - by LSTayon
    I'm trying to send two events to the main window so that I can show some kind of animation that will let the user know that I'm updating the data. This is an ObservableCollection object so the OnPropertyChanged is immediately picked up by the bindings on the main window. The sleep is only in there so that the user can see the animation. However, the first OnPropetyChanged is never seen. I'm assuming this is because we're in a single thread here and the timer_Tick has to finish before the GUI updates. Any suggetions? In VB6 land we would use a DoEvents or a Form.Refresh. Thanks! private void timer_Tick(object sender, EventArgs e) { Loading = "Before: " + DateTime.Now.ToString(); OnPropertyChanged("Loading"); LoadData(); Thread.Sleep(1000); //Loading = Visibility.Hidden; Loading = "After: " + DateTime.Now.ToString(); OnPropertyChanged("Loading"); }

    Read the article

  • Model Binding, a simple, simple question

    - by Paul Hatcherian
    I have a struct which works much like the System.Nullable type: public struct SpecialProperty<T> { public static implicit operator T(SpecialProperty<T> value) { return value.Value; } public static implicit operator SpecialProperty<T>(T value) { return new TrackChanges<T> { Value = value }; } T internalValue; public T Value { get { return internalValue; } set { internalValue = value; } } public override bool Equals(object other) { return Value.Equals(other); } public override int GetHashCode() { return Value.GetHashCode(); } public override string ToString() { return Value.ToString(); } } I'm trying to use it with ASP.NET MVC binding. Using the default customer model binder the property will always yield null. I can fix this by adding ".Value" to the end of every form input name, but I just want it to bind to the new type directly using some sort of custom model binder, but all the solutions I've tried seemed needlessly complex. I feel like I should be able to extend the default binder and with a few lines of code redirect the property binding to the entire model using implicit conversion. I don't quite get the binding paradigm of the default binder, but it seems really stuck on this distinction between the model and model properties. What is the simplest method to do this? Thanks!

    Read the article

  • OpenNETCF Signature control question

    - by Vaccano
    I am using the Signature control in OpenNETCF. It works great for most everything I need. However, I need a way invert the signature and load it back in. It has a call to get the "bytes" for the signature (GetSignatureEx()). It returns a byte[] of the signature. This signature can then be loaded back in with LoadSignatureEx(). I can't seem to figure out the system for these bytes. I thought they may be coordinates, but it does not seem so now. If anyone out there knows a way to invert the signature and load it back in, I would be grateful to hear it.

    Read the article

  • Django and Reportlab Question

    - by Hellnar
    Hello, I have written this small Django view to return pdf. @login_required def code_view(request,myid): try: deal = Deal.objects.get(id=myid) except: raise Http404 header = deal.header code = deal.code response = HttpResponse(mimetype='application/pdf') response['Content-Disposition'] = 'attachment; filename=code.pdf' p = canvas.Canvas(response) p.drawString(10, 800, header) p.drawString(10, 700, code) p.showPage() p.save() return response And my questions: Utf-8 characters are not shown correctly within the pdf. How can I include an image ? How can I include a very basic html such as: . <ul> <li>List One</li> <li>List Two</li> <li>List Three</li> </ul>

    Read the article

  • java immutable object question

    - by cometta
    String abc[]={"abc"}; String def[]={}; def=abc; def[0]=def[0]+"changed"; System.out.println(abc[0]); by changing "def" object, my abc object is changed as well. Beside String[] array has this characteristic what other java object has similar characteristic? can explain more? in order to prevent abc from changed when i changed def, i will have to do def = abc.clone();

    Read the article

  • Bitwise AND, Bitwise Inclusive OR question, in Java

    - by Dave
    I've a few lines of code within a project, that I can't see the value of... buffer[i] = (currentByte & 0x7F) | (currentByte & 0x80); It reads the filebuffer from a file, stored as bytes, and then transfers then to buffer[i] as shown, but I can't understand what the overall purpose is, any ideas? Thanks

    Read the article

  • Basic image processing question

    - by indoman
    Can you enlarge a feature so that rather than take up a certain number of pixels it actually takes up one or two times that many to make it easier to analyze? Would there be a way to generalize that in MATLAB?

    Read the article

  • A Question about .net Rfc2898DeriveBytes class?

    - by IbrarMumtaz
    What is the difference in this class? as posed to just using Encoding.ASCII.GetBytes(string object); I have had relative success with either approach, the former is a more long winded approach where as the latter is simple and to the point. Both seem to allow you to do the same thing eventually but I am struggling to the see the point in using the former over the latter. The basic concept I have been able to grasp is that you can convert string passwords into byte arrays to be used for e.g a symmetric encryption class, AesManaged. Via the RFC class but you get to use SaltValues and password when creating your rfc object. I assume its more secure but still thats an uneducated guess at best ! Also that it allows you to return byte arrays of a certain size, well something like that. heres a few examples to show you where I am coming from? byte[] myPassinBytes = Encoding.ASCII.GetBytes("some password"); or string password = "P@%5w0r]>"; byte[] saltArray = Encoding.ASCII.GetBytes("this is my salt"); Rfc2898DeriveBytes rfcKey = new Rfc2898DeriveBytes(password, saltArray); The 'rfcKey' object can now be used towards setting up the the .Key or .IV properties on a Symmetric Encryption Algorithm class. ie. RijndaelManaged rj = new RijndaelManaged (); rj.Key = rfcKey.Getbytes(rj.KeySize / 8); rj.IV = rfcKey.Getbytes(rj.Blocksize / 8); 'rj' should be ready to go ! The confusing part ... so rather than using the 'rfcKey' object can I not just use my 'myPassInBytes' array to help set-up my 'rj' object???? I have tried doing this in VS2008 and the immediate answer is NO ! but have you guys got a better educated answer as to why the RFC class is used over the other alternative I have mentioned above and why????

    Read the article

  • ActiveRecord Associations Question

    - by Mutuelinvestor
    I'm new to rails and have volunteered to help out the local High School Track team with a simple database that tracks the runners performances. For the moment, I have three models: Runners, Race_Data and Races. I have the following associations. Runners have_many Race_Data Races have_many Race_Data I also want create the association Runners Have_Many Races Through Race_Data, but as my look at the diagram I have drawn, there is already a many to one relationship from Race_data to Races. Does the combination of Runners having many Race_Data and Race_Data having one Race imply a Many_to_Many relationship between Runners and Races?

    Read the article

  • Python iterator question

    - by hdx
    I have this list: names = ['john','Jonh','james','James','Jardel'] I want loop over the list and handle consecutive names with a case insensitive match in the same iteration. So in the first iteration I would do something with'john' and 'John' and I want the next iteration to start at 'james'. I can't think of a way to do this using Python's for loop, any suggestions?

    Read the article

< Previous Page | 109 110 111 112 113 114 115 116 117 118 119 120  | Next Page >