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  • Running a simple VBA script to test a connection

    - by brohjoe
    I'm trying to test the connection of a GoDaddy SQL Server database. I'm getting an 'invalid connection string attribute.' What's wrong with this script? Dim cnn As ADODB.Connection Dim canConnect As Boolean Public Sub TestConnection() Set cnn = New ADODB.Connection cnn.Open "Provider=sqloledb;Data Source=GoDaddyServer.com;Initial Catalog=dBase1;UserID=userID; Password='password';" If cnn.State = adStateOpen Then canConnect = True cnn.Close End If MsgBox canConnect End Sub

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  • Intercepting touch events on activity and button on Android

    - by hgpc
    I have an Android activity with an ImageButton. I would like to execute some logic when the button is clicked and show a different image for the pressed state, but also receive the touch event on the activity. By default only the button receives the touch event. If I set the clickable attribute of the button to false then only the activity receives the touch event. What's the best way to receive the touch event in both the activity and the button?

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  • Matplotlib: plotting discrete values

    - by Arkapravo
    I am trying to plot the following ! from numpy import * from pylab import * import random for x in range(1,500): y = random.randint(1,25000) print(x,y) plot(x,y) show() However, I keep getting a blank graph (?). Just to make sure that the program logic is correct I added the code print(x,y), just the confirm that (x,y) pairs are being generated. (x,y) pairs are being generated, but there is no plot, I keep getting a blank graph. Any help ?

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  • Domain Model + LINQ to SQL sample

    - by lmsasu
    Hello all, I wonder if there is an enterprise application sample, designed with Domain Model in the Business Logic layer and LINQ for the Data Mapper? I'm not so sure of how to use the UnitOfWork ability of LINQ to SQL in conjunction with business objects from the Business Layer. Thanks, Lucian

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  • Objective-C Class Question?

    - by tarnfeld
    Hey, My head is about to explode with this logic, can anyone help? Class A #imports Class B. Class A calls Method A in Class B. This works great Class B wants to send a response back to Class A from another method that is called from Method A. If you #import Class A from Class B, it is in effect an infinite loop and the whole thing crashes. Is there a way to do this properly, like a parent type thing? BTW, I'm developing for iPhone.

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  • text search with two parameters

    - by stck777
    The user should input two strings and the script will performe a text search: $sql = "SELECT * FROM table_one WHERE name='%$str1%' AND MATCH (street, city, pin) AGAINST ('$hrtg'IN BOOLEAN MODE)"; somehow the % does not work, but it alwas did actually. please help?

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  • What exception is thrown if a web service i'm using Times Out?

    - by BT
    I'm calling a .NET web service within my existing .NET webservice, i would like to know what exception is thrown from the web method if timeout happens, i have set the web service timeout to some lower value then the default 90 sec. and want to add business logic if time out happens. Is this the exception i should be looking at? System.Net.WebException

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  • Servlet unit test

    - by Thomman
    Currently I'm using TestNG framework for testing application business logic, i added some Servlet classes recently. How do I unit test these Servlet classes in TestNg framework?

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  • A SelfHosted WCF Service over Basic HTTP Binding doesn't support more than 1000 concurrent requests

    - by Krishnan
    I have self hosted a WCF Service over BasicHttpBinding consumed by an ASMX Client. I'm simulating a concurrent user load of 1200 users. The service method takes a string parameter and returns a string. The data exchanged is less than 10KB. The processing time for a request is fixed at 2 seconds by having a Thread.Sleep(2000) statement. Nothing additional. I have removed all the DB Hits / business logic. The same piece of code runs fine for 1000 concurrent users. I get the following error when I bump up the number to 1200 users. System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead) --- End of inner exception stack trace --- at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at WCF.Throttling.Client.Service.Function2(String param) This exception is often reported on DataContract mismatch and large data exchange. But never when doing a load test. I have browsed enough and have tried most of the options which include, Enabled Trace & Message log on server side. But no errors logged. To overcome Port Exhaustion MaxUserPort is set to 65535, and TcpTimedWaitDelay 30 secs. MaxConcurrent Calls is set to 600, and MaxConcurrentInstances is set to 1200. The Open, Close, Send and Receive Timeouts are set to 10 Minutes. The HTTPWebRequest KeepAlive set to false. I have not been able to nail down the issue for the past two days. Any help would be appreciated. Thank you.

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  • ggplot2 footnote

    - by user338714
    What is the best way to add a footnote to the bottom of a plot created with ggplot2? I've tried using a combination of the logic noted here http://www.r-bloggers.com/r-good-practice-%E2%80%93-adding-footnotes-to-graphics/ as well as the ggplot2 annotate function p + annotate("text",label="Footnote", x=unit(1,"npc") - unit(2, "mm"),y=unit(2, "mm"), just=c("right", "bottom"),gp=gpar(cex= 0.7, col=grey(.5))) but I am getting the error "Error in as.data.frame.default(x[[i]], optional = TRUE, stringsAsFactors = stringsAsFactors) : cannot coerce class c("unit.arithmetic", "unit") into a data.frame".

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  • Escaping Code for Different Shells

    - by Jon Purdy
    Question: What characters do I need to escape in a user-entered string to securely pass it into shells on Windows and Unix? What shell differences and version differences should be taken into account? Can I use printf "%q" somehow, and is that reliable across shells? Backstory (a.k.a. Shameless Self-Promotion): I made a little DSL, the Vision Web Template Language, which allows the user to create templates for X(HT)ML documents and fragments, then automatically fill them in with content. It's designed to separate template logic from dynamic content generation, in the same way that CSS is used to separate markup from presentation. In order to generate dynamic content, a Vision script must defer to a program written in a language that can handle the generation logic, such as Perl or Python. (Aside: using PHP is also possible, but Vision is intended to solve some of the very problems that PHP perpetuates.) In order to do this, the script makes use of the @system directive, which executes a shell command and expands to its output. (Platform-specific generation can be handled using @unix or @windows, which only expand on the proper platform.) The problem is obvious, I should think: test.htm: <!-- ... --> <form action="login.vis" method="POST"> <input type="text" name="USERNAME"/> <input type="password" name="PASSWORD"/> </form> <!-- ... --> login.vis: #!/usr/bin/vision # Think USERNAME = ";rm -f;" @system './login.pl' { USERNAME; PASSWORD } One way to safeguard against this kind of attack is to set proper permissions on scripts and directories, but Web developers may not always set things up correctly, and the naive developer should get just as much security as the experienced one. The solution, logically, is to include a @quote directive that produces a properly escaped string for the current platform. @system './login.pl' { @quote : USERNAME; @quote : PASSWORD } But what should @quote actually do? It needs to be both cross-platform and secure, and I don't want to create terrible problems with a naive implementation. Any thoughts?

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  • What would be the good name for this operation?

    - by Rogach
    I see that Scala standard library misses the method to get ranges of objects in the collection, that satisfy the predicate: def <???>(p: A => Boolean): List[List[A]] = { val buf = collection.mutable.ListBuffer[List[A]]() var elems = this.dropWhile(e => !p(e)) while (elems.nonEmpty) { buf += elems.takeWhile(p) elems = elems.dropWhile(e => !p(e)) } buf.toList } What would be the good name for such method? And is my implementation good enough?

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  • C# OOP File Structure?

    - by Soo
    Hey SO, I just started programming with objects recently and am trying to learn good habits early on. The way I plan to structure my application is to have two files: 1: Program.cs - This file will contain the main logic for the application 2: Class.cs - This file will contain all of the class definitions Pretty simple. What I'm wondering if I should have any more files for ... well, you tell me. Any help would be appreciated.

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  • ASP.NET MVC 2 AJAX dilemma: Lose Models concept or create unmanageable JavaScript

    - by Slightly Frustrated
    Hi, Ok, let's assume we are working with ASP.NET MVC 2 (latest and greatest preview) and we want to create AJAX user interface with jQuery. So what are our real options here? Option 1 - Pass Json from the Controller to the view, and then the view submits Json back to the controller. This means (in the order given): User opens some View (let's say - /Invoices/January) which has to visualize a list of data (e.g. <IEnumerable<X.Y.Z.Models.Invoice>>) Controller retrieves the Model from the repository (assuming we are using repository pattern). Controller creates a new instance of a class which we will serialize to Json. The reasaon we do this, is because the model may not be serializable (circular reference ftl) Controller populates the soon-to-be-serialized class with data Controller serializes the class to Json and passes it the view. User does some change and submits the 'form' The View submits back Json to the controller The Controller now must 'manually' validate the input, because the Json passed does not bind to a Model See, if our View is communicating to the controller via Json, we lose the Model validation, which IMHO is incredible disadvantage. In this case, forget about data annotations and stuff. Option 2 - Ok, the alternative of the first approach is to pass the Models to the Views, which is the default behavior in the template when you start a new project. We pass a strong typed model to the view The view renders the appropriate html and javascript, sticking to the model property names. This is important! The user submits the form. If we stick to the model names, when we .serialize() the form and submit it to the controller it will map to a model. There is no Json mapping. The submitted form directly binds to a strongly typed model, hence, we can use the model validation. E.g. we keep the business logic where it should be. Problem with this approach is, if we refactor some of the Models (change property names, types, etc), the javascript we wrote would become invalid. We will have to manually refactor the scripting and hope we don't miss something. There is no way you can test it either. Ok, the question is - how to write an AJAX front end, which keeps the business logic validation in the model (e.g. controller passes and receives a Model type), but in the same time doesn't screw up the javascript and html when we refactor the model?

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  • Does Java support default parameter values?

    - by gnavi
    I came across some Java code that had the following structure: public MyParameterizedFunction(String param1, int param2) { this(param1, param2, false); } public MyParameterizedFunction(String param1, int param2, boolean param3) { //use all three parameters here } I know that in C++ I can assign a parameter a default value. For example: void MyParameterizedFunction(String param1, int param2, bool param3=false); Does Java support this kind of syntax? Are there any reasons why this two step syntax is preferable?

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  • Python. How to iterate through a list of lists looking for a partial match

    - by Becca Millard
    I'm completely stuck on this, without even an idea about how to wrap my head around the logic of this. In the first half of the code, I have successfully generation a list of (thousands of) lists of players names and efficiency scores: eg name_order_list = [["Bob", "Farley", 12.345], ["Jack", "Donalds", 14.567], ["Jack", "Donalds", 13.421], ["Jack", "Donalds", 15.232],["Mike", "Patricks", 10.543]] What I'm trying to do, is come up with a way to make a list of lists of the average efficiency of each player. So in that example, Jack Donalds appears multiple times, so I'd want to recognize his name somehow and average out the efficiency scores. Then sort that new list by efficiency, rather than name. So then the outcome would be like: average_eff_list = [[12.345, "Bob", "Farley"], [14.407, "Jack", "Donalds"], [10.543, "Mike", "Patricks"]] Here's what I tried (it's kind of a mess, but should be readable): total_list = [] odd_lines = [name_order_list[i] for i in range(len(name_order_list)) if i % 2 == 0] even_lines = [name_order_list[i] for i in range(len(name_order_list)) if i % 2 == 1] i = 0 j = i-1 while i <= 10650: iteration = 2 total_eff = 0 while odd_lines[i][0:2] == even_lines[i][0:2]: if odd_lines[i][0:2] == even_lines[j][0:2]: if odd_lines[j][0:2] != even_lines[j][0:2]: total_eff = even_lines[j][2]/(iteration-1) iteration -= 1 #account fr the single (rather than dual) additional entry else: total_eff = total_eff if iteration == 2: total_eff = (odd_lines[i][2] + even_lines[i][2]) / iteration else: total_eff = ((total_eff * (iteration - 2)) + (odd_lines[i][2] + even_lines[i][2])) / iteration iteration += 2 i += 1 j += 1 if i > 10650: break else: if odd_lines[i][0:2] == even_lines[j][0:2]: if odd_lines[j][0:2] != even_lines[j][0:2]: total_eff = (odd_lines[i][2] + even_lines[j][2]) / iteration else: total_eff = ((total_eff * (iteration -2)) + odd_lines[i][2]) / (iteration - 1) if total_eff == 0: #there's no match at all total_odd = [odd_lines[i][2], odd_lines[i][0], odd_lines[i][1]] total_list.append(total_odd) if even_lines[i][0:2] != odd_lines[i+1][0:2]: total_even = [even_lines[i][2], even_lines[i][0], even_lines[i][1]] else: total = [total_eff, odd_lines[i][0], odd_lines[i][1]] total_list.append(total) i += 1 if i > 10650: break else: print(total_list) Now, this runs well enough (doesn't get stuck or print someone's name multiple times) but the efficiency values are off by a large amount, so I know that scores are getting missed somewhere. This is a problem with my logic, I think, so any help would be greatly appreciated. As would any advice about how to loop through that massive list in a smarter way, since I'm sure there is one... EIDT: for this exercise, I need to keep it all in a list format. I can make new lists, but no using dictionaries, classes, etc.

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  • why custom state won't work with compound drawable?

    - by schwiz
    Hello I am trying to make a password registration widget that will show a little checkbox in the textbox when both password boxes match. I decided to go about this by extending EditText to implement a valid and an empty state and then just use a state-list drawable to handle everything else. I followed the same method that the CompoundButton uses to add a custom state and everything seems to be right but the image will never change no matter what the state is (custom state or even state_focused etc) Is there some reason that the compound drawables of a TextView wouldn't work as a state-list drawable? Or, am I doing something wrong? Here is attrs.xml <resources> <declare-styleable name="ValidyState"> <attr name="state_valid" format="boolean"/> <attr name="state_has_text" format="boolean"/> </declare-styleable> </resources> my selector <selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res/com.schwiz.test"> <item android:drawable="@drawable/emptyspace" app:state_has_text="false"/> <item android:drawable="@drawable/ic_valid" app:state_valid="true" app:state_has_text="true"/> <item android:drawable="@drawable/ic_invalid" app:state_valid="false" app:state_has_text="true"/> </selector> and in my overridden EditText class private static final int[] VALID_STATE_SET = { R.attr.state_valid }; private static final int[] HASTEXT_STATE_SET = { R.attr.state_has_text }; ... private void refreshDrawables(){ Drawable[] drawables = getCompoundDrawables(); for(int i = 0; i < drawables.length; i++){ if(drawables[i] != null) { drawables[i].setState(getDrawableState()); } } invalidate(); } @Override protected void drawableStateChanged() { super.drawableStateChanged(); refreshDrawables(); } @Override protected int[] onCreateDrawableState(int extraSpace) { final int[] drawableState = super.onCreateDrawableState(extraSpace + 2); if(hasText){ mergeDrawableStates(drawableState, HASTEXT_STATE_SET); } if(isValid){ mergeDrawableStates(drawableState, VALID_STATE_SET); } return drawableState; }

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  • Does anyone know how to make a custom search in Bugzilla?

    - by Mugen
    I'm trying to make a search in Bugzilla which is used during our evaluation. The search basically lists how many defects were logged by each employee. Does anyone know how we can do this in Bugzilla? (The advanced search page has options for "Advanced Searching Using Boolean Charts: ". I think it could probably be using that? )

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  • SQL - Select all when filter value is empty

    - by iansinke
    I have a SQL query in my ASP.net web app that looks like this: SELECT * FROM [Records] WHERE ([title] LIKE '%' + @title + '%') @title, of course, is the value of a text box on the page. My question is, why, when the text box is empty, does this return nothing? And how can I make it return everything, like logic tells me it ought to?

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  • I want to display a Blank Gridview in asp.net

    - by Vibin Jith
    I want to display a blank Gridview Like this.By this way iant to enter the details through grid like windows app. In first a grid with blank row which is in edit mode comes and after update Next row will come. how can i do this? Any logic. I created the itemtemplates but without a data Source it does not showing nothng.

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  • Python: Converting legacy string dates to dates

    - by Eric
    We have some legacy string dates that I need to convert to actual dates that can be used to perform some date logic. Converting to a date object isn't a problem if I knew what the format were! That is, some people wrote 'dd month yy', othes 'mon d, yyyy', etc. So, I was wondering if anybody knew of a py module that attempts to guess date formats and rewrites them in a uniform way? Any other suggestions? Thanks! :) Eric

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