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  • Why can I not use a "constant" within a switch statement within scope?

    - by Clay Shannon
    With this code: public partial class Form1 : Form { private static readonly int TABCONTROL_BASICINFO = 0; private static readonly int TABCONTROL_CONFIDENTIALINFO = 1; private static readonly int TABCONTROL_ROLESANDSECURITY = 2; private static readonly int TABCONTROL_INACTIVEINFO = 3; . . . int ActiveTabPage = tabControlWorker.SelectedIndex; switch (ActiveTabPage) { case TABCONTROL_BASICINFO: if (currentNode == "NodeBuckingham") { } else if (currentNode == "NodeNamath") { } else if (currentNode == "NodeParsons") { } else { } break; ...I have to replace "TABCONTROL_BASICINFO" with "0", or I get, "A constant value is expected" Heavens to Murgatroyd! Can't it look up and see that TABCONTROL_BASICINFO is 0?

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  • C# Changing Objects within a List

    - by kwong22
    Hi, I'm having a little problem changing members of an object in a list using a found index. So this is the method I am currently working with: static void addToInventory(ref List<baseItem> myArray, baseItem item, float maxAmount, ref float currentAmount) { if (currentAmount + item.getWeight() <= maxAmount) { Console.WriteLine("item.Quantity = {0}", item.Quantity); if (myArray.Contains(item)) { Console.WriteLine("Item ({0}) already exists", item.Name); int id = myArray.IndexOf(item); myArray[id].Quantity += item.Quantity;//Change occurs in this line, item.Quantity becomes the same as myArray[id].Quantity } else { Console.WriteLine("Adding new item ({0})", item.Name); myArray.Add(item); } currentAmount += item.getWeight(); } else { Console.WriteLine("Inventory full"); } myArray.Sort(); } This method takes several parameters including the inventory/list. I check if the item fits in and if it does, I see if there is another item of the same name in the list, find the index, and add more of the item. However, the quantity of the item added suddenly becomes the same as the quantity of the item in the list. For some reason, this also changes the quantity of the item outside of the list. So therefore, instead of quantities adding up like this: 1, 2, 3, 4, they add up like this: 1, 2, 4, 8. I've just started to learn how to use lists so if there is anything I'm missing, don't hesitate to criticize. Thanks in advance.

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  • The links within posts should open a tab [closed]

    - by XGreen
    I couldn't find a place to feedback about this so apologies if I shouldn't have post this as a question here. Would it be possible for the admins of the site to change the links we post in our answers to have their target as _blank. It is quite hard when it is _self as we look at those urls in correlation with what the post is about so I wouldn't want it to replace the post.

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  • Continuing JavaScript "classes" - enums within

    - by espais
    From a previous question, I have the following: So I have implemented a resource class, now I'd like to continue extending it and add all my constants and enums (or as far as JS will allow...). This is what I currently have: var resources = { // images player : new c_resource("res/player.png"), enemies : new c_resource("res/enemies.png"), tilemap : new c_resource("res/tilemap.png") }; And this is what I would like to continue to extend it to: var resources = { // images player : new c_resource("res/player.png"), enemies : new c_resource("res/enemies.png"), tilemap : new c_resource("res/tilemap.png"), // enums directions : {up:0, right:1, down:2, left:3}, speeds : {slow: 1, medium: 3, fast: 5} }; ... function enemies() { this.dir = resources.directions.down; // initialize to down } When I attempt to access resources.directions.up, my JS script goes down in a flaming pile of burning code. Are enums allowed in this context, and if not, how can I properly insert them to be used outside of a normal function? I have also tried defining them as global to a similar effect. edits: fixed the comma...that was just an error in transcribing it. When I run it in Firefox and watch the console, I get an error that says resources is undefined. The resources 'class' is defined at the top of my script, and function enemies() directly follows...so from what I understand it should still be in scope...

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  • Grab triangles within a lower triangle

    - by Tyler Rinker
    I have the need to grab all the thee element triangles that make up the lower triangle of a symmetric matrix. I can not think of how to grab all these pieces in the order of far left column working down and then next column to the right and so on. I know that the numbe rof mini triangles inside of the lower triangle is: n = x(x - 1)/2 where: x = nrow(mats[[i]]) Here I've created three matrices with letters (it's easier for me to conceptualize this way) and the elements in the order I'm looking for: FUN <- function(n) { matrix(LETTERS[1:(n*n)], n) } mats <- lapply(3:5, FUN) So this is the output I'd like to get (I put it in code rather than output format) for each of the matrices created above: list(c("B", "C", "F")) list(c("B", "C", "G"), c("C", "D", "H"), c("G", "H", "L")) list(c("B", "C", "H"), c("C", "D", "I"), c("D", "E", "J"), c("H", "I", "N"), c("I", "J", "O"), c("N", "O", "T")) How can I do this task in the fastest manner possible while staying in base R? Not sure if this visual of what I'm after is helpful but it may be:

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  • SQL for total count and count within that where condition is true

    - by twmulloy
    Hello, I have a single user table and I'm trying to come up with a query that returns the total count of all users grouped by date along with the total count of users grouped by date who are of a specific client. Here is what I have thus far, where there's the total count of users grouped by date, but can't seem to figure out how to get the count of those users where user.client_id = x SELECT user.created, COUNT(user.id) AS overall_count FROM user GROUP BY DATE(user.created) trying for a row result like this: [created] => 2010-05-15 19:59:30 [overall_count] => 10 [client_count] => (some fraction of overall count, the number of users where user.client_id = x grouped by date)

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  • How to get all Div within a table using javascript

    - by Rajesh Rolen- DotNet Developer
    please tell me how can i get array of all Those DIV of specific table whose LANG="1" using javascript table structure is like this: < table > < tr > < td > < div id=1 lang="1" > some metter < /div > < /td >< /tr > < tr > < td > < div id=2 lang="2" > some metter < /div > < /td >< /tr > < tr > < td > < div id=3 lang="1" > some metter < /div > < /td >< /tr > < tr > < td > < div id=4 lang="1" > some metter < /div > < /td >< /tr > < /table >

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  • rails code within javascript

    - by Jesse
    I am trying to use some rails code withing a javascript and need to have that rails code be dynamically changed. Here's the line of code: $(this).replaceWith("<%= escape_javascript(render(:partial => 'shared/products')) %>"); The 'shared/products' is the part I want to change based off information passed earlier in the javascript. How do I insert a value from javascript so that instead of 'shared/products' the products portion can be a variable? Hope this makes sense. I'm not the most experienced jQuery/javascript programmer, so any help is very much appreciated. Thanks in advance!

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  • Best practice accessing an array set within a class

    - by user350599
    I have created a basic class for a customer. I haven't done this before and want to know the best way to access the data. Should I have a get() method for every field in the customer array or should I simply pass the customer array back and access with the page. i.e. Just return the array class Customer { protected $id; protected $customer; public function __construct($customer_id) { $this->id = $customer_id; $this->set_customer(); } protected function set_customer() { $query = mysql_query("SELECT * FROM customer WHERE id = '$this->id'"); $this->customer = mysql_fetch_row($query); } public function get_customer() { return $this->customer; } } versus create a method for each item in the array class Customer { protected $id; protected $customer; public function __construct($customer_id) { $this->id = $customer_id; $this->set_customer(); } protected function set_customer() { $query = mysql_query("SELECT * FROM customer WHERE id = '$this->id'"); $this->customer = mysql_fetch_row($query); } public function get_customer_name() { return $this->customer->customer_name; } ... ... } versus option 3 based on Tobias' feedback: (not sure if syntax is correct) class Customer { protected $id; protected $customer; public function __construct($customer_id) { $this->id = $customer_id; return $this->set_customer(); } protected function set_customer() { $query = mysql_query("SELECT * FROM customer WHERE id = '$this->id'"); return mysql_fetch_row($query); } }

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  • Why are controls within custom panel (C# winforms) disappearing in designer?

    - by Brandon
    I have been able to create a custom C# winforms control that is basically a panel with a fixed banner (header/footer). I want to base other user controls on this "banner panel". I've gotten past the problem with the designer here. I can successfully add controls to the inner content panel. Everything looks fine while designing. However, when I recompile, the controls I added to the content panel disappear. They are still there (in code) but aren't displayed in the designer. Is there any thing that I need to do to set the drawing order of the controls?

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  • Adding google.maps.latlng within a loop

    - by Mick Morrison
    I am new to Java Script. I am using it, in combination with Java Server Faces. I want to add some points to define a Polilyne using GoogleMaps Apiv3. My problem is that I can't add a FOR statement to the javascript, because it dumps. If I comment this FOR loop, it also dumps. The dump I am getting is: "javax.servlet.ServletException: null source". Has anyone any suggestion to solve this? Thanks in advance, Emanuel <script type="text/javascript"> function initialize() { var longit = "${dateRange.longitude}" ; var lat = "${dateRange.latitude}" ; var latlng = new google.maps.LatLng(lat, longit); var myOptions = { zoom: 15, center: latlng, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); var points = []; var cadena1 = "${dateRange.latArray}" ; var cadena2 = "${dateRange.longArray}" ; var latArray = cadena1.split('?'); var longArray = cadena2.split('?'); /* The code Below is the one that fails */ for (var i=0; i < latArray.length; i++) { points.push(new google.maps.LatLng(latArray[i], longArray[i])); } /* Finish of the error code */ // The Polilyne is created var mapPath = new google.maps.Polyline ({ path: points, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 4 }); mapPath.setMap(map); } </script> </head> <body onload="initialize()"> <h:graphicImage url="http://localhost:8080/gps_tracking/faces/resources/images/logo.jpg"> </h:graphicImage> <h1 align="center">Sol-Tech</h1><br /> <hr></hr> <div id="map_canvas" style="width:100%; height:100%"></div> </body>

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  • Whats the best way to send multiple variables in a query string within a URL

    - by Andy
    I have a client who is wanting to create a link which contains product codes so that his customers hit a page with just those products displayed in an attempt to increase conversion rates from affilliate sites. My question is whats the best way to send these multiple products in a single URL For example: http://www.mydomain.co.uk/bespoke-list.php?catNo=234-324-232-343 Obviously then the site would grab the codes from the string and display them... We're going to be using PHP! Thanks in advance.

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  • Updating an image's ImageUrl within a Repeater

    - by Django Reinhardt
    I hope someone can help me. It's a pretty newbie question, I'm afraid. I have an image inside a repeater, and I would like to change its IMAGEURL based on parameter that's being passed to it. <asp:Repeater ID="Repeater" runat="server"> <HeaderTemplate> <asp:Image ID="imgType" runat="server" /> </HeaderTemplate> <ItemTemplate> <%# Eval("DisplayName")%> </ItemTemplate> <SeparatorTemplate> <hr /> </SeparatorTemplate> </asp:Repeater> There is a SWITCH statement in the code behind that is altering the IMAGEURL depending on what's being passed to it. Inevitably, however, the images ID ("imgType") is not visible to the SWITCH statement (presumably because it's inside a REPEATER). Any suggestions on the best way to implement this would be greatly appreciated. Sorry for such a newbie question.

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  • Google search from within an iPhone app

    - by Chonch
    Hey, I want to have the user enter a keyword in my app and then search google for this keyword, perform some logic on the results and display a final conclusion to the user. Is this possible? How do I perform the search on google from my app? What is the format of the reply? If anybody has some code samples for this, they would be greatly appreciated. Thanks,

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  • Copying web part pages within SharePoint

    - by Jasper
    Hi, I'm trying to copy some web part pages (aspx) from one library into another. Reason is that I've got sites which are created dynamiccally. I also want to add some content (based on several rules) to those sites, which include aspx web part pages. The deployment works fine, but the web part pages are empty in the target site. As I've read in several blog posts, this has something to do with the ghosting of the files. Is there a way to literally copy all of the content in the ASPX to the site? The webparts aren't site or feature dependant, so the pages should work on every site. When I copy the pages with SPD, it works fine, but I don't understand how SPD does this.

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  • Prevent Carousel scroll within scrollable Container (Sencha 2)?

    - by TragedyStruck
    I've got a Container with a header, content (Carousel) and a footer. The Container itself is therefor scrollable (vertical) to be able to scroll down to the footer. The Carousel can be swiped horizontally to change active item. I want to lock it to do only two thing: If starting to move vertically, only scroll Container If starting to move horizontally, only scroll Carousel If you now grab the Carousel you are able to scroll both ways at the same time. Example code: Ext.define('MyApp.view.MyContainer', { extend: 'Ext.Container', config: { scrollable: true, items: [ { xtype: 'container', items: [ { xtype: 'label', html: 'abc' } ] }, { xtype: 'carousel', height: 200, scrollable: false, items: [ { xtype: 'label', html: 'x' }, { xtype: 'label', html: 'y<br/>y<br/>y<br/>y<br/>y<br/>y<br/>y<br/>y' } ] }, { xtype: 'container', items: [ { xtype: 'label', html: 'def' } ] } ] } }); Using Sencha Touch 2.

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  • Dynamic evaluation of a table column within an insert before trigger

    - by Tim Garver
    HI All, I have 3 tables, main, types and linked. main has an id column and 32 type columns. types has id, type linked has id, main_id, type_id I want to create an insert before trigger on the main table. It needs to compare its 32 type columns to the values in the types table if the main table column has an 'X' for its value and insert the main_id and types_id into the linked table. i have done a lot of searching, and it looks like a prepared statement would be the way to go, but i wanted to ask the experts. The issue, is i dont want to write 32 IF statements, and even if i did, i need to query the types table to get the ID for that type, seems like a huge waist of resources. Ideally i want to do this inside of my trigger: BEGIN DECLARE @types results_set -- (not sure if this is a valid type); -- (iam sure my loop syntax is all wrong here)... SET @types = (select * from types) for i=0;i<types.records;i++ { IF NEW.[i.type] = 'X' THEN insert into linked (main_id,type_id) values (new.ID, i.id); END IF; } END; Anyway, This is what i was hoping to do, maybe there is a way to dynamically set the field name inside of a results loop, but i cant find a good example of this. Thanks in advance Tim

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  • Sharing variable within different javascript file at client side

    - by Aman
    I was actually going through this link. which explains how we can share global variable across multiple js. but the point is what need to be done if I am getting some variable into one js and need to pass to another one mentioned in same document after the 1st one. approach which followed was: Script 1 <script type="text/javascript" src="js/client.js"></script> body added some hidden input with id myHiddenId, where values are set using client.js Script 2 <script type="text/javascript" src="js/anotherJS.js"></script> inside script 2 I am simply using $("#myHiddenId").val(); and using for my purpose. I want to know whether I am following correct approach, because that hidden field may have some data which client should not get aware of. is there any other way through which I can pass the variable values across the js files ? Since I am at beginner level hence digging up some resources/books but still no luck.

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  • Performing multiple fetches in Core Data within the same view

    - by yesimarobot
    I have my CD store setup and everything is working. Once my initial fetch is performed, I need to perform several fetches based on calculations using the data from my first fetch. The examples provided from Apple are great, and helped me get everything going but I'm struggling with executing successive fetches. Any suggestions, or tutorial links are appreciated. Table View loads data from CD store. When a user taps a row it pushes a detail view The detail view loads details from CD. [THE ABOVE STEPS ARE ALL WORKING] I perform several calculations on the data fetched in the detail view. I need to then perform several other fetches based on the results of my calculations.

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  • Handling right-click within a MenuItem

    - by tylerl
    Is it possible to check for a right-click on a menu item in .NET? It appears that the framework doesn't expose it as an Event, but I've seen other applications (like Chrome and Firefox) which allow you to bring up a right-click context menu for a menu item. Presumably with a little event-loop magic you can do the same thing in .NET, right?

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  • Transaction within transaction

    - by user281521
    Hello, I want to know if open a transaction inside another is safe and encouraged? I have a method: def foo(): session.begin try: stuffs except Exception, e: session.rollback() raise e session.commit() and a method that calls the first one, inside a transaction: def bar(): stuffs try: foo() #<<<< there it is :) stuffs except Exception, e: session.rollback() raise e session.commit() if I get and exception on the foo method, all the operations will be rolled back? and everything else will work just fine? thanks!!

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  • Attaching methods to prototype from within constructor function

    - by Matthew Taylor
    Here is the textbook standard way of describing a 'class' or constructor function in JavaScript, straight from the Definitive Guide to JavaScript: function Rectangle(w,h) { this.width = w; this.height = h; } Rectangle.prototype.area = function() { return this.width * this.height; }; I don't like the dangling prototype manipulation here, so I was trying to think of a way to encapsulate the function definition for area inside the constructor. I came up with this, which I did not expect to work: function Rectangle(w,h) { this.width = w; this.height = h; this.constructor.prototype.area = function() { return this.width * this.height; }; } I didn't expect this to work because the this reference inside the area function should be pointing to the area function itself, so I wouldn't have access to width and height from this. But it turns out I do! var rect = new Rectangle(2,3); var area = rect.area(); // great scott! it is 6 Some further testing confirmed that the this reference inside the area function actually was a reference to the object under construction, not the area function itself. function Rectangle(w,h) { this.width = w; this.height = h; var me = this; this.constructor.prototype.whatever = function() { if (this === me) { alert ('this is not what you think');} }; } Turns out the alert pops up, and this is exactly the object under construction. So what is going on here? Why is this not the this I expect it to be?

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  • How to scan and count controls present in DataAccessPage of Access DataBase programmatically?

    - by Suman
    As per my application (Vb.net), it scans the Access database for Active-X controls. It is working now for Report form and Access Form. The code to find out controls is as follows: oReportCtls = oReport.Controls For Each oReportCtl In oReportCtls If oReportCtl.ControlType = 119 Then 'Activex Control' intReportObjectCount = intReportObjectCount + 1 End If Next But for DataAccessPages I am not getting any reference for Controls. Need Help: Please let me know it is possible or not? If yes, then please provide me some reference or example. Many Many Thanks, Sugam

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  • Need to try and count repeated lists within a list

    - by user1828603
    Im trying to count how many repeated lists there are inside a list. But it doesnt work the same way I could count repeated elements in just a list. Im fairly new to python, so apologies if it sounds too easy. this is what i did x= [["coffee", "cola", "juice" "tea" ],["coffee", "cola", "juice" "tea"] ["cola", "coffee", "juice" "tea" ]] dictt= {} for item in x: dictt[item]= dictt.get(item, 0) +1 return(dictt)

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