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  • how to design a complex webreport in DevExpress XtraReport?

    - by ahmed
    Hello , I have to design a complex webreport with DevExpress Xtrareport .I have to pull data from 40 different tables on user selection and show on the Report. So I have designed in this way. On the design form I am giving the user to select the department section and project. with three dropdowns A) select the report , B) Sort by , C)Filter By A) Select the report contains different types like family status, insurance type etc ..total 40 types. B) Sort by will contain by employee number, date of birth , Salary , and many more C) Filter by will contain like employee on vacation, or employee terminated etc etc. Now for a single webreport I am first taking a DataSource and binding data to labels. to achieve the above webreport I have to take 40 different Datasource and I have to assign to the labels? Should I be doing this?

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  • a question on common lisp

    - by kostas
    Hello people, I'm getting crazy with a small problem here, I keep getting an error and I cant seem to figure out why, the code is supposed to change the range of a list, so if we give it a list with values (1 2 3 4) and we want to change the range in 11 to fourteen the result would be (11 12 13 14) the problem is that the last function called scale-list will give back an error saying: Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) anybody has a clue why? I use aquamacs as an editor thanks in advance ;;finds minimum in a list (defun minimum(list) (car (sort list #'<))) ;;finds maximum in a list (defun maximum(list) (car (sort list #'>))) ;;calculates the range of a list (defun range(list) (- (maximum list) (minimum list))) ;;this codes scales a value from a list (defun scale-value(list low high n) (+ (/ (* (- (nth (- n 1) list) (minimum list)) (- high low)) (range list)) low)) ;and this code is supposed to scale the whole list (defun scale-list(list low high n) (unless (= n 0) (cons (scale-value list low high n) (scale-list list low high (- n 1))))) (scale-list '(0.1 0.3 0.5 0.9) 20 30 4)

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  • Rush Hour - Solving the game

    - by Rubys
    Rush Hour if you're not familiar with it, the game consists of a collection of cars of varying sizes, set either horizontally or vertically, on a NxM grid that has a single exit. Each car can move forward/backward in the directions it's set in, as long as another car is not blocking it. You can never change the direction of a car. There is one special car, usually it's the red one. It's set in the same row that the exit is in, and the objective of the game is to find a series of moves (a move - moving a car N steps back or forward) that will allow the red car to drive out of the maze. I've been trying to think how to solve this problem computationally, and I can really not think of any good solution. I came up with a few: Backtracking. This is pretty simple - Recursion and some more recursion until you find the answer. However, each car can be moved a few different ways, and in each game state a few cars can be moved, and the resulting game tree will be HUGE. Some sort of constraint algorithm that will take into account what needs to be moved, and work recursively somehow. This is a very rough idea, but it is an idea. Graphs? Model the game states as a graph and apply some sort of variation on a coloring algorithm, to resolve dependencies? Again, this is a very rough idea. A friend suggested genetic algorithms. This is sort of possible but not easily. I can't think of a good way to make an evaluation function, and without that we've got nothing. So the question is - How to create a program that takes a grid and the vehicle layout, and outputs a series of steps needed to get the red car out? Sub-issues: Finding some solution. Finding an optimal solution (minimal number of moves) Evaluating how good a current state is Example: How can you move the cars in this setting, so that the red car can "exit" the maze through the exit on the right?

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  • Boost::Asio : io_service.run() vs poll() or how do I integrate boost::asio in mainloop

    - by user300713
    Hi, I am currently trying to use boost::asio for some simple tcp networking for the first time, and I allready came across something I am not really sure how to deal with. As far as I understand io_service.run() method is basically a loop which runs until there is nothing more left to do, which means it will run until I release my little server object. Since I allready got some sort of mainloop set up, I would rather like tp update the networking loop manually from there just for the sake of simplicity, and I think io_service.poll() would do what I want, sort of like this: void myApplication::update() { myIoService.poll(); //do other stuff } This seems to work, but I am still wondering if there is a drawback from this method since that does not seem to be the common way to deal with boost::asios io services. Is this a valid approach or should I rather use io_service.run() in a non blocking extra thread?

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  • How do you unit test web page authorization using ASP.NET MVC?

    - by Kevin Pang
    Let's say you have a profile page that can only be accessed by the owner of that profile. This profile page is located at: User/Profile/{userID} Now, I imagine in order to prevent access to this page by other users, you could structure your UserController class's Profile function to check the current session's identity: HttpContext.Current.User.Identity.Name If the id matches the one in the url, then you proceed. Otherwise you redirect to some sort of error page. My question is how do you unit test something like this? I'm guessing that you need to use some sort of dependency injection instead of the HttpContext in the controller to do the check on, but I am unclear what the best way to do that is. Any advice would be helpful.

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  • Create a template mechanism in Objective-C for iPad applications

    - by Flex_Addicted
    I'm looking for a solution to create a sort of template in Objective C. I'll try to explain my problem. I would create a sort of main view which has 1 side bar that remain always visible. This side bar have controls. The main view is responsible to load a Navigation Controller (UINavigationController seems to be ok) that manages other views. When switching a view to another, the sidebar always remain visible under the Navigation Controller and its views. Through the controls of the sidebar, it's possible to send event to a specific view loaded by the Navigation Controller. Any idea to create a similar template? Thank you. Best regards.

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  • Closest Approach question for math/physics heads

    - by Kyle
    I'm using a Segment to Segment closest approach method which will output the closest distance between two segments of length. These objects are moving at variable speed each, so even when it succeeds I'm currently using a 10-step method and calculating the distance between 2 spheres as they move along the two segments. So, basically the length of each segment is the object's traverse in the physics step, and the radius is the objects radius. By stepping, I can tell where they collide, and if they collide (Sort of; for the MOST part.).. I get the feeling that there could be something better. While I sort of believe that the first closest approach call is required, I think that the method immediately following it is a TAD weak. Can anyone help me out? I can illustrate this if needed. Thanks alot!

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  • Is there any limit to recursion in lisp?

    - by Isaiah
    I enjoy using recursion whenever I can, it seems like a much more natural way to loop over something then actual loops. I was wondering if there is any limit to recursion in lisp? Like there is in python where it freaks out after like 1000 loops? Could you use it for say, a game loop? Testing it out now, simple counting recursive function. Now at 7000000! Thanks alot

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  • .net Value Class sorting with IComparable

    - by greggorob64
    I'm running into an issue using a DataGridView bound to a iBindingListView implementation (third party dll) attached to a large collection. There's a certain property in my collection type, named MyDateTime, which is a value class similar to DateTime, but also with some legacy code. This VALUE CLASS implements iComparable, iComparable<T>, and iEquatable<T>. The issue I'm having is this: When I apply a sort to the iBindingListView, or the Automatic Sorting provided by the DGV on the MyDateTimeColumn, it ALWAYS uses the non-generic iComparer, causing hundreds of thousands of unnecessary boxing and unboxing. When I remove the non-generic iComparer, the generic one is still not used, it just does a string compare on the .ToString(). Am I missing something? Why is my generic comparer not bieng called on a sort?

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  • nested sortable table rows jquery

    - by FLY
    Hi, I am trying to sort rows of a table, and put them as 'child' elements of a table row I found this: http://code.google.com/p/nestedsortables/ this works with ul li lists, but i want to build it for a table. <table> <thead> <th>tablehead</th> </thead> <tbody> <tr><td>somevalue</td></tr> <tr><td>somevalue2</td></tr> </tbody> </table> so yeah you can use jquery.sortable() and sort the rows, but i want 'somevalue' to be become a child element of 'somevalue2' if you drag 'somevalue' over 'somevalue2' I don't know if it is posible with a table. can anyone help me? Thnx!

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  • Customized sorting on DataTable in C#?

    - by Steve
    This is a C# Winform question. I have a DataGridView which is bounded to a DataTable. I construct the DataTable myself, which several DataColumn instances. When the DataTable is bound to the DataGridView, by default, every column is sortable by clicking the headers of the DataGridView. But the sorting behavior is something "by default". It seems that it is sorted by string. This is true even if I put this as my code: DataColumn dc = new DataColumn("MyObjectColumn", typeof(MyObject)); And MyObject has overriden ToString() and has implemented the IComparable interface. That means even if I have told the DataTable how to sort the special column with the implementation of IComparable interface, DataGridView still doesn't do it the way I expect. So how can I let DataTable sort data in the way I want? Thanks for the answers.

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  • browser ctrl-f find and non-visible text

    - by David Pilling
    Can the browser feature of contrl+F to find text be integrated with text in popup windows. I'd like to have some scientific reference information given when someone hovers over a species name in a web page. Generating the popup, tooltip style text is no problem, the problem is that anyone using Ctrl+F won't be able to find it, or if I position the text out of view when not required, it will be found but be invisible. The same sort of effect applies to "accordion" style expanding text areas. I'm looking for some sort of event generated when find is highlighting a result.

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  • How do I place a DIV tag image on the very top of the page in HTML5?

    - by Jacob
    Hello there. I'm trying to put an x-repeat "grid" of images by using background-image in CSS, then using the id in a DIV tag. My intention is to put a sort of "panel", then always extends to the very top of the page, and loops with repeat-x. It works just fine without a DOCTYPE, but when I put the clean in the code, it pushes the image in the tag downwards, as if there's a margin on the top of the page of about 15 px or so. I tried top-margin, z-index, with no success. Excuse me if I'm asking a silly question, but I'm sort of new. Thanks, -Jacob

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  • JTable filled with database data is not being updated when columns are reordered.

    - by marionmaiden
    I have a JTable filled with data of a table of my database (so I used ResultSetTableModel) and using TableRowSorter to sort the rows, as I click in one column of the JTable. The data is displayed in the jTable without problems; But when I sort the JTable by some column table (for example, sorting it by the primary key value), and edit some cell from the sorted jTable, the value changed is the old cell that were in that position before the ordenation of the column. For example: Suppose I have a table with 2 columns - name and age. My table has the following data: c 1 b 2 a 3 when I order i by name in the JTable, it becomes like this a 3 b 2 c 1 if I edit the value "1", after the edition, the table becomes like this a 1 b 2 c 1 It seems that the positions are not being updated in the JTable, and the values are edited considering their original positions.

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  • convert pointer to pointer to void pointer

    - by FihopZz
    When I'm learning to use qsort to sort an array of string, there is a question puzzled me. For example, to sort the following s char *s[] = { "Amit", "Garima", "Gaurav", "Vaibhav" }; To use the qsort, you must provide a comparison function like the following function cstring_cmp I guess in the qsort function, the type of parameter to be passed to the function cstring_cmp is char**. How to convert a char** to a void*? Why can we convert a char** to a void*? int cstring_cmp(const void *a, const void *b) { const char **ia = (const char **)a; const char **ib = (const char **)b; return -strcasecmp(*ia, *ib); /* return the negative of the normal comparison */ }

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  • Selecting a UserControl from XAML

    - by kmontgom
    I'm working on a problem right now where I need to embed a UserControl inside another UserControl. But, I need to determine at runtime which embedded UserControl to instantiate. This implies to me that some form of data binding and/or template selection mechanism has to be invoked, but I'm not sure how to proceed with the pure XAML approach. If I was to do this with code, I would define some sort of container control in the parent UserControl, and then in the code-behind, implement some logic which would instantiate the appropriate child UserControl and then insert it as Content into the specified container in the parent UserControl. Can this be done using only XAML, or is some sort of code-behind required?

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  • Static web project in Visual Web Developer Express

    - by Charlie boy
    I am about to develop a sort of web application using only static files (eg. html, js & css). Is there a way to start this sort of project in Visual Web Developer Express? I want to have all the niceties with intellisense, sulution explorer and whatnot but I don't want all of the ASP.net structure in the sulution. Is thiss possible or is there perhaps another IDE for this kind of project? Thanks!

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  • WCF: limit number of calls per hour - per user

    - by Eric Eijkelenboom
    Hi guys, I've got a WCF service (basicHttpBinding, basic authentication, IIS 6.0) on which I want to restrict the number of calls per hour - on user basis. For example, max 1000 calls per user, per hour (a la Google Maps, etc). I also want to implement some sort of subscription mechanism, so that users can upgrade their call-limit across various 'price plans'. I know that I could achieve this with a custom Inspector, backed by a DB containing some sort of 'subscription' table and a counter, but I'd like to avoid reinventing the wheel. Does anyone have experience doing this? Are there 3rd party projects/libraries that support this out of the box? Thanks. Eric

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  • Thinking Sphinx - sorting by a string attribute gets out of sync when changes are made

    - by Scott Brown
    I have a "restaurants" table with a "name" column. I've defined the following index: indexes "REPLACE(UPPER(restaurants.name), 'THE ', '')", :as => :restaurant_name, :sortable => true ... because I want to sort the restaurant names without respect to the prefix "The ". My problem is that whenever one of these records is updated (in any way) the new record jumps to the top of the sort order. If another record is updated, it also jumps ahead of the rest. I end up with two lists: a list of restaurants that have been updated since the last re-indexing and a list of those that haven't. Each respective list is in alphabetical order, but I don't understand why the overall list is getting segregated this way. I do have a delayed delta index set up, and I assume the issue is related to this.

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