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• SSRS 2005 - Usability analysis - Is SSRS a good option for this scenario?

  - by Sach

  How practical is it to consider SSRS 2005 or SSRS 2008 as a reporting solution for a report that has to show reports with millions of records (records vary from 3 to 10 million)? Is there any threshold on the size of report in SSRS? How do I know that for a huge report, wheather SSRS will consume the whole memory and start paging the operations to disk or it will give a memory leak error? Even if I keep on increasing the memory how can I be sure that certain memory will be sufficient for such huge reports for the report server? All the above questions are haunting me because I have a dedicated report server with a decent hardware and OS configuration (8 processors, 8GB RAM, 64 bit OS and 64 bit SQL Server 2005). Still my report with around 2 million records is taking more than 6 minutes and going from one page to another takes 3 minutes!!! My datasource is on separate server and when I execute only the stored proc there, it returns the results in less than 2 minutes.

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• Implementing a pager for asp.net's DataList/Repeater

  - by emre

  I have a DataList showing the results, and a Repeater that is supposed to be the pager. I decided to use the page number by redirecting with a QueryString parameter, so it will also be bookmarkable ... My problem is mainly in the UI actually. If I put DIV's with their onclick calling a JS function that does window.location = url + pagenumber , then somehow I have to deal with QueryString operations via JS which is a bit messy. If I use LinkButton objects within the ItemTemplate, then the Redirecting happens only when the linkbutton is clicked while whole div has cursor: pointer , you what I mean. What would be the best approach to this? Thanks in advance. Note: I really want to spend the time and effort implementing my own server-side paging. I think its more fun than reading 3rd party manuals.

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• RichFaces rich:insert takes a long time to output large files

  - by Mark Lewis

  Hello I'm using a RichFaces <rich:insert like this: <rich:panel header="my head"> <a4j:outputPanel ajaxRendered="true"> <rich:insert src="#{MyBacking.myPath}" highlight="groovy" /> </a4j:outputPanel> </rich:panel> If I have a 60k file to output, it takes 23 seconds. I've got a requirement to output the contents of some larger files than that and obviously the larger the file, the larger the wait for content. The recommendation in the answer to another related question is to introduce paging. I will, but the question is, why does it take so long to output 60k of text using JSF/RichFaces? That is, reading off a local disk with Windows XP SP2 PC - I can see from the log the data has already been written to disk from the network. Other scripting languages appear to be faster than this - is it something to do with the JSF lifecycle having to handle the text maybe? Thanks

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• Performance benefits of upgrading Richfaces to newer version

  - by peteDog

  I have a client that's running an application based on JBoss 4.0.5, Seam 1.2 and RichFaces 3.0.1. Their system is having performance problems due to the fact that a lot of data is coming back from the server to be displayed on screen and it seems like the rendering of that data is taking forever. The data brought back is displayed in a tabbed interface, but the tabs aren't currently being loaded individually, but all at once. I'm trying to build up a case to present to the client on the benefits of upgrading to never version of RichFaces, which, as I understand it, has added a great number of features related to tabbed panels and being able to use ajax to page the data and load the chunks you actually need to display at the moment, and not the rest that's in other tabs. The move to a newer version of RichFaces will also result in never versions of Jboss and Seam, as the current production build of RichFaces 3.2.1 requires JSF 1.2. IF anyone has some suggestions or experience on performance of current versions RichFaces, paging, etc, I would really appreciate some feedback.

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• linq sort many 2 many question

  - by user169867

  My main entity is called [Contract]. Contract has a many 2 many relationship w/ [Service]. When I query for a list of Contracts I grab the 1st Service available like this: q.Select(c => new ContractSearchResult() { ContractID = c.ContractID, FirstService = c.Contract2Service.FirstOrDefault().Service.Name, ServiceCount = c.Contract2Service.Count, } ).ToList(); q is an IQueryable that has some filtering & paging already applied. (When I display this list I show the FirstService if there's only 1. If 1 I show "My1stService (3)" to show I'm seeing the 1st of 3 services) This works fine. My question is this: Is there any way to sort by FirstService? Or is this impossible? I haven't found a way of expressing this in linq. Any help would be appreciated.

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• URL Routing with WebForms, what to do with additional querystrings like page number, filter, etc?

  - by Scott

  I am switching from Intelligencia's UrlRewriter to the new web forms routing in ASP.NET 4.0. I have it working great for basic pages, however, in my e-commerce site, when browsing category pages, I previously used querystrings that were built into my pager control to control paging. An old url (with UrlRewriting) would be: http://www.mysite.com/Category/Arts-and-Crafts_17 I have a MapPageRoute defined in global.asax as: routes.MapPageRoute("category-browse", "Category/{name}_{id}", ~/CategoryPage.aspx"); This works great. Now, somebody clicks to go to page 2. Previously I would have just tacked on ?page=2 as the querystring. Now, How do I handle this using web forms routing? I know I can do something like: http://www.mysite.com/Category/Arts-and-Crafts_17/page/2 But in addition to page, I can have filters, age ranges, gender, etc. Should I just keep defining routes that handle these variables, or should I continue using querystrings and can I define a route that allows me to use my querstrings like before?

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• how to add Go to Page No. function in xtrareport from runtime ?

  - by ahmed

  Hello, I would like to customize my report. I would like to remove the report toolbar and add manual options to export to just only pdf and excel. Exporting to pdf and excel is working fine with me. The only thing now I need is to paging the reports. I want to add something like " go to page No ..." and the user will click the page no. Is this clear ? Any help will be appreciated. Thanking you all.

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• Slow SQLite access on iPhone

  - by georgij

  I have a quite slow data retrieval from a sqlite database on my iPhone and perhaps someone have an alternative idea to explain this. From what I tracked down so far sqlite3_step(statement) is sometimes unusually slow. While retrieving e.g. 50 rows from the database to execute this step takes normally some milliseconds but sometimes it takes several seconds. My database is not small (80MB) and my theory is that the reason is paging. But can someone else think of an other reason for this?

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• Add own search parameter in jqGrid in Asp.net mvc

  - by paresh

  I have just started working on asp.net mvc and jqgrid. I have a calendar which returns a date, a multiselect list box and apply filter button outside of the grid. Is there a way to pass these filter values to the server-side actionresult GridData() based on the selected date and multiple selected values and also it persist while paging or sorting. public ActionResult GridData(string sidx, string sord, int? page, int? rows, Collection categoryOptions,string fromDate) {..} Thanks!

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• Xpath to get the 2nd url with the matching text in the href tag

  - by Blankman

  A html page has paging links, 1 set at the top of the page and another on the bottom of the page. Using HtmlUnit, I am currently getting the HtmlAnchor on the page using getByAnchorText("1"); There is a problem in some of the links on the top, so I want to reference the bottom links using XPath. nextPageAnchor = (HtmlAnchor) page.getByXPath(""); How can I reference the 2nd link on the page, with using xpath? I need to reference the link using the AnchorText, so a link like: <a href="....">33</a> The href has random text, and is a javascript function so I have no idea what it will be. Is this possible with xpath?

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• Is there a Drupal module for Forms with powerful CRUD style behaviour?

  - by Petras

  We are building a website that contains a large number of database tables that need to be edited by the CMS administrator. Some of the tables are fed by form submissions from users on the front end of the website. Some of the tables are purely in the CMS and are used to create custom modules on the front end of the website. Although there is a forms module in Drupal, I think our requirements cannot be met by it. Does anyone know of a system that allows forms to be saved to a CRUD style database with the following features? Export of all database fields. View a summary of the records in a filterable table. With paging You can have one to many relationships in records eg To code this manually for 10 forms is A LOT of work. Particularly the one to many relationships. If there is a powerful module available it would save us writing one.

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• How to get a list of items when using cassandra

  - by Blankman

  When using a nosql type datastore like Cassandra, how would you return a result set based on a column? e.g. SELECT * FROM Articles WHERE category='blah' ORDER BY datetime DESC is this something that you would store in a sql db and then pull the data from cassandra? Or can cassandra handle this type of query? (assuming millions of rows in a db) From what I understand, cassandra is great at key based lookups, confused if it can and should be used for getting a list of data back and paging that data also (and if it is highly performant)

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• Looking to capture PageIndex on a gridview

  - by StevieB

  Hey, So I have a gridview which lists a bunch of jobs. On this gridview I have paging enabled, which works fine. When I hover over the Page Numbers i.e 1,2,3,4,.... the following is displayed javascript_DoPostBack('C100PlaceHolderGrievew','Page$1') Now my problem is as follows. When I click on one of the hyperlinks in this list i go to an edit details page. Once the user clicks on save I redirect the user back to the List page with gridview. What I would like to implement is that the gridview remembers what page they came from i.e Page 2. I know i can Use PageIndex to set this but Im not sure how to send across the value of "page" of the gridview so i can this.

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• NHibernate.Linq to Criteria API translation help needed

  - by Arnis L.

  I'm not sure how to add paging to this: Session.Linq<Article>() .Where(art => art.Tags.Any(t => t.Name == tag)).ToList(). So i decided to use Criteria API. var rowCount = Session.CreateCriteria(typeof(Article)) .SetProjection(Projections.RowCount()).FutureValue<Int32>(); var res = Session.CreateCriteria(typeof(Article)) .Add(/* any help with this? :) */) .SetFirstResult(page * pageSize) .SetMaxResults(pageSize) .AddOrder(new Order("DatePublish", true)) .Future<Article>(); totalCount = rowCount.Value; Any help appreciated.

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• Cache inferno - how can Model.A be two different things at the same time?

  - by Martin

  I have this <%=Model.StartDate%> <%=Html.Hidden("StartDate", Model.StartDate)%> it outputs: 2010-05-11 11:00:00 +01:00 <input type="hidden" value="2010-03-17 11:00:00 +01:00" name="StartDate" id="StartDate"> What the... It's a paging mechanism so the hidden value was valid on the first page and I've been able to move forward to the next page. But since the values won't update properly it ends there. What do I need to do. Using firefox.

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• Memory-Mapped Files & Transparent Persistence of Java Objects

  - by geeko

  Greeting All, I want to achieve transparent persistence of Java objects through memory-mapped files (utilize the OS paging/swapping mechanism). My problem is: how can I move a Java object to my memory-mapped block ? Plus, how can I force a new object instance to reside in such blocks ? As you all know, a memory-mapped block can be seen as a byte array, and what I am really asking here is how to overlap the address space of Java objects with the one of such arrays ? If Java does not allow me for this, what cross-platform & garbage-collecting OO language would you advise me to use ? Thank you all in advance.

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• User controls do not properly fit on the screen

  - by Royson

  Hi, My application has several controls. Like in one screen has TreeView on left side, GridView with paging in the middle and 4 buttons at right side. The controls properly appear when the form is in a maximized state, but if I minimize it the controls do not properly fit on the screen. I tried with different different tricks like table layout.. in dat I added a panel, etc... But I could not solve the problem. How can I create such type of screens which fits independently of size of my window? Thanks

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• Creating user control with dock.Full property giving me a problem

  - by Royson

  Hi, My application has several controls. Like in one screen has treeview on left side,gridview with paging in the middle and 4 buttons at right side. the controls are properly appears when the form is in maximize state. but if i minimize it the controls are not properly fits in the screen. i tried with different different tricks like table layout.. in dat i added panel...etc.. but i could not solve the problem. How can i create such type of screens which fits independent of size of my window. Thanks

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• IPHONE - number of row being shown

  - by Mike

  I have a table inside a UIImageView. The table occupies the entire UIImageView. The table contains a series of images. Scroll and paging are enabled. As the table size is the same of its parent view, I can see just one cell of the table at a time. When I roll the table, I see the next or previous cell. I have a variable that must contain the number of the row being shown, but how can I make this table update the variable. I can see that I can use the didSelectRowAtIndexPath to change the variable when the cell is selected, but this is not the case. I need to update the variable when the table is rolled. I want to do the same thing I could do using a UISCrollView and scrollViewDidScroll:, but even if this is possible, I would have to know the number of the row that is visible. How can I do that? thanks.

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• Alert on moving to a different page of a grid when user changes contents of textboxes in a Grid

  - by Ashish Gupta

  In a ASP.NET application I have a paging RadGrid which shows up textbox in each row. Outside the grid, there is an OK button to save the content of all the textbox. If user changes text in any one or more of the textbox and without clicking on the "OK" button, tries to move to a different page number (of the grid by clicking on the page number), he should be prompted for confirmation of save or cancel the changes. I am guessing that one can write a Javascript function which would look for any form input control (textbox in my case) and detect changes and If there are changes, would prompt the user. However, I am not sure where I can call this function from? Any suggestion on this or a better way to achieve this would be appreciated. I am using RadGrid but I guess this should be applicable to GridView as well.

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• showing surrounding page numbers

  - by Tony Vipros

  I've been doing some pagination recently and used the following: if ( $totalPages > $pagesToShow ) { $start = $pageNumber - floor($pagesToShow/2); $end = $pageNumber + floor($pagesToShow/2); while ( $start < 1 ) { $start++; $end++; } while ( $end > $totalPages ) { $start--; $end--; } } else { $start = 1; $end = $totalPages; } to work out where to start and end the list of surrounding pages. So that a paging list can be created like << < 1 2 3 4 5 '. Just wondering if there is a better method as using loops like that seems a little odd.

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• Preserve data in .net mvc

  - by Wei Ma

  I am implementing a search module with result page support paging. The example provided by NerdDinner passes pagenumber as a parameter for the Index action, and the action uses the pagenumber to perform a query each time the user hit a different page number. My problem is that my search take many more criteria such as price, material, model number etc. than just simple pagenumber. Therefore, I would like to preserve the criteria after users' first submission, so that I only have to pass the pagenumber back and forth. Using ViewData is not possible because ViewData get cleared once it is sent to the View. Is there any good way to preserve the criteria data as I wish?

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• Order By Rand by Time (HQL)

  - by Felipe

  Hi all, I'm developing a web application using asp.net Mvc 2 and NHibernate, and I'm paging data (products in a category) in my page, but this data are random, so, I'm using a HQL statement link this: string hql = "from Product p where p.Category.Id=:IdCategory order by rand()"; It's working fine, but when I page, sometimes the same product appears in the first, second, etc... pages because it's order by rand(). Is there any way to make a random order by fixed by period (time internal) ? Or any solution ? thanks Cheers

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• Apply limit in mapreduce function in php?

  - by Rohan Kumar

  How to apply limit in php, mongodb when using mapreduce function? I tried this $cmd=array(// codition array "mapreduce" => "user", "map" => $map, "reduce" => $reduce, "out" => array("inline" => 1), "limit"=>2 ); $db=connect(); $query = $db->command($cmd);// run command But its not working it gives 2 documents.I can't use limit on sub documents. If I have 100's of sub documents and then I want paging in sub documents.Then it fails.Is it possible to apply limit on sub documents?

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• What is the best solution to do Reporting on Object data for .NET ?

  - by Peter Fox

  Hi, Our projects are using objects as the data source to reports. Our business layer is returning single objects or IEnumerable. Our reports (quite complex) need to display value-type properties of the object, and its related objects. Typical case would be, from a List, display a master report with category data, then a subreport with data for each Product inside each Category, then a subreport for each Part of each Product, and so on. Reporting from the database is not an option for us. We have tried so far - Reporting Services : works but have to mess around with the XML definition of the report to define the datasource classes, very hard to work with if you use an object datasource, architecturally not too clean - Telerik Reports : quite nice (esp., nice architecture) but seems to have problems with complex reports (master/sub), does not give great paging control, rumored to have performance/crash problems (immature product). Does anyone know a good reporting solution that can be integrated in an ASP.NET application and works well with objects as datasources ?

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