paging

问题 Have a website project in MVC3 C # where I retrieve information from the database and presents in a table in my view. I want to use paging to show up to five lines per page. Have been looking for tutorials on Internet but they all seem very advanced to achieve it. What is the easiest way for paging with MVC3? Look in the lower left corner of the picture to see what I mean by paging paging http://www.syncfusion.com/content/en-US/products/feature/user-interface-edition/aspnet-mvc/grid/img

问题 What is the Equivalent syntax of MySQL " LIMIT " clause in SQL Server . I would like to use it for doing paging of my results. (want to show records5 to 10 ) 回答1: The closest thing is TOP: Select top 5 * from tablename You can get a range ( rows 5 - 10) SELECT * FROM ( SELECT TOP n * FROM ( SELECT TOP z columns -- (z=n+skip) FROM tablename ORDER BY key ASC ) ) 回答2: The closest to it is SELECT TOP X but it is only equivalent to LIMIT X . For LIMIT X, Y , there is no direct MS-SQL equivalent

问题 I've read several different posts on paging w/ in MVC but none describe a scenario where I have something like a search form and then want to display the results of the search criteria (with paging) beneath the form once the user clicks submit. My problem is that, the paging solution I'm using will create <a href="..."> links that will pass the desired page like so: http://mysite.com/search/2/ and while that's all fine and dandy, I don't have the results of the query being sent to the db in

问题 for tables with > 1,000,000 rows and possibly many many more ! haven't done any benchmarking myself so wanted to get the experts opinion. Looked at some articles on row_number() but it seems to have performance implications What are the other choices/alternatives ? 回答1: We use row_number() to great effect and there hasn't really been any performance issues with it. The basic structure of our paginated queries looks like this: WITH result_set AS ( SELECT ROW_NUMBER() OVER (ORDER BY <ordering>)

问题 I am trying to create horizontal slider like Flipkart. I am using collectionView with Horizontal scrolling and paging. Cell contains imageView. I am succeed in scrolling items horizontally manually, but I want all these items to move automatic and manually both. I am not getting how to scroll items of collectionView automatically. Please guide me to do this. I have use this code in viewDidAppear: let visibleIndexPath: NSIndexPath = self.collectionView.indexPathForCell(cell)! self

问题 I found this example. Consider a system with a 32-bit logical address space. If the page size in such a system is 4 KB (2^12), then a page table may consist of up to 1 million entries (2^32/2^12). Assuming that each entry consists of 4 bytes , each process may need up to 4 MB of physical address space for the page table alone. What is the meaning of each entry consists of 4 bytes and why each process may need up to 4 MB of physical address space for the page table ? 回答1: A page table is a

问题 Lets say I have a normal page table: Page Table (Page size = 4k) Page #: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page Frame #: 3 x 1 x 0 x 2 x 5 x 7 4 6 x x x How can I convert an arbitrary logical address like 51996 into a physical memory address? If I take log base 2 (4096), I get 12. I think this is how many bits I'm suppose to use for the offset of my address. I'm just not sure. 51996 / 4096 = 12.69. So does this mean it lay on page#12 with a certain offset? How do I then turn that into the

问题 Example question from a past operating system final, how do I calculate this kind of question? A computer has a 64-bit virtual address space and 2048-byte pages. A page table entry takes 4 bytes. A multi-level page table is used because each table must be contained within a page. How many levels are required? How would I calculate this? 回答1: Since page table must fit in a page, page table size is 2048 bytes and each entry is 4 bytes thus a table holds 2048/4=512 entries. To address 512

问题 I have a jqgrid where the database table has a few thousand rows, but the jqrid shows only 15 at a time. It should be displaying very quickly (it doesnt take long to query 15 rows). But instead it takes 10 - 20 seconds, which indicates to that it is retrieving the entire table each time. The grid is defined like this: $("#Products").jqGrid({ url: url, mtype: "get", datatype: "json", jsonReader: { root: "Rows", page: "Page", total: "Total", records: "Records", repeatitems: false, userdata:

问题 i have an asp.net website where i do paging through on the code behind using: PagedDataSource objPds = new PagedDataSource { DataSource = ds.Tables[0].DefaultView, AllowPaging = true, PageSize = 12 }; what is the equivalent best way of doing paging for asp.net-mvc. I would think this would actually belong in the view code. 回答1: I would just define a custom route with the page number in it: routes.MapRoute( "Books", // Route name "books/{page}", // URL with parameters new {controller = "Books"