SQL Server :: Handle "paging" In A Web App?
Jul 13, 2010
What's a good way to handle "paging" in a web app? I want the user to see only rows 1-20 from a data query, but they can then choose to view rows 21-40, then 41-60, etc.
More detail:
I'm building an app that will return a bunch of news articles from a database.
I will be converting the query results into XML and transferring it via web service. I will then convert the xml into an HTML table to show in the browser.
The query will return hundreds, but I assume it must be more efficient use of bandwidth and server resources to show only 20 at a time.
View 4 Replies
Similar Messages:
Jul 16, 2010
I haven't worked on the UI in some time. I thought that in ASP.NET 4.0, gridviews handle the paging automatically (if you set paging=true). Is this true, or do you still have to handle it in code?
View 2 Replies
Jun 28, 2010
Both the Method 1 and Method 2 can handle the paging of GridView, could you tell me how about the performance of the Method 1?and how much will Method 1 slower than Method 2
#region ForPaging
public static List<HD_ToDoList> Get_ToDoListByUserNameForPage(string username, int StartIndex, int PageSize)
{
[code]...
View 3 Replies
Sep 7, 2010
i am building my objectdatasource dynmically when certain buttons are clicked on the page.. and with that the gridview is being displayed with the results of the objectdatasource that was built.
So my gridview code looks like this:
[Code]....
How can i enable sorting and paging if the datasource is being built on button click event?
View 16 Replies
Nov 15, 2010
I am passing the PageNumber and PageSize to a stored procedure, which returns only that page of data. It also returns a record count what the total number of records would be if I returned all of them at once.Generally, how do i hook this up to the DataGridView to enable paging?It seems like the expectation is for the resultset to contain the complete dataset. Many of the properties that I expect to be able to set, like RecordCount, appear to be read only.
View 2 Replies
Oct 7, 2010
how to handle if the page request from server is time out or
the client connection to server is already cut off ...??
View 5 Replies
Dec 30, 2010
I am seeing a lot of these errors on the server logs.
Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 12/29/2010
Time: 9:16:28 AM
User: N/A
computer: LFIWEB1
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 12/29/2010 9:16:28 AM
Event time (UTC): 12/29/2010 3:16:28 PM
Event ID: 7843d62e326c41f1a7c819ec2b362418
Event sequence: 549
Event occurrence: 7
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/1733199574/Root/ComfortlinkNET-1-129381012604990336
Trust level: Full
Application Virtual Path: /ComfortlinkNET
Application Path: D:WebappsComfortlinkNet
Machine name: LFIWEB1
Process information:
Process ID: 3896
Process name: w3wp.exe
Account name: NT AUTHORITYNETWORK SERVICE
Exception information:
Exception type: InvalidCastException
Exception message: Conversion from string "cindye" to type 'Integer' is not valid.
Request information:
Request URL: xxxxxxxxxxxxxxxx
Request path: xxxxxxxxxxxxxxxxxx
User host address:xxxxxxxxxxxxxx
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITYNETWORK SERVICE
Thread information:
Thread ID: 1
Thread account name: NT AUTHORITYNETWORK SERVICE
Is impersonating: False
Stack trace: at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value)
View 3 Replies
Nov 2, 2010
My company is planning on having some planned down time, because of some server migrations. Their are about 20 different web applications (internet, and intranet). Any of which can go down at any one time because of the server migration of applications.
So, does anyone know if their is a way to provide a generic message to users if a particular application is down? Like a popup message box, or generic page for that particular application? The idea is to not write 20 different popups or 20 different Fyi-Web pages. But one single page or popup informing that the application is down.
View 2 Replies
May 27, 2010
i want to know if i want to use multiple server for my application. what should i do.e.g. if i used session to store some important data so as session get stored on server if my application use one server and server get crashed then my application also get crashed. So to avoid this problem what should i do (if solution is use multiple servers then how can i do that)
View 2 Replies
Mar 25, 2010
I have an application, that is accessing by number of users at the same time. Those users, who are accessing the application getting the same id. Here what i am doing in the code is, when they are creating new user i am getting a max id from DB and increasing the value to 1. So that they are getting same ID. so that i am facing concurrency in this situation. How to solve this problem. I need to display different numbers when the users click on NewUser. I am using SQL server 2008 and .NET 3.5 and C#.NET
View 2 Replies
Jan 1, 2010
i use webclient method
[Code]....
but how to handle requesttimeout when request is time out
View 1 Replies
Sep 27, 2010
I'm building a browers-based game that will need to constantly be updating EVERYONE'S accounts regularly; what is the best way to go about doing this? Creating a process that runs every time someone goes to a page on my site slows down the load time immensely. Do I need to create a windows scheduled task that calls this/these process(es)? It will need to constantly run.
View 2 Replies
Sep 28, 2010
When setting up asp.net error handlers for things like 404 errors, it is more 'efficient' to do this in IIS, or handle it in the Global.asax Application_Error event? I know the latter will be called, and I want to log this information in a database, but should I then just return without any redirect and let IIS do the redirect, or would it be better to do a response.redirect inside application_error once we've logged it?
View 1 Replies
Dec 10, 2010
We have a page where you can insert a record. On the page we have validation to prevent duplicate IP addresses from being submitted for the same location. Now on the procedure side i have a condition that is checked, if you supply data that already exists for a location, then it will be updated. If its not then its inserted.. this all works fine.. issue now that i noticed is that we have a table that is part of the process, if you select say 3 from a drop down for number of emails, then when you submit the page, i have a loop for each of those emails and they are inserted into the email table as individual records.. works great also.. BUT here is my problem.. if i submit say an existing set of data and this time i provide say 1 email vs 3 from the previous time, i need to handle that in the procedure, so that the 3 are deleted and only 1 is now inserted and linked to that record..
Hope this makes sense..
Since im doing a foreach loop based on that dropdown selection, now when i look at my table im getting only 1 record in the email table... since the logic is within the procedure, when the page calls the procedure, it finds tha the record exists, deletes all the records, then only inserts the last record.
Example.
I submit the page with 3 emails today.. everything works and goes in as expected, there are 3 emails and record is created without issues..
Tomorrow someone else comes in from my team and decides to enter the same record data, thats not a problem, because there is an update statement if it already exists.. BUT this time they entered only 2 emails.. the 2 new emails are inserted / updated in the table, but the 3rd email is still in there.. its not removed.. so i tried to add a if exists condition to my procedure, but since the procedure is called in my foreach loop, the first loop sees the records, deletes them and inserts the first email, then on the 2nd foreach loop it deletes that last entry and inserts the next, so by the time it goes thru it has deleted everything it inserted and only captures the last record..
Just tried it now.. and since there was already 1 record in the table, i chose to add 4.. the end result should be 4, but i now have 5 records in there.. the first one and the 4 new ones..
View 2 Replies
Dec 4, 2010
I have unexpectedly found that I cannot access my data tables from VS 2008. A window comes up saying "The server version is not supported. Only servers up to Microsoft SQL server 2005 are supported". Also, as a consequence I imagine, two web sites which refer to datatable have stopped working.
Has my ISP updated to an SQL version that VS 2008 can't handle ?
View 3 Replies
Nov 18, 2010
Is there a way to use the GridView paging and having the links not use JavaScript. So that when you click on the page number 5 (for example) that link is a hyperlink.
View 3 Replies
Nov 12, 2010
[URL]
so i write a procedure using one table like above article and it is working fine for me.
but problem is i need write a procedure using 2 to 3 table.suppose i have 2 table
ORDER and ORDERDETAILS and i need record from both table so in that case, how can i write procedure using two table and paging it.
so how can i write a procedure and how can i count the record using 2 table.
2-secondly i want to do paging like asp.net forum site.
View 7 Replies
Jul 8, 2010
I'm trying to use a DataPager to do Server Side paging. Here is my code
<asp:DataPager ID="pgrFooBars" PagedControlID="lvFooBars"
QueryStringField="page" runat="server" >
<Fields>[code]....
The problem is that the DataPager appears to be using the Count property of the ListView to determine the total number of records, which in this case is 20. Somehow, it needs to know that there are 1,500, not 20 total records. The DataPager has a property TotalRowCount, but this is read-only.I have never seen a DataPager example with Server Side paging, but assumed that it could do Server Side Paging, otherwise what good is the QueryStringField attribute?
I am aware that you can do a custom paging solution using methodology like the 4GuysFromRolla did here http://www.4guysfromrolla.com/articles/031506-1.aspx, but I'd first like to know if a solution with the DataPager is possible before creating a custom solution.
UPDATE,The more I look at this, the more that I'm coming to the conclusion that this is not possible and that, unfortunately, the datapager is a control meant for small web sites only. What I want to do should really be quite simple if the control were built correctly. I want to be able to say
dpFooBars.TotalRowCountComputed = false;
dpFooBars.TotalRowCount = AnyNumberThatISoChoose;
I've been looking for some hack to accomplish the same thing, but it appears that the datapager's TotalRowCount is computed from the actual number of items in the datasource that it's bound to. It seems very odd to me that Microsoft would create a ListViewPagedDataSource() class and a DataPager at the same time and not have them work correctly together, but this appears to have been what has happened.
UPDATE 2 (AHA MOMENT?It seems that it has been possible to do server side paging since .Net 2.0 by using an ObjectDataSource and customizing the SelectCountMethod(). I believe it should be possible to customize ObjectDataSource to suit my needs. Hmmm. I'm going away for the weekend, so it'll be a couple of days for me to see if this works. Stay tuned, true believers.
View 2 Replies
Aug 18, 2010
How can I handle more than 4k of text on the new SQL Compact Edition 4? nvarchar only supports 4k and when I change to ntext, I get the same exception as I get using nvarchar(4k), when using the Microsoft.Data wrapper included with Microsoft WebMatrix. Should it normally work using ntext?
View 2 Replies
Jan 11, 2012
So, I have a button that populates a datagridview and shows it to the user. What I'd like to do is show a popup from this button just after it's done with the server logic. How can I do that.
View 5 Replies
Feb 9, 2011
I'd like to implement a custom paging template for my formview that displays numeric paging as well as next/previous buttons. The pre-defined templates only appear to have numeric first last as an option. Can anyone recommend a good article that covers this?
View 2 Replies
Nov 30, 2010
Trying to figure out how to handle data returned for a site search from a description field. I don't think I want to display all the text from the description field, but I also don't want to "chop" a word in half. How do I get the first 100 characters, plus a few extra letters if needed to prevent a word from being chopped in half. In some cases, the description field is less than 100 characters, so all the text will be displayed. However, if the description does need to be chopped at 100, I'd like to finish the word and add ... to indicate that there is more text.
View 6 Replies
Apr 14, 2010
I want to use a gridview with sorting and paging to display data from an SQL server, the query uses 3 joins and the full text search containstable. The from part of the query uses all 3 tables in the join.What is the best way to do this? I can think of a stored procedure, SQL directly in the SQLDataSource and creating a view in the database.I want good performance and would like to leverage the automatic sorting and paging features of the gridview as much as possible.
Edit:About size, I suspect very few records, total about 1000 and a query would typical result in no more than 100 records and most times much less.
View 4 Replies
Jan 18, 2010
I would like to know how deadlock is happen, i have facing alot of sql deadlock in my event handle on server computer.
View 3 Replies
Mar 3, 2010
I published my application into server. Some reason gridview paging is not working when i open the application from the server.
Note: When I ran the application at my local system using VS-2008 it's working fine.
View 1 Replies
