c# - Show a huge number of data in DevExpress GridView -

-

With 3000 lines I have a DevExpress grid view and each row has 10 as extensions (this means that when I have 30000 loads in grid load items to load)

All data loads It takes a long time to do so, then there is a way to show example 100 lines, and when I use the automatic filter, do I show the lines I want?

Example

I tried to leave and take (using LINQ), but what I actually see for it Also want to use the automatic filter of the grid. 

  Public Static Binding List & lt; Patient & gt; GetObjectUsingLinq (string sql = "", int skipCount = 0, int lekton = 0) {var gsData = GetDataContext (); Var query = (to choose q.nom q with GS dataApotate order); Return new compulsory list & lt; Patient & gt; (LinqHelper.DoSortPaginate (Query, "" Leave, Techcount) .Oolist ()); }   
 and to call it on the grid  
  listPatient = patients.getObjectUsingLinq (); myGrid.DataSource = listPatient;    
 
 
 If you need to display large amounts of records in the grid control, then you You can use  Server Data Binding Mode  (Synchronous) or these are specially designed to work with a large set of data with more than 50,000 records. 
 Take a look to get started with these modes. With excitrgrid and LINQ, you can start here: 
  
    Data-aware DevExpress control for data source ( Such as grid control) simplifies the process of binding

Comments

Post a Comment

Popular posts from this blog

Pass DB Connection parameters to a Kettle a.k.a PDI table Input step dynamically from Excel -

-
Image
I have a requirement whenever I run my own kettle, dynamically took database connection parameters from an excel source Every run should go. I have an Excel column names: hostname, username, database, password. I want to pass these connection parameters to my table input stage dynamically whenever it runs the job. This is what I was trying to do. You can get it Connection parameters from the DB reading source (for example Excel or a CSV file in my example) < / Li> Store the parameters in the variable Using the variable in your connection's settings. Setting Variables Create another conversion for (you can not do it in the same conversion Uses): set variables element variable: The element that reads / writes your data creates a new connection and sets the connection parameter using $ {variable name_} Note that you will need to type in the field field in the field $ {password} Also keep in mind that this can be a security problem as the
Read more

multithreading - PhantomJS-Node in a for Loop -

-
I am trying to implement a screen-scraps application that opens a URL in which a parameter changes as it is for a loop: var data = [ '100', '101', '102', '103', '104']; (Var indexA = 0; indexA & lt; data.length; indexA ++) for {Phantom Generation ({'port': freeport}, function (pH) {ph.create page (function (page) {page.open ("http: //...++ data [index B] +" ... " , Status {console.log ("open site:" + data [index B], position); / * OLD * / indexB ++; page evaluation (function () {// page scrape and an object Return}, function {console.log (result.dataRequest); // here is the problem}); / * new and fixed * / indexB ++} first console Logs it: Open Site: 100 Success Opens Site: 101 Success B Ola Site: 102 Success Opening Site: 103 Success Opened Site: 104 Success Which is good. Data is verified in scrap HTML and from index to array Matches. So in page 101 I scrap '101 and retrieve' and pu
Read more

c++ - MATLAB .m file to .mex file using Matlab Compiler -

-
I know that it can speak as a very famous topic, but something that helps me with it Not found This scenario is: I have my functions function, no matter what's inside, it's a generic function that may depend on other toolboxes. Does. Has input and output; I want to generate the same myFun.mex function; : Lib myFun This way I get some new files: libmyfun.c libmyfun.dll Libmyfun.exp libmyfun.exports libmyfun .h libmyfun.lib Reading around and I think that Creating a myfun.cpp that is very famous is included: / * gateway function * / zero max function (ent NLHS, MXARRA * PLS [], int NRHS, CONST M Xeray * PHS []) Here is the Variable Deals * / / * code here * /} I have tried to do this and are called Regular of Max Generation: Max ('- v', 'myfun.cpp') But I get many errors, and I should say that my myfun.cpp copy / Paste Function is where I have a lot of doubts ... especially on input / output management. My q
Read more