C# - Paging Through A List Of Objects And Repopulating Using JQuery AJAX
Dec 20, 2010
I have a list of objects and I would like to create my own custom control that pages through the list using Jquery to make the Ajax calls to my pager methods. I've had some experience with Jquery but need a helping hand and I really don't want to use update panels etc. So the scenario is.....user clicks next, the C# method is called using Ajax, the code gets the relevant data and sends re-populates the UI with the next item in the list.
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Dec 20, 2010
I have a list of objects and I would like to create my own custom control that pages through the list using Jquery to make the Ajax calls to my pager methods. I've had some experience with Jquery but need a helping hand and I really don't want to use update panels etc. So the scenario is.....user clicks next, the C# method is called using Ajax, the code gets the relevant data and sends re-populates the UI with the next item in the list.
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Jan 22, 2010
I have a form that I don't want to post back so I need to get the form values into my controller via jquery's ajax method.Here is my test controller method:
[Code]....
When I debug the controller method and look at the lineItems parameter, it always contains 0 items. I've tried various formats for the javascipt lineItems parameter but still 0 items. I'm also open to some other way of getting these values in like the jquery form serialze method or something else.
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Nov 17, 2010
have some Objects, lets say Employee and Role defined as below and I have defined relationships in my database that gives me a list of objects say employees and thanks to my framework each employee object also has a Role object linked via the RoleIDID, UserName, Password, Email, RoleIDRoleID, RoleNameSo in code I can do something like this
Employee emp = dataService_GetEmployeeByID(1);
string RoleName = emp.Role.RoleName;
Now here is my problemI can bind any object in a repeater and it works fine for the first level in my relationship
For instance <%# Eval("UserName") %>
But I need to be able to show the details for my child objects as well (Role) so something like this (which does not work)
<%# Eval("Role.RoleName") %>
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Apr 6, 2010
I know how to bind a simple objects to a dropdown list. However I am having problems binding my objects which contains sub objects to the control.i.e. with simple object i just do ddl.DataValueField = "myproperty"
with my objects they contains sub objects which i want to bind. I have tried ddl.DataValueField = "sub-object.myproperty" which doesnt work.
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Jan 10, 2011
I've read this great article showing how to apply paging in ASP.NET via jQuery/Ajax [URL]. But it use JTemplate. My questions are:
1. Should I use asp:listview control instead of Jtemplate. Because JTemplate is not familiar to me.
2. If I can use asp:listview control, show me how to replace Jtemplate.
3. If not. May you show me how to apply paging in listview ASP.NET via JQuery/Ajax ?
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May 7, 2015
How to change gridview by datalist in this example? [URL]
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Feb 24, 2010
Currently i am having a list like List<Tickets> allTickets.I need to select in the same list some corresponding info about the ticket writer like List<Ticket, aspnet_User>.
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Jun 21, 2010
I have a list of objects (List1) and I am trying to make a copy of this list (List2) and then change one of the fields in the new list.I used :
List<MyObj> List2 = new List<MyObj>();
List2.AddRange(List1);
I alos tried:
List<MyObj> List2 = new List<MyObj>(List1);
But regardless of the method, when I do:
foreach (MyObj o in List2)
o.some_field = 2
it not only changes the field in Lis2 but alos in List1. Not sure what I am missing here.
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Jun 24, 2010
i want to store a list of objects in session
List<ContentQueueLog> inactiveContent = GetInActiveContent(this.userID, this.visitorID);
when i store this list in sesssion it is stored but while trhying to get its null.
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Mar 17, 2010
I'm using asp.net mvc2 and trying to send a list of json objects with hard coded values from the home controller, and receive them in index.... in the code below i'm sending 1 json object. how do i send many?
in home controller:
[Code]....
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Jan 23, 2010
I have a List of objects in an asp.net page. when the page loads in the browser for the first time, I fetch data from the database, create objects with those data and populate the list. All these are done inside the page load event handler. Now when the page is posted back to the page, the previous list is gone, since the variables were all freed.
How can I cache that List, so that when this page is posted back, all my objects are available?
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Mar 10, 2011
Action method takes as id parameter and returns 2 lists (eg. List<object1> and List<object2>) of objects back to the view. In order to achieve this, the viewmodel is created as below;
ViewModel
{
Int id;
[code]...
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Mar 12, 2011
I am making my first attempt at using RenderPartial to display a list of objects, but so far having little success. Here is my code, can somebody give me some guidance on what I am doing wrong?
[Code]....
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Dec 20, 2010
I finding myself repeating myself and the DRY side is nagging me to find an abstraction. I have a number of different entities in an MVC3 Razor web app. They are all business objects and each has a number of different properties that I show to the user in a list. So I have Index views and List partial views for each of these different entities (there are at least 10). I would like to abstract the List partial view so that it's capable of displaying a list of any type of entity. It simply shows them in a table with a column for each property and a row for each entity. My current thinking is that I could receive a list of objects and then use Reflection to see what properties those objects have and use those to make columns. I really wish I could receive a generic List somehow and from my various controllers just pass in an anonymous object (new {Parameter 1=param1, Parameter 2=param2}, etc.) but then I discovered that it's not possible to pass anonymous objects around.
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Jul 19, 2010
I am looking for a filtering mechanism, as the user types in the drop down box I want to filter the list to the list items that match what the user is typing. Is there any premade control for this or does anyone know the best way to achieve this feature?
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Mar 25, 2011
Let's say I have the following class:
[Code]....
Now let's say I have a list of these objects.
[Code]....
How can I sort this book list by the Book object's BookID property?
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Jul 8, 2010
I'm really new to MVC (just started a few weeks ago) and new to Ajax (never looked at it before today). I need some design / technical advice concerning Ajax, MVC, loading partial views, and posting / getting from a view. What I'd like to do it load a partial view that takes in a list of objects that have been queried from my db into an details-type view. The details view already has some other content that has been handeled and loaded from information pulled from my database and setup through some actions. It is strongly types to a model.
Below is the partial view I've created thus far:
[Code]....
And here's a portion of the Details page:
[Code]....
I'm not sure what to do for the Ajax.ActionLink. I'd like for a use to be able to type into the text box on it's left and hit "Add" (the Ajax link) and have the application add the content in the text box to the database. Should it be something else? An <input>? The Controller code piece is below:
[Code]....
So it should be adding the member into the repo / db and then reload the contents of the partialview. Instead, it's reloading the whole page and not just the partial view. (the url is changing from /project/details/5 to /project/membersection/).
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Oct 27, 2010
I am using Linq To Sql to get List of objects with data from database. To bind data with a grid view i am creating a dataset explicitly and then adding List values to that explicitly created dataset.
Now my question is whether it is a good pratice to do what i am doing (in terms of resource utilization) or is there any better way to this...
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Mar 16, 2010
I am just learning ASP.NET c# and trying to incorporate best practices into my applications. Everything that I read says to layer my applications into DAL, BLL, UI, etc based on separation of concerns. Instead of passing datatables around, I am thinking about using custom objects so that I am loosely coupled to my data layer and can take advantage of intellisense in VS. I assume these objects would be considered DTOs?
First, where do these objects reside in my layers? BLL, DAL, other?
Second, when populating from SQL, should I loop through a data reader to populate the list or first fill a data table, then loop through the table to populate the list? I know you should close the database connection as soon as possible, but it seems like even more overhead to populate the data table and then loop through that for the list.
Third, everything I see these days says use Linq2SQL. I am planning to learn Linq2SQL, but at this time I am working with a legacy database that doesn't have foreign keys setup and I do not have the ability to fix it atm. Also, I want to learn more about c# before I start getting into ORM solutions like nHibernate. At the same time I don't want to type out all the connection and SQL plumbing for every query. Is it ok to use the Enterprise DAAB for now?
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Oct 21, 2010
I have a model containing a List with custom objects, let's say Customer objects. Like this:
[Code]....
In the View I print out (for simplicity) the name and id of the customer objects on the model. How to restore these values on postback if the method signature looks like this:
[Code]....
Should I use hidden values? This is not possible if the List contains items of interface type, for example List<ICustomer> where ICustomer is an interface. Is there any other way to "save" the values on each postback? For example I may want to view validation error messages when the user submits the form and then the properties of the customer object must still be there..
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Mar 13, 2013
Nothing I find on the Internet is working.This is the closest I've gotten. It produces an output file without exceptioning but the output file has blank lines. But it's the correct number of blank lines.
Code:
public void WriteCSV<T>(IEnumerable<T> items, string path)
{
Type itemType = typeof(T);
var props = itemType.GetProperties(BindingFlags.Public | BindingFlags.Instance)
.OrderBy(p => p.Name);
[code]...
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Jun 7, 2010
When I post multiple DropDownBoxes like below:
Ticket 1: <%= Html.DropDownList("nr_of_tickets") %>
Ticket 2: <%= Html.DropDownList("nr_of_tickets") %>
Ticket 3: <%= Html.DropDownList("nr_of_tickets") %>
And my action controller will catch these values like:
public ActionResult Step1(int id, int[] aantal_tickets)
or:
public ActionResult Step1(int id, IList aantal_tickets)
Both statements are working, but repopulating the form doesn't work. I get in every dropdown list the same value as the value selected in the first dropdownlist.
What am I doing wrong?
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Jul 9, 2010
what I wanted to implement is something like this: lick meThis demo is PHP based, so I wanted to ask whether this is also possible to implement in ASP.Talking about performance, would it be better to use the jQuery framework than the Ajax Control Toolkit?
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Jan 26, 2010
i manage to add recrod via jquery ajax call to webmethod but i want to update the dropdown list once the record is been added. i dont want to use update panel. what would be the best way of doing that.
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