C# - Order A Object's List?

Feb 16, 2010

i have an object's list where the object has 2 attributes, id and name. I have to order the list by the name of the objects

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JQuery :: How To Create List Order And Unorder List Using Data Table

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1 My DataTable Return following Data

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How To Order List By String Value

Sep 7, 2010

I need to order a list of items, by a string value...

e.g. 635, 955, 5820, 1010 should appear as 635,955,1010,5820, however it shows up as 1010, 5820, 635, 955 because it's a string and not an integer.

I cannot convert to integer, it must eb a string value. how this can be done simply using a string value?

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Feb 17, 2010

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I'm trying to better understand the life cycle of an object in the .Net framework. My companies Intranet has some custom classes that were written by a vendor that I'm trying to make some modifications to. Specifically I want to set some variables & hashtables to null when use of the object is done. For now I have this in the dispose event.

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If I have a specific order that I want to sort my List by, how do I do that? For instance, I have a list of items (coming from a database), with ID's ... and they come in order, i.e 1, 2, 3, 4. After receiving this list, I'd like to reorder the list above based on a specific order, e.g. 2, 4, 1, 3. How do I do this without complicate it too much?

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C# - Order A List / No Other Fields Associated With A Category?

Oct 26, 2010

I have a function in sitefinity that returns a list of categories.

//return list of categories
private IList<ICategory> GetCategoryDataSource() {
var cntManager = new ContentManager(CaseStudyManager.DefaultContentProvider);
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What I want to know is how to sort this list.

Categories in Sitefinity are as far as i can tell just a string, there are no other fields associated with a category. Therefore I have nothing to sort the categories on, other than appending each category with a number, like:

1 - Legal
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Correct The Sort Order Of Sql Dropdown List?

Jan 5, 2010

I am trying to correct the sort order of my ASP.NET drop down list.

The problem I have is that I need to select a distinct Serial number and have these numbers organised by DateTime Desc.

However I cannot ORDER BY DateTime if using DISTINCT without selecting the DateTime field in my query.

However if I select DateTime this selects every data value associated with a single Serial number and results in duplications.

The purpose of my page is to display data for ALL Serials, or data associated to one serial. When a new cycle begins (because it is a new production run) the Serial reverts to 1. So I cannot simply organise by serial number either.

When I use the following SQL statement the list box is in the order I require but after a period of time (usually a few hours) the order changes and appears to have no organised structure.

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AJAX :: Reorder List - No Changes To Order Are Visible

Sep 2, 2010

Im using a toolkit reorder list control. Im using LINQ2SQL. I have troubles making the order changes in the list to be updated to the database. This is my aspx code:


The drag and drop reordering works fine. In my


But no changes to the order are visible. What is missing?


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Sep 24, 2010

I have been trying to get the Re-order list to work using the following tutorial (but in VB instead): [URL] The list is displaying properly, but none of the items are moveable. My code is pretty much exactly the same as the tutorial.

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Feb 1, 2011

I have a couple methods to handle the saving of an image using Request.InputStream. I have two extensions that share the HttpContext. In one of my methods, I'm using a BinaryReader to read in the contents and do the processing. However, naturally, when disposing the BinaryReader, it closes off the InputStream property on Request. My SECOND method uses the same input stream to create a thumbnail.

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Forms Data Controls :: Object Reference Not Set To An Instance Of An Object In Nested Repeater Control Of CheckBox List ...

Sep 24, 2010


I am getting error of in Foreach loop


How to resolve this situation or any other alternative to cum out of this problem.

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Web Forms :: Capture List Box Order After Javascript Change

May 13, 2010

I have a list box with 2 buttons (up and down) to determine the sort order. To move the items in the list box up or down I am using Javascript. I have a save button which is used to save the new order. However, I have an issue, in that when I have rearranged the order and press save, the order from the code behind is the same as the original order. My list box is:

<asp:ListBox ID="lstSortOrder" CssClass="uiControl" Height="200px" Width="700px" runat="server"></asp:ListBox>

My code behind to save the new sort order is:


What so I need to do to capture the new listbox order?

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Web Forms :: Create A List Order And Unorder Using Database?

Sep 5, 2010

how to create a list order and unorder using database

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Web Forms :: Is It Possible To Display The Items In A Dropdown List Not By The Order Of Insertion

Jul 7, 2010

Is it possible to display the items in a dropdown list not by the order of insertion?

i want to display the orders alphabetically.

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Save The Order Of List To The Sql Server Database In Jquery Drag & Drop

Nov 5, 2010

I wanna save the order of my list to the sql server database in jquery drag & drop using asp.net c#. How can I do this?

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C# - Order A List Of Entities Based On A Field From A Separate Entity With A Relationship

Mar 6, 2011

I'm using Entity Framework for my object-relational mapping, and jqGrid for my grid.

I have an Employee entity, that contains a ContactID field. I have a Contact entity that contains fields FirstName and LastName.

I want to display a list of Employees in a grid, and give the user the ability to sort by FirstName and LastName.

Here's what I have right now:

public JsonResult GridData(string sidx, string sord, int page, int rows)
var pageIndex = Convert.ToInt32(page) - 1;
var pageSize = rows;
var totalRecords = GetAllEmployees().Count();
var totalPages = (int)Math.Ceiling(totalRecords / (float)pageSize);
IQueryable<Employee> employees = GetAllEmployees().
OrderBy(sidx + " " + sord).
Skip(pageIndex * pageSize).

As you can see, this only gives me the ability to sort by fields in the Employee entity, so I can't sort by FirstName and LastName.

How can I modify this to accomplish that?

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Sep 22, 2010

I have a DropDownList inside the EditTemplateItem (if the user clicks edit) in a GridView.The DropDownList receives all available rows from the database. My problem is,if the user clicks Edit in the GridView to edit a row and opens the DropDownList Box the original item is not selected but the first one.That means the items are sorted. Have someone an idea how I can solve this issue that the right item / the original is selected if I change to edit mode of the grid view?

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May 8, 2010

i have list of user class but now i have to return it as a list of object, i try to convert it but it gives me error like. can not implicitly convert.

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Feb 19, 2010

I am declaring a list in my class, populating the list in page load and using the list in various methods in this class. But, I get this error at every instance where I use this list in the methods. Error: System.NullReferenceException: Object reference not set to an instance of an object.

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Web Forms :: Rearranging Texbox Order - Maintain Order In Insert / Update Cases

Jan 23, 2010

I have 5 hard corded texboxes in a page in a sequence with sequence Number . Now i want to add re-order /re-arraning functionaly .. but i can't use ajax reorder list because i have 5 hard corded texbox. how can i maintain the order in Insert/Update cases. And also suggest me control that i can use, another than ajax re-order list. coz i not using any list items i have hard corded items on the page.

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Forms Data Controls :: Datacontrol For Order And Order Detail - How To Fetch Record Based On Paging

Oct 22, 2010

I have two table Order and Order Detail.

What i need is i need to bind last 10 Order in Gridview/details view with paging, and the same order detail also fetch from database and shown in another gridview.. if user click any oderNo in first Gridview/DetailView then i need to show Respective order detail in anther gridview..

without postback coz we already fetch 10 order with orderdetails from the database..and if user click next 10 orderNo using paging then again we need to load 10 orderNo with respective orderdeatils from database like this going on....as well as let me know how to take print of particular oder and order detail....?

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Access :: UpdateParameters - Form Order - UpdateCommand Order?

Apr 24, 2010

From my testing, it appears that the order of parameters for the UpdateParameters must match both the order of the bound fields on the form (asp:Formview), and the order of the parameters in the UpdateCommand. Is that correct? If so, why do the parameters have names if all that matters is the order? I tried both asp:ControlParameter and asp:Parameter. Maybe the more relevant question is why aren't the names used instead of the order, particularly for the form order?

So, given I display the Identity field (CID), and need that for the update, I cannot get the update to work without including it in the UpdateCommand. Of course, since it is an autonumber field in Access, I cannot actually set it. So, I had to add another field to the db (lngUpdateCID) that I could set. That can't be how it has to be done, but I could not figure out another way to do this.

The relevant code is below:


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