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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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.
The AjaxToolkit has a ReorderList. I'm searching for a jQuery solution that does the same and found this page. I would like to change the order of divs (vertically) and upload the new order to the database (ajax).
View 2 RepliesActually i want to ask which is the best for sorting in Asp.Net is it DataView.Sort Method or List<Object>.Sort() method.
View 1 RepliesI try to sort a dictionary with no success
this code i wrote
var sortedDict = _GrandTotalUserDictionary.OrderBy(key => key.Value.Priority);
the dictionary looks like
"key1", new OrderItem(){title:'a', priority:1}
"key2", new OrderItem(){title:'b', priority:3}
"key3",
new OrderItem(){title:'c', priority:12}
I have 2 tables with a relationship by EmployeeID (Employee, Cases)
The relationship name is Purchases (ie employee->Purchases), and iterating through it gives each row in order by date (entry order perhaps?).
There could be thousands of rows, so I want to present this collection in reverse date order.
Would I have to define a provider or repository to call instead of just Employee->Purchases?
I am wondering if the aspnet_Users table is always sorted (by UserName) even if I add new users which are alphabetically between two already existing users.
I've noticed that the method Membership.GetAllUsers() always seems to return a sorted collection of MembershipUsers.
Also when I look into SQL Server Management Studio and run a simple SQL query without ORDERBY clause...
SELECT [UserName]
FROM [MyDb].[dbo].[aspnet_Users]
...I get always a sorted result list.
I'm still very unfamiliar with SQL Server but I expected that when I add a new row to a table it is (physically) appended to the end of the table. And when I run a select statement without ORDERBY the rows will be selected in the order they were initially inserted into the database (so without any specific sort order).
I am wrong I guess. But how does it really work? Is it perhaps something special with the aspnet_Users table?
I am happy that the MemberShipUserCollection returned by GetAllUsers() is sorted but is it always guaranteed?
Update
I've just noticed that the database contains a stored procedure called aspnet_Membership_GetAllUsers. This procedure actually contains an ORDER BY clause by UserName. So if this stored procedure is indeed always called when I use Membership.GetAllUsers() in my code (at least if I am using the SqlMembershipProvider) it explains why the collection returned by Membership.GetAllUsers() is sorted by UserName.
Remains the question: Is Membership.GetAllUsers() actually based on this stored procedure?
How do I sort a data table based on a particular column which has integer values in ascending order?
I wrote this:
leadtable.DefaultView.Sort = "Id"
But it doesnt seem to work, it displays fine but when i get try to get the values of the sorted datatable in an array they dont come in an sorted ordere Datatble is defined as:view plaincopy to clipboardprint?
My webGrid is working perfectly fine. However, I would like the default sort order to be in the opposite direction. If it were SQL, I'd be adding a DESC somewhere. Here's my working line of code:
[Code]....
It correctly sorts on the UWDate column, but I would like it to sort the opposite sort order. Of course, once it is displayed, you can click on the title and it will resort at that time.
How to sort the dataset Values in Descending order , I have Followed the following way
decimal Length = 94;
decimal Width = 7;
decimal Height = 13;
DataTable dtCarton = new DataTable();
[Code]....
I have the following code for a gridview. When I click the Header, it can be sorted by ascending order. But if click the header again , it is still ordered by descending. What I want is that the sort order can be reversed when click the header again. How to do that?
protected void gvList_Sorting(object sender, GridViewSortEventArgs e)
{
DataTable m_DataTable = (DataTable) Session["gvListDatasource"] ;
if (m_DataTable != null)
{
[Code].....
Here's my gridview when it comes it it's sorts on Age. Sorting is available for all columns/headers. How do I make the sort order to change on the ddsrpt sort to desc order when it's clicked?
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource7" EnableModelValidation="True" Width="789px"
CaptionAlign="Top" Height="126px" BackColor="White" BorderColor="#DCBE68"
BorderStyle="Solid" BorderWidth="1px" CellPadding="4"
HorizontalAlign="Center" CellSpacing="2" Font-Names="Arial"
AllowSorting="True" EmptyDataText="No Records" DataKeyNames="FO,CLMSSN">
[Code] ....
I got this error message - Gridviewsortdirection is not declared
For our website, we have decided we would like to maintain our user passwords as encrypted binary data in our database. We are using ASP.NET 3.5 to host our site and SQL Server Express 2008 for the database, both running on the same server. When a user logs in and submits a username and password, there will need to be some sort of encryption or decryption in order to verify the credentials. To me, it would appear that there are 3 ways to do this:
1)[C# Encyrption] On User creation, perform encryption in the Web App and submit the encrypted password to the database. To verify credentials at Login, perform the same encryption on the submitted password and ensure that it matches the value stored in the database.
2)[SQL Encryption] On User creation, submit the plain-text password to the database and have it perform one of the SQL encryption variants during INSERT. To verify credentials at Login, have the database perform decryption on the password during the SELECT statement, and compare the plain-text submitted password to the one in the database.
3)[Mix] On User creation, submit the plain-text password to the database, and have it perform one of the SQL encryption variants during INSERT. To verify credentials at Login, perform the same encryption algorithm used by SQL on the submitted password ( is this possible? ), and ensure that it matches the value stored in the database.
Does anybody have an opinion as to which of these options is best? Number 1) is the most familiar to me, and would be the easiest to use with LINQ to SQL ( which is our current data model ), so I am leaning towards that. But if there are better options I would love to know about them.
I want to orderby the list. Today date is on the top and then next date and all dates but when today date is passed then it comes on the end of the list. Is there any formal query in linq or some other code is used to achieve this?
08/01/2015
09/01/2015
but when today is passed then it automatically go to end and next today date is on the top
How do I sort a data table based on a particular column which has integer values in ascending order?
I wrote this:
'Sort the datatable based on sequence id leadtable.DefaultView.Sort ="Id" But it doesnt seem to work Datatble is defined as:
[Code]....
I have a datatable,columns are(User_id,Name,Address,DOB)
values like(12,abc,delhi,22/2/2000)
(14,pqr,mumbai,13/3/1989)
(8,klm,banglore,17/5/2001)
(9,asd,pune,12/9/1999)
Now I want to sort these rows on DOB in descending order..how can i do so?
1 My DataTable Return following Data
Acct Books Annual
Acct Books Monthly
Acct Tax Income Tax
Admin GH Eqpt
Admin Offc Eqpt
Admin Offc Misc
Admin Offc Eqpt
[code]...
I wrote two control extenders that need to be placed always in the same order. Is there any way to make VS always place them in the correct order?
The only solution i found was to place them in a central repository keyed on the target control ID on their init stage - and then have each of them perform its work through that repository rather then directly. but this looks like an overly complex solution for me.
I have been struggling with this problem for a long time. Does anyone have any clue about this problem? I created a gridview and set the allowsorting to true. This gridview has four columns: Name, Position, StartDate, and EndDate. I want the gridview to be sorted on the EndDate.
Inside of the save event, I called the BindGrid() function to rebind the datasource to the gridview. The changes will shown immediately, but the problem is that the records are not sorting on EndDate. I have to refresh the page manually to get the view sorted.
<asp:GridView ID="gvInfos" runat="server"
CheckBoxEnabled = "true"
ShowEmptyTable = "true"
AutoGenerateColumns = "False"
CssClass = "gv_white"
DataKeyNames = "Id"
GridLines = "None"
Width = "100%"
AllowSorting = "true"
>
<Columns>
<asp:ButtonField CommandName="Select" DataTextField="Name" HeaderText="Name" />
<asp:BoundField DataField="Position" HeaderText="Position" />
<asp:BoundField DataField="StartDate" HeaderText="Start Date"
DataFormatString="{0:Y}" />
<asp:TemplateField HeaderText="End Date" SortExpression="EndDate">
<ItemTemplate>
<%# (((DateTime)Eval("EndDate")).Year == (DateTime.MaxValue.Year) || (DateTime)Eval("EndDate") == null) ? "Present" : ((DateTime)Eval("EndDate")).ToString("y")%>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I am having an unordered list like:
<ul style="list-style: square url(Images/rssIconSmall.png)">
<li><h3>All Items</h3></li>
<li>Item1</li>
<li>Item2</li>
<li>Item3</li>
I have class like
public class ProgressBars
{
public ProgressBars()
{ }
private Int32 _ID;
private string _Name;
public virtual Int32 ID {get { return _ID; } set { _ID = value; } }
public virtual string Name { get { return _Name; } set { _Name = value; }}
}
here is List collection
List<ProgressBars> progress;
progress.Sort //I need to get sort here by Name
how can I sort this collection by Name?
I have a class called Questions. This Questions has properties QuestionID and QuestionAnswer. My list of Questions has QuestionID like 2,3,4,15,12,24,22,,,, etc I need to sort this List of Questions Object based on QuestionID and store in another Questions object.
View 2 Repliesthe specific example i am referring to is this site [URL] notice the sort by drop down list. basically i want to sort products according to price,name,popularity? do i have to requery the database and retreive the sorted data in gridview again, or should i already sort the items in the gridview that are already there? I tried to this but its the wrong approach, basically i was trying to repopulate data in the page load event, which was giving error.
View 2 RepliesI retrieved values from database to drop down ,how can i make them as sortable.
View 5 RepliesI 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?
