Implement Selection Sort In Vb.net Using Recursion?
Oct 20, 2010
I am trying to implement Selection Sort in vb.net using recursion. Problem is that I keep getting stackoverflow if the array I want to sort is 1000 elements. I can't find the problem. I don't know much about stack overflow or how to check it. From my research the problem could be infinite recursion but I check for that and exit the sub.Here is the main code:
Public Class SelectionSort
Inherits DefaultSort
Public Sub New(ByVal num As Integer)[code]....
Everything inside the constructor is set in the base class "DefaultSort", except for the Sort(). The array is set using properties:
Public Overridable Property Arr() As Integer()
Get
Return _array[code]....
Everything should work as far as I know. It works on an array of 10 elements and an array of 100 elements.
i want to implement a sort of feedback form/survey form in asp.net which is linked to a database. i want to create a asp.net application which will take questions from a database then display them on the form. once the user has finished the survey the results will be stored into the database.
I'm using the RssToolkit for .net. I'm using an Httphandler to return rss feeds. The feedID is passed in as a querystring parameter. If no parameter is passed in, I would like to have the the handler return a feed that is an aggreate of some of the feeds that the handler can handle. What I'm wondering is, can the handler recurse?
I'm looking for a way to sort the rows of a datatable without setting the DefaultView.Sort to a specific column. I have a datatable in session that users can add records to. I want them to be able to sort the data by clicking on a button. But new records added after that need to show up at the bottom of the list until the sort button is clicked again.
Just spent about 8 hours googling and looking through this forum for a solution on how to make sure that I can dynamically sort. Here is the situation.
I have 1 Gridview that displays 10 different scenarios based on what button is clicked.
I am also returning only top 10 records. I am doing all of the data binding pragmatically. So I have BoundFields, HyperLinkFields etc.
I also want to sort some records. When I change DataSource SQL statement the gridview somehow remembers what the last sort value was and it errors out saying that value "x" cannot be sorted because it does not exists.
Here I get an error that says that the data source does not support sorting? Doesnt it say gridview1.allowsorting = false;
I also tried gridview1.sort("", SortDirection.Ascending); This does nothin... except query my database one more time because i have a onSorting event that looks like this:
[Code]....
Here is an example of just one of those SLQ statements inside GetSQLQuery:
I was making a function to convert all dates in an object to strings and when I used the following function I got a error in FF "too much recursion". (It also fails in IE and chrome)
function datesToString(obj) { if (obj instanceof Object) { if (obj instanceof Date) {
The problem is that rblNavigation.SelectedValue is not the value that the user has selected to trigger this event. How do I get the value the user has just selected?I'm using C# and this selection event is inside my MasterPage.
This may be a little more up the alley of our mvc fellows, but regardless.
First, I have the following model:
Csharp Code:
[code]....
Notes: RenderPartials is a custom extension method and that part works, as do the actual views. The correct data is displayed. Just not in the expected order. In fact, it mirrors the database.
Is it possible that once I have created a datatable programatically, I can then sort that datatable before binding it to a asp:repeater? I have a number of records that I have to get from a com object that has not been eliminated. The com object populates an array, then I loop through the array to pull data from my datatbase, adding the db data to the datatable. Then I bind the datatable to a repeater.
1) the array is multidimensional 2) The COM object doesn't sort the data by company ID (which is what I need to do)
This should be a fairly simple one. I am creating a dataset which will contain a description field which I would like to sort by. The reason I want to sort the dataadapter and not in my SQL is that I am already ordering by the results that have a particular value. My SQL looks like this:
SELECT pif_desc, pif_fund, psf_end, (CASE WHEN SUM(pmi_units) IS Null THEN 0 ELSE SUM(pmi_units) END) As fundunits FROM tbl_mem INNER JOIN tbl_sfunds ON pm_scheme = psf_scheme INNER JOIN tbl_invfun ON tbl_fund = tbl_fund LEFT JOIN pe_minv ON pmi_fund = pif_fund AND pm_member = pmi_member WHERE pm_member = @pm_member GROUP BY pif_desc, pif_fund, psf_end ORDER BY fundunits DESC
My VB looks like this:
Dim cmd As New SqlCommand("getMembersFundsDCGENST", conn) cmd.CommandType = CommandType.StoredProcedure Dim p_pm_member As New SqlParameter("@pm_member", SqlDbType.Int) p_pm_member.Value = pm_member cmd.Parameters.Add(p_pm_member) Dim p_period_closing_date As New SqlParameter("@closingdate", SqlDbType.DateTime) p_period_closing_date.Value = period_closing_date cmd.Parameters.Add(p_closing_date) Dim da As New SqlDataAdapter(cmd) da.Fill(ds)
I want to sort the datarows is ds.tables(0) by pif_desc but still have the rows with fundunits > 0 listed first.
How do you sort a dictionary object in C# 2.0 for asp.net or is their an alternative to Dictionay for sorting this is to sort a countries list alphabetically
I need to be able to sort by a product title and then by a products price, which is simple but I only want the title sorted on the first 3 or 4 characters. My client wants to add the brand name to the beginning of the product title and have them automatically sorted. I can a new field in the database called brand and sort by that, but wanted to know if this is possible. I've posted what I though might work but it doesn't
[Code]....
I guess this is probably possible with a lambda expression, but I've no experience with Lambda expressions at all.
I am using Visual Studio 2008 and SQL Server 2008, I have a drop down list on my page that gets its data from SQL. My SQL tabel only has 2 columns, "HeaderId" and "Header". So on my drow down list I have the value field set as the "HeaderId" and the text field set as the "Header". What I need now is that when it is bound to the list to be in order of the "HeaderId". I tried doing and ORDER BY but it did not work. What can I do, is there a better way of doing this? Here is my code to populate the list:
How to compare array in arraylist by name.I try many thing but no one works.public class myReverserClass : IComparer { int IComparer.Compare( Object x, Object y ) { ... }
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 a gridview in an updatepanel with sorting enabled and an event handler as follows:
protected void MyGridSort(object sender, GridViewSortEventArgs e) { var TheDirection = (e.SortDirection).ToString(); var TheColumn = (e.SortExpression).ToString();
I put a breakpoint just after these lines. Every time I press the column header, my variable TheDirection is always showing Ascending. Why is it not toggling from ascending to descending and back?
