Sorting Files From Directoryinfo By Date In Asp.net?
Oct 12, 2011how can I sort (not filter) directoryinfo files by date (oldest to recent) ? I am using asp.net and visual studio 2008
View 2 Replieshow can I sort (not filter) directoryinfo files by date (oldest to recent) ? I am using asp.net and visual studio 2008
View 2 RepliesI am populating a datagrid control using files in a specified path (DirectoryInfo).I would like to filter the files based on a user specified date range (start date & end date). While search S/O, I found this post, but I am getting an error on DateComparer ("'DateComparer' is a type and cannot be used as an expression.")
Here is my code:
Dim dirInfo As New DirectoryInfo(strDirectoryPath)
Dim dStartDate As DateTime = "03/01/2011"
Dim dEndDate As DateTime = "6/30/2011"
[code].....
I'm looping trhough some files in a folder, is there any way to arrange them by filename alphabetically?[code]
View 6 Repliesi am trying to get files name, modified date in a folder Before i get those files, can i pump a command by using vb to the folder and make them sort by modified date?
View 6 RepliesI have a Datetimepicker, when i select a date it brings up in a listbox all the files created on that day but in no particular order. So i wanted it sorted by when they were created (not to fussed either ascending or descending). i tried using the code below with no luck, This adds multiple of blocks of the same files on the selected date
[Code].....
i use data grid view in couple of my forms, i want to sirt there by date, but the datagridview of these forms take in two dates as well, a from date and a to date., and both are displayed side by side. eg feb 01 2010 - feb09 2010 and therea are more like this. the grid takes in couple of values like this
View 2 RepliesI'm trying to pull a table from an SQL database and sort it on the "Date From" (DtFr) column, which represents the start of a lease. I thought it would be as easy as this:[code]......You were right about the string value. I added a data column called sortDtFr to the datatable and gave it System.DateTime as a datatype and iterated through the rows setting the new column's value equal to the old one casted as a Date. Here's the code for those interested:listing all drives with GetLogicalDrives()..I am getting ( A:. C:, K: )
View 1 RepliesUsing the System.Windows.Forms.DataVisualization.Charting objects/namespace, am having problems getting by chart to sort axis of dates properly.My data looks like this (dates in US format):
Product Quantity SaleDate
A -- 2 -- 5/1/2011
B -- 1 -- 5/1/2011
C -- 1 -- 1/1/2011
B -- 2 -- 2/1/2011
I'm creating a stacked column graph like this, where dv is a dataview of the datatable:
vb.net
chSales.DataBindCrossTable(dv, "Product", "SaleDate", "Quantity", "") chSales.AlignDataPointsByAxisLabel() For Each cs As Series In chSales.Series cs.ChartType = SeriesChartType.StackedColumn cs.YValueType = ChartValueType.Int32 cs.XValueType = ChartValueType.DateNext
So this produces a stacked column graph with 2 A's, 1 B in May 11, etc But the date order is Feb, Jan, May, regardless of how I sort the datatable provided to the chart.
My DataGridView is not sorting my date column correclty and it doesn't seem to be sorting it by String either. The column is bound to a date property, all is done using the designer.The set which I'm viewing it on is 424 entries long, there should be two entries for each date and they should be next to each other (regardless if sorting by date or string)The last few dozen entries are sorted correctly but the initial entries are not.Initially every second entry at the start is correct. Here is an extract if some of the sorting it does.(The beginning of the sorted grid is on the left, and the end of grid is on the right)
View 1 Repliesi need to sort out rows having todays date in the datagridview in vb.net 2008
View 1 RepliesI have a number of records being displayed in a data grid view, but I want to be able to sort these records via the date. Clicking at the top of the column just sorts them in relation to the first number of the date.
View 1 Repliessorting list of files in a folder. Below is a snipet of code from a program. The logic is dependant on the files coming in in alphapetical order. I did post about this earlier but I got pulled away and did not get a chance to follow the thread all the way through. The code is complete and it works. However I know it is not guarenteed to pull in alphabetical order so as my final step I wanted to sort the list of files. I thoughr using the array.sort command might work but I am not sure how to use it.
sLine = SetupNames(0)
Dim di As
New IO.DirectoryInfo(sLine)
[code]....
I am facing issue sorting my grid view on date column in ascending order.
Private Sub SortGridView(ByVal dt As DataTable, ByVal col As String)
dt.DefaultView.Sort = col & " DESC"
GridView1.DataSource = dt
End Sub
Where col is "date" and dt is the data table to sort
For my programming class we must make a word guessing game with scoring for a project. We aren't required to log top scores or anything like that, but I would like to learn how to for future references. I've looked around and all I've found was ways to log in Excel and SQL servers, which I don't have the ability to do at school.
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I am still trying to accomplish a tiny flatfile based database. So far everything works fine except for the fact that 'data records' are not sorted alphabetically. My 'data records' are saved in files and their filenames are used as ID. Now all the data are stored iin the files, so, my application reads out the values and adds them to the 'database'. Unfortunately, I couldn't find any way to sort this added data alphabetically by name - everything else works perfectly and I am almost finished, except for the sorting.
[Code]...
how to sort the group of files in the directory using Hashtable by values?
i'll have more than 500 no of files in the below format:
prod_orders_XXX_<TimeStamp>.dat
XXX = symbol of the product and the length may varies.
<TimeStamp> = date and time
Multiple files for the same XXX are possible with different time stamps.
Here are some examples:
prod_orders_abc_20122001083000.dat
prod_orders_abc_20122001083111.dat
prod_orders_xyz_20122001093157.dat
[Code]......
I have posted a similar question before but this time i need this specificly using Hashtable.
Program : my game is a frogger port, you make the frog cross the road until you run out of lives. When you die, you are asked to enter your name and the name is appended to the end of file called names.txt, the final score is appended to the end of a file called scores.txt.Using the System.IO functions, i read the contents of each text file, and load the contents into two separate strings (one for names, one for scores. These two long strings are then broken down using Split() command, transferring the pieces into an array. (again 2 arrays - one for names, one for scores). The contents of both arrays are then loaded into 2 listboxes, 1 for scores, 1 for names.
Problem: i can sucessfully load the contents of both files, and display them side by side - but i want to re-arrange the scores so that they are in descending order. While doing this, i need to make sure that the player name matches up with the score - so the order of the names being displayed would have to be changed aswell. After spending many, many hours trying to do it myself i have had to give up - i'm clueless. My first issue is converting the score array into integers so that the array could be sorted, the second problem is then sorting the names so that the scores and names match up.
This is the directory path to different costumersDim info As New DirectoryInfo("C:Customors")During execute of the program i want tot change the path for the specifiek custumor.The custumar name is stored in a textbox txtCustomarName
View 2 RepliesWhen I use the code Dim di As New IO.DirectoryInfo("C:")it works fine, but when i use a string variable named "infos" i.e.Dim di As New IO. DirectoryInfo(infos)which takes an input from user, it gives me an ArguementException "Illegal Characters in Path".I tried replacing the variable, checked its value in the msgbox which is fine, but the double quote is added directly when it executes the IO.DirectoryInfo line and throws an exception. (Check the attachment)I have also tried infos.Replace("""",String.Empty) to remove the possible double quote, but it still holds that double quote.And when I use the same variable "infos" with substring to get the Drive, it works fine
View 27 RepliesI'm making a timer program, that I want to be able to store "unlimited" timer profiles, that someone can load and use. Now I've created a form that you fill with data, which then gets saved to a .xml file in a pre-defined directory. I'm now working on some sort of code that will:
1. Search the directory for .xml files
2. Find any .xml files and convert names to strings
3. Store the strings in a dropdown menu, so that when one is chosen, it loads that profile.
I think I have 1 down:
System.IO.Directory.GetFiles("C:Simple Timer")
Dim di As DirectoryInfo
di = New DirectoryInfo("C:Simple Timer")
di.GetFiles("*.xml")
First I want to tell u all I am an absolute beginner at using VB.NET and other programming languages and am going to start learning VB.NET.What I am trying to accomplisch I couldn't find trough Google I am trying to make a Windows GUI based tool in VB.NET (2010) which deletes files by fileage with some other settings.I have a Form1 with:
TextBox1 - Where I have the output of a slectfolder button
TextBox2 - Where I want to input the File Extention (comma seperated)
DateTimePicker1 - Where the date can be set to delete files before that date
Checkbox3-5 - FileAttributes (Hidden, System and Read-Only)
CheckBox1 - Run in SafeMode (No delete takes place)
This is the delete script I made
For Each file As IO.FileInfo In New IO.DirectoryInfo("C:YourDirectory").GetFiles("*.txt")
If (Now - file.CreationTime).Days > 160 Then file.Delete()
Next
[code]....
If I want to bind the files of a folder to a gridview, I can just do this:
GridView1.DataSource = New DirectoryInfo("C:MyPix").GetFiles
GridView1.DataBind()
...And this asp.net
<asp:GridView ID="GridView1" runat="server">
[Code]...
...But if I want to bind it to a repeater in stead, I would think I could display the filename like this:
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate><%#Container.DataItem("Name")%></ItemTemplate>
</asp:Repeater>
...But that gets me the error "No default member found for type 'FileInfo'."
Problem is that i cant convert to string
Dim path As String = "......Tier1 downloadsCourseVB"
If countNumberOfFolders > 0 Then 'if there is a folder then
' make a reference to a directory
Dim di As New IO.DirectoryInfo(path)
Dim diar1 As IO.DirectoryInfo() = di.GetDirectories()
[Code].....
How can you convert DirectoryInfo such as a GetDirectories into a string. I can run the following just fine.
For Each m In Movies
lbMovies.Items.Add(m)
Next
But I really want to store something like m.GetDirectories.ToString into a structure I've built.
How do I (i) sort the array of type FileInfo returned by the DirectoryInfo.GetFiles method by (file) CreationTime in descending order and (ii) once the array is sorted efficiently load it or convert into a Queue object (of type FileInfo) for subsequent processing. I thought of using the queue object as it handles things on a FIFO out basis and I'll be adding to the queue as new files arrive.
View 4 RepliesI need to count the number of files in a specific folder. The folder I need is in the directory path of ApplicationData. The only method I could think of to grab the path, is to combine it via a string, like this: vb.net
[Code]...
I have a project where I am looping thru specific files in a directory using a For Each FileInfo in DirectoryInfo.GetFiles() statement. My question is if I overwrite the current FileInfo object, will it still retain the reference to the object even though the file is no longer the same?
Code Snippet:
For Each fi In folder.GetFiles("*.idx")
Dim reader As IO.StreamReader = fi.OpenText()
index = reader.ReadLine()
values = index.Split(",")
[code]....
I am new to programming. I wrote this simple code but it seemed not working at run time. I mean not selecting particular file extensions when I am selecting the particular radio buttons. By default each radio button is set to false on Checked property. Also there is no syntax error.
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I'm having my program sort an excel sheet by a few columns. However, it is only sorting by the first column not the rest that I specify.ere is my sort code below:
myRange.Sort(Key1:=myRange.Range("A:A"), Order1:=XlSortOrder.xlAscending, Key2:=myRange.Range("G:G"), Order2:=XlSortOrder.xlAscending, Header:=XlYesNoGuess.xlYes, Orientation:=XlSortOrientation.xlSortColumns)
[code]...
I have a WPF ObservableCollection which is bound to a ListBox and I have a Sort() method which when called will convert the ObservableCollection to a List(Of T), and undertakes a sort based on a date/time column within the collection.
The data is sorted, even when new items are added to the ObservableCollection, however the date/time isn't being correctly sorted. The data is sorting based on the date however it is very much random when it comes to the time portion. The following is an example of the outcomes I am experiencing:
[Code]...
Is there anything that I am doing incorrectly in this method that would cause the time portion not be included in the sort? Is there a better way of doing a sort?