Order By File Date In Collection?
Nov 10, 2009
I don't think the, System.Collections.ObjectModel has any sort or order by capability.
I have a list of files and I'd like to sort by the file date.
Dim list AS System.Collections.ObjectModel.ReadOnlyCollection(Of String)
list = My.Computer.FileSystem.GetFiles("C:SearchFolder" _
, FileIO.SearchOption.SearchByTopLevelOnly _
[Code]...
This returns the last file, but based on file name and not date. I think I need to add .OrderBy(... just can't get that part.
View 3 Replies
ADVERTISEMENT
Jan 26, 2012
I get the following string expression provided:"ChildObject.FullName" ...where ChildObject is an instance property on the MyObject1 type.ChildObject has a property named "FullName" and I want to sort a collection of type "MyObject1" based on this child properties "FullName" value.
I can do this all day long on properties directly on MyObject1 but I run into 2 challanges when doing it on a child instance and I can't get all the pieces working. The main 2 challanges are:
MyObject1 has a few different child property types so I can't hardcode the type for ChildObject. The string could be of any type.The sort expression is a String and not a known type.Above the value returned from the last line in the expression (if I run the code outsode the OrderBy method, does provide me the 'FullName' information I need. So the code must be close, but it still does not work.
Any ideas on how I can accomplish this? What I am trying to prevent is hardcoding a series of 'If' blocks on the child's type to then hardcode in its type to the sort or OrderBy method.
View 2 Replies
Dec 7, 2009
I am using the following to get an array of a directory. I was recently told that I needed to process my files in date order.
Dim filelist() As String = IO.Directory.GetFileSystemEntries(CustomerDirectory, ConversionWildCard)
For Each filename As String In filelist
'do conversion here
Next
how I can get the list of files in date order?
View 3 Replies
Nov 15, 2011
I have datagridview1 " order by data,Time" its working fine ,Now I am moving a row from DGV2 to DGV1 and how to override the Date,Time Order which is in DGV1 so only that row comes first.
View 4 Replies
Jun 6, 2012
I try to use "Order by" to order a list of Dates beginning by the earliest in VB.Net.The variables and methods are:
-Dim SetupStart As DateTime
-Dim SetupTimeList As New List(Of Date)
if it doesn't make any sense I would be glad if some one could show me how to order this list ascending by the earlist date.
View 2 Replies
Mar 21, 2010
I am having an issue adding posts to LiveJournal via the xmlrpc api they provide. I want to add entries older than what I have listed on LiveJournal already. But I get a response saying: "You have an entry which was posted at 2009-09-06 18:32, but you're trying to post an entry before this. Please check the date and time of both entries. If the other entry is set in the future on purpose, edit that entry to use the "Date Out of Order" option. Otherwise, use the "Date Out of Order" option for this entry instead." I haven't found an argument for the "Date Out of Order" option using the LJ.XMLRPC.postevent method.
View 1 Replies
Oct 15, 2009
I'm using VB.NET in Visual Studio 2008. I'm programming an application to take processing orders and give the total price plus the shipping date. I would like something like : shipping_date = Current_Date + 3 days but I know this doesn't work. Any ideas?
View 1 Replies
Oct 11, 2011
I am trying to copy the records from my WO table and trying to change the scheduled_date like. If I have already entered a work oder and scheduled it on 26-SEO-2011 when the next month comes it should give me message do you want to crate work oders when i press yes it should copy the those records which has current date and change it month e.g in our example 26-SEP-2011 to 26-OCT-2011 and save it but i am unable to perform this task and similer procedure will be for other saved records when their scheduled date come it should copy it and change the month and save.
This piece of code is on form load event
Private Sub QueryWorkorder()
Dim con As New OleDbConnection("Provider=MSDAORA.1;Data Source=(DESCRIPTION=" _
+ "(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=196.111.116.205)(PORT=1521)))" _
+ "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=Dummy)));" _
+ "User Id=PCHR;Password=PCHR;")
[Code] .....
And I am calling it on form load event. And I am changing the date from control panel and then running the project it didn't populate the message do you want to create record what should I do?
View 14 Replies
Aug 15, 2009
I'm trying to cycle thru the emails in an Outlook Inbox, but strangely, when my code cycles thru each individual email, the order of each in the FOR....IN.... loop is non-sensicle. The loop seems to start from the email in the middle of the list, cycles down to the end, then starts at the last email received and cycles down from there. When viewed in Outlook and sorted by latest email first and descending, the emails seems to be in order. This is my code:
[Code]....
Should I have to sort the emails first by received date descending? If so, how do I do that? If you look at my code, I have attempted that but it doesn't seem to work.
View 1 Replies
May 21, 2009
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
View 1 Replies
Oct 22, 2008
I'm trying to compare the modify date of a file vs the current system date. I've found an MSDN article describing how to get the modify time of a file:
Dim infoReader As System.IO.FileInfo
infoReader = My.Computer.FileSystem.GetFileInfo("C: estfile.txt")
MsgBox("File was last modified on " & infoReader.LastWriteTime)
This gest the Date and Time, but I want just the Date not the time.
View 6 Replies
Nov 1, 2009
I have a combo box bound to a datasource. I need to change one combo box (of many) to order the items in descending order.I'm guessing I could order the collection in the dataset, but that will mean all my combo boxes will be reordered?
View 2 Replies
Apr 17, 2010
I have a databound Datagridview. The DGV is bound to a datatable of a strongly typed DataSet created using the wizard. Is there any way to re order the columns before displaying them eg: the Columns are displayed in the DGV in this other Col4, Col6, Col3, Col1,Col5, Col2
But I want to it to show as Col1, Col2, col3, Col4, Col5, Col6?
I realise that the display order followed the Column order in the database table and by extension, the datatable. I have re-arranged the columns in the Database but the Datatable still retains the old order.
View 4 Replies
Apr 15, 2012
I have a Motor Class, along with a Collection to hold objects address. Each Collection object holds the Class fields as a String to display in list box. I am able to write the collection string to the file and save the string. But unable to open the existing file, read the file back into the collection object.
Public Class Motor
Private strId As String
Private strDescription As String
[Code]......
I have looked all over for anything (samples or tutorials for working with files and collection objects) pertaining to type of operation with out any success.
View 2 Replies
Nov 17, 2010
I am working on a program with multiple collections related to one another for a school project. Each collection needs to have its own defined properties and have the objects written (1 per line) to a text file.
I have all of that working.
When reading the comma-separated line from the file, I want to place one of the properties of the object in a listbox (so that all the objects' names will show up in the listbox). I think I have this part figured out...
My problem is that when you click on the name in the listbox, I would like multiple text boxes to be populated with the appropriate, corresponding properties of the particular object in the collection...is there a way for this to be done?
View 1 Replies
Oct 8, 2011
This might not be so 'VB' as it is 'SQL using VB' I have an application with a built in MS Access DB. I have a table that has a column full of integers, I shoot the DB a SQL "order by 'column name' " string and it returns the table ordered by my column of integers.BUT it returns them like this, and I want them like this
0 6
1 5
2 4
[code]....
How do I get the OrderBY to do a descending list starting with the highest number?
View 2 Replies
Aug 18, 2011
I'm working on the exercise page 73 (VB 2010 in 24 hours). It's basically a form with 2 text boxes, 2 text labels and a command button. It's really simple and uses this loop to cycle through the items, and tell me the name of them in a Messagebox
[Code]...
View 5 Replies
Sep 13, 2011
How do i put the words in a txt file in alphabetical order using code ?
View 7 Replies
Jan 15, 2010
Is it good practice to store sub-collections of item X inside a parent collection of item X for caching 'filter-queries' which are performed on the parent collection? (They won't be used together (as in color AND type).) Or is it also ok to just Loop over the collection and return the correct entities in a temporary collection?
[Code]...
View 1 Replies
Sep 7, 2011
I have the following classes:
Product, Service and OrderItem
Product and Service must inherit OrderItem. So basically I want to store OrderItem object in my shopping cart and these object are store in a list.
Public MustInherit Class OrderItem
Private m_enuItemType As TypeOfItem = TypeOfItem.None
Private m_strUserID As Integer[code].....
View 1 Replies
Nov 20, 2009
For a project, I need to extract all the frames of an AVI video. This I have accomplished by with free program. The problem: it took a 30 second clip and spit back 5400 some frames, and the image only changes every 20 frames or so. I really only need about 270 frames, but I didn't want to go through each one manually. So, I wrote a small program using Visual Studio 2008 and VB to open each image in binary and compare it to the one before that. If there is a discrepancy of more than 55000 (to accommodate slight errors in capturing), it leaves the file be. If not, it deletes it.
After much troubleshooting, I got it all to work. I ran it on the directory containing the images, but when it finished, only the first image remained. I checked into it, and found that the FSO loop I have set up to loop through each file was pulling the files in apparently random order. It will give me the image "bg(01).bmp" and then immediately "bg(1362).bmp" and so on. And the order changes every run.
I tried setting up an array to generate a list of all the files and then sort them, so I could pull off the name of the file, then the next one, ect. but it took over 3 hours to finish processing the array, and then It was using a huge chunk of RAM.Is there some way to "force" vb to pull off files in alphabetical order? here is my, code, it belongs with a form. fPath is a global variable, simply pointing to the source directory.
[Code]...
View 2 Replies
May 1, 2009
[Code]...
Loop 'Bottom of Main Program Loop 'Close the files when you are done with them
readerInputFileA.Close()
readerInputFileB.Close()
writerOutputFile.Close()
Else 'Path/file for one or both input files does not exist - message
[Code]...
View 1 Replies
Jun 10, 2011
i'm having trouble opening a text file to process and order the data in it. When i try to read the first line of characters an error message occurs saying: 'Variable words1 is used before it has been assigned a value.' I dont understand what i am doing wrong when opening the file. Also, I am sorry if this is a rather basic question.
[Code]...
View 2 Replies
Jan 14, 2010
I have to order a table following a logical order but I cannot find the appropriate ORDER BY clause.To simplify I have 2 fields field1 and field2
1 record : field1 contains �2� and field2 contains �1�
2 record : field1 contains �1� and field2 contains �2�
3 record : field1 contains �2� and field2 contains �2�
[code].....
View 16 Replies
Nov 11, 2010
I have an application running with a access db. I have written some code to copy & zip the db file to another location (selected by the user) for the purpose of backup. (I am using sharpzipwrapper)Whenever I try to run the code for the copying & zipping it gives me an exception saying that the file cannot be zipped as it is use.Do I have to close all open connections in order to backup the .accdb file? If yes then how? else what do i have to do inorder to get 'access' to the file.Do I have to exit the application to close all connections? These connections are written in code for e.g. :
dim
cnStudent as
oledbconnection
[code].....
View 5 Replies
May 18, 2009
i understand that i need to have plug in for vb in order to use .swf file to do flash on Vision studio 2005. can anyone let me know where to download that component for this.
View 4 Replies
Feb 8, 2010
I have been researching for a couple of days now and to no avail. Does Anyone know how to make a custom collection that take advantage of the collection editor? I would like to be able to have 3 Color Values, 1 Boolean and 1 String.
View 15 Replies
Nov 16, 2009
I have a program in which I display a list of files in a ListView control and then send them all to a printer. I verified that the file is getting from the list to the print routine;however, I cannot seem to get the print function working right. I have tried several methods after reading many forum posts and articles to no avail. I listed my print routine below for reference; I send the file to the ReadFile sub that programatically creates the Print Document and then calls the Print page event. All in all rather simple, but I keep gettting about a dozen lines of blocks and arbitrary characters and then my document starts printing. I thought that by defining the SizeF structure in the MeasureString method and the RectangleF in the DrawString method I would clear up the problems
Private Sub ReadFile(ByVal _pfile As String)
Try
'Dim fs As FileStream
[code].....
View 8 Replies
Jan 17, 2010
Notice that some files use vbnewline, some use unicode encoding, and so on and so on.
View 1 Replies
Dec 17, 2009
Im trying to build an order form application that pulls information from a msaccess file.The form has 3 Textboxes labeled 1,2,3 etc//The first one is a product code, the second a description. i would like to be able to type a product code into box1 and on pressing return it populates box2 (the description).
View 2 Replies
