I have a routine which populates a DataGridView. I generate the data on the fly in arrays and the populate the datagridview simply by saying
For each Row in DataGridView1.Rows
DataGridView1.Rows(row.index).Cells("PastColumn) = Array(row.index)
Next
I am not saving the data to log files. I only display the results at the end of my routine. When I close the project the data is lost.I am trying to understand why one would bind data. Would you do this in the case where you are saving the data to a file and you want the datagridview to update when the file is updated or loaded again at another time?
I am reading data from an API feed and saving the chunks into files. When the files reach 10 MB I start a new file and write to that file. What happens now is that an entry (<entry></entry>) can get cut off at the end of a file and continues into the new file. I try and reconstruct the files by taking the last entry and combining it with the first entry of the next file but this is tedious and was wondering for better suggestion on handling the data transmission and file creation.
The data stream is of variable sizes and where one request can return 60 MB of data the next can be as little as 2MB. I know the data stream will end with a token </feed>but my problem is the cut off data in between. I guess I could just make the max size really large and then hope the data is never more than that but then I have to work with large text files and reading in and parsing would be a problem.
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary> ''' The TreeViewDataAccess class allows the nodes within a TreeView to be ''' persisted to xml for later retrevial. ''' </summary>
I have multiple file upload boxes on a form in my mvc3 application. Request.Files shows 3 files when I put a break point in the below function and look at it.. Problem is other than coding a counter and using a select case I dont see a way to handle saving each file name to the database column it belongs to... Is there away to assign the variable on the fly I guess you could say So that the foreach loop would drop the file in the correct column. Ie handoutFile1, handoutFile2 , handoutFile3, Etc. As it stands the below will overwrite the filename in handoutfile1 every time the loop is gone through. I thought about throwing a counter in the loop and just put a select case on it to assign the db column based on the counter number. Seems like a cheap work around though. [Code]
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
I have a slight problem understanding how the following code works, it's specified in an example I have that the code is to check if FileName is a valid path for a text file and other things of course but I'm just interested in that part(checking it's a valid path). Here's the code:
We have to learn VB.NET for the semester, my experience lies mainly with C# - not that this should make a difference to this particular problem. I've used just about the most simple way to save a file using the .NET framework, but Windows 7 won't let me save the file anywhere (or anywhere that I have found yet). Here is the code I am using to save a text file.
Any way to save all files that are being downloaded trough the WebBrowser I've made in my Visual Studio 2010 to a specific location, by letting user to chose option save file without knowing where it saves. Or maybe to don't show the "save file" thing at all.
what is the correct way to archive my work? That sound pretty dumb. Let me try again. I begin a new project and design a form and then start adding code then save my work.Tomorrow I want to make changes to the project an design - how do I save and keep track of my form and code versions?
I am working with .net resources using LINQ to XML. I want to edit some resources, so I coded this:
Public Shared Sub AddTranslation(ByVal filename As String, ByVal name As String, ByVal value As String) Dim items = From translation In XElement.Load(filename).Elements("data") Where translation.Attribute("name").Value = name
[Code]....
This seems to work, and even when I debug VisualStudio says that the file changed, but actually it doesn't. I think the problem is in the Save() action, but I don't know other way to save it...
I'm having some problems with people saving text files using my program, but only people using Vista. Since I don't use Vista myself, I'm not sure what this is but it's not a problem on any machine running XP.
Note that my file saves just using the standard Savedialog box and Filestream/Writeline commands.
From what my customers are telling me, the save dialog comes up fine and there is no error as the file appears to save, but when they look for the completed text file, there's nothing there.
I am trying to learn XML, for which i have created a simple Employees Program. I want to save the records of the employee in an xml file, so far i have the following code:
vb Private Sub SaveRecord(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim XMLSettings As New XmlWriterSettings XMLSettings.Indent = True XMLSettings.IndentChars = " " XMLSettings.NewLineOnAttributes = True [Code] .....
This is only working for a single record, How should I insert more employees records within this xml file?
First time user on here, basically have been teaching myself VB and I enjoy it quite a bit! Basically I have a program now that has the File Drop-Down Menu with Open and Save options. I want to open and save in a .txt format. The open command will need to place the text in TextBox1 ; and the Save command will need to take the text from TextBox2 and save it as a .txt. I have gotten to the point where it will save it to a specified .txt file, but I would like the user to be able to "browse" the computer for where to open from and save files to.
I have to create a school reward system. Currently i have written code for creating user accounts and logging into the system. I have been able to write to the file i need to and i have been able to log in. However i can only log in for the first saved account. when i hover over the stored variable whilst stepping through it appears that unnecessary gaps have been added to stored information...User.stored username is the data structure type that i have stored information as...
I am working on saving excel objects to a directory of my choosing. I am able to use a folder browser dialog to select the save location and the saveas method within the excel interop and i am able to create a file in the folder i select with the name i choose. The issue is that when i later go to open that file it is blank. no workbooks no worksheets etc . Just a seemingly blank file in the proper location with the proper name.
It should be noted that if i single click on the report icon to open it the microsoft browser window does show a tiny preview of what seems like the correct report.
I am trying to generate several txt files- around 100(using a string) and I need to save them in a newly created folder(what i mea is: i have to create the folder too- to be a folder with the name of the current month) and each file will have a name taken from the database.
within my project i need to open and save some files. i wont go into detail as theres no need. what i need to do is open the files from the install directory, which could be where ever the user puts it! i also need to be able to open them whilst im building too. if i hard code the directory in then it will fail..obviously
I want to be able to take some user inputs and then using the 'filesave' write a vb code file which I could load and get the program to execute. At the minute changing 4 text boxes on the main form to 4 values entered on the values form (where the save button is). I've tried this code;
I am wanting to create my own version of MSN and I want to save rego information that the user can do just in frmRegistration to my server, what is the best way to do this?
What I am trying tot achieve is the following:User inputs data in one form that saves to the dataset table no problems. On an edit screen I want the current data saved to appear in this page within all the relevant fields but when saving I want this data to add to the dataset table as an additional line of data so the transaction records are kept.I want to add a new datarow regardless of it saving one change or all 7 changes that are possble.
e.g. Line 1 - user inputs 7 cells of data Line 2 - user amends 2 cells of data Line 3 - user amends 1 cell of data an so on. Unfortunately the terminology for certain items above may not be correct as I am still new to this programming and still on a massive learning curve.At the moment I do not have the code for what I am trying to achieve as I really dont know where to start with it.I am currently able to save the data and have it appear in the "edit" panel however only the cells changed are saved an it overwirtes the initial input.
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
A query concerning opening and saving a file.i have two commands, one the opens and another that saves [the same file].i'm using the StreamReader and StreamWriter methods.issue is this:if i comment out the open code, the save works fine.if i comment out the save code, the open works fine.if i let both run together, i get an error, usually with the save saying that the file could not be accessed. note, before anyone asks, i do close the file after saving or opening what could be the problem? open works fine, because it usually happens prior to the save, and then save process cannot access the file..?