Is there a preferred method of creating a file with multiple sections? For example a program for a small retail business that might include different categories of sales, etc.I've come up with a primitive way of separating sections of a text file, which I can read and write right now, but I'm not confident that it will always work. I have a feeling it could produce an error down the road.
View 6 RepliesI'm making a program in C#, but I want to test out part of the program I'm going to integrate into it in VB, and what I want to do is divide a file into sections. The files range from 60mb to around 180mb, and I know that it is really hard to open files of that size, so for my app I want it to divide the file into smaller sections and put files in a folder temporarily so It could just read them from there. And I want to break it down to about, 5-10mb per file.
View 1 RepliesI have 3 web methods in a WCF, called 'DeleteGroup', 'AddGroup', 'ModifyGroup'.Each method has its own code. I want to place a lock on code within each method, so that only one method executes at a time. For example, if 'DeleteMethod' is being executed then no request for 'AddGroup' or 'ModifyGroup' can be executed. So may be I could use something like what is below, but not very sure ? Also, where in the WCF would I declare the locker object, and would it be private, public or static (i.e. shared)?
SyncLock locker
--Delete Method Body
End SyncLock
[code].....
I have a code that writes down # and the date, for example:#5/13/2012..Into a text file. The thing I need is to be able to do something like this:[code]Cal is the file that I want to read.DaySel is a date/time picker.
View 6 RepliesI am trying to write a Function which will return a data table, filled with a data from a database.
The Function will accept 6 diffrenet parameters as Optional. Each one of them will be an additional condition to be added to a where clause, if it`s provided when the function is beeing called.
Is there any method in .NET to simply add a new condition to the where clause?
I'm currently trying to add all the sections of a specified .ini into a combobox. Here is my current
sPath = Application.StartupPath & "Settings.ini"
For Each SectionName In INIRead(sPath)
ComboBox1.Items.Add(SectionName)
Next
But that returns this in my combo box:
Now that's my section in the .ini, but it's scrambled and placed into multiple lines. I just want it on a single line as said in the .ini.
I am a novice programmer and would like to create a program that will divide the user desktop screen into 2 sections such that one bigger section of around 90% screen size is left for user to work with other windows that when maximized should not ovelrap the other 10% section which will hold some other information that will always be static on the user's screen.I am using vb2008.
View 3 RepliesI'm currently trying to add all the sections of a specified .ini into a combobox.[code]Now that's my section in the .ini, but it's scrambled and placed into multiple lines. I just want it on a single line as said in the .ini.Does anyone have any idea how to get values between brackets "[hi]" and place the value between the brackets into the combobox items?
View 7 RepliesI'm running several different automated processes and when I get done with them, I show the results in a form with various controls.
In this form, I use Panels, Labels, TextBoxes, and TreeViews, and ListViews to display a wealth of information.
When the automation part is done, I want to be able to log this info and save that log file on the User's PC.
I thought it would be best to make a custom file extension and then hash it with MD5.
I'm pretty sure I can get all of that done. The problem is that I'm not sure how I would load that info back into the application.
Since the log files will appear on a seperate form, I can't just load the data back into the original controls.
Would it be best to create a blank template of controls and then load the data into those controls? Or is there a way to save content "as is", controls and all?
i made downloader that will display the following items to the user. The Name of the file that the user is downloading The Url Were the file is being saved The Size of the file The speed at which the file is being downloaded And the Status. But the Problem is that the downloader can only download one file at a time. How can i make a multiple file downloader Which if the user wants to download 2 or 23 files he can.
View 13 RepliesI am trying to use the BGW to save a DGV to excel file, but don't know how to do it correctly, specifically setting the savefile name this code doesn't work gives me:
'System.Runtime.InteropServices.COMException' occurred
- Make sure the specified folder exists.
- Make sure the folder that contains the file is not read-only.
- Make sure the file name does not contain any of the following characters:
Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is attached to the process. I also tried doing the Save in the BGW RunWorker Completed event but then there is no file name. It seems I need to pass the file name the user inputs in the SaveFileDialog to the BWG WorkerCompleted event somehow
Private Sub excelexp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles excelexp.Click
ProgressBar2.Visible = True
Saving.Visible = True
Dim saveFileDialog1 As New SaveFileDialog()
[Code] .....
This is my first 'serious' VB2008 project. Attempting to write a comma separated file. vis:
[Code]...
Is there a better method for outputing the data, rather than having to concatinate all the elements into a string and then writing it? In the 'good old VB6' days a Print statement followed by each value and a separator would do the trick. I can't seem to find the appropriate override for the WriteLine method.
I am creating files and then allowing the User to browse through the files via a ComboBox. I decided to name each file the current date. In order to create multiple reports each time the application is ran, each report needs a unique name.
The idea is that if they run a report once a day they'll have a unique report each day. But, then I realized that it is feasible that User could run a report more than once a day. So, I decided to create an integer and increment it each time the report has been ran. Then append the file name with that integer. So, report one of that day would show something like this:
12-22-2009_1 and so on.And this works just fine. But, if the user decides to close the app and then run the report later that day, the variable has been reset and no longer works as needed.I'm using a StreamWriter to create the file.
Im doing a FileStream.Write to create a file on a local computer from a file I download from the web.
qq1 =>how can I change the version property of the file after writing it or while writing it?
qq2 => and how can I check the version property of the file?
I need my app to create a excel file, but I am getting a error running this code. While running this in debug, on the line "xlWorkSheet.SaveAs("C:vbexcel.xlsx")" there is a error saying "ComException was unhandled" and "Exception from Hresult 0x800A03EC"
Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles Button1.Click
[code]....
When in VS 2008 if a developer hits the ''' it generates the XML comment tags for you, but this only works when the project setting for "Generate XML documentation file" is checked. Is there a way to tell VS to generate the XML Comment tags, regardless of the project setting? I think it is possible that someone may want comments but not create a XML documentation file. In this case I am exceeding the current Team Settings, yet other developers don't want me to change this project setting. This forces me to flip this back before checking in the project. I have the same problem with other Project settings like "code Analysis". This is only a problem for VB.NET projects.
View 4 RepliesI am trying to create a load and save function for my customizable Menu/Tool/StatusStrip controls (see signature). Those three controls use a single AppearanceControl class, which is mainly just a large list of properties (Colors) which control the colors of the Menu/Tool/StatusStrip.
I want to be able to save and load the values of these properties so the user can store them and load others with ease. Serialization seemed the obvious answer, although I never used it before.
Now, there is a slight problem that I cannot serialize Colors, so I simply gave each Color property the XmlIgnore attribute, and created an Integer property that gets and sets the Color property (using Color.ToArgb and Color.FromArgb). This way I can serialize the color properties succesfully.
Then, there is another problem. The properties are not all in the AppearanceControl class. Instead, the AppearanceControl class has a large number of subclasses, which in turn contain the color properties.
As a small example, I may have this:
vb.net
Public Class AppearanceControl
Private _toolStripColorProperties As ToolStripColorProperties
Private _menuStripColorProperties As MenuStripColorProperties
[Code]....
I'm going to try this again since last time I asked (a long time ago now) I didn't get many responses. Maybe someone who knew didn't see my post or maybe someone new is around who might know. I want to add a file drag and drop feature to my program that allows people to drag files onto my form and when the files are released on a path (that is stored in a listbox) it moves/copies the files to that folder. I have all that working but what my issue is that each file has to be handled individually.
Now, Windows can move multiple files all in a single group; it calculates time till completion based on the cumulative size of all the files and shows a progress bar in that way. Currently, all I can do is either let it happen, or show a progress bar for each file. Does anyone know how to get files in an array of files to drop to display like Windows does with multiple files when moving or copying.
vb
Public Class download
Public Event AmountDownloadedChanged(ByVal iNewProgress As String, ByVal rowno As Integer)
[Code].....
How I can download Multiple file's using multithreading and
How I will display progress report in Datagridview Column ("Progress")
I have 3 tables: Customer, OrderHeader and OrderDetail. Customer and OrderHeader joined by CustomerId, OrderHeader and OrderDetail joined by OrderId.how to create an xml file that combines these 3 tables together having the following structure using ADO.net?
[Code]...
i have a text file which contain 149000 Words 1 Word Per LineI want to Search Words Who end with "sd" or something else i am using a listbox in which i load all text and then search for it i don't want to know how to search directly from text file listbox method take too much time?
View 8 RepliesI need to be able to search through a text file and find a line of text, then delete that line and the 7 previous lines and also the line following the searched line. Basically the program creates student records to a text file and asks if the user wants to mark the record for deletion then when the user exits the program, I want it to find the records mark for deletion and delete them.The records in the text file look like this:
Name: Some, Students, Name
Age: 20
Phone Number: (555) 555-5555
[code]....
I'm sick of my EXE files only looking decent in one view in explorer (ie List or Tiles etc) because I can only figure out how to specify one icon file for my projects so it has to be a specific size and if its too big it looks rubbish at smaller sizes in explorer, and vice versa if its too small. So how can I embed more than one icon file and make it automatically select the correct one to display in explorer depending on the view? I believe you can store more than one icon in an ICO file, so do you have to just combine the various size icons into one ICO and then explorer will automatically select the correct sized on? Or is it something you have to do within the VB project?
View 7 RepliesSorry if this seems like I haven't searched, however I have. Maybe I'm not understanding something or maybe I just haven't found what I need. Anyway my question is this. How would I find multiple strings in a text file and replace them? So far I've been able to find out how to replace a single string with:
[Code]...
I have a *.txt file which contains instructions and data, with its own comments (preceded by ! ), blank lines, and each instruction begining on a new line, but occassionally using two lines. Each instruction consists of several feilds seperated by a TAB. Finally each instruction ends in a comma. Only a few different instructions are there (10 different ones) but there are many of each. Spanning a good 2500 lines. Comments and blank lines are obviously of no interest to me. I merely need to read the instructions and the data that follows it.
Now, I have successfully used 'System.IO.StreamReader.ReadLine' to go through it line by line, picking out lines begining with certain strings (first 3 characters of a known instruction). All good, I can 'lift' out the lines of interest and store them, for them to be split up later (seperating their fields into instruction, data, etc..) and then into an array.
The problem is, since some of the data fields in these instructions are so long, it spans two lines, before it ends with a comma. Using the above method, I end up with two array entries for a single instruction, since I have stored individual lines rather than a complete instruction. The only similar situation I can tihnk of to explain this, is to pick out sentences in text, and store each one in a string. Of course these end with a period (full stop) but span two or more lines.
I am hesitant to post an example, since its formatting is rather strange, but it is generated that way from 3rd party software, so I cannot change that for my software application.Perhaps there is no 'graceful' way of doing this, meaning I would have to find a way of 'adding' the second line of the instruction, to the string of the first line. Or perhaps reading each line character by character, literally storing every number/letter until I reach a comma.
To get pass the cross referencing error when running a thread, I use this code
[Code]...
But the AddressOf doesn't accept parameters... So how do I get pass that? Or is there another way to use delegate?
I have multiple forms and reports with different print area. Some are designed to print to a thermal label printer and others to department shared printers. Currently the user is able to change the printer in print dialog box and print to differernt printers. I want to be able to create a form where the user can assign different printers for different jobs and not have to worry about it.
The problem is, i have never worked with printing function and my collegues arent too smart so I was wondering if someone can throw me ideas on where to start so i can start googling for it.
i have published my project and exe file has been created....
now i want to make a installer with some other applications...i have
myproject.exe
.netframework 3.5
adobeflashplayer.exe
now i want to make a single installer that should install these application at once...how should i do that
I know how to create a control at runtime e.g.[code]Can anyone tell me how to create multiple instances using a for-next loop? e.g.[code]The part I can't work out is how to give each new button a new name... like button1, button2 etc
View 4 RepliesI'm trying to create multiple Excel charts, in one work sheet using VB.net.This is the code:
Code:
'creating the chart
Dim chartPage As Excel.Chart
Dim xlPump1Charts As Excel.ChartObjects
[code]....