I am suppose to recode a notepad assignment that i have done so that it is able to support multiple concurrent open files, that is MDI files i my note pad i had use a textbox instead of richtextbox can any one tell me if i have to use back the textbox in my recoding or not.
View 1 RepliesHow do i amend my Notepad assignment to support MDI interface multiple concurrent files
View 1 RepliesI'm making a texteditor for writers. This Editor can now only open .txt files, but I want to open this files either:
.doc and .docx
.odt
.rtf
I searched over a week for this code, but cannot find it, anyway .[code]
I have some code that downloads a list of files from an array or URLs. It downloads fine, but I keep getting the following error between each download.
"WebClient does not support concurrent I/O operations."
To me that means I can't download more that one file at a time. If so how can I get the code to continue only when the download is complete.
I have an application that can read certain types of files, and I have it working so that if you do "open with" from windows, it automatically starts the application and opens the selected file.
Unfortnately, I cannot get it to work for more than one file.
System.Environment.GetCommandLineArgs() contrains the following:
System.Environment.GetCommandLineArgs(0) = name and path to the .exe
System.Environment.GetCommandLineArgs(1) = name and path to the first file selected to be opened
System.Environment.GetCommandLineArgs().Length is 2 when the user tries to open 1 file, which makes sense since the first argument is the .exe itself and the 2nd is the path to the file, but it does not increase to 3 if the user tries to open 2 files... meaning that System.Environment.GetCommandLineArgs(2) is never populated Here is some sample code that shows the problem: It will recognize no files or 1 file being opened, but if you try to open multiple it will only show the first.
[Code]...
I'm using this code to load multiple files using windows context menu, but the problem is that the aplication is open many times as files the user has selected.For example: If I select 14 files, an open them with the application, the aplicacion is opened 14 times and load the form only one. But there is a way to send all arguments once? Because %1 send only one file, or there is for example a %2 that send all file pats in one argument? If there is I'vent found.
This my actual code:
Public Class Program
Public Shared Sub Main()
Dim FurBase As New Core.clsDatabase
[code]....
When I select multiple paths from openFileDialog in my listBox control enter only one path by try. This is probably because that I use OpenFileDialog.FileName. I wish to load all selected files in one time...but in this case Add(OpenFileDialog.FileNames) give me the value stringArray in same listBox. I suppose that maybe exict peace of code through ItemCollection which give me opportunity that I import all file path in one try in listBox control. It was interesting because how I may implementing matrix between openFileDialog and listBox..
View 4 RepliesI have a tab-based application that handles multiple documents. It is designed such that the user cannot run multiple instances of application. Furthermore, the user can double-click on a document file, and the application will launch itself and open it.[code]...
View 9 RepliesI have a program that works when, a file is opened with it using the right click menu in explorer. But if I select multiple files and then right click and open with my program then it opens multiple instances of my program, instead of just passing the multiple files as arguments to a single instance. The program is written in vb.net but is not a windows form, it is just a module, so I can to tick the Single instance option in the properties in Visual Studio.So how do I open multiple files from explorer context menu in a single instance.
View 2 RepliesI have a CheckedListBox. In the box are files from a directory. All *.jpg files.
Now I want to open the checked files with the default program.
I'm creating a kind of 'playlist manager' application where the user can create his own music playlist and then play it from my application. However, I don't want to give my application any playback features itself, as there are already so many media players around. Instead, I just want to open the files in the current playlist in the media player of the user's choice.
I have a list of MP3 files (their filenames), how do I now open these files simultaneously in, for example, Windows Media Player? I can get it to play one song, using this command (and Process.Start)
[Code]...
Surely this must be possible? You can open multiple files in windows itself simply by selecting them and opening them at the same time. I'm pretty sure the filenames of the selected files will then be in the arguments of wmplayer so that it can open them, but I just don't know in what format.
I want it to do the following: When they click the import button, open multiple files (done) then save them as a settings. Then on form load, open those files so I do not have to re-import them!
I have tried this
CODE:
on form load and settings.txt included 2 file names and locations. It is only opening the 2nd file NOT the first. How can I make it open ALL files in that settings file? I also tied ReadLines
I have this program, where the main (one and only, "ControlBox" set to "false" and "FormBorderStyle" set to "none") form will fill up the whole monitor. It wasn't set to "WindowState" = "Maximized", but rather I have it designed to fit on the resolution of the target monitor's resolution size. It is set to run on 1920 x 1080 size. Hence I have all the layout and child controls laid out nicely.Right now, I was thinking, what if I wanted to have my program fit snuggly (or nicely) into the target monitor's resolution, varying from 800x600, 1024x768, 1440x900 and such.What would be the best approach? Make multiple copies of the form in designer, lay out those controls, then create a centralized class file that sort of integrates all the methods that were existing in the original form, so that the rest of the form would be sharing it as well.
Or would I make only 1 form and do all the layout adjustment on runtime and having the hassle and pain of going through it? I have 1 main problem though, there's this logo which stuck on the top left portion of the form, which currently just fit nicely on this 1920 x 1080's form. I wonder what would happens if I size it on runtime.
I have this program, where the main (one and only, "ControlBox" set to "false" and "FormBorderStyle" set to "none") form will fill up the whole monitor. It wasn't set to "WindowState" = "Maximized", but rather I have it designed to fit on the resolution of the target monitor's resolution size. It is set to run on 1920 x 1080 size. Hence I have all the layout and child controls laid out nicely.
Right now, I was thinking, what if I wanted to have my program fit snuggly (or nicely) into the target monitor's resolution, varying from 800x600, 1024x768, 1440x900 and such.
What would be the best approach? Make multiple copies of the form in designer, lay out those controls, then create a centralized class file that sort of integrates all the methods that were existing in the original form, so that the rest of the form would be sharing it as well.
Or would I make only 1 form and do all the layout adjustment on runtime and having the hassle and pain of going through it? I have 1 main problem though, there's this logo which stuck on the top left portion of the form, which currently just fit nicely on this 1920 x 1080's form. I wonder what would happens if I size it on runtime.
Does visual basic support animated PNG files?
What methods (if this is supported) Would I need to do to show it?
APNG means Animated PNG file.
I am working on a project which use files with a .HRZ extension. These are image files with a simple red, green, blue, red, green, blue structure. There is no header of any kind. I know how to display these files in a picturebox or convert them to a bitmap, but of course Windows 7 does NOT know what they are, so just shows a blank icon in the OpenFileDialog. How easy would it be for me to add support for this file format to Windows and/or the OpenFileDialog so I can show a thumbnail of each file? I can create my own file browser but I would really like to use the OpenFileDialog if at all possible.
View 3 RepliesDoes the Express Version support adding multiple soultions (.sln) to a project or is this only available with the Professional version.I see that I can add a DLL as a reference that was built in 2010, but it is not letting me step into it with the debugger (or recompile changes to its source).
View 10 RepliesI need to download a bunch of pages from a web server, ie. spidering. I know that servers are typically configured to only allow a couple of concurrent connections from a given IP, but that would already halve the total time to run the script instead of downloading one page at a time.
View 4 RepliesI want to use System.Net.Mail.SendAync in an ASP.NET MVC2 application. I see that it throws an InvalidOperationException if there is already a SendAsync call in progress. Does this mean only one SendAsync is allowed per host, or per thread? For example, if I simultaneously have 2 web users from 2 different remote hosts, can each use SendAsync at the same time?
View 1 Repliescan anyone guide me to a simple example of reading a serial port and doing other things concurrently eg graphics. I am trying to graph ouput from a datalogger real time. I am new to vb and having been a programmer since 1964 I dont need to be impressed by arcane code.
As you can see I am a grumpy old man (70)Cheers
i have a form where i wanted to open multiple socket connects to multiple servers. i defined "clientsocket" as a socket array
[Code]...
I have a website that has highly granulised access and hence requires many web.config files. The problem is I would like to trim the menu so that only certain users will have access to certain folders. I have enabled trimming and setup roles in the sitemap, however when I access the page the menu is not show, as I am authorized to view the default page which is not in a subfolder. When I type the url of a page in sub folder's I have access.
How should I handle this:
A site map for each web.config file - don't know how this will work Removing the sub web.config file to only use a single one
I am writing an audit file that is writing the username, time, and the old/changed values of several variables in the application for each user when they use my application. It is using a FileStream and StreamWriter to access the audit file. All audits for each user will be written to the same file. The issue is that when two users are updating this audit file at the same time, the "old value" of each of the variable is mixing up between the users.
Dim fs As FileStream
Dim w As StreamWriter
Public Sub WriteAudit(ByVal filename As String, ByVal username As String, ByVal oldAddress As String, ByVal newAddress As String, ByVal oldCity As String, ByVal newCity As String)
[code]....
This lives in an AuditLogger class, which is referenced via an instance variable (re-allocated each time the function is accessed).
I know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file
Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")
[CODE]...
I compiled some VB6 code on my Win7 x64 machine and the result .exe will not run correctly on any other machine. VB6 code is just a new template .exe file with one button, a reference to "Microsoft ActiveX Data Objects 2.6 Library" and the following code in the button press event: Dim db Set db = New ADODB.Connection It runs correctly on my machine, but no others (even other Win7 x64 machines) (Update: I found TWO other users where it runs and one of them is Jeff Atwood!, but most machines have the same problem)
[Code]...
I'm trying to write a simple load tester for one of our web services, which is served through IIS7. I'm launching a load of threads (as Tasks) that call the web service as a Web Reference.Despite the threads all starting, only 2 concurrent connections from the app can be handled by the web service. I'm aware that by specification simultaneous connections are limited to 2 per user. For the sake of this load tester, which I guess is one user, I would like to open many simultaneous connections.I have tried to add the following to the web.config of the web service.
<system.net>
<connectionManagement>
<add address="*" maxconnection="40"/>
</connectionManagement>
</system.net>
My setup is as follows:
The web service is located at [URL], where MyWebServiceApp is configured as an application.The webmethod can be viewed as something trivial that simply waits for, say, 20 seconds before returning a response (making it easy to see that only 2 connections are open at any one time).The simplest form of the load tester code is ass follows:
Imports System.Threading.Tasks
Module SuperBasicLoadTester
Sub Main()
[code]....
I've tried pointing other load testing software (e.g. soapUI) at the web service and have observed the same issue.
Edits: I should add that the web service box is running Windows 2008 R2.Also I have run SoapUI and my loadtester simultaneously and each is only able to request 2 connections each (i.e. 4 in total).
I'm making an editor similar to Notepad++ and other editors. I'm trying to use DigitalRune TextEditor Control and Docking Control. My Problem is I can't manage to use the sample because it's in C#.
View 2 RepliesI'm developing an application to help law enforcement retrieve and analyze logs and other files left by the use of Pidgin (a multi-protocol messenger client). Right now I'm nearly done, but I want to add the ability to search chat logs for user-defined words or phrases and I don't even know where to begin.
Chat logs are stored as html documents in a folder/sub-folder/sub-folder/sub-folder fashion, where each sub-folder can have dozens of sub-folders inside of it, and the final sub-folder can have dozens if not hundreds of chat logs. If anybody could point me in the right direction, I'd be very grateful.
(Also, this is the first program I've written since about 2005, and I'm essentially teaching myself VB as I go. If you'd like to see what I've cobbled together so far, you can find the program here.)
I'm trying to copy multiple excel source files into one excel file. My current code is working only for 3 source files..If more than 3 files are there, it doesn't copy the data but creates blank work sheet in the output excel file. Lets say I have a source folder with 5 excel files. Each workbook contains one worksheet with data. It copies upto 3 worksheets along with data into output excel file.
Lets say excel1 contains A as work sheet, excel2 contains B as work sheet ,excel3 contains C as work sheet ,excel4 contains D as work sheet ,excel5 contains E as work sheet .Now my output excel file should look like..OutputExcel with A, B, C, D, E along with respective data.But my current code is giving output as A,B,C worksheets along with respective data but its creating blank sheet1,sheet2 in place of D & E.
SSIS Script Task Vb.Net Code:
Public
Sub Main()
Dim filePath
As
String =
[code].....
im used to C programming.
Private Sub SaveAsToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveAsToolStripMenuItem.Click
timedate.Stop()[code]......
The problem is that if I save a file I get "myfile.GDL" if I overwrite that I get a new file "myfile.GDL.GDL" ect.the other problem being that the filtering in the windows save/open dialog wont show .GDL files unless I select "all files".