Generate A Virtual Disk / Path?
Mar 26, 2009
Is there some way to generate a virtual disk/path?My application needs to generate a lot of temporary small files, edit them, write to disk, execude old executables in Fortran, and read the text files outputs.I cannot choose to avoid the fortran, because is out of my power to decide it.all that I/O is really expensive, because disk access is slow. But all the files involved are really small (including the executable), so they may fit on a few megabytes of RAM, and I have gigabytes of RAM available (RAM is really cheap today).Worse, I cannot parallelize, because it forces me to multiply I/O operations (I need to create, edit, and delete lots of small files).The perfect solution would be to have a small virtual disk in memory.I cannot use a virtual PC software, because users would have a hard time installing it (they have problem using windows explorer even to do simple tasks).
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May 22, 2012
I am trying to read and display a file using MapPath as follows :
Response.ContentType = "Application/pdf"
Dim FilePath As String = MapPath("../Document/123.pdf")
Response.WriteFile(FilePath)
Response.End()
This procedure will work fine and display in the browser. However, if I save the file to C:Document123.pdf, how can I access this file using relative path in MapPath function. Is there an option to access the file which is saved out of IIS server? I am using vb.net 2003.
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Aug 18, 2010
In my program's Form_Load I randomly generate a time value. Once I generate the time value, I put it in a DateTime variable. I need it to work like a clock. I know I can do this with a timer with an interval of 60000, or using TimeGetTime and updating a variable.Is it possible to do this with a thread?
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Apr 9, 2009
I used something like
Dim i As String
i = Server.MapPath("~/photos/") + fileName
[code].....
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Mar 8, 2012
I'm working on an asp.net project which has a form with a file attachment capability. Since I'm uploading the form on a server, I can't use a physical path. How do I use the asp:FileUpload with a virtual path?
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Nov 9, 2009
I'm having a bit of a problem with the web application I'm currently working on. In it there are a few Web User Controls that we use to display information on a bunch of different pages. They seem to compile alright and arent showing up any errors. The problem is trying to register them on other pages to access them is returning a 'file not found' error in visual studio (2005). I have them defined like this:
<%@ Register TagPrefix="cc2" TagName="ControlSelector" Src="~/components/controls/ControlSelector.ascx" %>
The strange thing is that when I remove the '~' from the front no error is shown but the path beomes ~//components/controls/ControlSelector.ascx when looking at the designer and obviously it cant find the control anyway.
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Oct 22, 2010
How can I programatically find the path and file name for an embedded object in an Excel worksheet? I know I can right click on the object and select Packager Shell Object and then Properties to find the information
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Feb 1, 2010
How can I search the local disk for a file type and copy the full path to a new location. I am trying to write a backup program that will copy all pst files to the server while maitaining the structure, so if there is a pst located in "C:pstuserpersonal1.pst" it would create the folder "\serverpstuserpersonal1.pst" and copy the file to the correct location. I would need it to do this for each pst on the hard drive no matter the location. The user running the program will not have admin rights, so it will need to skip files it cannot access.
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Apr 15, 2010
I'm creating a radio streaming application, which plays a live stream from various radio stations in a small 'gadget' like application.
The user can add his own custom radio stations, by supplying a Name, a StreamUrl and, optionally, an Image that represents a logo or something of that radio station.The logo will be drawn on the main form when that station is selected.
I need to be able to save these custom stations, and I think it makes sense to use an XML file, which could then look something like this
<CustomStations>
<Station>
<Name>Radio 1</Name>
[code]....
Before I added the support for images, this worked fine, how to store the images. I want the user to be able to select any image from his harddrive, but I don't want to force him to keep that image in the same location afterwards. So I can't rely on the path that he selected. Instead, I want to simply load the image from the path he selected, and then save it somewhere else.
I am storing the XML file in the common application data path which I think is a good place for the images too.The problem is, how to determine a name for the images? I will always have just one image per custom radio station, so it makes sense to me to simply have one Images folder that holds all images, with a unique name.I can see two solutions:
1. Generate a random filename for every image
2. Use the Name of the radio station as the image name
For option 1, I suppose I could just create a string of 16 random characters and call that the filename. The problem of course is that there is no guarantee that I will get a unique filename. Yes, the chances of generating the same name twice randomly are very tiny, but it's still possible, and I just don't like that. How can I ensure that my random filename is unique? I suppose I could always drop the whole thing in a While loop that continues when the new filename already exists, but there must be a better way... Is there nothing in the framework that allows me to generate a unique random filename, in a directory of my choice (so not in the Temp directory...)
I like option 2 much better. The Name of a radio station is unique (there can't be two stations with the same name), so I don't have to worry about filenames conflicting. The problem with this approach is that there are no restrictions on the name. There's nothing stopping the user from naming their custom station "Radio~/aij!""_.fe" or something like that, which is obviously not a valid filename... So, I will have to do 'something' to generate a valid filename from the station name. I could simply remove all non-valid path characters from the name, but then I am no longer guaranteed a unique filename... Suppose there's two stations, one called "Radio/1" and one "Radio1", then after removing the invalid "/" character, the names will be the same and so I will generate the same image path for both....
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Aug 22, 2006
I have a Access program and I'm using VBA code in the background to run Winunzip using shell command. Well, the path of the .zip file has spaces in it and it's not recongizing the path as a valid path. Is there a another way to tackle this problem besides the shell?I can't us pkzip either. Has you can see I had to use progra~1 instead of Program Files.[code]
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Apr 13, 2012
Problem drawing dotted path lines, with even dots along the path line.I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear.
I also want to be able to resize the shape (as in the example attached)This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots.The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.In the example I have created, I create a square with 4 points and draw a dotted path.There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly.
The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. point me in the direction I need to go that allows me to draw the dots and give the impression that they are even all along the path, for all shapes and sizes.
In the pictures below if you change the size of the shape, one will have even looking dots, the other will not.
[Code]...
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Dec 7, 2010
i used the following codes:
private mediapath as string = "C:movie.avi"
private form1_loads blah blah blah
[code].....
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Apr 7, 2009
I am trying to create a function to convert a mapped drive path to a UNC path. I did some googling and found several different pages on the matter. I am most interested in the first one, but I cannot seem to get the code to cooperate. Since the original post was in C#, here is my VB.NET conversion:
[Code]...
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Jun 14, 2012
I'm using acrobat that returns unix paths instead of windows path's. So im wondering if there is a way in vb.net to convert the path to windows path.
i tried using:
docs(i) = javaScriptObj.path().ToString.Replace("/", "").Substring(1)
position = docs(i).IndexOf("")
docs(i) = docs(i).Substring(0, position) + ":" + docs(i).Substring(position + 1)
this only works on local files, but fails when im starting to use network drives.
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Apr 12, 2012
I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear. I also want to be able to resize the shape (as in the example attached) This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots. The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.
In the example I have created, I create a square with 4 points and draw a dotted path. There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly. The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).
The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. I need to to draw the dots and give the impression that they are even all along the path, for all shapes and sizes. [Code]
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Jul 16, 2011
i get this error "Illegal character in path" when checking for a folder to see if it exists.
the folder is D:PlanificatorPlanificatorPlanificatorServerinDebugData1 and it exists.
Function IDExists(ByVal User As String)
User = User.Trim
Scrie("Se verifica existenta ID-ului " & User)
[code]....
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Nov 29, 2010
Well now i have an issue which is pointing in the use of "path's" physical and network.I have a SQL server on a Server machine and i have a desktop machine used as client.I'm runing from my client machine a stored procedure in order to add a streaming data base.But also before i run this procedure i run another one which prepare the desired "path", this procedure takes:
myPath="\ServerSharedFolderSQL
in order to run the first procedure i have to turn myPath in each physical name:
myPath="DriveLetter:PublicWorkFilesSQL"
Now my Issue is how i will have the physical path, which is build it on the server and which it's from very difficult (to imposible) to know it? Basically i need a function which will return me the physical path, which the implementation it's not knowing to me. My developing environment is vb.net 2010?
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Aug 6, 2009
I am using the following function to return the primay ip address with out problem until I ran it on a virtual server. It returned the ip of the physical server not the virtual server.
Public Function fnGetIPAddress() As String
Dim IPAddress As String = My.Computer.Name
Try
[code]......
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Jan 7, 2011
i want to make a custom CMD i can try it to make it in notepad and save it as a .bat file en then say, [Code]
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Mar 31, 2009
I using 2 virtual PC on may Computer. Can I re-use an existing for a new virtual PC?
Because, A Virtual PC have many space on HDD.
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Sep 4, 2009
I have created a WFA that has 5 projects in it. One of the projects runs against 600 + servers and queries each server for local administrator accounts and then dumps that into an excel file. It will also check to see if the account that is in a local administrator group is disabled in AD. The problem that I have is that when I run the particular project I will run out of virtual memory. I have 4 gig on my computer. Is there a way to control this?[code]...
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Apr 3, 2009
Does VB.NET supports virtual events?
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May 26, 2010
I need to define Virtual IP programmatically (Perl or VB or CMD or java).I need it for temporary use, I can't use any actual IP address and I don't care if it will be accessible only from local machine.
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Oct 4, 2011
I want to create virtual directory using vb.net. But while creating permission denied error occurs.If im manually creating virtual directory no error..
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Jul 8, 2010
I'm trying to create a custom keyboard for my accounting firm. I have all the buttons and button events sorted out.How can I make it so that when buttons a pressed, the text is input into where the cursor is? Currently i put the cursor for instance in an excel cell, then click the key on the virtual keyboard and nothing is inputted into the cell, i assume because it selects the keyboard window when i click the button. For some keys I'm also simply using:SendKeys.Send("q") for example.
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Jul 12, 2010
i am trying to make a virtual piano.in that i am also playing music files which is recorded through the above said piano.but how can i understand when this music playback ends.i need to invoke another function when the plyback ends.so how can i understand when the playback end.
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Jan 28, 2010
I am trying to use fluent nhibernate in a MVC project. It seems the entities should have properties that are virtual and the set should be private for IDs. I use vb language. So tried using overrideable. It gives an error...
Public Overridable Property DesignId() As Integer
Get
End Get
Private Set(ByVal value As Integer)
End Set
End Property
It says property cannot be overrideable because it has a private accessor.
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Jun 13, 2010
Is it possible to make a virtual interface represents the value of an input? For example, if we have a program shows the level of a liquid in a tank and we want to represent the level virtually: as the calculated value of the level increases, the level (and color) filled in the tank shown, increases as well. Example: If the value is 100, the tank ( a rectangular ) will be shown full and green. If it is 0, will be shown empty and red.
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Dec 17, 2004
Im creating a Virtual Keyboard for a touchscreen application and I was wondering if there is a way to know whenever a control gets focus, what type of control it is, basically either another thread or a watch function or something that raises an event when a control gets focus.GLOBALLY, not just one control or one form, but any control on any form in the whole program..Basically i want a keyboard icon to appear whenever the control is of Textbox type.
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May 15, 2009
I am using this code below:
[Code]...
I thought the %AppData% should find the relative path. When I go 'Start|Run|%AppData% windows explorer takes me to that directory. I can not put the full path in, as the user is different on each client machine.
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