Well this listbox contains sensitive data not very important but i dont want the end user to be able to see what the listbox contains, therefore i have hidden the listbox But my question is how do i store this information i could easily write it to a text file i know but the user could locate the text file. So i attempted to create my text file as a resource and that failed as i can read from it i cant write to it. More simplistic question. I have data i need to save from a listbox but if i save it as a text file the user could still access it and i dont want the user to be able to acesss the file i would like it to be internal because i also dont want the user to be able to delete the file?
I've looked for code on this, and it seems needlessly confusing to me. I've tried some code I found and it doesn't return the proper value (I can't find the link to it now). So, I'm attempting to avoid that which I do not understand by writing a function that creates then deletes a file:
Friend Function GetFolderAccess(ByVal sDirectory As String) As Boolean Try Dim fs As New FileStream(sDirectory & " estfile.test", FileMode.OpenOrCreate, FileAccess.ReadWrite) Dim s As New StreamWriter(fs)
[code]....
Through testing, this appears to work for both read and write access. I originally had a File.Exists before the File.Delete, but the function would sometimes return True when it should have returned False.
I'm having difficulty writing an embedded resource file to disk, when I step through this code it works the way it should and writes the file, but when the application is run externally it does not write the resource file.[code]...
What is an alternative way of presenting tabular data aside from DGV? I tried DGV but i cant seem to populate the DGV automatically using datasets. Is there a way to manually place my data on the DGV using the read.Item("column1")?
I have a search function on my company's website (based on .NET 2.0) that allows you to narrow the product catalog using up to 9 different fields. Right now, after you make your selections on the frontend I am building a dynamic query and hitting the database (SQL Server) to get the resulting list of items numbers. I would like to move away from hitting the database everytime and do all of this in memory for faster results. Basically a 3500 - 4500 row "table" with 10 columns: the item number (which could be a primary key) and the 9 attribute fields (which have repeating values for many many rows).
There can be any number of different searches between the 9 columns to get the items you want: Column A = 'foo' AND Column D = 'bar' Column B = 'foo' AND Column C = 'bar' AND Column I = 'me' Column H = 'foo' etc...
Based on my research, the .Select() function seems like the slowest way to perform the search, but it stands out to me as being the quickest and easiest way to perform the narrowing searches to get the list of item numbers: MyDataSet.Select("Column B = 'foo' AND Column E = 'bar' AND Column I = 'me'") In my specific case, what method I use as an alternative that has the same narrowing functionality and better performance instead of settling for the datatable.select() method?
Im currently developing an app, in which there is a list box which will contain between 200 and 3000 items. These items are loaded into the list box from a .txt file. Now on the same form i have Picture boxes x 6 Textboxes x 5..The contents of which changes with each list item selected, and to do this i have the code attached to the list box, heres a snippet of the [code] but at the moment with 178 items on the list the total code is pretty big, and i get the feeling it would run faster if loaded dynamically.Am i right in thinking that? Especially when the list has 3000 items, thats alot of code to have attached to a listbox.And how do i go about making the code dynamic, im looking round the forum and seeing ADO database mentioned alot and that seems to be the answer at least for the text fields, would that also work for the picture box fields?
hey been looking around for an example of Sendmessege to send keys, but all you find is the basic notepad example, can anyone please show me the way to use Sendmessege to sendkeystrokes to any application (i have the hwnd)
I have a .dll file ( MySql.Data.dll ) that I'd like to be able to open, view and possibly edit the database but I can't find any examples or documentation on doing so.
I'm writing an app that reads zip files from a folder and then displays them in a listbox. As a user clicks on one of the zip files in the list they can see a particular file that is located inside the zip archive in a textbox. The way I'm doing this now is to read the files from the folder and store the zip file name and the file associated with it into a two dimensional array. Kind of like this:
Dim a_files(500, 1) a_files(0,0) = name of zip file in folder a_files(0,1) = name of a particular file in the zip file The problem is that there may be more than 500 files so the array has to be scalable. I know you can use 'ReDim Preserve' to resize the right element on the fly, but I need to resize the left element. I've looked at collections, but I can't see an example where they can be multidimensional. Does someone know of an alternative way to store these values that would have the flexibility I need?
On our intranet website, I need to give option to user to specify the location where they would like to save files. The files would be generated by a background process. Is there a way user can specify the location? I can not use FileUpload since that requires file to be specified. I notice that FolderBrowserDialog is for clientserver vb.net app and not asp.net.
I have a vb application ive been working on and its pretty much complete. I posted in the asp section but we couldn't get it figured out there so im reverting back to vb so looking for some help.I have a vb.net app I created and I have an internet browser embedded in it calling an asp page. the asp page is just a simple file that searches an access database. I used the asp page because I wanted to display the results with graphics and tables so I used html for that.Everything technically works except I am running it on a local intranet and the asp file is located on a server that is REALLY slow so it is taking 20-30 seconds to get my results. so, my question is, Are there any other options or ways I can do the search within the vb app itself so everything stays local and I don't have any speed issues. I can't install IIS on the local computer because the IT department is strict unfortunately.I don't HAVE to use "html" but I would like it to look nice with graphics and html was the only way I knew how to do that.
I've cracked the reading Outlook emails from a specific folder in a VB 2008 program but now I need to append my parsed data to end of an existing Excel Spreadsheet. where I can look for some code samples of now to do this?
I've made an alternative to the MdiWindowListItem for window navigation in an MDI application. It consists of each window being added as a toolstripbutton to a toolbar, similarly to the Windows taskbar. I don't use any of the mechanics I should probably use, such as for loops catching each child window etc etc. Instead I look at window titles and do a lot of string manipulation and using counters etc.
I'd like to get rid of my method and use something a little more technical. I'd like to have the same effect, but to be able to add toolbar buttons relative to the MDI children as opposed to looking at window titles and such, because I've also got a plugin system that allows users to create their own windows and add them as mdi children. But, if a plugin is added, it doesn't get added to my toolbar taskbar thing because the titles are all user defined and I cannot control them.
So, basically, I want something exactly like the menubar's MdiWindowListItem feature, but using my toolbar idea. I want all MDI children to show up in it, including the 3rd party windows.
I am trying to retrieve an image from an Embedded resource, and displaying it in its RAW DATA format (ie-> junk text data).Basically, I am running into a wall with everything I attempt.
I need to refer to some strings using an "indirect string" in the registry. It should be in this form:
@filename,resource
MSDN: "If the resource value is zero or greater, the number becomes the index of the string in the binary file. If the number is negative, it becomes a resource ID."How can I find out either of these numbers for my resources that only have names in VB? I also need the ID/index for the exe's icon.
I have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
I don't completely understand the embedded resource. Here's what I'm trying to do.I've added a PDF to the application Resources using "Add Resource." It appears to add the resource as a BYTE (I'm assuming some type of binary file). I want to simply display this PDF in a PDF component I've added to the application.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load AxAcroPDF1.src = My.Resources.aamaspoker End Sub This is not working because .src is expecting a "string" but the resource PDF is a BYTE. So what obvious thing am I missing here about using PDFs as resources?
i just write code for application, in which data is get by user and entered data is to print in a particular format?give me a code for vb.net button by which after click on it will print entered data?
I have a resource file that I include in my shared code library that has all of my re-usable classes in it (all the resources go into their own namespace). Now, what is the best practice regarding resources... should I include them in the same DLL, or should I have a seperate resource DLL and/or are there any benefits from seperating them out into their own file.
How I can run exe file from my resource. I have a program that I put it in my resource so I want to run it with out tying c:/ and d:/. I want my.resource.MYFILE.EXE
I have used following code to create and write the user input data to XML through Dataset. Hope it can be understood by looking the following code:[code]But the above code is not working. it is not writing the value in XML file.
I am developing a VB.NET 2008 application, consisting of a main EXE application and several resource DLLs.I am trouble with two functions for the DLL:
1) one function to get a list of all files in the resources of the DLL.
2) one function to return 'by name' a resource file as a System.IO.Stream type.
NOTE: The files will not be "Embedded Resource" (this doubles the size of the DLL), so I think cannot use 'GetManifestResourceStream'.
I currently use:
Return New System.IO.MemoryStream(My.Resources.MyFileName)
but I want it to be called by name.I am adding the resources using the VS 2008 "Resources" tab, from the My Project screen, I'm not manually editing Resources.resxAs I said before, it works with:
Return New System.IO.MemoryStream(My.Resources.MyFileName)
but I need to get the resources by name, which also works by using
GetMAnifestResourceStream
but this requires to set the resources Build Action to "Embedded Resource", which doubles the size of my DLL file.I currently use "None" as Build Action, but I can use any Build Action that does not increase the file size more than the actual resources size.
I'm trying to write an application that requires information to be saved once the application has been exited. In order to do this I have been experimenting with storing the data in text files. More specifically I've been looking into adding text files as application resources. I am using VB Express 2008 and added the text file resource through the application tab>>Resources>>Add Resource>>Add new text file. I am able to use my.resources.TextFile1 to read the text file but I am unable to write anything to it. I have tried using my.resources.TextFile1.replace and .insert but neither of those are working out. I was thinking there is maybe a read only setting somewhere, but I have not been able to find any information on this issue.
