I am noticing that sometimes when I read ProcessName the Process has already finished. Sometimes it hasn't finished yet and reading the ProcessName works. I would like to find out how I can consistently read the ProcessName from a process no matter if it takes a long time or a short time to run. Is there some event I should be in? or some trick? When I read it at the wrong time I get:
System.InvalidOperationException: Process has exited, so the requested information is not available.
at System.Diagnostics.Process.EnsureState(State state)
at System.Diagnostics.Process.get_ProcessName()
I've always felt like SecureString was a little odd, but assumed most of my issues with it were due to security problems I don't understand. Today I decided to sit down and teach myself about it, but I've hit what seems like a fatal snag.
The scenario I envision is "user enters password into text box, that password is hashed and compared to a stored hash". At first I was worried that the text box contained the string, but then I realized you could roll a custom text box that uses SecureString as its store. Cool. It's the "that password is hashed and compared..." part that is giving me trouble. [code]...
I've been looking for a VB.net code that safely remove USB drive which I know it drive letter. I couldn't find anything that works on MS VB Express 2008. I always get errors. Anyway this article looks what am looking for [URL] However, it is not in VB and i have no about the code. I found a conversion at [URL] if not with code, you lead me to achieve the USB ejecting at least.
I have a VS 2008 .NET application which connects to many tables within a SQL 2005 database in order to fill controls using multiple DataSets and TableAdapters.how to appropriately change the database connection within my Visual Studio .NET 2008 application in a manner that will provent having to modify the datasets and tableadapters. Will changing the connectionstring shown in the DataSet/TableAdapters properties render them unusable?The tables within the production database are identical to the tables in the development database.
I'm confused a bit. I need to open a file that another program regular reads and writes. I want to make sure that I open the program in such a way that it will not harm the other programs access in any way. My program can handle any errors created by the other program changing the file out from under me - I just need to make sure that when I open the file the other program can continue to read, write, delete, etc without even knowing about my program. FYI this is simply a weather application where the "other" program is updating a table file with current weather data - my program reads that data and sends it to another application... Here is the code I am using:
Recently there was a request about sending bulk email which was building a potentially dangerous collection of answers which could lead to someone easily creating a spam engine. While there are legitimate reasons to send bulk email, one must be sure to follow all the applicable rules. This means following RFC 2821 and forming properly crafted email messages. In the US, it also means complying with fedral law regarding the sending of unsolicited email (express permission must be captured through direct user initiation e.g. user's must choose to check the box to receive your email), and that means including a removal instruction as well as valid contact information.
To that end, here is an example program for sending a mass email to a list of recipient addresses located in a database. The code only cares about recieving an array of DataRow objects, so any database for which you can fill a DataTable will work.To run this example, simply place a Button on a Form and paste in the following code:
Option Strict On ''' <summary> ''' Example of safely sending bulk emails ''' </summary>
Can I safely modify -I mean: remove and re-add on a different index position- any item that I iterate over using a For Each loop in VB? We are talking about the VB Microsoft.VisualBasic.Collection class.And if yes: Is this by design, or an implementational detail, that I am building upon then?
I've written a simple program to hide the taskbar clock and close upon load and I've read a lot of different articles on how to close a program correctly and read a multitude of different answers so I thought I'd just post the code and see if it is written cleanly. Also, I am in the process of trying to get the taskbar to refresh after the hide code has ran and how to refresh it would be great too but is not the main question of this article. I'm using Visual Studio 2008 using the Visual Basic Development settings and I have vista 64-bit. Here's the code:
There are already multiple threads about this, but i don't have the knowledge about the different SQL databases/methods to make heads or tales from it.I am using an OleDbDataCommand, an OleDbDataReader and the following code
Dim Query2 As OleDb.OleDbCommand Dim RetVal2 As OleDb.OleDbDataReader Query2 = New OleDb.OleDbCommand("Select [section], [title], [id] From " & DtSections & " Where [volume] = " & volu & " And [chapter] = " & chapter & "", AccessConn)
[code]....
value)In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. Type) Object?
I know how to read user input using textbox but it only can read character and numbers. Is it possible that I want to read user input equation?
Example:
User type A+B User put range of A and B. 1.25<A< 3.56 2.45<B< 9.87
I failed to read the equation using textbox. Is it there are other ways that can use to read equation input A+B?I am using VS2005 and VB.Net. I really new in this programming using VB.Net.
I need to check the test result with the data from database, to find out which test result is failed. If there is a fail test result, I will show an alert to the operator and stop the checking process. Until the operator close the alert, then the checking process will continue from the last read point.
I have a number of word documents I am converting. Everything is going great until I get a file that is read only. In this case I get a Save As prompt.
Is there any way to open the file in read/write format? I should have admin privileges so access isn't an issue.
I'm using VB.net to open the files. More specifically
ok i have image that i bind info in it and i want to read the info now from file (FileStream) its workbut i want to do it not from file so i need to use MemoryStreamhere the example that work and how i do it now how i make it work with MemoryStream (with byte = My.Resources or PictureBox1.image)
Using FS As New IO.FileStream(image, IO.FileMode.Open) FS.Seek(0, IO.SeekOrigin.End) While Not FS.ReadByte = Asc("|")
I'm trying to make a program that can read .mp3 data (Such as Artist, Album, Year, Track number, etc), but I need to be able to do two things that I have no clue how to do:
1. Read starting from a specified string (E.G, On one line it states: [code]
2. Read until a specified string (E.G, On the previously stated line,I need to read starting from what I said, up until.
I am trying to Read BMP that not Have the Header of BMP and Trying to Read it with BMP Constructor, File is used for interface in a game, File structure is:The File structure is like this (Offset in decimal): [code]
I have a fairly simple XML file that I just want to read the data from.
It has 3 levels, root, main section and items. There are no attributes. I want to go to the first main section by name, then read in all the items. The items all are named the same. I've seen this done before, so it should be ok. No writing will be done. Basically this is a static data file
I have a txt file that I need to read into a listview, but I need to read from a specific line in that file. Below is a sample of the txt file to read,
Let's say we have a class, let's call it CLS_Object for simplicity. Now, suppose CLS_Object has 2 public properties, "Name" as String and "Value" as String. These have both read/write methods into the properties.
Now let's go to a seperate class, let's say CLS_Example. Let's create this variable:
Public _OBJ_Object as New CLS_Object
Now, let's create a property, called PROP_Object that is READ ONLY...
Public ReadOnly Property PROP_Object As CLS_Object
If we allow that to return _OBJ_Object, the user can the also SET VALUES to that object. In the context of "well, the property is returning the object and you are writing to the object, not the property", I understand this behavior. But it means you can write to a read-only object of sorts.
