I was wondering if somone one could point me in the right direction on this.Basically I am making a proxy testing program. A user can supply a list of proxies to test. What i want to be able to do is have them be able to specify how many threads they want to run. Then have the program go through the list testing each one using the amount of threads supplied. Really not sure even where to start on this. Threadpooling?
View 2 RepliesI'm not sure where I'm going wrong with this. it's supposed to let the user add scores to the list, then calculate the total, average, and count. However, it doesn't let me add more values to the list. Any help whatsoever would be awesome! Keep in mind, I am new to VB and programming languages, and was just playing around with code hoping for any sort of positive result, and therefore some of the code may not be necessary, or make sense. Here's what I have now:
[Code]....
Is there any way to use a VB form to supply user credentials to the Runas command in command prompt? I basically need something exactly the same as the GUI for RunAs but just for Internet Explorer (yes I know you can right click and go RunAs but that cant be done in this case). So the user would open this VB form, type their username and password in, hit OK and it would open Internet Explorer with their credentials (they log in under a generic account used by many people).
View 4 RepliesI wish to put the XMLSerializer behind a 'facade' class of mine so that user wont have to supply type info to the constructor. But doing this has a problem. Consider this class:
Class XmlFormatter
Private Shared xs As XmlSerializer
Public Function Deserialize(ByVal serializationStream As Stream) As Object
Dim o As Object = Nothing
[code]....
The problem is that the user of this class cannot use Deserialize without first using Serialize because the XMLSerializer instance is created in Serialize and it is shared. But using Deserialize without this instance will simply return Nothing.
I want to know how to test the 1st list box if it has items more than the other list box but by one item, here is what i have: If lstInvisibleTv. Items.Count > lstInvisiblePc.Items.Count Then it works good if the lstInvisibleTv list box is greater than the other list box by one but it also works if it is greater the other one by one or more which I do not want. I want it to work just by one.
View 3 RepliesI have a custom class Y which includes a public property X as list(of string) which won't always have data
In my code I am trying to do the following dim x as list(of string) = Y.X if not x.count=0 then do somthing
The problem is that when Y.X has never been set, it causes an error. What would the proper way to check for
Y.X be? I haven't really worked with lists too much.
I have a simple .NET 3.5 app for changing some database fields using an ODBCDataSet. Now the Feature Creep is asking if I can hide or show tabs and other controls based on the user's database permissions. Ideally, I would like to control the permissions only on the SQL Server using Windows user groups, and the app would not have any built-in authentication or permission system--it simply uses the logged-in user's Windows account for the database connection. So thus it would have to "test" the permissions to determine whether or not to show the tabs for the user. For example, if they have "write" permissions to a certain table, then the tab for editing it would be visible; if not, the tab never loads for them. How can I list or test the user's permissions to the ODBCDataSet?
View 2 RepliesBelow is an UpDate Statement I am practising with David Sceppa's book ADO .NET 2.0 Core Reference pages 467 - 468. I can supply the parameter values for "parameter_New" by doing something like:
da.UpDateCommand.Parameters("@OrderID_New").Value = myTextBox.Text
And so on...My problem is how to supply the value of "paramete_Old" to be able to compare before update. I gues it has to do with obtaining the Original values of the rows based on RowVersion but I don't know how to effect it.
strSQL = "UPDATE [Order Details] " & _
"SET OrderID = @OrderID_New, ProductID = @ProductID_New, " & _
"Quantity = @Quantity_New, UnitPrice = @UnitPrice_New " & _
[code]....
I have two textbox called BIRTH & EMAIL, and I must test in button click if the user has typed a date & email format in those two TextBox.
View 5 RepliesI have a TextBox, and I want to force the user to type an email format in this field like ([URL]) ? I don't want to use FilteredTextBoxExtender or the RegularExpressionValidator. I want to do it manualy.
View 3 RepliesCan anyone explain to me the difference between Arrays and Records and supply some code showing the differance between the two, as an example.
View 3 RepliesI need to be able to tell if a property is of type List(of T)but am currently unable to. if i do
TypeOf (UpdateTo.GetType.GetProperty(node.Name)) Is System.Collections.Generic.List(Of Object)
I get the following error
TypeOf (UpdateTo.GetType.GetProperty(node.Name)) Is
System.Collections.Generic.List(Of Object) Expression of type
'System.Reflection.PropertyInfo' can never be of type[code]......
I have a combo box and use the SelectedIndexChanged event. I noticed when I assign a value to the combo box that this event fires even though the user does not click on the control. Can you tell me how to test for when the user clicks on it and actually selects a value from it?
View 19 RepliesI need a simple snippet that will allow the user to test the connection for the FTP server entered in a textbox and the username and password from 2 other textboxes. (Server = TextBox1.Text, U/N TextBox2.Text, PW TextBox3.Text) I forgot to note something obvious - there's a "Test FTP" button
View 2 RepliesI have only really gotten into VB, so am an amateur.I have done quite a lot of search, and have read a lot of conflicting data which has yet to give me the result I'mafter.I have:Windows Form with many fieldsdatabase with 2 lots of data for reference.What I am after if for TextBox2 to give a result from the database when Textbox2 has user input.I have tried If TextBox1 = [Code] then TextBox2 = [Name] from db0 Names$
View 6 RepliesI am a new user to VB and I am having difficulty with one of my assignments. The assignment states that to create an application that allows a user to enter three test scores each for three students. The application should calculate each student's average test score and assign a letter grade. The application should prompt the user for each student's name and three test scores.
[Code]...
I'm trying to test/debug a WPF UserControl library in Visual Studio 2010 with the User Control Test Container.exe. I keep getting the error "Assembly [...] doesn't contain any UserControls." This should be simple, and every msdn article and blog tutorial I've looked at suggests that it should all just work perfectly and magically.[code]Project File has debug options set to open UserControlTestContainer.exe, with ./MyTestLibrary.dll as a command-line arg.
View 2 RepliesI have to write a program for a user to take a 20 question test (A, B, C, D). The users answers will be stored in an array and compared with a 2nd array that has the correct answers. Its then supposed to go to a 2nd form when you click show score, grade it, and display whether each answer was right or wrong. I'm missing something easy probably.
CODE:
i am trying to make a simple Vb program for children to do simple maths, now im not sure im going about it the right way, i have stored all the questions in a database and have called them up to the form and that is working fine, i cant seem to get the right code to check the answer from the user against my stored answer, i am using txtBox to store my answer and a txtbox for the input
View 5 RepliesI am doing wrong? I am using VB2008/VB.NET to send a command (set to 4 volts) to a Tenma DC Power Supply over an RS232 cable. I don't have documentation from Tenma that lists the commands that the instrument understands, I got "VOLT040" from a program in an older version of VB that someone else wrote for this instrument. The code is below:
[Code]...
Create a program which promps the user to enter an unlimited number of test scores. The program should show the high score and the low score. You should use a loop of your choice within this program. The program should look similar to the one below:
View 3 RepliesI don't understand the error, Argument not specified for parameter 'test' of 'Public Shared Function TestThis(test As String)'.
Partial Public Class Form1
Shared Sub ReceiveCallback(ByVal ar As IAsyncResult)
Form1.Invoke(TestThis, New Object(){"test"}) 'error
[code].....
I'm converting a user generated list box to an array and then generating a user defined number of random strings and placing it in a textbox.The code I have works fine as it will generate the number of random strings the user wants, except sometimes a line is blank at the top of the list but is counted as a string.
View 4 RepliesI am making a web browser and I was wondering how I could create connections through proxies. Right now the browser only uses UDP packets, so any info specifically on that would be great.
View 8 RepliesProxies are HTTP and socks. How can I use them to surf internet? I know "iwebproxy " of .net but do not understand how to use them for this perpose.
View 1 RepliesWhat's the RegEx for IP : Port?
View 3 RepliesHow to set timeout time for Proxies.
i am using
dim w as new webclient
w.proxy= new system.net.webproxy("xxx.xxx.xxx.xxx.:xxx")
most of the time it says unable to connect or it throws any error msgs... when i check those proxy in internet, they seem to work well. only few proxies are working.
I'm trying to use proxies with HTTPWebRequets and it works just fine until I try and post data. It keeps timing out for some reason. Attached is the class I use for webrequests.
Imports System.IO
Imports System.Net
Public Class EasyHttp
Public Enum HTTPMethod As Short
[code]....
Im programming something with httpwebrequest/response. I'd like to incorporate proxies with that program. I was just wondering whats a good way to verify if proxies are working or not?
View 1 RepliesI have an application that has 4 WebBrowser control to monitor a commercial website. I would like each WebBrowser to be using its own proxy however it looks like the proxy setting affects all the browsers and cannot be set on an individual basis.
Is there a way to have individual proxies for each WebBrowser control?