VS 2008 Testing If An RTF File Is Empty?
Aug 29, 2010
When listbox is added to by the user a number of empty RTF files are created and saved with a string variable SavePath1,SavePath2 and SavePath3. The user can then add date to 3RichText boxes and save the data. The data can then be cleared from the RichText boxes, anotheraddition to the listbox and fill the RTB and save. I need to trap the RTBs being filled and the clear button being pressed before the data is saved. To do this I need to test for empty files and tell the user the data has not yet been saved.
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May 1, 2010
I'm encountering a scenario where I need to see if e is "Empty" before I execute code (don't execute if it's Empty).In a routine similar to the following, I can see while debugging the code that "e" is empty, but I can't figure out how to test it in the
Private Sub RadioClick(ByVal sender As RadioButton, _
ByVal e As System.EventArgs) _
Handles Radio1.Click, Radio2.Click, Radio3.Click, Radio4.Click
[code]....
For some reason, I'm encountering situations where this event is being raised by clicking anywhere on the form. However, when this happens, e is Empty. If I can test for that, then my bug will go away, but I haven't been able to figure out the syntax.
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Mar 14, 2011
I used to run into problems with this in VB6, too...
If Not ds_Students.Tables(0).Rows(0).Item("ClassDay2").IsNullOrEmpty Then
txtClassDay2.Text = ds_Students.Tables(0).Rows(0).Item("ClassDay2")
End If
This produces "Public member 'IsNullOrEmpty' on type 'DBNull' not found."
And is there a different test for fields of different data types?
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Feb 24, 2010
I have a nullable database field of type varchar. I am writing a unit test for a service method that retrieves the value of this field. The service method uses a custom DAL that returns a value of String.Empty if the database field is Null (this is desired behaviour).
[Code]...
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Jul 20, 2010
I am using VS 2008 to upload a zip file created earlier in the program, the ZIP file is created where expected on the FTP server but it is empty
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May 15, 2009
I'm looking into adding some unit tests for some classes in my data access layer and I'm looking at an update routine that has no return value.It simply updates a row based on the id you provide at whichever column name you provide.Inside of this method, we collect the parameters and pass them to a helper routine which calls the stored procedure to update the table.Is there a recommended approach for how to do unit testing in such a scenario?
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Aug 25, 2009
I use VS team system 2008. At the moment i need to test some business classes, i have found two kinds testing NUnit and the unit testing provided by the VS team system. what are there differences?
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Dec 13, 2009
How can I open a tab delimited text file and remove the columns that are empty and the save it? Empty columns are those that have no value in the first row.
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May 13, 2010
I'm building an Active Directory wrapper in VBNET 2.0 (can't use later .NET) in which I have the following:
IUtilisateur
IGroupe
IUniteOrganisation
These interfaces are implemented in internal classes (Friend in VBNET), so that I want to implement a façade in order to instiate each of the interfaces with their internal classes. This will allow the architecture a better flexibility, etc.Now, I want to test these classes (Utilisateur, Groupe, UniteOrganisation) in a different project within the same solution. However, these classes are internal. I would like to be able to instantiate them without going through my façade, but only for these tests, nothing more.
[Code]...
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Nov 8, 2009
I am wanting to test for three different things. I see example of a regex thing but completely don't understand it.I found the example below that will test for alphanumeric.But I also want to be able to test for alpha only which I was able to get based off this example but I also want t be able to test for the "-" character as well.How would I change the below to test for that character as well.[code]
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Apr 5, 2012
I tried look online for a simple task but I haven't been able to find the answer. How do you stop a code for testing? I triedexit - only works for loops and if statementsstop - kinda works, but doesn't completely stopsend - the form disappears when it ends
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Apr 29, 2009
I am using this code to test for an internet connection. As my application will have to login to a web server. However, if the user internet connection was to fail or cable pulled out. I will have to notify the user.
Ping www.google.com to check if the user has a internet connection.Public Function PingTest() As Boolean Dim ping As New Ping()Dim pingStatus As PingReply = ping.Send(IPAddress.Parse("208.69.34.231"))
[Code]...
The only way I think I can test for an Internet connection is to ping www.google.com. So I have a used a server timer which I have set for 1/2 second and in the lapsed event it will call this ping function. If the ping returns false. Then my app will take appropriate action.
Do you think using google as a way to test an Internet connect is a good thing. If google was to fail, then my app would not function. Is polling 1/2 second to much or too little? Just wondering about my whole idea if it is good or not?
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May 29, 2010
I need to determine if a set of keys have been pressed in succession. For example, if I'm looking for this combination: Up, Up, Left, Space, then any key that inteferes with the order would start it over.
I tried doing a basic test to see if it would be as straight forward as I was hoping:
VB.NET
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Up Then
[Code]....
For some reason, it doesn't let me continue the sequence. I put a MessageBox on the second "Up" and it triggered when I pressed it just once.
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Feb 19, 2009
I'm running some unit tests for a large VB.Net application I help maintain and am running into problems with tests timing out. The test run is set up so that there's no timeout limit on the overall test run, but a limit of 2 minutes per individual test. However, a couple of the tests take a lot longer than this to run, so we tried adding the timeout attribute to the test's declaration, i.e
<TestMethod(), Timeout(15 * 60 * 1000)> Public Sub DoSomething()
for a 15 minute timeout. However, the 2 minute timeout set in the test run properties seems to be taking precedence, even though it says that the timeout attribute should override it.
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Feb 9, 2011
Consider the following method that stops a service:
Public Function StopService(ByVal serviceName As String, ByVal timeoutMilliseconds As Double) As Boolean
Try
Dim service As New ServiceController(serviceName)
Dim timeout As TimeSpan = TimeSpan.FromMilliseconds(timeoutMilliseconds)
[code]....
I agree that for domain model code that using the "traditional" unit testing approach makes the most sense as this would lead to a design that is easiest to maintain. However, for code that deals with the .net implementation of Windows API related stuff (file system, services, etc), is there really an advantage to going thru the extra work to get "traditionally" testable code?
It's hard for me to see the disadvantages of using Microsoft Moles for things such as ServiceController (or the File object). I really don't see any advantage of doing the traditional approach in this case.
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Jun 1, 2012
In this link there is a text file [URL] . However, using this code, it downloads an empty file. Why ? [vs.net 2005]
Dim Url As String = "http://stooq.com/q/d/l/?s=gc.f&d1=20110602&d2=20120531&i=d" Dim myWebClient As New WebClient() myWebClient.DownloadFile(Url, "c:file.txt")
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Jun 30, 2011
I need to check if a .txt file is empty, if it's not, the code will read the file and process the information.I know how to read .txt file. Is there a way to check if the .txt file is empty? not an empty line just completely empty?
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Jun 20, 2012
I've used System.IO to check if files exists/copy/delete in the past but I have not been able to check if the file is empty?
I have two text files, and i want to add a check to see if both files are empty, if they are empty then I want to exit the application.
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Jan 24, 2009
I am using save file dialogue box and i am saving the contents of richtextbox which is in the form. So i used the coding below. It only creating the empty file but not the text which i typed in the richtextbox.
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Nov 26, 2010
I have written a program which read a file and convert it into my required format, but the problem is at the end there are three empty rows (lines) then "End of Report" message is displayed, here is my code. [code]
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Jun 2, 2011
I have a list of files to read and have to append them all to one unique file. the problem is that when i open the first file to read. I read the first line and discard it. when i read the second line, its empty, but it is not in the original file. what im doing wrong? [Code]
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Aug 4, 2010
[code]...
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Sep 13, 2007
Somehow the User.Config file was corrupted for an instance of my VB .NET app. When access one of my user level config property (My.Settings.MyProp) I get the a ConfigurationErrorsException with the message "Configuration system failed to initialize." I looked at the User.Config file and found that it is empty, it can be opened but there is no XML text contained within.I would like to programmatically fix the file if an exception is seen. When I attempt to use any of my user level properties, I continue to get the same exception. I've tried calling the Reset() but that yeilds the same exception. I then tried Save() to see if it would write out a default version, but it appears to do nothing (the file is not updated). My.Settings appears to be useless at this point.How can I reinitialize the User.Config file to the default config settings without deleting the old file? I would think that there should be some mechanism for restoring this file back to its default. And how can I update/reinitialize the My.Settings instance so that I can access the properties normally?
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Aug 21, 2010
I'm making a cleaning program and one of the things it does is cleans the recycle bin. How do I do it for Xp, Vista, and 7? I'm on Visual Basic 2010. Also, how do I make it so that it automatically finds the username and uses it when the program deletes a folder. Right now I have it so that you need to enter your username in a textbox and then it uses that for the directories. I know it's something with SystemInformation.UserName.
[Code]...
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Nov 15, 2011
Using OleDbDataReader, how does one determine if the Excel workbook is empty? BTW, OleDbDataReader.HasRows seems to always be True even for a workbook with no data.
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Oct 29, 2010
Imports System.IO
Public Class edit_deck
Dim dsDeck As New DataSet("Deck")
Dim filename As String
[code]....
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Mar 13, 2010
File I/O and Registry :: Remove empty folders from a TreeView
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Nov 25, 2009
i'm having a problem w/this conversion code. as the title describes, the first file converted returns w/empty content, but w/the file name.the rest of the files are ok. here is the code, just paste in form and run.. i meant, run the app. ;o)
Public Class Form1
Private btn As New Button With {.Location = New Point(0, 0), .Size = New Size(59, 23), .Text = "txt folder"}[code]...
i just need to convert the files and have them return complete.there is an invisible richtextbox, which i needed to show files being converted in a past project..now, i need to get rid of that richtextbox if possible. too much extra work for a user's p.c...i am not at all familiar with changing extensions, etc..
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May 20, 2011
I'm using VB.NET 2005 Pro to write a batch file to empty folder contents, but I'm having problems putting quotations around the parameters.Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTNFCleanup.Click Create an instance of StreamWriter to write text to a file.
[Code]...
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Apr 11, 2010
How can I empty a collection in .NET? Let me specify that I don't want to destroy the collection , I just don't want it to have the objects it had before (so I can refill it from scratch) .
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