Global Variable - Test And Production Code In A Case Statement
Jun 3, 2009
I have an application that contains both test code and production code. The test code points to the test files on the local machine while production is located on the server. I comment out the production code when testing. To save some time I figured I would create a Global Variable integer called pTest and encase the test and production code in a Case statement so that if I set pTest=1 then the test code will run and if pTest=0 then production code will run.
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Apr 1, 2012
I am trying to figure out how to test two conditions in a Case Statement.[code]...
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Jan 3, 2011
I'm using some VB.Net code to manipulate files on my system - the idea is that the code checks if a file exists, and based on a value read from a text file elsewhere the system decides what to do... For this I'm using a 'select... case' statement to decide on the action to take. However, when assigning a value to the variable, the code doesn't even find the option to go for... Here's the VB code:
[Code]...
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Mar 21, 2006
When my form loads it adds some handles (using AddHandler) to a sub (showStatus). What this sub does is checks which control activated the sub (using sender.Equals) and displays text in the status label (status) accordingly.For this I use an If...Then statement for each possibility. There are many possibilities and my code get cluttered. Is there a way to do the same thing with a Select...Case statement. I tried: Select Case sender Case tbOne : status.Text = "blahblahblahblahblahblah" End Selectwhere: tbOne is a textbox, status is a StatusLabelIt gives me an error though, saying "Operator '=' is not defined for types 'Object' and 'System.Windows.Forms.TextBox'."Any ideas on how I can get this to work with a select case statement?
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Oct 31, 2011
I have coded a case statement that changes the background colour of a panel. [code]When the code is run, it works for the case of colour1 that is NOT 1 or 2. However, when the colour1 is 1 or 2, it is supposed to pick a number from set array and run another case statement. Instead, it only picks the last value (for 1, this is 5, and for 2, this is 7).
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Oct 24, 2011
What is the best way to easily switch from a test database to a production database in vb.net and MySql, when all MySql connection strings are currently hard coded?
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Jan 13, 2011
I am used to C like languages such as C#. I added a list box with a list of names. In the code behind I added the below code. When I run the code I am getting the MessageBox but it will state "UserName favorite color is " but does not show the color. I thought it might be misspelled or non-matching names but this is not the issue due to the names being correct.
Public Class Form1
Private Sub lstData_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstData.SelectedIndexChanged
'Declare Variables
[CODE]...
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Oct 28, 2009
i have a program using a select case to convert letters to special charaters. My question is how can I get the code to read upper and lower case letters without having to put the upper case letters in my select case statement. Example: Part of my code is
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May 17, 2012
As you can see from the code below there is a lot of repeated code. I want to move that code outside the if statement as it's performed for each if, but the Dim employees variable I'm declaring is causing my issues. I don't know how to declare the variable outside the if statement as it's a linq-to-sql query, so I can later define it within the if statement. I can't access employees outside the if statement, so I can't just put the repeating code outside the if statement.
Private Sub btnFindEmployee_Click(sender As System.Object, e As System.EventArgs) Handles btnFindEmployee.Click
If chkSrcEmpID.Checked = True Then
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Mar 24, 2010
Usually when you add one (in Visual Basic), it pops up a message asking if you want to enable an option that lets the test access things like private methods etc.
However, I am editing a solution that does not have this enabled. I'd like to enable it so my unit tests will work, but I can't find the setting.
Can anyone tell me how to enable it after the project has been created?
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Jun 23, 2010
A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
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Jun 19, 2012
It looks like impossible but...
Try
Select Case command
Case 1
smth()
Case 2
[code]....
Firstly Case 2 runs. Throws exception. And right after this debugger shows that next processed statement is Case Else. Only after Case Else throws own exception Catch block start working. I've never seen this trick. Why can this happened?I'm sure the block is entered once (not like this:first enter hit Case 2 and second hit Case Else).
Update:-To Matt Wilko. Thank you for answering. I've switch to Strict On in Options of VS2010 but nothing has changed. Command is variable, not function. Watch tool shows that on each step Command is the same ( Command = 2).
Fixed. Yeeaaaahhh. I simplefy code to
Try
Select Case 2
Case 2
[code]....
and change project to Console app. This works as I mention. The fix was in Release mode. I was debugging in Release mode. When I switch to Debug mode everything goes as it should.
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Jun 17, 2009
From my initial readings on unit testing it is wise to put all of your setups and tests in a separate project from the code being tested.I've recently begun reading The Art of Unit Testing, trying to discover how to break dependencies on things such as database calls.The methods offered involve changing areas of the test code, such as adding specific interfaces and "stub" methods to the production code.This seems to defeat some of the good things about keeping tests and production code separate.Is there any recommended dependency-breaking technique that doesn't involve changing production code?
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Aug 1, 2011
I'm using VS 2010 Professional built-in test cases. I've got a class that has a read-only property that looks something like this:
Private _server As IServer = Nothing
Public ReadOnly Property Server()
Get[code]......
In my test cases I want to make a fake server implementation so I can test some of the class methods without actually hitting the server. I've looked around and have seen the InternalsVisibleTo attribute, but that seems to only allow access to Friend-level members. Is there any simple way to get access to these members, aside from declaring them Public/Friend?
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Mar 9, 2011
I'm still trying to understand and use Use Cases and Test Driven Development, but having a hard time crossing the line. I'm hoping someone can provide a good example of how setting a datasource and/or databinding a gridview could be accomplished using Test Driven Development. Here is my pseudo approach at it.
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Jul 11, 2010
I'm building a listview search feature in my app. (See the code below). It works really well, except if you search "T" then the code removes all items, if you search "t" then it removes every item except for those starting with "t". Is there any way to make a 'like' statement, or use some kind of wildcard to make the statement not case sensitive?
For Each itm As ListViewItem In ListView2.Items
If itm.Text Like TextBox1.Text & "*" Or itm.SubItems.Item(1).Text Like TextBox1.Text & "*" Then
Else
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Oct 26, 2009
how would you change this if..then...else to a case statement? i've done simpler ones but this one i dont seem to be able to do it..
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Jul 15, 2010
What is Different between global variable and public variable?
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Mar 6, 2011
i just have an error about this code:
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Jun 20, 2009
I am not sure what to do with the following. The code below reads from a massive list of phrases, checks for a certain conditions and if all succeed a) adds the output to the new_question list b) keeps the value of the variable incremental to "level_0".
If the fourth "if statement" fails, the code changes the value of the variable incremental to "level_1" and jumps to a second case statement. The problem is that for certain input the code fails form the "third if statement" and execution refuses to jump to "level_1" (bacause the fourth "if-statement" must fail as well). I tried moving the "incremental variable" between the third and the fourth "and if" but since the code reads from a list of phrases even if it returns true, execution jumps to level_1 (as some phrases fail from the third "if statement"). I hope I am making sense
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Jun 3, 2011
I just replaced a different segment of code with the select case statement and it works fine. However I don't understand what the dim is for after you do "Select case [variable name here]"
I currently just dimmed a value as nothing. I didn't specify any data type for my variable I'm using for this case statement. But it works.[code]...
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May 4, 2011
I was reading an interesting article here and it made an interesting point about the 'case' statement in vb.net vs the 'switch' statement in C#, which I've pasted below:The following Visual Basic Select Case statement can't be represented in C# with a single switch statement:
Dim Condition As Integer = 55
Select Case Condition
Case 1, 3 To 5, 10, 12, 14, Is > 50
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I've always found the switch statement in C#, with dropthrough and consequentrequirements for a break in each case, to be a bit unwieldy. Is there any reason they haven't enhanced the switch command to allow these situations? W
EDIT AFTER CLOSE: I'm surprised this was closed, really. With the number of extension methods and helper classes I've found online for other things, I thought an enhanced 'case' would be a good chance. I somewhat hoped a luminary such as Jon Skeet may have commented on the background reasoning, rather than the individuals below who've obviously thought 'religious debate' as soon as more than one language is mentioned.
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Oct 2, 2010
I am having difficulties getting a case to behave like I want it to. I have to calculate income tax using a case statement. For example if someone makes $7000 or less then they are charged a 10% tax of their input income, if they make $7000 to $30,000 it will bee 10% on $7000 and 15% on the remainder of input income and so on and so forth.determining how to set up a functioning case statement like this?
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Dec 17, 2011
I've got the following that has got multiple values of a particular variable and I don't want to stack up to a lot of IF ELSE statements to handle them, so I'd be grateful if some one could very kindly modify the code by using the SELECT CASE statement. Also, I'd like dgMarksEntry.Item(7, i).Value and dgMarksEntry.Item(8, i).Value to handle RANK and COUNT the number of items entered respectively. [Code]
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Sep 22, 2010
Is there a way to use the Select Case statment in VB.net for beginswith? Or do i have to use a long elseif? Example:
If text.StartsWith("/go") then
elseif test.StartsWith("/stop")
elseif test.StartsWith("/continue")
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Jul 13, 2011
I am trying to type in the food Pizza, Taco or Crepe and get a picture of the food to come up along with a message box that gives the country.[code]
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Oct 20, 2009
I am not really a fan of if statements. I think they should only be used when comparing different values like this:
Dim status as boolean = false
Dim number as integer = 5
if status.equals(true) then
[Code]....
or msgbox on a different line whatever you want.... What is this rule about that select case should only be used if there more then 2-3 options. Is it wrong to use a select case instead?
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Sep 1, 2010
in combo box string is xxx and yyy and zzz.we have to store the value to each string like xxx=10, yyy=20 and zzz=30. formula is string(xxx)/1.71^(1/2).. if we select xxx formula have to take value 10 or yyy means formula have to take value 20.
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Apr 15, 2010
Is there anyway I can build a Select statement that uses the Contains function? Like this:
Select commentStr
Case commentStr.Contains("10")
Case commentStr.Contains("15")
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Mar 10, 2009
am using VB.NET 2008 and am a complete beginner. am writing a programme that requires the user to select a number from a NumericUpDown control and the number selected will enable the equivalent number of GroupBoxes on a form following a click event.
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think that the argument to be passed to the method or sub will be the Case condition but how do I return the corresponding code to enable the GroupBoxes? I have the same issue with resetting all my textboxes to some default text then the user activates more then one event.
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