In the following LINQ query, i would like when the Loc=Locale.Gr all the records with GrID=100 returned and when the Loc is anything else all the other records with GrID <> 100 returned.How can i achieve this one? I tried something like the following, but it is totally wrong.
PrivateSub Test(Byval Loc as Locale)
Private Const GrID as integer = 100
Dim Query = From c In Mob Where c.CountryID = IIf(Loc = Locale.Gr, GrID, <> GrID) select c
End Sub
How does one check to see if the system time is equal or not equal to a specific time? So, say I want to perform an action if your system time is between 6pm and 6am. Or something similar?
I have 10 checkboxes on my screen. I have a variable setup called "case" as a string. I want to know how I can say: If checkbox1 is checked then case would be equal to "this". If checkbox2 is checked then case would = "that" Example of something I tried to cook up but didn't work because it tells me that I can't only use this in a "select case".
Dim Case as string If checkbox1.checked = true case = test1 end if If checkbox2.checked = true [Code] ......
Yesterday I asked why a adding 10 times 0.10 to a double is not equal to int 1;in VB Why (1 = 1) is False.I got an excellent answer. The overview is because:Floating point types and integer types cannot be compared directly, as their binary representations are different.The result of adding 0.1 ten times as a floating point type may well be a value that is close to 1, but not exactly.I can see the reason why now. However, if I do something like:[code]In this case I really obtain equality between double 1.0 and int 1. I thought then that double were only approximations so I would expect d to be somehow a value close to 1 as in the original first question. Why is not a good idea to compare directly different data types (in this case double - integer) and why I this time I obtain equality ??
I have a Date variable startdt and a String variable hdnsdate. Suppose if startdt has the value in the form 3/1/2012 and hdnsdate has the value in the form 03/01/2012. Than how can i compare that these two dates are equal in vb.net. In if condition of my program i want to do this check. In case the two dates match move out of if loop otherwise go into the if loop. E.g A sample in C# what exactly i want.
I'm a little foggy on System.Type versus an actual class type (like Object or XmlDocument) in .NET... will this code correctly determine if the type of a particular object is equal to a class I specify?
// Given "myObject" (unknown type), and some class type (let's say "MyClass")...
If myObject.GetType.Equals(MyClass)
If TypeOf(myObject) Is MyClass[code].....
Which one is correct? Bonus points if you can provide some information on what a class identifier is versus what a System.Type is. :)
Note: The language doesn't matter here, VB.NET or C# is fine, the code above is pseudocode.
I would like to compare dates (not times) for 2 datetime variables. I get one of the dates from database as follows and comapre it with yesterday.How can I do it?
Why does the first if statement evaluate to true? I know if I use "is" instead of "=" then it won't evaluate to true. If I replace String.Empty with "Foo" it doesn't evaluate to true. Both String.Empty and "Foo" have the same type of String, so why does one evaluate to true and the other doesn't?
//this evaluates to true If Nothing = String.Empty Then
I'm trying to set a text box equal to a value in dataGridView and I keep getting an error index out of range.The dataGridView is data bound to a stored procedure. When I move the text box setting to initiate after the form loads and a button is pressed it works fine; however, when it tries to automatically load after the fill command it errors out. The following code is what I have:
I want to test if an image in a picturebox is the same to another image in a picturebox?Also, i get my images from a listBox.I need to use i as a conditional in an if statement.
If (picBox2.Image = picBox1.Image) Then ' code ... EndIf
How do I declare/define a ResourceManager in the following code so it doesn't equal Nothing when it reaches rm.GetString("Magnitude") in the following code? My.Settings.. is returning a valid string.
The user will imput a number value then a - then some words after that. I just want the number value. But when I try to debug the app it breaks on this line of code with this error. Argument 'Length' must be greater or equal to zero.
In my decryption statement I am getting Argument 'Length' must be greater or equal to zero. is this statement wrong DecodedStr = Mid(DecodedStr, 1, InStr(DecodedStr, Right(DecodedStr, 4)) - 1)
I disabled an exception because it was bugging me i couldnt find an intermittent error. My program reads textmessages from a phone, however a problem sometimes arises, and I am slowly pinpointing the areas of the code that cause issues. I have found however that it is sometimes here:
'Get a string of certain length Shared Function GetString(ByRef PDUCode As String, ByVal Length As Integer) As String
[Code]....
check to see if length is zero AND thereofre try again in a moment, (because it usually works second time for some reason). I can think how to get around the exception
What I want is ListBox1 and ListBox2 above are not same Item ListBox1.Items.Add("2") ListBox1.Items.Add("4") ListBox1.Items.Add("6") ListBox1.Items.Add("8") ListBox1.Items.Add("10") [Code] .....
I'm facing a problem that Google couldn't solve yet!I'm trying to store URLs in an XML file. Problem is that these URLs contain Equal Signs (=) in them. And that generates an error.Here is my code: (**token is a variable that contains the URL)
Dim child As String = vbCrLf & "<Link URL='" & token & "'></Link>" Dim fragment As XmlDocumentFragment = doc.CreateDocumentFragment fragment.InnerXml = child
I'm trying to load some data from a MySQL table and sort it so two equal rows doesn't come consecutive. I've been trying to do this on the server-side, but it looks like it's impossible. So I'm wondering if it's possible to load the data into a dataset and sort it there or something like that? I'm open for all solutions, both on the server-side and client-side.
I have been searching the internet trying to understand in its simplist form why this behavior happens.
Dim mysingle As Single = 456.11 Dim mybool As Boolean = mysingle = 456.11
In the lines above mybool becomes false. I found this behavior when putting the single into a double I found extra digits showing. The .net documentations states a single is an approimate value I gatehr a single is a 32bit floating point number? But why are extra digits appearing when I have explicitly said what the number is.. surely the memory should store that numbers either side of my number are 0 to fill up the memory location?
will result in selecting two items simultaneously if I click on "James", even though I chose SelectionMode="Single". It's even the same behaviour when I use a helper class with a string-property to display in the ListView. It seems like the ListView is evaluating the Items and selecting those which are Equal() rather than ReferenceEqual(). Is there a way to change this behaviour so that the ListView treats every item individually?
