While searching on how to escape a single quote in String.Format, I found the answer at SO: Escaping single quote in String.Format(). It seems to be different for VB though. I tested it, and indeed C# needs
string s = DateTime.Now.ToString("MMM d \'yy 'at' H:mmm");
while VB needs
Dim s As String = Now.ToString("MMM d 'yy 'at' H:mmm")
Why does C# need a double backslash, and VB a single backslash? This might be a bit of a silly question to C# users, but while I can read C#, I'm not used to writing it.
I use SqlParameters when executing database statements. I know that I can replace a single quote with two single quotes... but in the past SqlParameters took care of this for me. I have two projects.. in one, the SqlParameter does this and it handles single quotes fine, in another, it does not and I'm at a loss why (I even copied and pasted the code):
I have this block of code that sets up my sql parameters for a stored proc that does an insert.
Dim sproc As StoredProcedure = New StoredProcedure("UsersInsert2", DataAccessConfiguration) sproc.AddInput("@ID", SqlDbType.NVarChar, 10, entity.UserId) sproc.AddInput("@PCode", SqlDbType.SmallInt, entity.PriviledgeCode) sproc.AddInput("@Pwd", SqlDbType.NVarChar, 10, entity.Password.ToString())
[code]...
I've tested the stored proc in SSMS and it works.The problem is when I try to call it from the application. it fails. the @@rowcount = -1. I've tried returning an error code from the db... no dice. keeps coming back as -1 what is going to get executed looks like this
I have a filter expression that contains a single quote (Al ' ABC), and i am using the Select statment of the datatable where i want to select all rows containing the filter expression, but i am encountering an error. how can i resolve it?
I have a filter expression that contains a single quote (Al ' ABC), and i am using the Select statment of the datatable where i want to select all rows containing the filter expression, but i am encountering an error. how can i resolve it
Dim find_id = From p In dbContext.Residents _ Where p.person_name = occupant _ Select p
I then pull the first returned ID like so:
Dim building_id As String = find_building_id.FirstOrDefault.id
This works fine, except with the person has a ' in their last name, like M'arta. In this case I get a NullReferenceException.
Okay, the problem appears to be that when I am capturing the name initially from a GridView it is inserting into the value a #39 instead of ' and then LINQ is keeping things correct, so I end up with a non-match since it is attempting to match:
I have a function in VB.NET that runs a query from an MS SQL DB, puts the results into temporary variables, then updates an Oracle DB. My question is, if the string in the MS SQL contains a single quote ( ' ), how do I update the Oracle DB for something that has that single quote?
For example: Jim's request Will produce the following error: ORA-01756: quoted string not properly terminated The ueio_tmpALM_Comments (coming from MS SQL) is the culprit that may or may not contain the single quote.
I have a string like "Hello'World" and a Data Table with some records in it. One of those records is "Hello'World".he problem is, when I do a .Select in the Data Table, it only tries to search for the "Hello" part and throws an error on "World" because it interprets the ' (single. cuote) like the closing cuote on sql.DataTable.select("text = 'Hello'World'")I have gone through msdn doc, and it says I can escape some characters with [] brackets or f.slashes , but I just can't figure out: .select("text = 'Hello[']world'")
I am saving a text field that may contain a single of double quote.' or "If i use a double quote in my SQL save funciton I can save and use single Quotes. When I use a Single quote I can save Double Quotes. Yet not both.People use both, so I would like to know how I could change the delimiter to something other than a Double Quote for my text saves
However, the directories parameters contain spaces so they have to have quotes around them. I tried with single quote ' that works fine to put in the string, but the command shell executing the command ignores these. So it has to be double quote "
I have tried all methods I have fount on the Internet, for example to have a backslash before the double quote and to have three double quotes, but nothing seems to work. I get a compiler error as below.
I read in a Byte Array generated from a function called from an external DLL file and then converted (encoded) it into a String. In the Locals window (shown below), msg does not have a trailing double-quote.[code]...
If I needed to escape a double quote character within a string literal I'd use two consecutive double quotes as follows:
Dim name = "Chuck ""Iceman"" Liddell"
However, it doesn't seem like consecutive # works the same way. The compiler is expecting a compiler directive to follow the # character, even when its enclosed in double quotes. How can tell the compiler that I want a # character in my string?
EDIT: as a few of the answers below point out, # is not a reserved character. I closed my solution in Visual Studio and re-opened it and no longer got the compiler squiggles warning me.
is there way to update having quote string eg. drug's name ('s) in vb text field ' this corrector REFUSING TO UPDATE TO DATABASE. this kinds of error always comes up Incorect Syntax Near 'S'.Unclosed Quotation Mark After character string '))'.
I noticed that if I leave off the terminating double quote for a string constant in Visual Studio 2010, there is no error or even a warning, i.e.
Dim foo as String = "hi
However, the continuous integration tool we are using flags an error:
error BC30648: String constants must end with a double quote.
Is there some language rule in VB.Net that makes a terminating double quote optional "sometimes"? Is there some setting in Visual Studio that will make it flag this as an error, so I can avoid "breaking the build" in this way?
The reason this is being done is at this point we have no idea what the column contains.However, if the formatter is "{0:MM/dd/yyyy}" and the DataRow("ColumnINeed") is an integer containing 42, String.Format is returning: MM/dd/yyyy In this situation I need it to throw an exception instead of returning nonsense.Is there anyway to make String.Format throw an exception if the object does not match what the format string is expecting?
I am writing a small app that is retrieving data from a device connected to a virtual com-port. I connect without problems to the device using the settings 9600-8-N-1.
I need to send the command <esc>MS , the device then sends back the data to a computer. I have tried this using Hyperterminal with success. I also did this with Excel and VBA. I used the MSComm32 Active X control:
MSComm1.Output = Chr$(27) + "M" + "S" + Chr$(13)
Msgbox(MSComm1.Input)
This made the data from the device pop up in a messagebox. I am writing a winforms app in vb.net, using VS2005. I have a form, on which I have a Placed a SerialPort control, named sp. My sample code is as follows:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e
[CODE]...
This returns the error message "Error: expecting a command". I have done som tests in HyperTerminal, and have concluded with:
-If I dont send <esc>, I get error "Expecting a command"
-If I send wrong command (ie MD instead of MS) i get error "Bad command"
Based on this, I suspect that I don't pass the escape character correctly to my device. So I wonder how to do this?
I have a CSV file where the values are in double quotes and seperated by a comma. I'm getting incorrect data if I try to seperate the string with my Split function. How do I do it?
So I need a format string to pass to String.Format that would "move" the decimal point.I can't perform any math operations before doing the String.Format, so it has to work right off the bat.Basically I'm emulating a formatting string from a proprietary server. In it if I say:
"MR2"
for the value:
12345
The result is:
123.45
I'm close with this, but it's not spot on:
String.Format("{0:#0.##}", 12345)
an extra, but not necessary... there is also MR2Z, which moves the decimal 2 left, but if the value is 0 "" is returned.
