I am trying to write an IF statement that checks to see if a certain String variable is not equal to a certain value. What is the best way to do this?
Method #1
IF NOT(Nametxt.Equals("Fred")) Then
x = 3
[code].....
[code]How to write the code that the secret question the textbox is equal ("What is your favourite food?")? and the secret answer textbox is equal ("Chicken Rice")
View 3 RepliesI have a simple question about string concatenation. Following is the code. I want to ask why s6 = "abcde" and not "akcde"? I have change the s2 value to "k".
Public Class Form1
Public s1 As String = "a"
Public s2 As String = "b"
[Code]....
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
[CODE]...
I've been having a glitch in my program for the last couple of hours in development. After some investigation, shows that one of my string variables apparently not what it says it is. Lets take a look:
[Code]...
I have a string which can be of any length. I want to loop tthrough this string and if there 53 characters assign that to Variable1, then loop round again and assign the next 53 characters or less to variable2 etc etc until the end of the string. Ideally I would not want to split words - but that is another problem.....
View 10 Repliesi have a listbox that contains the words "week1", "week2",all the way up to "week52" and when i select a week from the listbox it will retrieve a value from a mysql database that will represent a progress bar value. my progress bar has a range of 0-120 and i would like to have all the weeks that have values higher than 100 to be highlighted or marked somehow, in the listbox. so my question is, "is there a way to set the background color of certain weeks in the listbox to orange based on the value that they represent on the database?
for example for "week1", the value is 114, so when the listbox loads, i want the background color of the item "week1" in the list to be orange (indicating that it's current value is higher than 100)? i know that this requires me to implement a user defined drawing function for the listbox items but i dont know where i would even start. i would like this to be somewhat automatic so that it checks the values and changes the background colors of any value higher than 100, instead of me specifying a name of the item.
I'm just messing around coding a ID Checker that checks registry value. if it does not equal to the string, then the program will close as so:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim check As String
check = "XXXXXXXXXXXXXXXXXX"[code]....
Now what im trying to do is, where the 'check' is, i want to add more than one UniqueID so that other users can use the app. Lets say a user with a UniqueID of YYYYYYYYYYYYY purchased my app and recieves updates.
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
[Code]...
This must've have been asked before but I couldn't locate it. In a mixed code project (VB and C#) we were debugging some old Visual Basic code where a statement as follows could be found:
If Request.Params("xxx") <> "" Then
'do something
I considered this a bug as Request.Params could be null, in which case the statement would've become false which wasn't the idea. So I thought. I just found out, -- probably for the tenth time and I will keep forgetting -- that the following two statements are not equal, while Nothing in VB should be equal to null in C# (thought I):
if(String.Empty == null) // always false
If String.Empty = Nothing Then ' always true
Should I dismiss this as a typical Microsoft backward compatibility effort, or should I consider this a huge error in the VB.NET compiler? Does anybody know the Microsoftean opinion on this oddity?
I have a form that I am adding a set of buttons to. I am adding an event to those buttons. I need this event to function slightly to determine what button was pressed.
I need the button to simply set a string variable equal to the clicked buttons text so I can determine what button was pressed.
How can this be accomplished?
''Adding the buttons''
For Each dr In dtMenus
Dim strMenuName As String
strMenuName = dr.Item("strMenuName").ToString
[CODE]...
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?
View 1 RepliesMy goal is to upload a string to a txt file on an ftp server.Here is what I have found so far:
vb
Dim clsRequest As System.Net.FtpWebRequest = _
DirectCast(System.Net.WebRequest.Create(RemoteFilename), System.Net.FtpWebRequest)
clsRequest.Credentials = New System.Net.NetworkCredential("usr", "pw")
[code]....
Is there a way to convert a String into something that clsStream.Write will accept?
I am looking to write the contents of a dictionary to XML. I have written the dictionary contents to a string as i have been told it is easier to write from a string to XML instead of from a dictionary. But im not sure if this is correct?
Is there any way to write this to XML from the dictionary or string?
Say I have some text like this: blah blah
this is my text and I like it,some more text here .I am trying to write a function that would get a string of text like that and put it into a single line. I've tried string.replace(vbcrlf, ""), but that doesn't get rid of all the line breaks. Can someone help me out here?
I have an application that will be called by a database(this application is called from an access shell that uses SQL Server Tables), my question is do I need to provide a connection string to write to the database or since it is already open I can just pass the insert statement. If I am to provide a connection string do I use OLEDB JET 4.0 or ?
View 4 RepliesI have a multiline string that is called password (as you can see in the code below) that i want to save to a text file:
Dim
password As
String
[code].....
i need to write more than one string to a text document. for instance if i use mutiple user inputs and get this information:
Username= Tom password= PassW0rd
status= Enabled what is the best, simplest way to add these 3 string to one text document?
.Computer.FileSystem.WriteAllText("C:User1", Text as String,
False) will just do one line in a text document.
Is it possible to load a content of a MIDI file into a string and then save the string back to another file? I have been trying for a while, but no luck...Although I have no error, and the new file, view with notepad, looks the same as the original, but it does not want to play..
Dim urlpath As String = (Application.StartupPath & "UserMIDILibrary"
Dim fname As String = Path.GetFileNameWithoutExtention(pathload)
fname = fname & ".mid"
[code]....
I am currently using a timer to sample data that is coming in from a microcontroller. I would like to take this data and write it to an excel file. Each sample should have its own line.[code]...
View 4 RepliesI want to write a string into a binary file.The length of the string is 22 position 1036
Write name in that chain, the length of the name varies but is always between a length of 22.
As I can fill the remaining length of the string with blank spaces?
The empty spaces in hex is "00"
how to write connection string in web.config
View 1 RepliesI am encountering a problem. I want to write a string into a text file, and string is:
[Code]....
i tried saving the string 1995030 to file as byte as a hex value.Used the following lines to do this by hand:
Dim fs As New FileStream("test.txt", FileMode.Open, FileAccess.ReadWrite)
fs.WriteByte(&H2D))
fs.WriteByte(&HB3)
fs.WriteByte(&H56)
This works as expected and everything is fine until this point.Now i tried to solve this problem by code.Tried the following:fs.writebyte(&H(str))Str contains the actual hex value to write.
I just want to assign a string value in a column that only accepts double.. There is any way to do it? I'm using a dataset and the code is this:
[Code]....
I need to write some data which is string to tiff file. I am doing in the following way..[code]ControlData is the string which is to be written to the file.I am capturing the signature from the user. This function gets the data in string format and i need to create a tiff file using the string data.When i did in this way, signature.tiff is created but when i opened the image it is giving no preview available.
View 2 RepliesThis code has changed and will be applied to another question
View 3 RepliesHow can i write a " and it not gets it like a string end/start? Example: Dim test as String = """ MsgBox(test) and that msgbox would display a ".
View 4 RepliesI am trying to write a program that separates a string into 2 substrings.Lets say I need the entire string to be 15 letters long.I need to break the string up so that the program reads it as two words.Lets say that the first word has to be 8 letters long and the second word has to be 6 letters long.So if I type it like this: Computer Screen
That should be 15 letters including the space between the two words.I need the program to read the string to make sure that the entire string is 15 letters long and if its 15 letter long continue, but if it is not 15 letters long stop and give me an error.If is 15 letter long next the program needs to read and make sure that the first word is 8 letters long and if it is print out the first word and continue but if not it needs to give me error.
Lastly if the first word is 8 letters long it needs to read and make sure that the second word is 6 letters long and if it is print out the second word and then continue, but if it is not give me error.The problem I'm having how to declare the first and second word and substrings, can someone please help me understand how substrings works and declare them after I have declared a string.
I want to write the connection string of my application in app.config file. I dont know how to write it or how to dynamically change it from my application source code either. My App.config file shows like..
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.diagnostics>
[Code]....