I am using the following lines and am not able to concatenate the needed values, why it is not working.
Dim rxBuffer As String = " "
Dim rxData As String = " "
Dim rxDataStringBuilder As New StringBuilder[code].....
i'm currently making an app that needs to run a query between two dates. this app will run automatically, so i need to put the dates as today and yesterday, essentially.
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Background: I have a winForm app that registers a user in the database based on the information provided, auto-generates a random password and username, and e-mails the user a link to take an application based on the marketing company selected. Problem: hen the user clicks "Send Invitation" with data inputted iton all fields except the bundles listbox in debug, the NullReferenceException Error is thrown highlighting the line: Dim MCShort As String = Trim(splitMC(0))How do I fix this issue Here's a screenshot of the web app: Here's the code of the Send_Button_Click method off default.asx.vb:
Private Sub Send_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Send_Button.Click
'TODO Add code to validate that all selections that are reaquired are met.
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I am concatenating a variable onto a path(string), i'm using a message box to display this for testing purposes, I can see that the variable is starting on a new line, which in turn when i try to open the file it doesn't recognize that the file exist...
Dim Path As String = "C:UsersstefanDesktopUni WorkYear 4ProjectsProject SelectionProjectProjectinDebug"
Shapetext = clickedShapes.Item(nextShape).Text.ToString.Substring(0, clickedShapes.Item(nextShape).Text.IndexOf(" "))
MsgBox(Path + Shapetext + ".txt")
This code works if I take out
" " + p.MIDDLE_NAME
Thus the remaining code looks like:
p.FIRST_NAME + " " + p.LAST_NAME
Maybe LINQ-to-Entities just doesn't support concatenating more than two strings at a time?
Protected Sub btnFilter_Click(sender As Object, e As EventArgs) Handles btnFilter.Click
Dim dbContext As Campus6Entities = New Campus6Entities
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I've been trying to reuse my bosses vb.net buildpacket code which he has successful used for Serial programming eg. SerialPort1.Write(buildpacket(useraddress,252,"0006","0") for the function listed below.My challenge.Create equivalent functionality for Socket BeginSend() which requires a byte array.Whether modifying the vb.net below or getting a c# equivalent to work, it has been repeatedly recommended to scrap the string concatenation approach for which I have to use Encoding.BigEndianUnicode.GetBytes() and then getting rid of extra bytes with zero values.
I'm lacking in imaging something different which would work for socket programming directly and allow me to eliminate all the hassles that c# integer conversions into string value that can be encoded trouble free.I would need to call the equivalent of the following that would return a byte array rather than a string with the following arguments
1. Source address (0-255)
2. Destination address (0-255)
3. Function code ("0001" through "0100")
4 Packet Data Unit (pdu - some integer value
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Trying to do another replace method ' Strip URL text to generate correct download link
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How do you copy a bi dimensional array in a clipboard without converting the content in a string builder?
View 6 RepliesI am using a VB script in SSIS Script Task to add header and Trailer to a flat file. The code was working fine until recently i came across a problem where the rows in the file are more than usual and resulting in a failure on script task with error`Error:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
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I am trying to build a user control that will do exactly what the SQL 2005 Connect to Server interface do, eventually create a connection string and store in a app.config file. It should allow user to select server type, server name, authentication, user name and password. It should also automatically load available servers and domain login by default.
View 11 RepliesI have a requirement to move the html text available in a string builder to a word document and open the word document after the data is appended in a VB.NET console application. I am new to console applications and am not sure how this could be done, but I am aware that if I am using a Web Application then I can use the following code:[code]
View 1 RepliesI'm experimenting with the sql command builder and it seems to do nothing when trying to update existing rows. If I create a new row and then add it then it works fine but I cant seem to update an existing record.
Heres what I have at the moment
Code:
Dim strConnection As String = "Server=myServerSQLExpress;AttachDbFilename=C:databasepath estdb.mdf;" & _
"Database=testdb; Trusted_Connection=False;User Id=sa;Password=test;"
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But I'd really like to find out why its not working when using the command builder. I'm working with VB.net 2010 express and SQL server express.
Can I do anything more or less with IDictionary? How do these two collections differ?
View 5 Repliesmy code is :
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The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
On my project, If I do String.Contains, Even if its positively true (Made a MsgBox Popup) It returns false! My Code:
Dim bad As Boolean = False
For Each item As String In adlist
If e.Url.Contains(item) Then
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DB="Source={SQL Server};Server=CALVINRUKA-PCSQLCALVIN;DataSource=DWDSCalTables;Uid=sa;PWD=;Trusted-Connection=Yes;"
I using SQL Server 2008 R2 to connect with HTML page. I trying to connect HTML page with login to SQL Database. I have try called the Source but didnt work.
I am reading a text file and I need to replace a few areas with new text that I marked with {0}, {1}, {2}, {3}, {4}, {5}, {6}. So I load in the text, save it to a string variable, and then use String.Replace but it's not working.
For i As Integer = 0 To 6
fileText.Replace("{" & i & "}", DisplayStudentData(i))
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I put all the data items into an array, then did this after loading the text file:
fileText = String.Format(fileText, dArr(0), dArr(1), dArr(2), dArr(3), dArr(4), dArr(5), dArr(6))
Is this a good way of doing it?
I am trying to display a number, stored in a dataset as a string, as a phone number. I have a label that Binds to a value but doesn't display the format that I passed as an arg:
<asp:Label ID="lbl005108002" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "phone number", "{0:(###) ###-####}") %>'></asp:Label>
As a test I tried to pass the formated string into the dataitem but that didn't work either. Is there something else I need to do in order to use this function?
m_Row("phone number") = String.Format("{0:(###) ###-####}", value)
The value displays in both cases as: 04152543926
I have the following connection string set:
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I have a hard coded connection string that DOES work just fine-
Public urlMySQLDatabase1 As String = "Server=170.200.80.90;port=3300;Database=DatabaseName;Uid=UserID;Pwd=Password;"
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why my format string(fmtstr) will not work. Here is my code.
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I have a SQL query string that gets the top 5 records from a database however 3 variables are passed with the sql query that gets specific data.[code]
View 5 RepliesI'm trying to make code that inserts something into a textbox. However, it appears the insert and remove code isn't working. Here's the
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim a As Integer = TextBox2.SelectionStart
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I have the below code that if there is no .wav file in the current directory then it goes to the default windowsmedia directory to play a random .wav file.
But for some reason if there is no file in the current folder it will not go to the windowsmedia folder, do I have something wrong?
Dim FileNames As String() = System.IO.Directory.GetFiles(".", "*.wav")
Dim FileNames2 As String() = System.IO.Directory.GetFiles("C:WindowsMedia", "*.wav")
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What am I doing wrong here?
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Update 1 This is the original string: This is what it looks like after my VB code: As you can see, the http: part is added, however the backslashes haven't been touched. Update 2 It has something to do with the slashes. Because when I replace other characters (for example a with @), then the replaced string is shown correctly. But not the slashes
Here's my code
Dim RefsUpdate As String() = Session("Refs").Split("-"C)
Dim PaymentsPassedUpdate As String() = Session("PaymentsPassed").Split("-"C)
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Or there's another way to make it, without adding a Connection String?
View 3 RepliesI am trying to check if a string is numeric but in vain. here is my code:
If Val(fnumField.Text.Trim) > 0 Or fnumField.Text.Trim = "0" Or Val(phnField.Text.Trim) > 0 Or phnField.Text.Trim = "0" Or Val(ophnField.Text.Trim) > 0 Or _
ophnField.Text.Trim = "0" Or Val(treeField.Text.Trim) > 0 Or treeField.Text.Trim = "0" Then
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I am facing a really very interesting problem with string.
My code is
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But when I comment those lines (which are uncommented in code above) its working fine.
I am taking value in filepath variable from file dialog's FileName property.
EDIT: I have also compared the values of variable stropt and strwithpara with "IF" condition and found those are same.
vb.net
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"The Vodafone Warriors under 20 side has lost in the last minute of their Toyota Cup final's match just moments ago.<br> <br> A Warriors Media release will be post as soon as it's sent." Can someone see why this would not work?
