I'm trying to find a device but the function return always error code &h57 that means, I hope, Incorrect parameter. My code is:
Imports System
Imports System.ComponentModel
Imports System.Collections
Imports System.Windows.Forms
Imports System.Data
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I'm making a Visual Basic GUI application to display whether a number of my ports are open for people to know whether things like my website and my Minecraft server are open.My problem is I have absolutely no idea how to do this in Visual Basic.Basically, I'm asking for something which sends a signal to an IP with a specific port, if it is open then return true, if it's closed, return false. Similar to: http:[url]....
View 1 RepliesI am trying to connect to the Oracle 10g(32bit) database through my Visual Studio 8 Team System(64bit) on my Windows 7 Home Basic(64 bit), ihave already downloaded and installed the oracle data provider for .net(64bit) but still the error that i am reciecing is "OCIEnvCreate failed with return code -1 but error message text was not available." i run the program as administrator with all the permission for registries access. My code is as follows
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In VB.NET on a boolean function if you run an Exit Function line will it return false?
View 4 RepliesSub pageload() Handles Me.Load
Dim bom As New List(Of Car)
Dim car1 As New Car With {.Name = "Pea", .Year = 2}[cod
WHY??? I mean the object has the exactly same data, so why does itee]..... say it is not contained?
It just return false no exception. Nothing.
Declare Function InternetGetCookieEx Lib "wininet.dll" Alias "InternetGetCookieExA" (ByVal pchURL As String, ByVal pchCookieName As String, ByVal pchCookieData As System.Text.StringBuilder, ByRef pcchCookieData As System.UInt32, ByRef dwFlags As System.UInt32, ByVal lpReserved As Integer) As Boolean
Public Function GetUriCookieContainer(Optional ByVal uri As String = "") As String
Dim result As Boolean
Dim cookiedatasb As System.Text.StringBuilder
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how to return TRUE or FALSE value in checkedlistbox in a Button click.
For lngCtr = 0 To checkedlistbox .Items.Count - 1
strText = strText & ", " & ........................? Next lngCtr
I Expecting result is . When will click the command button.. that time display
one message window, then show result : TRUE,FALSE,TRUE,TRUE
Im putting in an image in a specific column.
EX
[Column1] [More Columns]
Image |
Im trying to make it so if the user moves column1 it will not work. But still allow the user to change the order of the other columns.
Update problem : When i check DataSet.HasChanges() it return false, unless position change (move next or previews) it return True.
After position changes every things is OK and updated!!
this is the
PHP
Private MyAdapter As New OleDbDataAdapter
Private MyDataSet As DataSet
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I have a HTTP class that gets content from URL's, POST's content to URL's etc and then returns the raw HTML content.In the function inside of the class it detects if there is a HTTP error and if so I would like to return false but will this work if I have declared the function to return a String?
Code Sample of what I am trying to do (Note the Return Content & Return False if a HTTP error code is detected)Public Function Get_URL(ByVal URL As String) As String
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im trying to get mac adddress from this code but i get eerror on END FUNCTION line it says this "function 'getRemoteMac' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used." what am i missing here?
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I have a windows service written in .NET 2.0 that will run every 5 minutes and executes bunch oracle SQL/PLSQL scripts based on time/validation, it throws the above said error some times against some SQLs, the same SQLs run fine at later point without any error, I have no idea what is going on with the app. I am not sure if this has any thing to do with oracle connection pool as I am properly closing the connections after every SQL execution.
Exception:
System.Exception: Unexpected return code: 1 at System.Data.OracleClient.DBObjectPool.GetObject(Object owningObject, Boolean& isInTransaction) at System.Data.OracleClient.OracleConnectionPoolManager.GetPooledConnection(String encryptedConnectionString,
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i have this code for saving my DGV as a comma separated text file:[code]It saves fine, but where checkboxes are unchecked, or "false" in the text file, these show as blank columns which then throw errors when i reopen the text file into the datagridview.how can i get my code to save checkboxes which are not checked as a "false" value.
View 17 RepliesI'm writing a little program for class that determines what your Chinese Animal Sign is based on the birth year you input. My test expression for the structure is a boolean. If it is true, the case is entered.
The value entered must be at >= 1924. If not, the first case should display an error message. If it IS >= 1924, it passes to the next case to see if you were born under the first animal sign and so on.
I set a breakpoint to find out why it was displaying the error even though I input 1924. The boolean for "< 1924 = True" comes up false, so that case should be skipped, I thought. But the code enters that case anyway and displays the error.I'm new to case structure, but I understand if statements very well. What am I missing?
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Dim foundit As Integer = 0
Dim intResponse As DialogResult
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I have a form called LogIn.vb which has no errors. After log-in, it opens the MainForm.vb which IsMDIContainer property is set to true. From the MainMenu, it opens a child form called Assure_Benefits.vb So far no problem up to this point. When Assure_Benefits.vb loads, it displays 2 DataGridViews with datasourses from my 2 tables in my database.
There is still no problem with the loading. Now, to show the difference between different user types, I only allow the admin to edit the DataGrid. SO I set the readonly property to true when UserType = "user".
I have no problem doing that. My problem is I want to add some codes besides the readonly being set to true and false but other codes are not executed and the program does not display any errors at all. i tried to add messageboxes on the if and else conditions to try if added codes will work but even the messagebox does not appear though the codes next to it are properly executed.
When my Assure_Benefits.vb loads I call for the subroutine below.
Private Sub SetControlProperties()
If LogIn.UserType = "admin" Then
MessageBox.Show("Yes") 'This line is not executed
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I can't seem to understand why the first code is not executed when the next codes works fine.
Control.CheckForIllegalCrossThreadCalls = False
View 6 RepliesI have a VB 2005 WinForms Project which is giving what I think is a false error.On the Designer screen for the main form (which normally displays the form layout etc.) I get:One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.'. ctor' is not a valid identifier.
View 1 RepliesVB.Net MyExcel.Close(SaveChanges:=False) throws an Error
View 7 RepliesUpdate with SQL Generating this Error: Could not find stored procedure 'False'. I'm not using a stored procedure i'm doing a simple update
Dim cmd As New SqlCommand
Dim connconnection As New SqlConnection(conn)
connconnection.Open()
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VB GridView control will not allow code in the vb code file to access a data column that has its visible property set to false. When it is set to true, the data column can be accessed with no problem. Any suggestions as to how to correct this? I have looked through the documentation, text books, and I have not found anything that gave me any clue as to what the problem could be. I thought that the property was just applied to the column, not that it would remove the column from being accessible.
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I'm attempting to use the Left function to extract the 3 leftmost characters from a string.
I declare the function as follows
Public Shadows Function Left(ByVal str As String, ByVal Length As Integer) As String
End Function
I get a notification that "function Left doesn't return a value on all code paths"
I am trying to return a structure from a class.vb file to an aspx page. Is this possible, if so how would you do it in the aspx page and the class.vb file?
View 1 RepliesPrivate Sub buttoncontrol()
For i As Integer = 1 To 10
(Button&"i").visible = false
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Private Function ViewPropertyCast(ByVal type As String) As String
Select Case type
Case "smallint"
Return "Short"
Case "nvarchar"
Return "String"
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Function can't return a value on all code paths.[cde]...
View 2 RepliesI am getting the warning that the function doesn't return a value on all code paths.
Function newgradelevel(ByVal valscore As Integer, ByVal strgradelevel As String) As String
If valscore >= 70 Then
If strgradelevel = "Freshman" Then
newgradelevel = "Sophomore"
ElseIf strgradelevel = "Sophomore" Then
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I am new to VB.net windows application
i am using VS2005
and oracle client for database connection
i am getting this error when i run the application
"ociEnvCreate failed with return code - 1 but error message text was not availabe"
I have a main page. How can I open a new web page (Url assigned in code) and get the return URL back in VB event when the page is closed.I have used a regular Button control to open the page with desired url: Button1.Attributes.Add "onclick", "window. showModal Dialog('" & url & "')")but I don't know how to get the REtURN URL from this page.
View 1 RepliesI'm trying to get my head around this issue, on a few of my functions i get a warning " 'functionDealWithHiddenFields' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used."Example function:
vb.net
Function functionDealWithHiddenFields(ByVal HTML As String, ByVal numHiddenFields As Integer, ByVal X As Integer)
[code].....
