The problem that I am facing is that I want to call a shared DLL created by qt4. Now reading the result from the DLL file is working well and good. But the problem arised while passing arguments required by the function in the dll file.The argument (both string or int) is not passed properly. Suppose I pass an integer argument 8, but 1 is passed. Whatever is my input only 1 is passed.
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I made this procedure re-use a select query:
[code..]
And I use it like this if I would want the selected value placed in a textbox and it works fine
[code...]
However if I want the value to be passed in a string like so:
[code...]
The string ends up having an empty string value. How do I assign the value I queried to that String?
Does the following work in VB 2008 for passing an array to a function:
Public Function functionname(ByVal array1() As Short, ByVal array2() as Short) As Short
Also, can ByRef be used in place of ByVal?
Private Sub SpecialMenu( ByVal ddItems As ToolStripItemCollection, method as ??)
...
AddHandler ddItems(item).Click, AddressOf method
...
How can I pass a sub address into a subroutine.
I understand delagates but not enough to figure this out.
I have a sub that creates and adds menu items to a menu and I need to use it in more than one project so I want to put it into a library.
But I don't know how pass it the address of the subs to attach to the new menu items.
I am trying to pass an argument to a sub then have it add to my listview, my code is:
Module modFunctionsSubs
'Function and sub routines
'This sub logs an even in the listview
Public Sub logEvent(ByVal statusText As String)
listViewMainLog.Items.Add(statusText)
End Sub
End Module
My argument is getting through ok, statusText but I get an error:
'Name listViewMainLog is not declared'
Can we pass more than 2 argument to our events, tell me in brief about Events
View 1 RepliesI've got several user controls and every time I add them, I post this
Dim uc As New ucTemplates ' 'ucTemplates' is the name of the actual user contrll
gbControls.Controls.Clear()
gbControls.Controls.Add(uc)
So, I'd like to create a sub that does the same thing, passing the usercontrol as an argument
Private Sub AddUC(myControl as UserControl)
gbControls.Controls.Clear()
gbControls.Controls.Add(myControl)
End Sub
But - when I try:
addUC(ucTemplates)
I get an error that ucTemplates is a type and cannot be used as an expression
I can get it working if I add the Dim uc As New before the addUC - but I'd rather have it so I only repeat one line, not 2
I know how to pass arguments between two dotnet applications! However I have hard time with this: I want to pass a command line argument. for example; test.exe is a console application (none dotnet) self terminating app. From cmd.exe if I type "test.exe -v" the cmd output text will display the test.exe version info. If I place the test.exe in the same path as my VB.net app.What I want to do is:
[Code]....
How, can i pass any command line arguments (Through Run Command)pass when my VB application execute and that's valuesare receive when form activate.
View 12 RepliesI have created my app to load with a argument
now, what I want to know if it's possible to pass the load argument even if app is loaded
like
app.exe -a = loads a special form on app.exe at load time
and if app.exe is already loaded to load same form if user requests it again from a shortcut or so
<p>I'm trying to use a function that takes a variable referring to various listboxes.</p><p>Something along the lines of:</p><p>Calling code:</p><p>...</p><p> Dim lstBox
as ListBox</p><p> if a=1 then lstBox = Me.ListBox1 else lstBox = Me.ListBox2</p><p> MyFunction(lstBox)</p><p>...</p><p></p><p>Called function:</p><p>
public sub MyFunction(lstCtrl as ListBox)</p><p></p><p>lstCtrl.Add()....</p><p></p>
In a threaded app in VB 2010, I can do this[code]...
View 6 RepliesI have several parameters consisting of separate System.Byte() arrays. What I need is the syntax for a function declaration where the parameter is an array of arrays - I do not want to delve into System.Collections, and it's my preference not to CType each array into an Object and then back into a Byte().
Problem I'm having here is that:
Public Function MyFunc(arrayparam() As System.Byte) As System.Byte()
accepts a single-dimensional Array of individual Bytes.
Then Public Function MyFunc(arrayparam() As System.Byte()) As System.Byte()
How can i pass the button click as an argument in a function.
View 6 RepliesI'm writting a class that needs the form handle but there is a way to use it without send it as argument in the class constructor or in a property?I know that the handler is not set until the form is completely loaded so that is another problem too.The basic idea is catch the form handle without pass it as argument and handle the wm messages.
View 2 RepliesI am having trouble to retreive a Image Raw Data into a Property, I included the related function and the Property.
The error I got is:.ImageRawData = CByte(dr.Item("ImageRawData"))
Error Message:Value of type 'Byte' cannot be converted to '1-dimensional array of Byte'
Public Function SelectOneImage() As ImagingData
Dim adapter As New DataAdapter
Dim ds As New DataSet
[code]....
Im a student doing an assignment, how do i pass the value from a sub procedure to a function procedure....i want to pass the value from decSubtotal to a function procedure named CalculateDiscount; check out my code--
[Code]...
I want to do something like the following in VB.NET, is it possible?
Function task(value as Object, toType as Type)
Return DirectCast(value, toType)
End Function
An exert from my config file looks liek this.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
[Code].....
EDIT: I am able to pass in the string perfectly when using Visual Studio 2005. But when using VS 2003 and a loiwer .net framework it will not let me, unless I hard code it in.
Could something be enabled/disabled on one of these instances of VS? Or could this just be an error with the older versions of .net? I think I am using 1.1??(will have to check) in 2003.
I have :
Dim con As New OleDbConnection(My.Resources.ConnectionString)
// Give exception = Format of the initialization string does not conform to specification starting at index 62.
When I substitute the actual value of the Resource, it give no exception :
Dim con As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:
awData.xlsx;Extended Properties=""Excel 12.0 XML;""")
The value of ConnectionString in Resources :
<data name="ConnectionString" xml:space="preserve">
<value>Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:
awData.xlsx;Extended Properties=""Excel 12.0 XML;""</value>
</data>
I don't understand why is this happening ?
I think this should have been replaced even before the compilation process..
Then why is it giving exception ?
what line i get this error " Argument 'Prompt' cannot be converted to type 'string' "
Try
If movieTxt.Text <> Nothing And ratingCmb.SelectedIndex <> 0 Then
For a = 0 To i
[Code]......
I am not the one who developed this tool, it's the previous programmer and they gave the project to me to update it however, when I try to run the application in my local computer I am getting this error: Argument not specified for parameter 'XLSFile' of 'Public Sub New(XMLFile As String, XLSFile As String)'.
The error points to the code below in bold letter:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Zym.ConnectionString = Web.Configuration.WebConfigurationManager.ConnectionStrings("cnworkload").ConnectionString
'Dim cn As System.Data.SqlClient.SqlConnection = New System.Data.SqlClient.SqlConnection(Zym.ConnectionString)
'Dim DA As New System.Data.SqlClient.SqlDataAdapter("SELECT * FROM SUMMARY_WORKLOAD", cn)
[code].....
I am trying to pass a list in string.format as the parameters to the SQL statement, but I get the following error: Index (zero based) must be greater than or equal to zero and less than the size of the argument list. I know that I can get it to work when I list out each individual list member as the arguments, but I am wondering if there is a shortcut so I can just use the list object as the only argument.
[Code]....
I am creating a process part of which returns a delimited string containing security group numbers, a few examples:
'3|5|6|9|7|4|8'
'5|6|299|27|4|8
'5'
I'm looking for help in fathoming an algorithm for splitting this string into the numbers so that I use each number as an argument within a separate query.Since there maybe only one number, or dozens I cannot work out the logic to make this happen correctly each time.
So strings are reference types right? My understanding is a reference to the string in the heap is passed even when you pass the string ByVal to a method.
String myTestValue = "NotModified";
TestMethod(myTestValue);
System.Diagnostics.Debug.Write(myTestValue); /* myTestValue = "NotModified" WTF? *[code].....
And what is going on under the hood? I would have bet my life that the value would have changed....
I am trying to load a movie from openfiledialog.filename, but i keep on getting an error. Here are the 2 things ive tried
1) AxShockwaveFlash1.LoadMovie(OpenFileDialog1.FileName)
2) Call AxShockwaveFlash1.LoadMovie(OpenFileDialog1.FileName)
Both of the codes get the same error that looks like this
Argument not specified for parameter 'url' of 'Public Overridable Sub LoadMovie(layer As Integer, url As String)And here is the URL it goes to when you click "Show Error Help" http:msdn.microsof...f0a(VS.85).aspx
I have a class and method exposed to a client asp.net app. The class looks like
<DataContract()> _
Public Class Class1
Private v_string As String
Private v_integer As Integer
[code]....
The method is declared as
<OperationContract()> _
Function GetStuff(ByVal bar As Class1) As String
In the client code I create an instance of Class1 and set the values for v_string and v_integer, but using Wireshark to look at the xml being sent to the server only a value for v_string is being sent as part of Class1. I'm guessing this is because it considers the value of v_integer to be null/not set. Here is an example of the client code.
Dim MyService as New Service1.ServiceClient
Dim test as New Service1.Class1
test.P_integer = 1
[code]....
how different types are passed/used since Integer is a intergral type and String is a class, but can't seem to work out what to do to fix the problem.
Argument matching parameter 'separator' narrows from 'String' to Ƈ-dimensional array of Char'. ERROR
View 7 RepliesI am trying to use string.format on a url to pass several values into the string. It's probably a simple error but I cannot get the following code to work. It doesn't even build the string.
Public Sub getStockData()
Dim client As New WebClient()
Dim url As String
[code]....
Dim PrinterIP as String
Dim Str as String
Dim objReg As New IWshRuntimeLibrary.WshShell
[Code]....
