Function "SetUserName" is used to download the specified user's name data to the appointed terminal.
[Format]
BOOL SetUserName(
long DeviceKind,
long dwMachineNumber,
long dwEnrollNumber,
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in the line dim n1,n2 as integer...is n1 actually being defined as a variant ?
View 2 RepliesI'm having trouble using a COM based DLL in that one of the parameters is of type VARIANT.
The C++ definition of the structure is as follows:
typedef struct CSimData
{
DWORD dwSigId;
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From debugging i've been able to determine that the COM server is getting no value in vValue. Is there some sort of Marshaling that needs to be done to be able to set that VARIANT up on my side so that it can use it?
I have been tasked to convert out VB6 program to VB.NET. In my research online everyone seems to say I need to go through my code and get rid of any Variants I have. I have had pretty good luck so far, but I am having an issue in replacing this one.
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I am still pretty new to VB (either 6 or .net) and I am having a hard time finding an alternative for this. Will the convert tool in VB.net handle this just fine? Or do I need to change this? If I do, is there a better alternative for this? Forgive my noobness.
I am creating a wrapper class in .NET (VB.NET as it happens but is equally related to C#) that is exposed to COM and one of the properties I am trying to wrap is a Variant. I thought I would just be able to use an Object, but I get an error: Public Property FieldValue([vFieldID As Object = -1]) As Object cannot be exposed to COM as a property 'Let'. You will not be able to assign non-object values (such as numbers or strings) to this property from Visual Basic 6.0 using a 'Let' statement.*
My property declaration looks like this:
Public Property FieldValue(Optional ByVal vFieldID As Object = -1) As Object
Get
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I want to extract a field (field name is variant, i.e. depend on what the user's choice) from a table using sql statement. How do I do that? Do I have to declare some variables?
View 4 RepliesI have a simple problem and I believe that the solution is with module using but I could not resolve it yet. Here is the scene:In Form1 I have a variant that gets its value from the selections of a listbox. The code is:OPtext) in Form2 because this selection from Listbox (in Form 1) should also trigger some events in Form 2. I tried to use a module and declare the variant using Public. I did this and I now can use the variant in Form 2. But the value selected in Form1 does not come to Form 2.
View 7 RepliesIn VB6 I could assign an Excel range directly to a variant array dim vArr as variant vArr = xlSheet.range("A2:A10").value and then work with vArr to pull out the values I needed. This doesn't work in VB 2010. Is there a replacement procedure to allow me to read in a range (perhaps large) all at once and then process the data without needing Excel?
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The following code works fine in VBA Goal of the code is to find (select) all cells in an Excel worksheet where the backgrounf cell color is Yellow (6) or Rose (38)
Sub SelectColorsViaArray()
Dim e As Variant
Dim r As Range
Dim x As Range
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3) With the above, I still do not understand how to integrate the Variant and Array differences from VB6 to VB.Net. I know what to do with all other like: Application.FindFormat.Interior.ColorIndex ... etc.
I have some ActiveX that was written for VB6. They all seem to return Variant types. Ex.
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In this case the GetPosition control is returning a robot axis position. It looks to me like the values coming back from the function is not getting converted to object type properly.
Now I'm creating at app in VB (Microsoft's, Visual Basic 2010) which will be in full screen but I want to know if I can put all my content in the centre of the screen. At the moment it's at the far top, left of the screen. When the screen size varies I want it will stay in the middle for all shapes and sizes. Like :
<div style="margin: 0 auto; width: 500px;"></div>
But this is for web pages using HTML and CSS.
I have two tables:
table1
case_no flow result
tc_1 001 pass
tc_1 002 pass
tc_1 003 pass
tc_2 001 pass
tc_2 002 fail
tc_2 003 pass
table2"
case_no result
tc_1 pass
tc_2 fail
Table2 should be updates from table based on the results... If all results is PASS then the table2 should be updated as pass... if any result is FAIL then the entire case_no should be updates a s fail..
This code was working consistently, but now...This code works on the first pass.Then second pass it just hangs on Code:Dim tcpClient As TcpClient = tcpListener.AcceptTcpClient() for about 2 minutesThen the code will fork for another pass, then fail.....
Code:Imports SystemImports System.TextImports System.Collections.GenericImports System.XmlImports System.Xml.LinqImports System.Net.Sockets
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Just started VB programming this week and have found a wealth of information about what I'm trying to do. Problem is, some of it is more complete than others.Here's what I'm trying to do:In Form1 (my main form), I want to instantiate a class that contains a couple of properties (speed setpoint and position setpoint). When I click a button, I want to pass this data to Form2 and populate two textboxes on Form2 with the properties of this object. I want to manipulate the property values on Form2 and click an OK button which closes the dialog and returns the manipulated data, updating the property values of the object. Here's the algorithm I'm following:1) On Form1, instantiate the class2) On Form1's "Pass Data" button click event handler, instantiate a Form2 object and invoke the ShowDialog method, passing the object as a parameter.
3) On Form2, overload the ShowDialog method to accept the object as a parameter and modify the method so that it returns the manipulated class data.4) On Form2, in the ShowDialog method, populate the textboxes with the class data that was passed in.Here's where I get stuck. If I press the OK button on Form2 (DialogResult.OK), it returns me to Form1, but what hook do I have in Form1 to receive the manipulated class data that the ShowDialog method is returning?Here's an example of what I'm thinking about:
Code:
Public Class Form1
Dim clsController1 As New MotionController
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I'm sure it's probably a very elementary question, but every explanation I've found seems to be incomplete.
I have some VB6 code that can't be modified easily that looks like this:
Dim cCount as Long
Dim rCount as Long
Dim result()
Set mx = CreateObject("Component.Class")
Dim rtn = mx.GetList(rCount,cCount,result)
The method it calls is currently a VB6 component that we've migrated to .NET with one issue. We're not sure what type the result() is looking for since it's a variant type. We've tried object, object[], object[][], string, string[], etc, none of which have worked.
Here's an example:
public bool GetList(ref long rCount, ref long cCount, ref object result)
{
...
}
I've even tried setting the third param to VariantWrapper since it will add ByRef as necessary:
public bool GetList(ref long rCount, ref long cCount, VariantWrapper result)
{
...
}
what I can set the incoming result to be so that I don't have an unhandled exception?I've created a test Interface (for COM), test Class, and test VB6 app to ensure it was an issue with the Variant. So, it's defined like so:
.NET Interface:
[DispId(1)]
[ComVisible(true)]
string Test(ref object[] value);
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I am looking for some input. I am helping with a web application that is fairly large. We have some logic factored out into classes, not a true business logic layer (yet ). The classes are setup to pull values directly from the QueryString or Session variables and I'm not sure that that mehtod is proper or even a
The reason I would like some input is, there may be a chance to rewrite or at least refactor the code.
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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--
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But in my application i need to pass the ID of my Client (company) to fecth it's businessName. So first i've written a storedprocedure to return it's ClientID searched by BusinessName, then i pass the ClientID to fetch all the other details of the client such has his contatcs...etc....
Therefore currently i use two stored procedures to one i pass the businessName then i will return it;s ClientID then to the other i pass the ClientID then it will return everything about the client (beucase client was indexed on clientID)
Is it possible to write only one stored procedure to perform the two operations..
PS - I use SQL server 2K5
Is it possible to have
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i have a javascript function in aspx file now i use vb as back in asp.net now i use postback from javascript like this
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now i dont get that "1" in my vb code i want to get it because i want check when i get page_load event by post back by this javascript
Erm i am new to this. How do i pass the value the user enters into a text box to the vb code behind?
<input type="text" runat="server" id="amount" name="amount" size="15" />
The value from the text box is not being passed to the class.[code]...
View 13 RepliesThis code copose from Class including tow sub first sub to insert data in DB Ms access- second code: to check if there is same number of Tel if there is not same number will excute the first code insert, if there is same number of Tel it will show messagebox the problem that I faced is by how to pass object(InsertData) from CheckN sub. It showed me error : Expression is not a method
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If I want to use a FolderItem verb like 'Copy to folder', then I have to somehow supply the name of the folder to which I want the object copied. How is this done. I dont understand how msdn can be so minimal on examples.
View 5 RepliesI want get a string from excel cell by vba and pass that string to vb.net function
View 1 RepliesSuppose I save a file as *.tar (this extension is my own making) using a vb6 program.Now when the user clicks this file, the window asks 'with what program to open this file' and he/she selects the exe of my program. Now I want to pass the name of file clicked to my program. Like when we click *.xls file, the exe of Excel program knows which file has been opened or clicked. Is there a way?
View 2 RepliesCan any one please tell me why the following code is not giving me the expected result Application type as Class library Form with 1 text box and 2 button
form1.vb
Public Class Form1
Private Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cl As New WindowApp.Class1
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ok to start i know very little about VB6 but i am very good in true basic lol (stupid school teaching the wrong language -_-) anyway im just asking you to make the answer as clear as possible because i don't know very much. heres the problem . ok in the above example i have a button that (for my example) can be used to build a house (lol) i then have a variable in the button sub called money which will have 150 subtracted from it when the button is clicked my problem is it say variable not defined when using this button ... i have declared the variable in a module and in form load along with my other 50 or so variables. my question is how do i pass the variable into this sub and then send the new value back into form load so it can be sent into another sub for more calculations.
View 14 RepliesI currently have the following funcion:
Public Sub GetUserAmount(ByVal ConnectionString As String)
Dim command1Text As String = "SELECT Wager FROM Donations1 WHERE DonationId = (SELECTCOUNT (BidCountHistory) FROM BidCountHistory)"
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I have the following sub which works for the type "Button". I would like to make it general by having a parameter that is assigned a type rather than "Button" being hard wired. Can this be done? How do you pass a type? I tried the parameter "ByVal t as Type" but the compiler complained when I used t as a type and I also tried inserting (Of T)but the compiler complained about CType(control,T).
how add type as an input to this sub?
Public Shared Sub Example(ctrl As Control, items As ToolStripItemCollection)
For Each control As Control In ctrl.Controls
If TypeOf control Is Button Then
Dim butt As Button = CType(control, Button)
determine which component had been clicked?