Dynamic Array For User-defined Type In .NET?
Apr 2, 2009
i'm using VB.net 2003 application program. i'm trying to convert a VB6 program to VB.NET. The VB6 code i'm trying to convert is shown below.declared g_Share() array in module and trying to add values to it inside form. VB6 (Code inside Module)'Global type array to hold printer info.
Public Type OShare
PrinterName As String
BackupName As String
CurrId as Integer
End Type
'Declare dynamic array for printer info as user-defined type declared above.
Public g_Share() As OShare
VB6 (Code inside Form)
Public Sub LoadPrinters()
[code]....
when pgm runs and when it reach ".PrinterName = myReader(0)" line, it crashes. Object reference not set to an instance of an object. using immediate window i can see the myReader(0) value. how can i create dynamic array for user-defined type in vb.net?
View 2 Replies
ADVERTISEMENT
Apr 2, 2009
i'm using VB.net 2003 application program. i'm trying to convert a VB6 program to VB.NET. The VB6 code i'm trying to convert is shown below. declared g_Share() array in module and trying to add values to it inside form.
[Code]...
View 1 Replies
Apr 2, 2009
i'm using VB.net 2003 application program. i'm trying to convert a VB6 program to VB.NET. The VB6 code i'm trying to convert is shown below.
declared g_Share() array in module and trying to add values to it inside form.
VB6 (Code inside Module)
'Global type array to hold printer info.
Public Type OShare
[Code]....
how can i create dynamic array for user-defined type in vb.net?
View 1 Replies
Mar 11, 2011
I have this code working. It sets the Visible property of controlToSecure to False. [Code] However I would like to get rid of hardcoding types of properties. In this case i'm hardcoding Boolean. Instead I would like to define the property type dynamically. I tried it like below but I get an error on line 2 "Type property Type is not defined". I just defined that type on the line before though? Does anyone know why this doesn't work and how i could get it to work? [Code]
View 3 Replies
Dec 29, 2011
I am trying to redirect command line output to a list box in a vba macro, and I've found some code that I think might point me in the right direction, but I keep on getting the same error. When I use this code [code]It gives me the error in the title and highlights the first declaration line.What does it take to define a new "process".
View 1 Replies
Dec 25, 2010
I have a small problem, classes and threading with classes. The problem I have is a dynamic array variable defined in class. In the code below, when error pauses the code, I can see the data in the correct form but I can't write rigth code that writes the data to richtextbox.
Public Class Form1
Public k() As Integer
Private Class zaratma
[CODE]....
View 4 Replies
Jul 22, 2010
Following is my code. Private Structure DISPLAY_ELEMENT_TYPE
[Code]...
Actually this is vb6 to .net converted code. I m getting compile error at following line
temp = Lset(DispElem(i)) bcz Lset is not supported in .Net Lset accept string data type for first parameter and interger for second.If you know any alternet solution or if you have any source code for Explicit convert UDT to string type and vice versa.
View 4 Replies
Jun 21, 2010
[Code]...
a messagebox appear that show user-defined type not defined i had try another code but it still same error.. i'm using vb6
View 1 Replies
Jun 11, 2009
i want to know how to type cast to user defined type in vb.net.I have a mark object which contains student id , subject name,subject id and mark. I have to read the subject id from a combo box and read corresponding mark value from it to a text box.
View 2 Replies
Apr 28, 2007
I'm converting a user generated list box to an array and then generating a user defined number of random strings and placing it in a textbox.The code I have works fine as it will generate the number of random strings the user wants, except sometimes a line is blank at the top of the list but is counted as a string.
View 4 Replies
Apr 16, 2012
I apologize in advance about asking a newbie question. I am a less-than-intermediate programmer who has done most of his work in VB6, and now trying to wrap my mind around the new concepts of the NET languages.In VB 2010, I have a Structure called "Direction", with one data member -- an integer named "Value". It's supposed to represent a value of degrees from 0 to 359.
Public Structure Direction
Private d As Integer
[code].....
View 9 Replies
Mar 22, 2009
I've declared a class called WindowIDNamePair in which I associate the hwnd of a window with the window's text. (See end of this post)
I've declared an array of type WindowIDNamePair as follows:
Private windowList(0 To 500) As WindowIDNamePair To test the array and class I'm doing the following:
windowList(0) = New WindowIDNamePair(1, "a")
windowList(1) = New WindowIDNamePair(2, "b")
windowList(2) = New WindowIDNamePair(3, "c")
[Code]....
View 5 Replies
Nov 19, 2008
I have a structure like this:
Code:
Public Structure Interval
Public temp As Double
[Code].....
'I want to be able to add to the array like an ArrayList though... 'after assigning values, like this:
interval(0).add
View 1 Replies
Aug 11, 2011
I am writing a scripting language which used .net for execution. Now I have written a function which accepts an object and return a set of numeric values. I wanted user to pass any numeric array (e.g. integer,single,double,long) and I could return values in that format. I mean user can retrieve value in any numeric array type rather than specifying an array type. E.g.
[Code]...
View 15 Replies
Feb 9, 2010
I am in the process of migrating from VB6 to VB 2008. In a pixel grid system I have thousands of cells with about 15 properties each. In VB6 I employed the user-defined datatype "udtCell()" as my array structure. Is this still a good approach - or should I perhaps make Cell a class?
View 2 Replies
Sep 25, 2009
I have a User defined table type(UDTT) in Sql 2008 I am writing VB Code to send data to Stored procedure that uses it as a parameter I have found that the datatable i build in VB has have columns in same order as udtt when passing it to SQl from VB Currently I have this roughly
In SQL Server
Create type table my_table
Field1 varchar(10)
Field2 varchar(10)
[Code]....
View 2 Replies
Jun 16, 2011
I am very new to programming so sorry for the simple question, but I am at a lose. What the program needs to do is take a user defined starting and ending range, and then build a table based on that range. Inside the table each record will need to have two check boxes.
So for example the user enters in a starting of ABC01 and ending ABC03 and clicks the button the table is populated like this;
[Code]...
View 2 Replies
Jul 18, 2011
I was knowing that For Each loop can only be applied to those classes that implement IEnumerable interface . But recently i accidentally wrote a code that is using For Each on my class's objects collection and my that class is not implementing IEnumerable interface .Below is the sample code that i am testing on :
Sub Main()
Dim personList() As Person = New Person(2) {}
personList(0) = New Person("s1", "s2")
[code].....
View 4 Replies
Jan 22, 2012
how to convert a VB6 "User Defined Type" to a VB.Net Structure. I'm lost on the internal array declaration and fixed length strings.Here are my VB6 Type Declarations.
In BTSegment how do I declare fixed length strings in Structure?
in BTStatus how do I declare Seg(MAXSEGMENTS) As BTSegment
'Index Segment Structure
[code]....
View 5 Replies
May 8, 2010
i am trying to read an existing excel 2007 file from vb.net i used a form with single button and i written code in button click event code is :[code...]
View 1 Replies
Mar 6, 2011
Okay, I will be using Username &'Type' through out my project to verify certain things. On workbook open, I grab the username. Now I want to put the username list and type into a public array. The username list has a range name of UID and the type has a range name of UIDType. The combined list has a range name UIDCo. Which will be more 'resource' friendly? To load UID into one array and UIDType in another or to load the UIDCo into one all encompassing array? I will very rarely use either list alone, it will almost always be a combination of UID and Type verification.
2nd question is, I've only really used 1 dimensional array's before, any help on where I can research more about multi-dimensional arrays. I can pretty much figure out the what it does and how to use them. I'd be more interested in the actual syntax or coding samples.
View 5 Replies
Aug 19, 2010
This is my
[Code]...
This is my error: Operator '=' is not defined for type 'FileInfo' and type 'Boolean'.
View 3 Replies
Jun 10, 2009
Public Pixels(0 To 95, 0 To 127) As Variant Red = Pixels(X, Y) And &HFF i get this code from VB6, and when i transfer to VB05 i got problem said " Operator 'And' is not defined for type 'Color' and type 'Integer'. " i sent to VS2005
Public Pixels(0 To 95, 0 To 127) As Object
Dim red As Object
Red = Pixels(X, Y) And &HFF
View 6 Replies
Jul 20, 2010
The following code at run time gives the error - Opearator '=' is not defined for type DBNull and type 'Boolean'.
The reason is the data at the table is set as NULL value.. How can I change it to accomodate the error.
Dim irowNo As Integer
For irowNo = 0 To DgvReturns.Rows.Count - 1
If DgvReturns.Rows(irowNo).Cells(2).Value = True Or
[Code]......
View 5 Replies
Apr 16, 2009
In my application when i click the button i'm getting this" Operator '=' is not defined for type 'Char' and type 'Boolean'." But when i test it locally there is no problem at all!
View 2 Replies
Feb 14, 2012
In trying to add a bit of usage variety to a generic class I'm working on, I ran into this issue with trying to cast an object into an interface instance where the interface is defined inside the generic class.
[Code]...
View 1 Replies
Sep 13, 2011
I feel quite silly asking this, but I couldn't find a definite answer anywhere. in vb.net, how are the array elements defined (if they are defined) for, for example:
Dim myarray(5) as int
does, at this point in time, myarray(3) for example have a defined value? If so, what is it?
View 1 Replies
Oct 18, 2009
This is the code I am having trouble with.
CultureInfo As Any (this is where it said: Type 'Any' is not defined)
Dim string1 As String = "strWordGuessed"
Dim string2 As String = "StrWordToGuess"
[code].....
View 2 Replies
Jan 12, 2009
when a user inputs a value into a text box, i am searching that value in my dataset.although the number that i entered is in my dataset, i am getting this excemption.
View 3 Replies
Jun 23, 2010
To correct this error I use the given help that microsoft provides below and i am still getting the error messages can anyone assist me with the source codes if i send some code snippets?Check that the type definition and its reference both use the same spelling.
Check that the type definition is accessible to the reference. For example, if the type is in another module and has been declared Private, move the type definition to the referencing module or declare it Public.If the type is defined, but the object library or type library in which it is defined is not registered in Visual Basic, click Add Reference on the Project menu, and then select the appropriate object library or type library.
View 2 Replies
