Here is the code I am using.
Imports System.IO
Public Class FrmCap
'Create constant using attend in function of DLL file.
Const CAP As Short = &H400S
Const CAP_DRIVER_CONNECT As Integer = CAP + 10
[code].....
IF i want to use some API function than How can i know that this function required constant value?
View 4 RepliesI don't know if this is the right place to start, but I'm using Visual Basic 2010. I'm doing the IMY Solution. Basically I'm calculating the new hours for each pay. The inputBox function allow users to enter the raise percentage. The problem for raise percentage is how can I set the name constant correctly. It asks to create a named constant for the "Raise percentage: " message.
Here is the code
Option Explicit On
Option Strict On
Option Infer Off
Public Class frmMain
' class level variable to enter percentage
[Code] ......
pass an array to a function, like the code below shows
Private Sub SomeFunction(ByVal PassedArray() As String)
For i As Integer = 0 To PassedArray.Count - 1
Debug.WriteLine(PassedArray(i))
[code]....
But is there a way to pass a constant array to a function in VB .Net, for instance in PHP you could write
function SomeFunction($array)
{
for($i=0;$i<count($array);$i++)
{
[code]....
So to reiterate: Is there any way to pass a constant array directly to a function in VB .Net? Is there any benefit in doing so? I imagine a few bytes of memory could be spared.
PS.SomeFunction({"some", "array", "member"}) ' this obviously gives a syntax error
I want to create a constant of type date and assign it a list of 3 date. How can I assign a list of values to a constant. const dates as date=#1/1/2009#, #5/1/2009#.....
View 7 RepliesI have this function in my generator.[code]Despite the data type being passed into the constructor of the CodePrimitiveExpression object being a decimal, the code generated is an integer that gets implicitly converted and stored in a decimal variable. Is there any way to get it to generate with the "D" after the number as in: Public Const DollarAmountMaximumValue As Decimal = 100000D
View 1 RepliesI want to create an array of constant variables for my program. But from everything I read about arrays they are handled by a number. I want to be able to pass back a variable that will hold the name of the constant as well as the value. How would you go about do that.I want to when I type the variable to have the constant name show up as I am typing.
View 4 RepliesWhen building a class library which contains many classes, all classes uses a lot of common constants and functions, what is the best to do:
1- Declare these constants and functions as public in a module.
2- In each class declare constants and functions used by individual class as private.
The first choice is good for easy and fast implementation, but re-using a class in a different project will require importing the module to the other project.The second choice require a lot of copy/paste for code snippet but a class can be re-used in different project easily.
I've created txt file on vb. I need time function that every 30 minutes create file and filename will be date and time that file was created.
View 4 RepliesI want to pass an optional parameter to a function of type System.Drawing.Color. The problem I am having is that when I declare the function it says "Constant expression is required" but I have tried variations of the following, including integers, full qualified indentifiers, even old vbWhite constants to no avail.
[Code]...
Whats the most efficient way to read in moderately large data tables of constants? Im talking about maybe a few hundred items in a vector, or some 6 x 6 or 8 x 10 tables of numbers or strings, that kind of thing. (Im aware that they arent really stored in two dimensions.)In the old pre-Windows versions of Basic, wed use READ and DATA statements.In VB, we can read from an external file. I dont like to do this because something might happen to the file.
The resource file is another option. The setup is tricky, but once you get it its simple to maintain. It does involve reading strings and splitting them up to get numbers, which should be slow.Then theres the brute force method, where you just fill in the array in the source, you know,x() = {303, 279, 274, 268,} and so on for many continued lines. Some work to get everything in the right place, but one time only. I suppose that this makes the executable bigger.
I have a multi-lined string message that needs to be added to the Resources.resx file of the project. Currently I'm achieving this some thing like this MessageBox(My.Resources.MyMsg1 & vbNewLine & My.Resources.MyMsg2 ). This works.However I'd like to have the entire message in one resource string rather than adding two resources strings to the Resources.resx file.I've tried using' but no luck..message displays as "My message.Rest of the message".I've also tried manually adding a new line in the Resources.resx file. ( by doing "My message.<Shift+Enter>Rest of the message" But message is adding an additional space before the message in the second line.
View 8 RepliesI use the followoing code to import an xlsx file into an Access 2007 table. It works fine when I enter the exact file name.However, part of the file name is a date which will change every week.The file location does not change,just the date in the file name.[code]I've tried using a wildcard but I get a Run-time error 3011.Db engine could not find the object. Make sure the object exists.
View 1 RepliesI have create a CMS to upload all image to a folder using ed all my images to a folder using,
file.SaveAs(Server.MapPath("../images/") + advertID.ToString + "_" + i.ToString + fileExt)
Now, all images are saved and i forgot it create thumbnails. :(
I need to read all images at once and create thumbnails,
myimg = System.Drawing.Image.FromFile(imgFileName)
myimg = myimg.GetThumbnailImage(154, 94, Nothing, IntPtr.Zero)
myimg.Save(Server.MapPath("../Content/") + "Thumb_" + imgFileName, myimg.RawFormat)
I need this to function fast. I don't seems to know how to read these image names one by one.
I have a snip of coding I need to use 4 or 5 times on my windows form and rather than coping and pasting the same code how do I create a public function where I define the code once and then just call the function name?
View 17 Repliesshow me how to create a function from the following code?
[Code]...
Given the following, what is the best way to create this function (I think the function declaration should make clear the purpose of the function...)
[code]...
Can I create 2 users and they have different function??Database base using is MS Access.For example I have "staff" and "admin".Staff can insert,edit and delete data only.Admin can check the total sales of the day.Can I do that in VB.Net and can somebody give me some idea or example??
View 3 RepliesIf there's a way to have a function, that i can call from any code-behind on my website.
for example, i want to be on any page of my website, and be able to call this function[code]...
I remember that C# editor has a powerful option that when we are developing in code and type a new method (operation) name for a class, we can create its body by clicking on ALT+Shift+F10 and immediately, it will be created for it's own class.
what about in VB.NET 2008 editor?
how to create a print function ....
View 3 RepliesTheir is a alfanumeric value of any lenght (string) and i want to replace its all characters with 'X' except right four characters.[code]I have created a function but got stuck:[code]please tell me a better fuction to perform such a operation
View 4 RepliesI'm working on my graduation project and within it i need a function gives me random ID numbers and random dates since 2008,01,01 untill now .. I'm done with the ID numbers but i couldnt find a solution for the dates
View 5 Replieshow to create a function.I've seen recently that creating functions is pretty easy and useful, rather than using each time plenty of code . However, now I want to create a function with two variables , BUT in some case I'd like to able to omit the second one..[code](that is by supplying only the 1st variable in the argument) I'd like it to round the value to its integer value .
View 2 RepliesI have a MustInherit class with some MustOveride Methods in it. When i inherit form that class, I automatically get the MustOveride Methods or properties. My question is, I want to be able, to inherit from a class, get my MustOveride functions and methods, but then with some code already in it. I've once seen a .net class that did it, when I inherited from that class, I got the methods, with some comments in it.
View 4 RepliesI am attempting to create a generic function that the students in my introductory VB .NET course can use to search a single dimension array of a structure.[code]...
My question is: Is there a way to reference the individual structure fields in the array from inside the function? I was trying to make it generic so that the student could simply pass their array into the function - their structure may be named differently than mine and the field names may be different.
I suspect there are other ways to deal with this situation, but I was trying to keep it to just a simple single-dimension array of a structure. I don't think it is possible to do what I want, but I wondered what others thought.
I need to create a function that will verify a password.The function will be named IsValid.
View 1 RepliesI want to create a global function to use throughout my application. Let say it's about the connection to the database.My code that i plan to use in my global function is:
myConnection = New SqlConnection("...........")
myConnection.Open()
So that I can call it to use in every form throughout my application. This can make me easy to edit the connection later.how to define this global function and how to call this function in the form.
I want to create a license key function for my application.
For example I want in this key to contact 2 values: registered_to, expiry_date.
I want the licence key to be some sort of large string like: 2349ASDGKLASD87ASDGALSDK8ASD80972K.
I would need to create some way to create keys use some sort of algorhithm that decrypts the key and grabs the registered_to and expiry_date values. It also needs to check that the key string has some sort of check digit like credit cards have, so no-one can just type in a few random letters/numbers and it accepts.
I am trying to create a new thread using an anonymous function but I keep getting errors. Here is my code:
New Thread(Function()
// Do something here
End Function).Start
Here are the errors I get:
New - Syntax Error
End Function - 'End Function' must be preceded by a matching 'Function'.