Pass Array To Function As Parameter?
Dec 7, 2010I would like to pass array to function as parameter. Here is an example for variable that is not array:
[Code]...
I would like to pass array to function as parameter. Here is an example for variable that is not array:
[Code]...
I want to make a GetAllContacts method which takes a sort parameter of type Func(Of Contact, TKey) which is the same type that the OrderBy method for an IEnumerable(Of Contact) takes.[code]"Too many arguments to extension method 'Public Function ElementAtOrDefault(index As Integer) As Contact' defined in 'System.Linq.Enumerable'." on the second parameter.
View 2 RepliesI have a statement:
dat.XoaNhanVien(Me.dtgcapnhatthongtin.CurrentRow.Cells(1).Value, message)
That is a function for deleting info. Now I want to create other function and get above function to parameter. I mean:
Public Function func(Byval func as " What type can be ?")
Can I pass a form as a parameter in a sub like public Sub GetData(Byval Frm as form) and access its controls?I have few forms (you can say: FrmAccounting, FrmEngineering, FrmIT) with almost the same controls in each of them (txtEmployeeID, txtEmployeeName, optMale, optFemale etc), where no two forms are open at same time, and each of those forms have a Button which opens a new Form (you can say FrmCollectData) now I want to fetch data in FrmCollectData depending on which form it was opened from.. like if user was on FrmEngineering and it clicks button to open FrmCollectData.. form collectData fetches data from FrmEngineering Controls and if user was on FrmAccounting and it opens FrmCollectData, form Collectdata fetches data from FrmAccounting..
earlier, in VB6.. In one of the Sub written in frmCollectData I checked which form is opened by setting flags in each of forms (frmEngineering, frmAccounting etc) and then I passed the same form in a sub which writes data in frmCollectData controls.. but am not able to do the same in VB.NET.
i am designing an application in which contents of an excel file are displayed in the ListBox. i have created a class which contains methods for doing this. Statement used for function call is:
oSheet = obj.displayColumns(oWB,
Me.lbColumnNames)
[Code].....
line where i am getting error is underlined. Is it possible to send controls as a parameter ?
After reading this post i realized that i cannot pass an anonymous type as a parameter to a function. So what other options do i have?
Perhaps, passing a Query.ToList as parameter would help, or am i re-inventing the wheel?
Update: I have the following query, which i would like to pass to a function:
Sub Test
Dim Query = (From c In DB Select New With { .ElementName = c.Name })
DoSomething(Query)
[Code].....
I have 2 functions, one is SaveData() and the other is SendEmail()
in the SaveData() the radio buttons that are selected are saved, and the SendMail() is called at the end.
in the SendMail() the radio buttons are "tested" and then one of two emails is sent out based on the radio choices.
The problem I am having is passing the parameters correctly. I have tried several different method but the parameters are not being sent to SendMail()[code]...
Basically, I have a gridview that is opened in a new window from the parent window. It has a bunch of records with a view button to view the details of each record (which stays in the same newly opened window). I have a calendar in the parent window that accepts a Date querystring parameter to set the current date on the calendar at page load. I'm just trying to refresh the calendar in the parent window to match the date of the label in the newly opened window.
All the code below is in the newly opened window. The .Net code-behind below refers to when that view button is clicked and everything is populated. At the end, I call the js to refresh the parent window and pass the value of the LabelScheduleDate as the querystring parameter. Now the label comes through as '03/25/2010' in the code-behind, but when I pass it to the js, it comes through as '0.00005970149253731343' in the end querystring. I'm not really sure what is making the value change, and I want to pass it as just text. Do I need to pass it as a string object? I tried but I don't think I was doing it right.
JavaScript Function
function RefreshParent(inputDate) {
window.opener.location = window.opener.location + "?Date=" + inputDate;
}
[Code]....
is it possible to pass an array as a parameter to a table adapter at design time in wizard in vb.net.
View 4 RepliesI have a query that can be summarised in SQL as follows;
Select
S.StockCode
From
StockToCheck As S
[Code]....
Where the S var is a list of strings. This gives the error 'S' is not declared and points to the S in the function call / join (GetPOSStock). So it does not seem possible to do this in Linq, can anyone confirm?
I have a sqlite table with following fields:
Langauge level hours
German 2 50
French 3 40
English 1 60
[code]....
I want to loop through the records based on language and other conditions and then pass the current selected record to a different function.So I have the following mixture of actual code and psudo code. I need help with converting the psudo code to actual code, please. I am finding it difficult to do so.
Here is what I have:
Private sub mainp()
Dim oslcConnection As New SQLite.SQLiteConnection
Dim oslcCommand As SQLite.SQLiteCommand
Dim langs() As String = {"German", "French", "English"}
[code]....
I have a Sub with an array of strings as parameter:
Private Sub des(ByVal array() As String)
Dim i As Integer
For i = 0 To UBound(array)
[code]....
When I call the function inside my main function , the value of str changes even if the array is passed to the function Byval
Dim str() As String
str = {"11111", "22222", "33333", "44444", "5555", "66666"}
des(str)
I tried making a copy of the array in the Sub, but it still changes in the main function
Private Sub des(ByVal array() As String)
Dim i As Integer
Dim array2() As String
[code]....
I read on a site that you cannot pass arrays ByVal ,is this true? If so , how should I proceed?
I have a Sub with an array of strings as parameter:
Private Sub des(ByVal array() As String)
Dim i As Integer
For i = 0 To UBound(array)
[code].....
I want to pass the entire array to the next function[code]...
View 3 Repliesi need to pass array value to a function , here are the details
function MyTest(byval a as integer, byval b() as string)
if b is nothing
msgbox("no array")
[Code]......
Is it possible to create a routine in VB.NET with a name-based parameter array? The WebMethod attribute built into the framework is used exactly this way: WebMethod(BufferResponse:=False)
Specifically, I'd like to use it in a class' constructor. I'd like something similar to this:
New MyObject(id:=10,buffer:=True)
I'm not even sure what the terminology is for this kind of parameter list, so I can't even find it when searching.
Im having a very difficult time trying to pass an vba array ive built from ms- access vba to a .net function.I don't have a com problem I can reference the library just fine from vba but and i can call a simple function from vba. however my problem exist when i attempt to try to pass an array to the vb.net function. vb.net code
View 3 RepliesI have a multidimensional array (not jagged array) that saves data from rows and columns of an excel spreadsheet. After it completes recording the data from Excel, I need to pass the array to another function.I understand how to pass a jagged array, but not a true multidimensional array.
Can someone point me in the right direction? I've done some searching on this site, and others, but most of the info only includes single dimension arrays or jagged arrays.
Im having a very difficult time trying to pass an vba array ive built from access vba to a .net function. I dont have a com problem I can reference the library just fine from vba but and i can call a simple function from vba. however my problem exist when i attempt to try to pass an array to the vb.net function. vb.net code
<ComClass(ComClass1.ClassId, ComClass1.InterfaceId, ComClass1.EventsId)> _
Public Class ComClass1
Public otag As String()
[code].....
I have a simple VB.Net Form that acts as an interface to a control library with a public API.
One of the API calls takes an Array of UIntegers ByRef:
Public Function Get_Values(source_id As Byte, first_value_address As Byte, number_of_values As Byte, ByRef valuesOut As UInteger()) As Integer
After the call, valuesOut will hold a list of values number_of_values long from source_id starting at first_value_address.
There is a hardware driven limitation that the max number of values returned is 15 regardless of requested length. I need to get 28 values into an array from my VB.Net code.
Is it possible to send only part of an array variable to the function similar to this C code?
uint[28] values;
Get_Values(0, 0, 15, values);//get first part
Get_Values(0, 15, 13, &values[15]); //get second part of data
I am porting Excel VBA to VB.NET. I have a function that takes a selection of data, and it may be one dimensional or two. VBA code is quite fluid about using a variable as either a 1-D or 2-D array, but VB.NET marks it as an error.
Here is the reduced code:
Public Function Stat(ByVal Data As Range) As Object
Dim Y() As Object
[code]....
I 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()
I have a structure to hold a student name, an array to hold 5 test scores, and an average score. I have created an a array of structures for 6 students. User input is setup through text boxes. I want to calculate the average for each student. I have made a function to do this. What I am having trouble with is how to pass the array of test scores to the function.
Here is what I have so far:
CODE********
Public Const intMAX_STUDENTS As Integer = 6
Public Const intMAX_NUMTESTS As Integer = 5
Public student(intMAX_STUDENTS - 1) As StudentData
[Code].....
In VB6 I used some pattern of programming..I passed the picturebox as parameter to some procedure in some class and inside this procedure paint all needed graphics using this class methods.Now I want upgrade my application to vb.netBut all samples for line drawing show me how to draw inside paint event.[code]
View 2 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]...
I want to have a "template" function that can receive different parameter and a type parameter, like:[code]But Vb told me that tupeList is not defined... is there a way I can do that?
View 2 RepliesI want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
I need to execute a stored function in oracle or sql through vb.net. I created a command object. Depending on the database type(oracle or SQL) i am preparing the Command text as Select functionName(?,?,?,?,?,?,?,?) from dual; (For Oracle) Adding the parameter values of the function. Now performing the ExecuteScalar which is not working saying invalid parameter. This works with ODBC connection string. But ODBC doesn't with 64bit. My Requirement: Code should execute a user defined stored procedure by taking the values at runtime.
View 1 RepliesI am currently still learning to use VB.Net feature. Currently I am trying to execute a .exe file where there will be passing parameters to run the script. E.g. this how it works on the command prompt line:
C:Documents and Settingsproject1>textfile.exe file1.txt file2.txt file3.txt file4.txt
Above line will be able to run the textfile.exe script.
I am using VB .Net to create a User Interface where user will be able to use the 'OPEN CLICK' button to choose the files (which will display on a textbox) and click on a 'START' button to run the program. I managed to find a code - process.start() feature, however it cant seem to work..
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim MyProg As String
Dim executable As String
executable = "C:Documents and Settingsproject1 extfile.exe"
MyProg = TextBox1.Text
Process.Start(x, MyProg)
I have various shape objects, and I want each unique shape to implement a saveToDB method that simply calls a DB object that implements a Save method with an object as its input paramter. This DB.Save method will be a long case function that implements the proper SQL commands based on the type of attributes possessed by the input parameter object.how do I implement the SaveToDB method in my Shape class? Is it something like this:
Function Shape.SaveToDB
DB.Save(Me)
End Function
The goal here is to let each shape save itself without it knowing anything about database operations; I want to isolate db-specific information in my intermediary DB object, so the DB object will have to figure out what type of object wants to be saved into the SQL database and then execute whatever SQL instructions are needed. And then if I override the SaveToDB method in each shape subclass, I can avoid the case statement entirely, replacing it with a series of unique methods such as db.SaveCircle (ob), db.SaveSquare (ob), etc., sincle the caller already knows what it is.