can i save the returning value of eval function in a variable and use it wherever i want? i can call it just in <asp: .... tags. i can't use them in vb methods. is it possible?
View 1 RepliesI want to execute the code that is passed as a string to my function, the code will be passed at runtime. This is an example code that may be passed as a string to my function. p is a dataset, which is declared and has some values, this code is executed in a asp.net page
p.Tables(0).Rows(0)("disp_status") = "Approved by CEO";
p.Tables(0).Rows(0)("status") = "Approved";
Session("fnc") = "generate po";
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My brain may just be fried since it's the end of the semester, but my teacher kicked this back to fix and resubmit...she said that I am "returning the name of your function rather than your variable name".
Here is my code for all 3 forms.
code:
These are forms to calculate the cost of getting a cell phone package.
I should be able to pass an array of numbers, calculate average, lowest number, highest number, and standard deviation.the function returns an array containing the results. I dim public data
Public dataArray() As Double
Public DataIndex As Integer = 4
Private Function CalculateData(ByRef dtArray() As Double) As Double()
[code]....
I get an "error Number of indices is less than the number of dimensions of the indexed array" stats()If I add a dimension there like stats(Dataindex) I get an error "Value of type '1-dimensional array of Double' cannot be converted to 1-dimensional array of double".
I need to execute scripted text formulas. I believe that in VB 6 and/or VBA there was a method EVAL() that did the job, eg: [Code] As it seems, such a method does not exist in VB.NET. [url] The method works fine but due to its comprehensive layout its not that fast (as i need to call it myriad of times) Does anyone have a SIMPLE, FAST, straight forward math expression method? Or anyone knows how to use the old EVAL method in VB.NET?
View 10 RepliesThis is a quite strange problem. I have set a setting variable in Application settings with following data:
[Code]...
Yet when I reference it with this statement: MsgBox(My.MySettings.Default.county) It alerts 1. Despite being the first to be executed as soon as form loads.
is this safe (I know it works, but is it safe)? Is it returning a reference to a local variable, wich falls out of scope as soon as the function returns?
Public
Function myfunc() As String
Dim strXml As String
[code]....
returning a function value? I have a simple function that returns an integer. This function works fine when executed in SQL Developer but, when called from my apps, it always returns 2 regardless of anything. I have checked it over and over again, I cant seems to find where I am going wrong.
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what changes I need to make to the code so that when no value for intPosition is found the textbox txtRoomNumber remains blank? At the moment a value is being entered into the textbox when no value for intPosition is found.
Code:
Private Sub btnFindRoom_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnFindRoom.Click
Dim strRoomType As String
Dim intRoomNumber As Integer
[code].....
Just come across the following snippet:
Public Function Checked() As Boolean
Return applyChange 'this is a string!
End Function
Whats going on here? How can a function with return type Boolean actually return a string? I'm assuming theres some implicit conversion going on here, which I'd rather not have.
I am hopeing someone can help me here with a recursive function I have that is not returning either true or false as I would have espected it to. The function loops through a Active Directory group for its members and then calls itself if it encounters any groups within the membership in order to gets its members as well. I am trying to return either true or false based on if any errors were encountered but not haveing any luck at all. It appears to just hang and never return back to the primary calling sub that starts the recursive function. Below is my code I am using:
[Code]...
If an object is created inside a function and the function returns that type of oject how is the memory handled.
Example:
Public Function GetEmployee(employeeid as integer) as employee
Dim oEmployee as new employee
oEmployee.FirstName="Bob"
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Does the variable that receive the object still a pointer to the memory location that was used inside the function?What about when you do a oEmployee2=oEmployee.Is oEmployee2 just a pointer? And any changes to oEmployee will now affect the other. Just trying to understand it from a memory perspective and how that scope works?
Function returning different datatype
View 4 RepliesI have stored procedure which I will execute its result and pass it into a Dataset and return it but at the same time I have a Output parameter in my stored procedure which I also want to return, how can I return both the dataset and the integer output value with my function, or is there a more 'appropriate way' to handle such situation?[code]
View 5 RepliesI need to return an array but the array size will change from one call of the function to another so I need away to storing the returned array. The function is as below, and as you can see the returned array will be of different sizes:
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Im overiding getRolesForUser() I have 2 columns i return from the query IAdapter.GetRolesByUserName(userName) returns two columns (roleID, formID) How can I return them and access the two columns data? 2 dimensional array?
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Is it possible to return more than one value from a function? Like two integers, or an integer and a boolean, or any other data type combination. I understand I could use a sub and set these values in a variable but I was wondering if I could avoid declaring more variables by using a function.
View 28 Repliesis it possible for a VB.net function with a return type of integer to return null ?
View 3 RepliesFunction test(ByVal res As Integer) As Integer
res = 2
Return res
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I'm attempting to create a function that will get the User Accounts from the registry. I then need to loop through those users and commit specific actions on each one.Here's my function:
VB .NET
ublic Function UserAccounts() As String
Dim userskey As RegistryKey = Registry.LocalMachine.OpenSubKey("SOFTWAREMicrosoftWindows
[code].....
I've got this MustInherit class called ViewerElement, from which derive classes like ViewerLine, ViewerImage, etc.Then, in the main program I have a collection of different elements (Images, Lines, etc.). What I want to do is something like the following:
[Code]...
I'm getting desperate to implement this Clone method without getting errors. How should this be de done?
Ok simply my code doesnt want to output the correct number. I'm working on the project euler probems to expand my knowledge in VB.net and the current question I am working on is asking to work with triangle numbers. while researching I found that a triangle number can be calculated by using the formula:
[Code]....
How could I call a module or something else to return data to me after its ran. I don't want to make my form1 code all messy.
Public Function Test() As String
Return "Tes34t"
End Function
[code]....
i being ordered to change my function skill to returning value by using struct but not using pointer. may i know what is the pro and con between this 2?
View 1 RepliesI'm having trouble finding out how define this function so I can return the arrayRight now I am defining the returnobject as 'object' but I would like to do it properly.The Function goes something like this:
View 2 RepliesHow do i return a value from a function that i can copy to a queue?I imagine that value must also be a queue.
View 4 RepliesI'm making a class and I have a function in this class the is looking to see if a user account in enabled.
Public Function IsEnable(byval user as string) as boolean
'if user is enables
return true
else
return fulse
end function
What is it just does not find the user, how would I return an error that the person using the DLL could detect and catch?
I have a WCF Service Function that Returns a typed dataset. How can I return an error or message to the client?Public Function ReturnMyDS(Byval Identity as Integer) as dsMyDataSet Implements Iservice.ReturnMyDS
Try
Return = RetrievemyDataset
Catch ex as exception
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I am working on a project I would like to use a function in a class I created to return multiple values in order to populate a listbox. I wanted to use a do until loop to achieve this. I will just post a simplified example of what I am doing :
Public Function Listboxfiller
Dim astring As String = "This is a string"
Dim Counter as integer = 0
Do until Counter = 5
return astring
Counter += 1
Loop
Then on the form I would do something like :
lstListbox.Items.Add(Myclass.Listboxfiller)
What happens right now is that the listbox only gets the first value, when I ran through in debug mode I found the loop only runs once, even though it should go multiple times.
I'm trying to return changes to array data, including redimensioned arrays, from within a function call in code similar to:
fault = MyFunction(Array1, Array2)
Public Function MyFunction(ByVal inObj1 as UserStruture(), ByVal inObj2 and Integer(,)) as String
Dim myResult as String = "Failed"
Dim tmpStruct() as UserStructure = inObj1
[Code] .....
This works fine in updating the input array 'Array1', only when the redimensioning of tmpStruct is NOT performed. After redimensioning tmpStruct, the redimensioned array is passed back successfully into 'inObj1' within the function 'MyFunction', but is not passed out of the function call; i.e.
fault = MyFunction(Array1, Array2) -
The dimension of array 'Array1' out of the function call remains as it was before the function call. However, the data change; i.e.
tmpStruct(0).Nam = "New Name"
is passed successfully out of the function call.
Why the Redim operation is not passed back out of such function calls. I would like to return changes to arrays 'Array1' and 'Array2', plus a result string from the function call if I can. Furthermore, I would also like to change the dimension of the array within the function call, if required, and return the complete redimensioned array back out of the function call.