Initiate Array On Existing Object?
Aug 30, 2011
I have just started to work with Webservices and the vendor have provided me with a wsdl reference file.I have added the file to my project.The examples the vendor provide is written in C# (which I wish I was programming in) but I'm a old school VB programmer so I'm trying to map it over. In the examples they seem to initate a new array in an existing object but I can't figure out how to do this in VB?The example shows the following (C#)
Security_Authenticate sec_auth = new Security_Authenticate();
sec_auth.dutyCode = new Security_AuthenticateDutyCode();
sec_auth.dutyCode.dutyCodeDetails = new Security_AuthenticateDutyCodeDutyCodeDetails();
[code]....
View 10 Replies
ADVERTISEMENT
Jul 14, 2010
I have a group of objects I set values in and then place in a hashtable with the keys stored in an array. When something happens and I want to replace the original object stored in the hashtable with a newer version I have no idea what to do. For example:
arContractsMissingData(arContractsMissingData.Length - 1) = ActiveContract.Item("caContractID").ToString
htMissingData.Add(arContractsMissingData(arContractsMissingData.Length - 1), objMissingData)
This adds the original object to the hashtable but after some conditional check a new object with the same fields but different values is created and needs to replace the original object. I tried setting the values from the new object to the old object like this:
htMissingData.Item(ActiveContract.Item("caContractID").ToString).ContractNoticeInitialDate = objMissingData.ContractNoticeInitialDate
This generates an error that option strict on disallows late binding.
Can I just remove the old object and add the replacement object?
View 2 Replies
Feb 1, 2011
As per this illustration, I'm trying to increase the size of an existing array from 111 to 114 to be consistent with existing code. I need topreserve the existing values and add 3 new items to the end of the existing array of booleans,
View 3 Replies
Mar 24, 2010
Is it somehow possible to use the 'With' keyword on an existing object?I would like to do the following using LINQ to objects and can't seem to find a way:
From m as Product in Me _
Select m With {.Match = m.Name.IndexOf(query)} _
Where m.Name.IndexOf(query) > 0
[code]....
View 4 Replies
Jan 3, 2010
I've got this little problem with my listview Control, I decided I wanted to hide some of my data in each listview item so I inherited from the Listview "DiaryItem".The problem is I'm in this cross threading situation and I cannot seem to overwite one Listviewitem object with another, I'm sure its some sort of refrencing problem as when it goes out of scope(function close) the original data is still present, I know I could add the new data by adding a new ListviewItem and deleting the old one but they must be away around this.
Because of cross threading I could not use Items even though I'm checkign for it. Code:
[Code]...
View 7 Replies
Apr 13, 2009
I have a windows form that has 18 checkboxes named CheckBox1 -> CheckBox18. Also i have a text file that i want to use to store whether the checkbox was checked from a previous session.[code]Now say 002's seventh character = 1 i want to to be able to change CheckBox2.checked to true without having to put in a long if..elseif... statement - so i need to somehow get the checkbox name to change dependant on the the first three characters.[code]
View 14 Replies
Mar 2, 2009
I have an associative arry with key,value pair. I want to set the value of an existing key to some variable that is ok. I can even check whether the value is null or not. But how to check whether the key itself exists or not?
View 3 Replies
Dec 8, 2010
Okay so maybe i'm looking at this problem the wrong way and if I am please tell me but here goes.
View 3 Replies
Jul 29, 2011
I'm currently designing a mock-up of a customer booking system for a cinema using Framework 4.0. All data at present will be stored in an array and as it's a mock-up, it will remain their (customer name, ticket price etc...) as no requirement to permanently store the data at this time.[code]...
View 1 Replies
May 24, 2012
This code updates the fiscal year automatically.[code]...
View 1 Replies
May 1, 2009
how to write the code for my project.I am to base my new project on an existing one(existing one has code that works 100%)and create an Array of a structure that bascially holds the information from a summary form AND the totals from an AddToOrder_Click event. If you are still with me)... I cant figure out what the code is for my structure and Array so that I STILL have a Summary Form but I have an array that shows when I click my PrintPreview. So an Array is basically a "space" that holds information, like my summary form except it doesnt show until I click PrintPreview right?
If I just wanted to show the table then my code belongs in the PrintDocument1_PrintPage to show the array but the actual structure code belongs in the Click_Event of my AddToOrder? Please Please understand I AM NOT asking for anyone to write my code, basically I am asking for some clarification on what exactly creating an array from a structure is and therefore determing where the structure is to be placed in my code..
View 6 Replies
Aug 6, 2010
Here is the structure that I have:
Friend Class StandardFormatFile
Friend fileType As String
Friend numberOfSeries As Integer
[code].....
View 3 Replies
Jun 22, 2010
I am currently porting (well really totally re-writing) a project to run on WM6 devices. I need to initiate a GPRS data connection (or any internet data connection really, shouldn't matter if its GSM or CDMA) before I can get the data I need (actually sync. a database over the cell network - Sybase via Mobilink) because right now its basically saying I have no network connection when I make the call to sync the db.
If I open Internet Explorer on the device, it initiates the data connection, and I can then go back into my program and get the data no problem. This isn't an acceptable solution however.
How can I initiate the internet data connection?
View 3 Replies
Jan 6, 2011
I'm using a central startup routine to initiate several TCP connections, start up a background thread that does some monitoring, and instantiate a group of objects that track information throughout the lifetime of a networking session.
There are periodically server-side problems with the protocol I'm working with, at which point the whole mess has to be torn down and set back up, so at the front end of the startup routine I'm disposing of instantiated tracking objects, killing the monitoring thread, and disconnect/close the existing sockets (if they're already set up). At that point the sockets may be in the middle of an asynchronous send or receive operation, which is causing system exceptions when the socket is torn down and then the asynchronous delegate gets called and EndSend or EndReceive thinks there isn't an object there anymore.
I had assumed .Disconnect and .Close would take care of these async processes, and I'm a little lost. Is there some one-shot method I can use to abort those async operations before I tear the sockets down to re-instantiate them?It never hurts to try. In a worst case scenario, you'll learn from it.
View 10 Replies
Jun 21, 2012
I have an array of type Double() (1 x n) that I am trying to quickly plot on a graph I've already set up. The only thing I want/need to do is take my array and store it as data points (y-axis values) in the series I already have. What's the best way to do this? Also, will the data points that are plotted change as my array changes, and if not, how would I replot those new points and get rid of the old points?
View 1 Replies
Jul 27, 2011
I have an asp.net project that's compiled on a server. On that same server I have a windows service that's running methods referenced from the asp.net .dll. Everything works fine except for when the httpcontext.current object needs to be accessed. I'm fairly certain that the cause of the .current being null is that it's referencing the shared library without an actual instance of the site running. In a previous version of the service I was able to find a workaround in asp.net by not using the context, however that is now a last resort as much of the architecture of the site has changed. Is there anyway to create an instance of the site and simulate a current httpcontext for the purposes of the service?
View 2 Replies
Jun 14, 2011
I didn't think it fair to post a comment on Fredrik Mörk's answer in this 2 year old post, so I thought I'd just ask it as a new question instead..NB: This is not a critiscm of the answer in any way, I'm simply trying to understand this all before delving into memory management / the marshal class.
In that answer, the function GetByteArray allocates memory to each object within the given array, within a loop.Would the GetByteArray function on the aforementioned post have benefited at all from allocating memory for the total size of the provided array:
Dim arrayBufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf(<arrayElement>) * <array>.Count)
I just wonder if allocating the memory, as shown in the answer, causes any kind of fragmentation? Assuming there may be fragmentation, would there be much of an impact to be concerned with? Would allocating the memory in the way I've shown force you to call IntPtr.ToInt## to obtain pointer offsets from the overall allocation pointer, and therefore force you to check the underlying architecture to ensure the correct method is used*1 or is there a better way? (ToInt32/ToInt64 depending on x86/64?)
*1 I read elsewhere that calling the wrong IntPtr.ToInt## will cause overflow exceptions. What I mean by that statement is would I use:
Dim anOffsetPtr As New IntPtr(arrayBufferPtr.ToInt## + (loopIndex * <arrayElementSize>))
I've read through a few articles on the VB.Net Marshal class and memory allocation; listed below, but if you know fo any other good articles I'm all ears![URL]..
View 1 Replies
Jun 23, 2011
I am writing an app to be a single button failover of a set of mirrored SQL servers. The app has to handle several other functions (enable/disable and start/stop of services, writing to local registry, copying files from server A to server B, initiating stored procedures, etc.)I have a collection of labels that indicate the status of 4 services on 2 servers, I wrote a function to check the services when passed the machine name, and the service name. Originally I just called the function 8 times (4 services, 2 machines) and populated the labels 'manually'. I have all of this within a timer so that the service status is refreshed every couple seconds. Id like to clean up the code to a single for/next loop that operates on 2 arrays (an array of service names, and an array of labels) such as:
'**Fetch_Status is the function that gets service status, it accepts 2 strings, machine name
'**and service name and returns status "running", "Stopped", as my_status
Dim Services() As String = {"Service1", "Service2", "Service3", etc.}
[code]....
The only reason I want the control array is to be able to use the .Text and .BackColor properties of the labels in the loop. If I make an array of strings with the label names it doesnt seem to pick that up.
View 6 Replies
Mar 4, 2012
I am creating a dll with all the functions and subroutines that I use all the time and I decided to create a function that I can pass different types of array to so the function obviously (or not) would have an array of type object. Now I no you can pass any type into an object type but when I pass an integer array into an object array I get an error.
value of type '1-dimensional array of integer' cannot be converted to '1-dimensional array of object' because 'integer' is not a reference type.
Shared Function CompareArray(ByVal FirstArray() As Object, ByVal SecondArray() As Object, Optional ByRef ErrorMessage As String = "") As Boolean
Dim IntArrayOne() As Integer = {1,2,3,4,5} Dim IntArrayTwo() As Integer = {1,2,3,5,6} Dim IsSame As Boolean = False IsSame = CompareArray(IntArrayOne(), IntArrayTwo())
View 2 Replies
Mar 29, 2010
I am having some trouble creating an object array of different object types. Here is what I have so far:
Public Sub New()
Dim b1 As New Book("Book Title 1", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
Dim b2 As New Book("Book Title 2", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
Dim b3 As New Book("Book Title 3", "Gold Book Publisher", 1.0, "Bob Jones", "192DJDJD212", "01/02/10")
[code]....
If I define the array As Book (Public publicationArray(6) As Book) or Magazine (Public publicationArray(6) As Magazine) I am able to access the properties of that class but not both. I think I need to define a type for each array instance but not sure how to do this.
View 5 Replies
Mar 4, 2009
I have an interface that describes an specialized list in my application...
[Code]....
Is there a way to make an interface serializable, or am I going to have to convert each of my objects into a concrete class implementing the interface, and then return that class?
View 2 Replies
Jan 19, 2011
I created a Right-Click Menu option for files. When the user clicks the menu option it will copy all of the file paths to the clipboard.The following function I have will retrieve all of the filepaths to the clipboard. The problem lies in adding the filepaths to the listbox. If I turn single instance application off the result is multiple instance of the application for each filepath. Say for example I selected 2 files and clicked my right-click menu, I wind up with 2 instance of my exe with each file path added to the listbox, 1 in one listbox, the other file path in the second instance listbox.
Public Sub getthepath()
Try
Dim thefilepath As String
[code]....
Is there a way to loop through each file path from the clipboard and add them to the listbox through a loop?Several times I have tried different ideas I had that I thought would do it and I got odd results but never a good result.
View 4 Replies
Jan 30, 2011
what's the difference between variable array and object array?
View 7 Replies
Feb 22, 2010
The last line in the code below throws the error. Is it because I haven't intialized the size of the byte array?
Public Class Form1
Private toSocket_IPP As Byte()
Public Sub New()
[code].....
View 3 Replies
Aug 30, 2010
I am working on a project and came to a junction. I have various data in a object array, myObj().
How can one convert Object Array to Byte Array
I dont know if i should be using Memory Stream, Buffer, etc.
View 1 Replies
Nov 11, 2010
I need to make a program in vb that takes a 1 page existing pdf that i specify and inserts that into another existing pdf that i specify.
View 4 Replies
Jan 11, 2011
This is my code in vb.net 2010:
Structure feature_s
Public feature() As Integer
End Structure
[CODE]............
I keep on getting a error "object not set to an instance of an object" i am puzzled by this since there are no errors until i run the program. I redim the array. the build is fine. the exception is handled. and the structures and "dims are all global"
View 6 Replies
Apr 4, 2010
I have an array of 10 x 10 as shown below. In addition to -1, it consists of numbers from 1 to 9.[code]...
View 6 Replies
Aug 21, 2009
Some programs implement command parameters, Like my favourite computer game - Crysis - has them and windows media player has them.But how could i implement them in VB.NET..I want to have a component of my program built as a seperate exe - so it can be an Optional component.But of course the seperate exe, on load, needs data passing to it.So i need something like Process.start("Componentname.exe", "/StartDL <Suchandsuchastring>)/StartDL will need to call a function, and the string that it uses will be given to the function to initiate a download?
View 9 Replies
Dec 19, 2010
like every class in .net does Arrays also inherit Object?
View 1 Replies
