I have an application that reads data values (numeric) from a data file. Due to a change in data requirements, I need to put these into a paramArray so I can calculate the MEDIAN of the series of numbers. I have seen some of the MSDN examples and they are all good except they load the paramArray with ArrayName(#, #, #, #, #). That's OK for a simple example, but how do I load a paramArray while reading numeric data from an ASCII input file? The number (Ubound) of samples is usually 153 but can vary considerably.
I think I can work out the rest of the MEDIAN calculation from the MSDN example code.
I have a Class Library that is exposed to COM like this:
<ComClass(SomeClass.ClassId, SomeClass.InterfaceId, SomeClass.EventsId)> Public Class SomeClass Public Const ClassId As String = "GUID1" Public Const InterfaceId As String = "GUID2"
[Code]....
Compile error:
Function or interface marked as restricted, or the function uses an Automation type not suppport in Visual Basic.
What do I need to do to properly expose this Method so I can use it like this?:
I am trying to use xml documentation tool in my application. one of my methods receives 'ParamArray' as an argument. i want to document this argument elements.
here is my code Public Sub LoadSearch_ByEmployee(ByVal EmployeeID As Integer _ , ByVal FromDate As Date _
I've got one function with a paramarray, and I want to pass the same paramarray to a second function. I do not control the second function, and so cannot modify it.
Public Sub Main() Foo(1,2,3,4,5) End Sub Public Sub Foo(ParamArray Byval arg as Integer)
A former co-worker wrote a class in C# that was to be used as an attribute. I'm having to convert his work to VB (yeah, it's pointless and way more work than necessary, but management thinks it's a good idea). Unfortunately I'm having an issue because one of the main properties of the class is an ArrayList which is set with a ParamArray in the constructor. The class looks like this (note I've tried to abstract out the problem, so this is a simplified version of the class only)
<AttributeUsage(AttributeTargets.Field Or AttributeTargets.[Property])> _ Public Class LabelAttribute Inherits Attribute Public Sub New()
[CODE]........
In the first one, there is just the single label being added. No Problem. In the second one there are 2 different labels being added. Again, no problem. The third one, however, is a problem because it's assuming that the "Description", which is supposed to be the description is instead being interpreted as another label.
This wasn't a problem in C# because it could be set as follows:
[CODE].................
Of course this doesn't work in VB because optional parameters aren't referred to by name as they are in C#. As a stopgap I've changed the constructor to allow only a single label like this
CODE]..................
But that undermines some of what this class is meant to do. Does anyone know how, or even if I can get the same basic functionality to work in VB?
Think there must be a way to make the existing design work. Imagine this class was built into a library that I could not modify. Would I be forever forbidden from setting Description because of this design?
I'm building a class, and i let the user select several options to show or hide some features in another form.In my class i declared an enum with 5 values, and in one of my class constructors i declare an paramarray of the type of the enum.Now i want that when i declare a new object of this type, when the user put the "(" char, a popup/tooltip/intelisense (don't know what to call it), show all the options available. Like in the classes that allready exist in the framework...
Sounds simple enough, but its not working. In this example, I want to set the values of 3 fields to equal a 4th. I could do something like this..[code]...
Values in the param array did not get updated in the return! I was expecting to have all of the final values now be "1", like they are in the Function.
Is there any way to get an update-able ParamArray collection like this? ParamArray must be declared ByVal, but with a reference type like String, shouldn't that only make a copy of the pointer and allow me to change the underlying value?
I don't know whether it is simple or not because i am new to programming. my requirement is : In my vb.net winform application, the filenames of the files present in "D:Project" willbe displayed in DataGridView1 control. Now I want to load these files one after another into memory stream buffer and add the headers("ID","Name","Class") to the content in the file. Then I want to save these files in "C:" with "_de" as suufix to the filename i.e.,sample_de.csv.
Ok here we go again, im a complete beginner to coding and have started with visual studio 2008 using the .net/vb libraries, as my first project i went with an emulation application, and it went great:So now i think its time to move onto a little more advanced tech's, so i added in a combo box and i want to change how my code works, and this is where my troubles are.To start of with the combo box, i have it added to my winform and have 3 items on it 'Action' 'RPG' and 'Sim' and i have made 3 .txt files in the projects root folder with the same names. What i want to have happen is when the user selects for instance 'RPG' from the combo box the items displayed in the listbox change to the contents of the rpg.txt file. After searching around for a few hours and no luck i tried this
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged If (ComboBox1.SelectedItem = "RPG") Then
I have a project that I am doing which is as follows and need your help to complete the last section I can start word no problem with process.start("winword.exe")the problem is the attachment I attached the documents using project resources and then add exisiting text files and attach it to the project but when I debug I get the following error the code used is as follows
I am using the following code and I get an error that the file isn't residing where in REALITY IT IS! I know its my syntax.BTW, this directory structure I also created in the Solution Manager.
When I get ready to load the .txt into the listbox, it says that there is an error, yet I have no compiler errors. Here is my assignment I am having trouble with:
Public Class Form1 'Define the Members Structure Structure Members
I am trying to create a program which reads data from a text file and insert the data in to a SQL 2005 table, but unfortunately it only reads the first line and insert correctly but not the rest of the lines on the text file
Is it possible to load an *.ico file onto a PictureBox ? I know I can use : PictureBox1.Image = System.Drawing.Image.FromFile("C:MyImage.jpg") but I'd like to use an icon . I have tried some other methods that read "Icon" , but I failed . Up to now the only thing I have thought is converting the file format form *.ico to *.jpg , but I think that's ridiculous ...
I'm building an app to manipulate information in a CSV (tab-delimited) file. The 1st part is to load the file and I'm having a real tough time of it. I'm using MS Visual Basic 2010 Express. Here's the code I have with a few comments:
I have an xml file called "QuotesxmlDoc", in my program I have written code for a search screen that searches the xml file for titles or keywords in quotes saved and the information is then shown in a datagridview, see the code below:
Private Sub btnSearchQoutes_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearchQoutes.Click Dim xmlnav As XPathNavigator
[Code].....
On the main screen of the program, I want to show all the saved quotes from the xml file in a datagridview, I just need to show the date, category, author, title of the quotes, I also need the datagridview to refresh everytime a new quote is saved.
I've written the following sub to load a comma delimited file into my datagrid view but it's hanging up when it attempts to load the first two values into the cells of the datagridview. I think it's having trouble adding the cells to the datagrid. I have tried writting them directly using the .text of the specific row and cell but when I incremented to the next row it hung up because the row didn't exist (I think).
one I'm trying to load a INI file to a combobox then into a Listview but I'm returning with an empty variable. I have a INI file containing the following format:
I'm trying to load the contents of text files into a listbox. It loads the file fine but adds an extra character at the end. I have a feeling it has something to do with my Split command but I'm not sure how to fix it.
Here is what I have:
Dim ofd As New OpenFileDialog ofd.Filter = "Text files (*.txt)|*.txt" Dim result As DialogResult = ofd.ShowDialog
I have been searching for days to get some code that will do this. I need to open a spreadsheet and read maybe 2 dozen cells into variables in a VB.Net program. Specifics are: MS Office 2003, Vis Basic of VB.Net 2008. Everything seems to revolve around the following lines which do not work for me. I am not sure if this is version differences as most ppl here do not name which version they are using. [code]Does this method not work in VB.NET 2008?
I generate my xml into "variable string str" by using "dataset.GetXml" and then I write the "xml which is contained in variable str" into "file.xml" by using sFile.WriteLine(str) while 'sFile' is a stream reader"My reason for using 'writeline' instead of 'dataset.WriteXml' because I need to encrypt the 'xml stored in 'str' before I store it into file.xml.I got everything fine for the encrypted result, and so does the decrypted result as well.Here's the decrypted result of my file.xml below (I have checked it the xml value which in str before encryption and which in decrypted file.xml. They are all match well)Here is my plain xml value before it got encrypted or decrypted which I stored it in variable str by using GetXml. I don't know for sure but my xml value doesn't contain declaration "<?xml version="1.0" encoding="utf-8" standalone="yes" ?>" like common xml used to have.All the xml file which I got from GetXml is just like below (No declaration like <?xml version="1.0" encoding="utf-8" bla ?>) Book 1 2010-09-22T14:43:00.0000000+07:00
And since I think it may not cause any problem then I keep coding and decrypt it which is going well and the decrypted result is perfectly same ofcourse.My problem is, when I try to make my xml value show in Data GridView by using the code below, and run the debug, it prompt an error said "could not find the file c:laFile.xml ".
ds = New DataSet path = System.IO.Path.GetFullPath(strFileToDecrypt) ds.ReadXml(path)
i am using vb.net 08. I have a php file loading into a text box. and then i have an external text file. the text file looks like this:"text 1= text 2 text 3 = text 4 etc"I need the program to search for terms inside the text box that are on the right side of the equal sign and replace it with the one on the left
I am trying to make a jeopardy game where you can edit the questions/answers, so I made a XML, I have one function to save default values, then I have another function to load them... the saving goes perfectly now the loading is the problem.
[Code]...
Additional information: Object reference not set to an instance of an object.***i took out the space between Category and the number, that fixed the old error, now i get this one well... thats just about it... I am trying to load the same file that I saved previously.
Private Sub GhostButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GhostButton1.Click Me.Close() End Sub Private Sub GhostButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GhostButton2.Click
I am trying to load an Excel 97 single tabbed spreadsheet into a SQL server table using the OleDbDataAdapter function. From all the documentation I have found, the first parameter should be "select * from [sheet1$]". This works fine for me only if the tab in the worksheet is named Sheet1. If I change what's in the [] brackets to the actual tab name, it also works fine.
