For Each Loop - Value Returned From List?
Mar 21, 2012
I have a problem with a For Each Loop that doesn't make any sense. The For Each Loop returns values from a list which are Memory Ranges for a given device. When I check the count in the list it returns 3. The For Each only returns 1.
Here's my code:
Private Sub DisplayDeviceResources(ByRef lvwResources As ListView, ByRef intClassIndex As Integer, ByRef intDeviceIndex As Integer)
Dim curDeviceClasses As New DeviceClasses
Dim lvwItem As ListViewItem
EnumerateResources()
[Code] .....
View 12 Replies
ADVERTISEMENT
Sep 8, 2009
I have the following code [code] This loop takes sometimes up to a minute to execute. I would like to display a message box giving the user the option of terminating the loop. When I use ShowDialog the loop doesn't execute until DialogResult is returned. When I use Show, the forms buttons are not accessible until do loop is finished. How can I make this work?
View 7 Replies
Nov 6, 2011
Im still doing some amatuer programming, but now in .net and Ive come here with a question that I cant seem to find an answer to... Basically, Ive got a program im writing to interface into my companies AD and return some values, which then trigger other events etc..
The problem Ive run into is trying to find and easy way to compare the returned value when against a list of possible combinations (16 possibilities to be exact), and if its one of them then all good continue on but if not then I need to throw an error and exit sub.[code]...
View 4 Replies
Dec 15, 2011
how to add a string item to a text box, returned from another form that has a list box?
I have two forms. on the first form I have a button which calls another form that has a List Box.
When I select the value from the list box and click on the apply button then the value should be
passed to the first form that will also have a text box. The text box should contain the value of
list box.
View 3 Replies
Jun 23, 2009
I am currently writing unit tests for an application near completion (before management looks at it and turns it inside out). I am testing the business layer and a method is set to return a datatable of all "GroupID"s, which are simply an integer to represent the group that a user belongs to.
I'm assuming the best way to assert on this unit test would be to assert that the correct groupIDs are being returned from a controlled test database. However, I'm not sure how to assert on a datatable. Is the only (and best) possible way to accomplish this to simply loop through the datatable until it's empty and add each value to an array of integers? How would one go about asserting on this test?
View 2 Replies
Nov 22, 2010
there's a list-box with items, and say you want to modify an item in the middle of the list. You select that item and click "Modify" button and a new form appears with the previously selected item data from first form ready to be modified in a text-box. After modifying and clicking Ok the second form suppose to return that modified string to the first form and insert the modified string into the same spot instead of the originally selected item, so it looks like it was edited to the user.
View 2 Replies
Oct 1, 2009
I'm looping all the properties in an object via reflection:
For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next
how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.
I've experimented with GetType and TypeOf but have not managed to get anything working.
To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?
(VB.NET 2005 with .Net 2.0)
View 3 Replies
Jul 29, 2010
This is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...
View 1 Replies
Mar 16, 2011
In an Word addin, I'm using
this.Application.ActiveDocument.Words;
to get a list of all the words in the curret document. Now when I parse this list, I found the ,, . and are also in this list. Why is Word considering these words? I also looked at the word count in the status bar and that was wrong too, as for 7 words in my document the status bar shows 9 words.
View 1 Replies
Dec 17, 2009
I need to write vb code to get a list of files from a source folder and then loop thru each filename and see if it exists in the destination folder and if not, then copy it to the destination folder. I know how to do the FileExist and Copy command (once I have the filename) but I don't know how to set up the loop where it will read thru each filename in the source folder.
View 8 Replies
May 2, 2010
I am writing a program for a client that will allow them to disable and enable services. I have the services loading into a checkboxlist on a form. When the user clicks the "update" button I go through all items in the checkboxlist and see if they are checked or not. The code I have so far, and the code Im stuck with is:
[Code]...
View 4 Replies
May 13, 2010
Public Class CustomerList : Inherits System.Collections.CollectionBase
Public Sub Add(ByVal name As String)
Me.InnerList.Add(name)
End Sub
Public ReadOnly Property items(ByVal i As Integer) As String
Get
Return CType(InnerList.Item(i), String)
[Code]...
View 1 Replies
Aug 26, 2009
In my VB.net application I am populating my customer object and looping through it as shown below.As there are thousands of customers, I want to do it 500 customers at a time.Is there anyway I can have one more For loop to process 500 customers at one shot in vB.netI am not using LinQ as the database is Oracle.[code]
View 2 Replies
May 6, 2010
how can i loop until the last row of a data grid
I want to loop through a series of rows
Dim num4 As String Dim found As Boolean
HERE HOW CAN I LOOP to check if a nummber its found and if it is found then condition = true if its not found when finished the list the n condition = false For ver = 0 To 1105 (IDK HOW TO LOOP SO I DID THIS BUT DOESNT WORK CUZ IT CHECKS row FOR row RATHER THEN ALL OF THEM)
[Code]...
View 2 Replies
Jan 6, 2012
i have a list that has things that needs to be looped. This list can be up to 500k items.I would like to add a multithreading option with a variable. This is not an issue, as I know how to make multiple bgw's (Code below)
i = spin_NumOfThreads.Value
Dim bgwrks(i) As System.ComponentModel.BackgroundWorker
For Each bgworker As System.ComponentModel.BackgroundWorker In bgwrks[code]....
so in that code, it'll make the number of threads based off of my spineditor.Now, ideally i'd like it to go through a list, each thread does its thing.Now, a simple dowork would just allow it to do 1. i would ideally like it to stay @ X threads until the list is done, so how would I basically go about remaking a thread once it finishes to continue? So, lets say I have 50 items in a list, i set the number of threads to 5.The first 5 would do the first 5 items, when the 1st one finishes, it works on item 6, then the next would do 7, etc. and it'd keep remaking until 50 is done.
View 2 Replies
Jan 20, 2012
I am used to C# and just started vb.net. I am trying to do a while loop when it loops through the items from a list.
While oResponse.outputControl.Items(i) <> Nothing
//Do something
End While
View 2 Replies
Sep 29, 2010
learning about loops (still a beginner) in VB.net. I have got the below code and basically it is meant to stop the loop once it reaches a number above 20. Now, the problem is that it does stop after number 20 but the last number that is displayed in the list is always above 20..... how I can stop it showing the last number as above 20?
[Code]...
View 6 Replies
May 1, 2012
How would I loop through a directory recursively, and get a list of ALL file extensions used, not duplicating any of them? It could just output to the debug window. Or perhaps write to the database and have the database filter the duplicates. So it would be great to see...
[Code]...
View 2 Replies
Nov 11, 2009
I'm trining to loop through two separate list boxes to find a match for the textbox then display a message in the display label. Right now it just works on the first two zip codes in the $15 shipping zip code list box. Here is my code:
Option Explicit On
Option Strict On
Option Infer Off
[Code]....
View 2 Replies
Oct 17, 2009
I'm trying to add all of the totals within a list box, which would then be displayed in a label.[code]
View 3 Replies
Mar 24, 2012
How do I cycle through a ComboBox Values list so I can check each value and select one of them efficiently?
Examples in C# or VB.Net welcome.
View 2 Replies
Dec 9, 2011
I'm trying to get an in a loop to accept a value and add it to a list each time okay is pressed. For some reason, I have to add a value twice for the input to be added to the list. For example, if i enter the string "hello" in the inputbox and click okay, it doesn't add to the list, but if i do it a second time, it goes in.
Here is the code for it
Do Until lstCourse.Items.Count = CDbl(txtClasses.Text)
InputBox("Enter Course Number", "Course Number")
strCourse = InputBox("Enter Course Number", "Course Number")
lstCourse.Items.Add(strCourse)
Loop
View 1 Replies
Jan 28, 2010
I need help in finding out if there is a more efficient way of writing my code. The code below is a list of radio buttons all of which have different values for example
radiobutton1 has a value of 1
radiobutton25 has a value of 20
the values are stored in a variable called 'count'
the 'count' is incremented by the ammount from the radio button clicked.
Is there a way the radio buttons can be compressed into a for loop and if so how can i still access thier each values.
[Code]...
View 9 Replies
Mar 24, 2012
I have 1 picture box, and 1 image list with 11 pictures in it. I also have 1 button.
Heres what I want to happen:
I click on the button and the first image in my image list goes into the picture box.
I click the button again and the second image in my image list replaces the first image in the picture box.
I click the button again and the third image in my image list replaces the second image in the picture box.
View 14 Replies
Oct 10, 2010
I have a list of object that i loop through, and in this loop i have an async webrequest that is getting a response from a site, according to the current object's data.
How can i wait for each async request to complete b4 going to the next object in the list? Should i use application.doevents?
View 1 Replies
Mar 1, 2010
I cut my programming teeth on QBASIC so apologise if I'm a bit behind the times. I wrote a program in QB and I'm trying to convert it to VB.NET. One stumbling block I've hit is the DATA & READ facility, there does'nt appear to be an equivilant in VB. I want to read a list of data into an array using a FOR NEXT loop.
View 13 Replies
Jan 24, 2012
i have having a annoying problem to do with loops.
[Code]...
When the user selects a few rows from my list box i want to run code on them selected items which i can do fine, but when the user only selects one of items and hits the button. it goes throught the loop first and gets the picture and all is fine its when it comes back to this function after there are no more items to perform tasks on. it increments index again and then falls over because its out of bounds of the array. i want it to stop after one loop but i also want it to be able to have the multiselect option still so the user has a choice.
View 2 Replies
Jan 13, 2012
I have a List in Do-Loop. That List is collecting some information with programmatically. So, How can I know and end the loop if List repeated in loop.
Code like this:
Dim X As New List(Of String)
Do
------
Loop While X IsNot Nothing
My code can't quit from loop and it repeats the list from first string. I want to know how can I determine the last value of list to change script like this:
Loop While X.Count = 10
View 5 Replies
Apr 29, 2012
Public Class MortgageDetailsCalculatorForm
Private Sub CalculateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CalculateButton.Click
[code].....
View 14 Replies
Oct 3, 2011
I'm trying to loop through an array of byte and copy the contents to a new list of bytes, and display them back. see the code below.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myByte() As Byte = New Byte() {65, 66, 67}
[Code]....
I want to see str1 as "ABC" but the out put i get is "A B C" (ie with spaces between letters) note: I have to copy(chunks) within a loop and get the result at the end, this is just a sample to reproduce my real issue.
View 2 Replies
