I have an array of objects, I find the item by index, assign a value but then looking at the array the item doesn't show the updated value.
Public Structure Cheque
Public Id As String
Public Status As Byte
[code].....
I'm still somewhat new to ASP, and can't seem to figure out what the issue is.When I update an item in FormView, I need the text of a button to change.I'm using:
Protected Sub fvClientInfo_ItemUpdated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewUpdatedEventArgs) Handles fvClientInfo.ItemUpdated
btnEditClient.Text = "Edit"
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I've been trying to feed a multi line textbox into a string array then check item by item if a string contains part of it.
[Code]...
part of my code is in below
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I would expect to see the path.Path include the new record, however, I also notice that tempnextgen also include the new record. Can anyone help me out on this issue? Why the tempnextgen got updated as well, how to prevent this unexpected operation?
How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
View 7 RepliesI have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
View 18 RepliesRegarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
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This is my source so far[code]...
At the moment it reads in what I have in a text file, splits it up based on where commas are placed and puts the split data into an array, i.e. if the text file is a,b,c it will split up the 3 characters and put them into an array.
What I want to know is, is it possible to write each item from the array into a new TextBox - in the same way that It adds 1 to the 'i' variable each time, except with each new item the TextBox it uses goes up by one, i.e. 'a' in TextBox1, then 'b' in Textbox2
Here is my code as I have it
Code:
Public Class Form1
Dim OpePro(7) As String
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How can I delete an item from an array in VB.NET?
View 3 RepliesThis is what I currently have but it's not deleting the items, just showing a message
Code:
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles btnDelete.Click
Dim strTitle As String = ""
[code]....
I have an app that I am developing to keep track of my members' names and phone #'s. I have all current names and numbers in a csv file and they are read into a structured array. The app can add, delete, and modify members. I have everything coded except the 'Modify' menu item. The list box is populated with only names at run time, I would like to have both the name and phone number displayed in the two text boxes I have on the form when a name is selected from the list box. I can get the name to display in the text box I have for names, but since the phone number is not in the list box I am wondering how I can get it into the appropriate phone text box. I used txtName.Text = lstMemberList.SelectedItem to get the name displayed but since the phone number is not in the lstMemberList list box I cannot figure out how to get it into the txtPhone text box.
View 4 RepliesI'm loading a file into an ArrayList, then looping through the ArrayList and each time adding a DataRow to a Datatable, then using the Datatable as the DataSource for a GridView. My problem though is that the file has one field at the end that I don't want to display. I'm not sure though how to not to add it as a DataRow or what to do so that it won't be displayed. Do you know what I might do. This is my
' Declare and setup a StreamReader object to read the file
Dim objStreamReader As New StreamReader(fname)
Dim arrText As New ArrayList
[Code]....
I am trying to get each item in a list box into a string array. However, I keep getting an index error and I am not sure why. I am doing this so i can perform a LINQ on the array.
Error:InvalidArgument=Value of '16' is not valid for 'index'.Parameter name: index
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Module Dic_Select
Public DicDataSelect() As DicDataList
Public Selected_Dictionary_Name As New ArrayList
Public Function New_Dictionary(ByVal Dic_Name As String) As Boolean
For i As Integer = 0 To Selected_Dictionary_Name.Count - 1 Step +1
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I am coding for a WPF application that has a ListView. I want to add values of one column of selected items in the listview to a string array.
View 2 RepliesI'm having trouble trying to match a selected list item to a space in an array.
I'm trying to get the program to loop through the array and each time check if the contents of the array space match the selected list item, but I get errors when I try. I know I have the code wrong but I don't know how to fix it.
Private Sub lstMembers_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstMembers.SelectedValueChanged
Dim index As Integer = 0
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how I pick a random item from a array?Here's the little bit of code I got:
Dim array() As String
Dim words As String
words = "hello*123*abc*zxw"
array = Split(words, "*")
But what should I do next to randomly select a item from "array"?
How do I remove an item from an array at a specified index? This code copy's the index and then adds the indexes until it gets to the one you want to remove, skip it, and try to continue. But I get so many errors. From being out of the bounds of the array, to just being null for some odd reason. [Code]
View 5 RepliesIn WinForms, I do a databinding between controls and properties of a Business Object :
txtNote.DataBindings.Add("Text", oZones, "Note") Note is a property of the BO oZones. It is OK. Now I have an array as properties in the BO oZones. In the following sample, this array is IndemType().
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I have 2 things that i need to keep in sync An array of file paths A listbox with just the file names of the file paths The indexes of each correspond with the other object.If the user deletes an item from the listbox (the file name) i want to delete the item in the File Path array. Once this is done, i want the file paths and file names to still be corresponding?
View 6 RepliesI have a function that is suppost to take a list of strings then split up each part. This is my code
For i As Integer = 1 To UPdata.Count
If InStr(UPdata(i), "!!") Then
Dim DataTBP() As String
Do
DataTBP = UPdata(i).Split("!!")
[Code] .....
One section of UPdata would look something like
ABC#DEF@GHIHSJD!!143#ISJ@PSIODH!!
What I want it to do is firstly separate the lines using !! so i would be left with
ABC#DEF@GHIHSJD
143#ISJ@PSIODH
That part works fine and I am left with an array DataTBP() with 2 values. The strings found above. Its then suppose to extract the part before # for every string left in DataTBP (In my example two) but the function that's meant to do this:
For j As Integer = 0 To UBound(DataTBP)
Dim DataType As String = DataTBP(j)
DataType = DataType.Split("#")
Select Case DataTBP(j)
[Code] .....
Throws me the error
Value of type '1-dimensional array of String' cannot be converted to 'String'.
But I don't know why as DataTBP(j) is a string not an array but a string. I've also tried
For Each a As String In DataTBP
Dim DataType As String = a.Split("#")
Next
It throws the same error
I'm using Streamwriter/Streamreader for the first time in this project and keep getting an "Argument out of Range Exception was unhandled" error.It says "length cannot be less than zero. Parameter name: length."This happens at "dblYearly Income." Also, how do I find out the number of occurrences of an item in an array? For instance, I have a Race combobox and need to find out how many occurrences there are for each race.Also, is there a way to count the number of occurrences of an array itself, I guess the upper index value? [code]
View 7 RepliesI have an array called linedistancearray.I am now trying to find the smallest integer in that array and store it another variable called mindistance..The following is my initial idea: I sort the array and then pick the integer with index 0. Array.Sort(linedistancearray)However what I get is the first item being a 0 not the smallest integer value in the array I need. HOWEVER if I choose the index 1 it works.So what I was thinking was a way to remove all 0s in the array. I am not concerned about the order of the items at all all I am looking for is the smallest integer in the array.
View 8 RepliesI'm making a function that searchs an array of Customers and returns a Customer object by a given ID.
I'm trying to do so with Lambda Expressions,and this is what I have so far:
Public Shared Function FindCustomer(ByVal ID As Integer) As cCustomer
Dim customer as New cCustomer = _ _
Array.Find(arrCustomers, Function(c as cCustomer) c.ID = ID)
Return customer
End Function
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Basically, the user can type in a name and a job description into two different txt boxes and then click add. It then adds the name to the listbox and stores it in a string list (Public strList As New List(Of String)) it also stores the job description in a string list as well (Public strListDescription As New List(Of String))Then when you select an item in the list box it knows what data to bring up in the txt boxes using an array with these lists:
Code:
Private Sub lstMyCourt_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstMyCourt.SelectedIndexChanged
Dim i As Integer
[code].....
I see that VB.NET doesn't support control arrays the same way VB6 did. how to do control arrays in VB.NET in my following example...I have an array of strings. I want to load a textbox for each item in the array, and when I press a button, I would like to cycle through each of these textboxes, retrieving their values.
View 9 RepliesI am attempting to create a program that opens a file and reads the contents to then display them in a set of four text boxes (e.g. id, firstName, lastName, avg.Salary). it stores the data in an array.
i have done all that i can do, however, i wish to display in a label something similar to this "5/10 (5th record of a total of 10)" meaning the 5th record in the array out of a total of 10 records. i have already done the code to display the total amount of items in the array, that part was simple, but i can't get my head around trying to code something that will display the record that i am currently viewing in the text boxes.
i have a "view previous record" and a "view next record" button that will go through to the next or previous record, in doing so will change the "5/10" records to the next appropriate number, e.g. "5/10" goes to "4/10" if the previous button is pressed (in doing so, obviously the records that are shown in the text boxes will change to the next or previous record)[code]...
I retired recently from a job where we had VS2010 Professional for doing ourdevelopment. Now that I'm retired I can't afford "Pro" and cannot find the component than looks like this (see above). Is/was that component left out of the "Express" version? Do I have to "load" it (and, if so, what name should I look for)? I vaguely remember it being some kind of container for other components.As a follow-up question - can anyone provide a (readable) example of creating a two dimension array of this item I could study?
View 6 RepliesI have made an employee list and linked it to an Access database. The initial problem I was having is that in my program I had to link their ID's and names so if you click on an employee in the listbox, his or her's ID would automatically display in the textbox below. Since I did not know how to do so, I decided to make an array and store the ID and names separately while the listbox is being compiled. And so, the form became linked and adding became easy to code.But my problem came in deleting an employee. When deleting the name should be removed from the list, but this is where the order of the arrays messed me up. How do you maintain the order of the array? Here is the code I used. I dimmed 'count' as an integer and it is responsible for keeping that order.[code]You will see Staff_CodeTextBoxes etc. and info_Staff_CodeTextBoxes. etc.These text boxes (not visible to the user) are responsible for holding the data while the array takes the data from it, or adds it's own data to it.
View 4 Replies