Iterating Checkedlist Items In A Programmatically Created Checkedlist Box
Sep 27, 2011
i have a database that stores clients, categories and sub categories, what i am doing is creating a form that programatically creates tab pages on a tab control for each category and a checked list box with each sub category as an item. so that when the form is displayed it only shows categories and sub categories relevent to the client.
Dim tabpage as Integer = 0
ab.Open("select distinct category from etc etc", connectionstring)
While Not ab.EOF
TabControl1.TabPages.Add(ab.Fields("category").Value)
I would like to read a ValueMember of all checked items in my CheckedListBox. i have sub as below to add im my checkedListBox.[code]Then how to loop each of the checked items in the checkedlistbox so that i can store it to the database.below is the code for storing in database using sp.[code]
I have a number of idential repeaters, and I need to iterate through all of the items. I currently have:
For Each item In rpt1.Items .do some stuff Next[code]....
Is there a simple way to reduce this to a single For Each ... Next loop?
Edit: There are a number of local vars involved in "do some stuff", which is why I can't just pass the item into a function - the call would have to include about 8 ByRef params.
I am just getting back into VB.NET, and I need to ask a question. I am doing a project for a class which requires iterating through 360 items in a scrollable control that will pause every so often. I am thinking I might use either a ListView or GridView, but I am not sure if this is the right way to go or if I need to use a different control all together.
Can I safely modify -I mean: remove and re-add on a different index position- any item that I iterate over using a For Each loop in VB? We are talking about the VB Microsoft.VisualBasic.Collection class.And if yes: Is this by design, or an implementational detail, that I am building upon then?
After searching Google, and finding only answers to XML indent, "just use Visual Studio's auto indent" and "that would be crazy to write your own auto-indenter" I've decided to come to the good place: StackOverflow.Question:
1. How do I add an 'indent' to a programmatically created file?I would be generating the files via the System.IO class / streamwriter, unless someone can tell me of a better way, I just want to generate a file from my asp.net page, a windows app or possible a batch file (well, maybe not this last one)... to generate a class file, such as Employee.vb OR EmployeeDAL.vb
In my program it detects if there is more than one monitor connected. It then creates a form on each monitor screen and you just click on the screen that you want the program to run on.
Here's where I'm having a problem. Everything works great, but when I load my MAIN form how would I call those programmatically created forms? I can't just do frmYou.close.
Here's the code I use to create the forms.
Public myScreen As New Point Public ScreenReady As Boolean = False Public sX As Integer'holds screen x width Public sY As Integer'holds screen y height
how to connect a SQL Table to a DataGridView that was previously created programmatically. Basically, at run-time the user names and creates several empty SQL Tables and DataGridViews. After that the user selects from a combobox the name of the SQL Table and DataGridView that they want to import data into, then clicks a button named "Import"...after clicking "Import" the user navigates to an Excel file, chooses a worksheet, clicks a "Continue" button and then the code successfully connects to the Excel import file and SQLBulkCopies the data to the SQL Table...next I need the imported data in the SQL Table update to the DataGridView...this is the part I can't figure out.
The challenge is the datagridview isn't hard coded it was created and named programmatically at runtime. So now the user selects the name of the SQL Table the data resides in and the name of the DataGridView from the combobox "moduletableCB" and I need the code to update the datagridview.
Now everybody knows that creating GUIs that have lots of repeated elements that are evenly spaced by hand is for chumps; all the cool kids use loops and add them at runtime. Given that being one of the cool kids is one of my top priorities I decided to give this a go - as my current project involves creating a grid of check boxes and then chunking them together under one event handler. In my experience - an nice effective way of dealing with grid like structures (2D arrays if you will) is to use nested loops such as:
For intY = 0 To 9 For intX = 0 To 9 Dim chk As New CheckBox
I have programmatically created a listview in n # of tabpages to display information gathered from an SQL database.Once created, i want the user to be able to select an item from any of the listview's. How can i reference the selected item?[code...]
All i want is to know that when a button control is clicked, which item is being selected in which listview?
I have code that refers to controls like buttons and labels and textboxes (obviously), but i want to create them programatically, how can i create a button or label that is on a form that has also been created programatically. Here is what i have:
Dim frmIndashone As Windows.Forms.Form Dim vscPage As Windows.Forms.ScrollBar Dim lblPageNum As Windows.Forms.Label Dim txtVector As Windows.Forms.TextBox Dim txtPageCode As Windows.Forms.TextBox
I am asking because i have a With statement that assigns different values to the different things that looks like this below:
RaiseEvent Load(frmIndashone) With frmIndashone .vscPage.min = 1
[code]....
But i am told on everyline of the second snippet that vdcPage, lblPageNum, txtVector and txtPageCode are not members of windows.Forms.Form, How can i make them members?
I have programmatically created a new project from a windows application. I now want to programmatically add a form to this project that already has some data bound controls on it.
I have a drop down menu, and based on which item is selected, I call a web service and then dynamically create some text boxes.The first time I drop down the menu and select an item, it works perfectly, and the text boxes are created and populated dynamically. However, the next time I drop down the menu (after the first postback), and select something different..fter the second postback, the original values remain in the textboxes.
Im Using a datagridview to display items in an invoice. when the user enters the data in, they use a DGVcombobox to select which particular item they want. what i want to know is. can i change the text of the combobox programatically after the items have been filled
Edit The DGV in question has 2 predefined columns one is a comboboxcell and the other is a text box cell im trying to fill it using
How can you add a click event to dynamically created menu item?I thought I could do something like
Loop through all the items in the Menu1.DropDownItems then create a mousedown even on the item and execute an action based off that.I'm new to VB and was wondering what logic to use. Will that even work? How will the events be saved through the life of the application?
I want to make an application that's pretty much all server side. I have everything sorted, apart from downloading images from my server. I have a listbox containing all the game names, in this format. pacman rallyx mspacman asteroids There are many more, that's just an example.
Each game name is stored as a folder on my server. Inside those folders is the games boxart, called boxart.png. What I want to do is make an application that makes those folders and downloads the images. I have made the "create a folder for each game name" code already, now I just need to add another line or two to download the image inside those created folders.
For x As Integer = 0 To ListBox1.Items.Count - 1 My.Computer.FileSystem.CreateDirectory("C:UsersJoelDesktopids" + ListBox1.Items(x).ToString) next
I am using VB.Net and EWS Managed API to create appointments in Exchange 2010. When i call the "Save" method, an appointment is also created in the "Deleted Items" folder in the Outlook. Why is it the appointment is created in the "Deleted Items" folder? How do i avoid the appointment created in the "Deleted Items" folder? I use below code to save an appointment in the Outlook Calendar:
I have created an access database which i want to search with vb.net, I tried a few thing but it didnt work as desired.
Firstly the program is suppose to display items in the database base on the criteria selected by the user. what i've succefssfully done so far is I've added a datagrid 2 combobox, 1 (searchcbo) with the columns in the database and the other (searchcbo1) will autoload the items under the column selected in and a button (searchbtn) but i have no clue of the code to put in the button. i also tried the fill method but that didnt work as i wanted to. ultimately i want a combobox with the list of columns and a textbox to enter criteria and of course a search button.
The searchbtn should act as the "WHERE" sql command, e.g. SELECT EmployeeNumber, Firstname, LastName, Phone, Location....etc FROM CallLog WHERE searchcbo.text = searchcbo1.text And display the results in the datagrid.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'CallLogDataSet.CallLog' table. You can move, or remove it, as needed. Me.CallLogTableAdapter.Fill(Me.CallLogDataSet.CallLog)
I know how to add the items during design time but how do you add the items through code. I want to fill the combo box in the datagrid with the results of an SQL query?
I have an XML file, with a rather large structure. I'm pulling several entities out of it throughout several systems, and its dynamically updated once a day. I'm using a Linq Query that is exhibiting odd behavior, its only returning if the first entry in the site tag matches the search-pattern. If its number 2 or 3, it fails to return anything. Why would this behave that way?
The following function written in VB handles pulling the data
Public Function xmlSchoolListBySite() As IEnumerable Dim doc As XDocument = loadXML() Dim loadedPrograms As IEnumerable(Of XElement) = From c In doc.Descendants("Organization") _ Where c.Descendants("site").Value = MySite.Site.s_Url _ 'contains Result.RawURL.tostring() formatted Select c.Element("Title")
I have two arraylists that contains links in one and the root url in the other. Sometimes the lists dont equal in number and I would like to iterate through the links list and if it contains a matching root url add it to a third list but also avoid any duplicates. I tried this but am not getting consistent results.
For Each link As String In urls For Each part As String In post If part.Contains(link) Then
[code]....
Perhaps there is another way; basically the part in post is a link to a page and contains the root url( which is link in urls). After extracting all these I need to ensure the 2 lists match.
I am iterating through rows in a datagridview in the following manner
[Code]...
Why are the column methods and properties not all available in this manner to set individual datagridview cells properties? The only options available for the variable,
I have several label boxes on my design form that all share the naming convention lbl_#.text where # ranges from 1 to 60. I want to make a loop that iterates through each lbl_#.text adding some incremental value, let's say multiples of 2 for this question's theoretical purpose.Something such that the end result would amount to the following:
