I'm trying to fill a ComboBox with values from a column in a database.I'm trying to use code I found in jmcilhinney's CodeBank post at url...credits to him since it's basically 100% his code in my image below I've tried 4 methods before this, and I've been receiving the same error, so it must be my fault.
View 4 Replies
I'm trying to fill a ComboBox with values from a column in a database...I'm trying to use code I found in jmcilhinney's CodeBank post at url. credits to him since it's basically 100% his code in my image below.I've tried 4 methods before this, and I've been receiving the same error, so it must be my fault... the image below shows the code and the problem.
View 1 RepliesThis is the code that i did to fetch data from the database and filling it to the combobox dropdown list at the form load event:
[Code]....
I have cascading comboboxes and when I choose the value for the first one everything is fine. But when I try to choose the value for the second combo the value of the first disappears. However, the second combobox is populated with the appropriate values and then I have to choose again the value for the first one. This is the code:
For the fisrt Combobox
Dim PostcodeDA As New SqlDataAdapter()
Dim PostcodeTable As New DataTable
[code]....
I would like to load a combobox with some values from an access database. On form load I load my information into a data grid view but if the user wants to add more information or edit what is selected in the DGV I will enable some text boxes and a combobox to show the selected data. I have not issue loading from the DB into the text boxes but the combo box has me a bit stumped. I have 3 columns in the database, periodno, start date and end date. I want to display the start and end date concatenated together. When the user selects a period and hits the button I want the dates to set a variable with the periodno that matches those dates.
View 1 RepliesI m filling values in DataGridView using following code [code]Can anybody help me to insert and retreive values from database in datagridview combobox column.
View 1 RepliesI'm having trouble filling a ComboBox from a dataset. When the program runs, the combobox has the correct number of lines, but they all appear as System.Data.DataRowView.[code]
View 1 Repliesfinally given up trying to make it work with my stored procedure.
Info:
Sql Server - 2005
Table name - venatio_company
Dim con As New SqlConnection
[code].....
Was updating a project and all of a sudden the auto-filling of a WebBrowserControl's Dropdownbox stopped working. Here is the HTML of the Input box:
[Code]....
I think it is the "onkeyup" thing that isn't getting fired properly so the dropdown list isn't updating itself... it was working fine before, and now, with no changes, it just stopped working. can someone take a look at my code and see if they spot anything? EDIT: attached an image of the dropdown box in question. as I type, it does the lookup. (using the onkeyup event). I am setting the value of the dropdown to the five digit code at run-time, trying to trigger the onkeyup event to get it to get the full line, but it won't work.
I am trying to fill a combobox using the results form a query to combine two fields (first and Last name). I cannot seam to get to the query through the table adapter. I can set the binding source and select one of the fields to fill the control but I cannot get to the query's.
View 2 RepliesI have a combobox in a form, I want to fill it with names I have stored in a database. I know I have to use the fill command, but I am not sure what code I need to use. I imagine I need to place this code in the form load event, where I wrote my code to connect to the database. Do I need to create a sql fill command, select Names From Users, then execute that command in the combo box object.
View 3 RepliesI have a form with a combobox and a textbox. The combobox is used to select a username and the textbox displays the staff No. I use the following code to populate the combobox.Private Sub DeleteUser_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
[Code]...
I tried the code below but unfortunately, all i get is a combobox with U,s,e,r,s, as each line in the items collection and not the filenames of the relevant files.
the DirGetPath("Users") Function below returns my default document and application paths and appends "Users" to the end as the relevant files are stored in that Folder.
All I get is a combo box with the items as U, s,e,r,s (i.e. Users spelled out).
I tried all of the following as alternative methods too:
System.IO.Path.GetExtension()
System.IO.Path.GetFileName()
System.IO.Path.GetFileNameWithoutExtension()
[Code]....
I want to check some values in a sql db without populating controls. I can select the row i want, but for some reason my mind then hits a blank, maybe its because its monday.I want to check a few bit fields in the row and if 1 - do something, if 0 do something else. In this case depending on which bit fields are set to what, id like to enable/disable various controls on my form.
Heres the code i got so far, but as i said then i drew a blank, and i may be going about this completely wrong:Dim SQLcon As New SqlConnection("server=DEVSERVERDEVSQL;" & _
"integrated security=sspi;database=WDA_SQL")
Dim SQLqry As New SqlCommand("SELECT * FROM Users WHERE (Username = @Username) AND (Password = @Password)", SQLcon)
SQLqry.Parameters.AddWithValue("@Username", UsernameTSlbl.Text)
[Code]...
I have 1 Table Called "Menu" there are some textboxes and a combobox. I want to fill data in the Textbox called "Menu_Rate" on Selection of combobox selected item & coressponding rate of the Menu shoud be displayed in the textbox.
This is my Code
con.ConnectionString = "Data Source=localhost;Integrated Security=true;Initial Catalog=Restaurant"
cmd.CommandText = "select Menu_Rate from Menu where Menu_Name='" & cbMenu.SelectedItem & "'"
[Code].....
Trying to do a mysql parametrized query and i'm having a little issue.
cmd = conn.CreateCommand
cmd.CommandText = "insert into `rootforest` (rootforestname, BusinessName) VALUES (?rfname, ?bname)"
[Code]....
It errors on the executenonquery. Says the column rootforestname can not be null. i don't under stand why it does not fill in the value in the command text.
I have a personalized webbrowser in VB 2005. It fills values into a form and submits the form.
The first page is "login.php", the next page is "home.php"
SendKeys.SendWait("{TAB}")
SendKeys.SendWait("{TAB}")
SendKeys.SendWait("username")
SendKeys.SendWait("{TAB}")
SendKeys.SendWait("password")
SendKeys.SendWait("{Enter}")
I want it to do something else based on the url after the form is submitted.
I am designing a form to Enter new City Name list where i accept following fields
CityName, District, State, Country, Pin.
because a State names and Country names can be retrived from earlier entries, i want to allow user to select desired name from a list in combo box or a list in Auto Complete Custom Source for text box, to do this i have added a Table Adapter to underlying DataSet having Query "SELECT DISTICT STATE FROM CITY ORDER BY STATE".
Now, how do i use this Table Adapter to fill the ComboBox List without binding
And also Custom Source List for TextBox.
I am making my first windows forms application in VS2010 and I am having trouble with arrays. I have code that dim's an array 'TabSiteInfo(2,20)' as a string. Then, I have a Loop that adds records to the array. The problem is that my array is not filling values from the loop. I know VS2010 handles arrays differently, but I have this same code working fine for me in VS2008 ASP.NET application. Below is a sample of the code.
[Code]...
i have a combo box that i'm trying to fill from a database, managed to get it working through the wizard and the form view method but could do the next bit that way. I then started to try it the coded way, got the database linked but it only shows the first name in the database, how do i get it to show all the names in the database?
this is the code for the form
Imports System.Data.OleDb
Public Class NewTicket
Dim ds As New DataSet
[Code]....
What I'm working on is a video rental project in visual basic 2008. I have a local database which contains info on DVDs, Members and a table for current rentals.The columns i have in the current rentals table are:
MemberID | DVDID | DaysOnRent | DateRented | DueDate | Overdue | TotalPrice
I have this data displayed in a datagridview, but the user adds it through a seperate form (called add a rental) with a 'details' view of the table on it. I've written code to automatically determine the TotalPrice and DueDate of the DVD in the add a rental form.
The Problem:I don't know how to get the database to automatically detect when a DVD is overdue (when todays date is greater than the DueDate).I want it to check it in the column "Overdue" (which is boolean)..so basically what I'm asking is how do i update the overdue column automatically depending on whats in the DueDate?
I'm new to databases and am working on a database program. It was written in vb6 and im trying to rewrite it in vb.net. I've completely stripped the program down from all the unneeded fancy addons and now just have the needed code to run it.
[code]...
I have a dataset in my application that I fill using tableadapters like this:
Class Form1:
sub new()
Database = new Database
end sub
Class Database:
sub new()
tblLalalalaTableAdapter.Fill(DataSet.tblLalalala)
end sub
I am told it is too early to call the tableadapter.fill method inside the constructor. If the database is unavailable now, the application won't even start. It will just kinda crash. What is the proper way to do this? When should I call the tableadapter.fill methods?
I have filled a DVG with information and added another column to index(8) pragmatically Now i want to create a combobox with values depending on values in other cells on the same row so each row will have a combo box with different selections. below i have placed the code and hoped someone would have some input on how to approach this. i have tried datagridviewcolumn but that fills every row with the same information regaurdless of a if statement
[Code]...
how can i add records from list view to database ex. im going to have a transaction i will add products as many as i ordered in my listview and then i insert it into my database with the 1 transaction number it should be like this:
[code]...
Here i have code filling a drop down box with the company name.
Private Sub Filllistcomp()
listcomp.Items.Clear()
'define select statement
[CODE]...
This part works. The drop down menu is filled with all the company names. The following part does not work how ever.
Protected Sub listcomp_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles listcomp.SelectedIndexChanged
'create the select statment that serches for a record
[CODE]...
There is no error thrown either. The information is just not showing up.
I am building VB.NET application that takes data from text files that are exported from a legacy DOS program. These are written to a datatable and displayed in a datagridview. Right now my code simply loops through the datagridview and inserts the data into the database (SQL Server). There is a requirement now that the client number must be checked before the insert to see if it exists in the database. If it does, then the value of one field (tax rate) is checked against the value of the field in the datagridview. If there is a difference, then the rate is to be updated in the database and the data that was in the database is to be written to a history table for audit purposes. If the client number is not there, then we are to do the insert (which is already written). I want to know what is the most elegant and efficient solution for this problem.
I need to compare what is in the database table with what is in the datagridview, update the history table for records that exist, and then insert new records.
I am using a Class_SQL that gets the table, creates the DataAdapter and DataTable.I have a combobox named cboFullname. I can fill the combobox with data from the database, ie: Dim sqlcmdtext As String = "SELECT *, Firstname + ' ' + Surname AS Fullname From Contacts". I can display full records in a datagridview.
I would like to be able to select a name from the combobox and have the record text boxes display the data and be changed with the cbofullname index changed subroutine. Here is my current code to date:
Public Class frmMain Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
I got a problem I need to search by First Name OR Surname. So the user can enter one or the other or BOTH.
So here's what I got I set two primary keys to try and find the row but I'm gettin all sorts of problems, for example when I set FirstName & Surname as primary key which you need to do to use the find method i get an error as it expects two values..
Dim da As New SqlDataAdapter
Dim con As New SqlConnection("Data Source=UserSQLEXPRESS;Initial Catalog=StudentTeacherDB;Integrated Security=True")
[Code]....
I am filling a datagridview with multiple columns from my oracle database. It has become necessary that I add a column with a checkbox. I figured this out.
[Code]...
