So im trying to fill a combo box with data from a database but depending on how much a pregressbar is filled THis is what im trying:
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Form1.ProgressBar9.Value <= 10 Then
Me.Level1TableAdapter.Fill(Me.CTDBDataSet1.Level1)
[code]....
I have 2 comboboxes. When I choose a country in cboLand I want only the states to show in cboStaat that are associated with the country from cboLand. I tried the code below but I get all different error messages. Perhaps you can see something in my code that I missed.
[Code]...
Is it possible to fill a Combo Box with the names of the fields of a table(from a database)?
View 6 RepliesI'm fairly new to visual basic and have a problem that is probably quite easy to solve yet I have been unable to do it so far and am about at wits end.I have an access database with a table that contains a list of cities and states. what i would like to do is to populate a combo box on a vb form with a list of the states in the states column. the query that i have is as follows:
SELECT DISTINCT State from Cities I have previewed the data in the dataset designer and it works, i just can't figure out how to make it fill the combo box. i initially created a table with just all of the states and then used a binding source and table adapter to bind it to the combo box, but if I'm able to figure this out this would help with my application going forward
Its my Code
CODE:
The problem is TextBox fill Successfully but String can not be filled. it shows empty.
Code:
Sub laad_leden()
Dim myConnection As New connectdb
Dim tabel As New DataTable
[CODE]...
While loading the data to the program the window freezes. It shows the progressbar but the progressbar is also freezing. How can i let the progressbar marquee while loading / freezing.
Sub laad_leden()
Dim myConnection As New connectdb
Dim tabel As New DataTable[code]....
While loading the data to the program the window freezes. It shows the progressbar but the progressbar is also freezing.How can i let the progressbar marquee while loading / freezing.
how to load data into datagridview using backgroundworker & progressbar?Let's say i have a report that shows some statistics, or has 100 000 of rows that should be displayed and during the load i would like to show the data that is already loaded and not to frees the form.Same example like in SQL when you perform a select command from a table which has 100 000 of rows and while loading the data, the grid is already filled up and progressbar is shown at the left buttom side.
View 7 Replieswhat do i need for the progressbar to fill when the webrowser is completed.[code]
View 1 RepliesI have 2 combo boxes. One is in a form called subcat_selector.vb
on the button Pick Sub Catagory.click event it shows the subcat_selector form. form there, the onload event:
Dim button As DialogResult
[Code].....
I am using VBNET2008 to develop a Application using FORM and the Logic using FOR LOOP. Within FOR LOOP logic to fill the Form TextBox from DataSet and also to Fill ProgressBar Progress. Apparently Within the FOR LOOP the FORM TextBox and ProgressBar1 is not filled.
Here are the overall Coding
Private Sub FCountTotalOrderID()
'--- retrieve OrderID Row count from Table ---
Dim strsql As String
[Code].....
I have a web page that I need to log in, the first page is not a problem I can log in as it only has the company name to enter, but from here is where I have problems, as when the first page is done, I am directed to a second page with two fields that has to be filled, filename and author, then depending on the action you have to click on in button,out,button delay button, here is where I need help, how do I fill the second page fields and how to chose the right button depending the action to take.
View 9 RepliesFor my project i want to i want to export form data to a new database so that i can send it by attaching it to email.
what i want that on click of a button
1) create .mdb file at c:est*.mdb, with the name = "textbox1.text"
2) create table, name = "demo" with column "id" and "job No"
and then i can use insert command to fill the data in the table and email it to client.
I am unable to fill data in the OleDbDataAdapter I get an OleDbException with the following message Syntax error in FROM clause.at this line adapter.Fill(dataset, "User")
Here is the code
Imports System.Data.OleDb
Public Class Form1
Public connection As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:MyDatabase.mdb;Persist Security Info=False")
[code]....
and also I have tried
Dim adapter As New OleDbDataAdapter
adapter.SelectCommand = New OleDbCommand("select * from user;", connection)
Dim dataset As New DataSet
adapter.Fill(dataset)
But I get the same exception Syntax error in FROM clause
I am trying to write codes for new user to fill in the form, then the new data will add into my database.
Below are my codes:
Imports System.Data.OleDb
Public Class NewUser
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
[Code] .....
There is no error encountered, however, the adding is failed and no new data can be add in.
I am trying to fill a datagridview with data from a SQL database.The dgv will print rows and values where each row is a different category.
[VB CODE] Private Sub populatedgv1()
'setup temptable to store Server data
Dim m_table As New DataTable
[code]....
Why does it only print all the rows for each DS (different sizes/colors) only if there are more then one DS? (if there is only 1 DS it will only print one row, regardless of different colors/sizes but if there is 2 DS, it will print all the values from the first DS)I have gotten a massive headache from trying to figure out these 2 problems. If any1 can help I would be very grateful. Please let me know if you need anymore info (SQL tables, data), and I'll put them up.
I am trying this..
Imports System.Data.OleDb
Public Class Form1
Dim conn As OleDbConnection
Dim cmd As OleDbCommand
[code]....
I get an error: object reference not set to an instance of an object
can someone please give me basic steps on how to hard code a combo box to display a column from a database?
View 21 RepliesVisual Basic 2008 I want to put data in combo box from MySQL database.
View 19 RepliesI'm doing a project in vb.net back-end is MSACCESS...
I don't know how to store data from COMBO BOX and to RETRIVE data from database to COMBO BOX.[code]...
how i can connect to an access database and fill a combox with data of a column?
View 1 Replieshow to fill List View and Data Grid from a Database (SQL Server).
View 4 Repliesi try to bind database to combo box but having (Object reference not set to an instance of an object) error during the running.
i am newbie in vb. and i facing a problem in database update into the access database. well, because of my windows have combobox and textbox. i dont have any difficulty in textbox update into access database, but i face a difficulty in combobox. and my combobox have 2 item in it. anyone can teach me? anyone can provide me some coding example and detail examplation. because i am the type who look through the coding and learn form it.
View 5 RepliesI'm working with a form that has five combo boxs, when the form loads it goes to the modQuotations where there is a public sub that loads the comboboxs with data from a database but it after its done loading the form there is nothing in the combo boxs. [code]..
View 8 RepliesI am using VB 2008 Express to connect to an Access 2007 database. I have a combo box that is populated by the database. When I used the Access report VBA, I used the AfterUpdate() event to calculate a sum and place the results in a text box. I need to know how to do the same operation in VB 2008 Express using the SelectedIndexChanged event of the combo box.
The combo box is called "cboYearMonth" and is populated by my database, this is working correctly.
The text box that I want the calculated results to appear in is called "ExactPagesTextbox"
I have a query in Access called "JobTypeExact_Query" that contains all the pages that I need. What I need to do is calculate the total number of "Pages" limited to the YEARMONTH selected in the combo box. YEARMONTH is a value in every record in this query.
I have created a link using VS2008 and MS Access 2007.In my database, assume that I have ID, First Name, Last Name, Gender
------------------------
1 John Smith Male
2 Michael Jackson Male
3 Alicia Keys Female
------------------------
These are the data I have in my database.In my form, assume that I have
ID [Combo Box]
First Name [Text Box]
Last Name [Text Box]
Gender [Text Box]
Now, I have 3 ID in my combo box. If I choose [1] in my combo box, I want the rest of my test box show [John] [Smith] [Male].When I choose [2] in my combo box again, it will show [Michael] [Jackson] [Male].
I am trying to fill a combo box from SQL Server 2008. Getting the Combo Box to populate isn't the problem. What I need to do is have the text field read the field value that goes with a specific id that I search by, while keeping all other fields available to chose from to change the value for that specific id and save back to the database. I know this isn't clear here is the best example I can think of:
COMBOBOX --FieldValue------->
--DropDownField1--> Ten
--DropDownField2--> Twenty
[Code].....
I seriously might have to infest in some Rogaine if I have to spend another ten minutes on this. I do know that I am missing an id to compare to but when I add the id into the sql statement the combo box only fills with the one value that it equals to without the option to chose from the several others to change.
how can i fill two value in combo box . first one for visible and second one for backend(key column) like in vb (Item data)[code]
View 1 RepliesHow do I fill a combo box at run time and set the selected value as well? I'm filling the the combo box from a database.
View 11 Replies