Load Data In Combobox?
Jun 22, 2010i have an error when executing this
ExecuteReader: CommandText property has not been initialized
i have an error when executing this
ExecuteReader: CommandText property has not been initialized
Private Sub AddIngoing_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
i hve create combobox & text box and add database source to my project...i know how to binding data or load data to combobox using SELECT query..but can i change SELECT to INSERT query cz i wont when i type data into textbox,data will be in database...second..can i binding without add database to project..i mean mydatabase in debug folder..i hve problem binding data if database is not in myproject..
View 7 Repliesi create 2 combobox in form, comboproduct & combomodel. i using accessdatabase and using oledbconnection..database in debug folder... i create 1 table, i name it"stock" & 2 column.. first column is product,second model..
i wont load data in product column into comboproduct and model to combomodel..like binding data..
i using this code to load data from accessdatabase to 2 combobox
Dim cmd As OleDbCommand = New OleDbCommand("SELECT product,model FROM combo_table", conn)
conn.Open()
[Code].....
use can see in this picture hve 2 button, Product Entry and New Product..when i insert new product "Khink "automaticly Stock entry will load new data from accessdabase, but problem is if i go to form Stock Entry, old product in combobox will be double..when i close that form, and open it again, product name "Khink" will be double 2 and samsung,hitachi will be triple..
i have 2 form. form 1 have combobox and second form textbox...how to load data form textbox into combobox..if i type hitachi in text box, automatictly "hitachi" will save in dropdownlist combobox..
View 5 RepliesHow can MS-SQL Database access wise vb.net
1-How can load data to combobox from table filed?
2-How can check how meany data in the database filed.
how to load 1 column data from accessdatabase into combobox item...i mean, i have 1 table " info_table and 1 column "product..so in product column have data like nokia and sony"..i want nokia and sony to be load into combobox item or dropdownlist..
View 4 RepliesWhen the form loads I want to fill the combobox with the data present in the database. So I did the below
Private Sub BindCombo()
con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:UsersGautamDocumentsVisual Studio 2005ProjectsF1pracF1pracBank_Account.mdb")
con.Open()
cmd = New OleDbCommand("Select * from BankAccount", con)
[Code] .....
Doing this code the data is added up in the combobox dropdown list. But when I am selecting a data from the combobox dropdown list,the all the corresponding data of the other combobox also get filled automatically. I don't want to let the other combobox filled with their data automatically....
I want to load data from a txt in a combobox and a listbox. The txt is composed as follows:
ID NAME
0001,name1
0002,name2
0020,name3
[Code].....
In the combobox I want to load 'NAME " And in the listbox I want to load "ID"
I have a text file in which there is a list which is composed as follows:
3236, Alberto
5894, Peter
7894: Alonso
and so on ...
What I want is loaded into a listbox the numbers to the first semicolon and load the combobox names.
This 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]....
Whenever i start my form (window application) and link from one form to another, my data doesn't load but when i close the respective form and open it again , it appear. Can i know where is my problem ? Thx in advance. Here's the code snippet :
Private Sub AccessControl_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sqlstring As String = "select * from depttable"
Dim connection As New SqlConnection(db.cs)
Dim dataadapter As New SqlDataAdapter(sqlstring, connection)
[code]....
i have a combo box that contains persal numbers and when a persal nuber is selected or entered, it is suppose to populate the textbox for surname and initials and component description. but with the code i have i get the error:An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in system.data.dll.
[Code]...
I have the following code to populate a combobox[code]...
View 2 RepliesLoad a combobox with a selection from another?[code]....
View 2 RepliesI am trying to get files for my database and load it into comboBox. But for some reason I get systax error.. As I mention into other post I am not familliar with VB so check my code and let me know where I mess up... Here is my code:::
Public Class Form2
Dim DatabaseOpenConnection As New SqlConnection("Server=localhost;User Id=root;Password=root;Database=test")
[code]....
What is the method to not allow combobox SelectedIndexChanged to be executed on load. and only make it to be executed when a "USER" changes the selection value.
View 1 RepliesI would like to how I can load a set of values in a comboBox from a TableAdapter. I have the tableAdapter method to read the data , (in this case GetDataByStreet)--> Me.StreetsTableAdapter.GetDataByStreet()
But I don't know how to assign the sentence to the comboBox, in order to load the data set in it.
how to load a file in combobox?how to add, remove and search contents in this file? n how to use filters?
View 1 RepliesI'm making a custom scripting engine type thing. I'm trying to add an option to where you can select a list of functions from a dropdown combobox. I want it to display the "Display Names"(Keys as String) of the items in the combobox, but I want it the DisplayNames to point to the (Value as String).[code]so I want "Equals" to be displayed in the combobox, but I want "=" to be the real value.
View 1 RepliesI have a problem when trying to show details of XML file by choosing an item from Combobox. I have two XML files, called Employee.XML & Subject.XML. The format is like below
<Employee>
<EmployeeID> </EmployeeID>
<Position> </Position>
[code]....
The Combobox contains Employee and its Position also (eg: A1 - IT professor). When I choose an item in here, its Subject details will automatically show in Textbox (one EmployeeID can have many subjects). I cannot use Combobox.SelectItem because I already set Option Explicit On & Option Strict On. I also make EmployeeID by ascending coming up with its position. How can I show details in TextBox by using Subject.XML? I tried many methods but none can work properly.
I would like to how I can load a set of values in a comboBox from a TableAdapter. I have the tableAdapter method to read the data , (in this case GetDataByStreet)--> Me.StreetsTableAdapter.GetDataByStreet()
But I don't know how to assign the sentence to the comboBox, in order to load the data set in it.
I want to make it so you can type a name into an input box and have it go into your combobox1. Then also have it to where you can load a list of names into your combobox from a text file where the text in the text file would be like this
NAME 1
NAME 2
NAME 3
NAME 4
So it will enter in the combobox1 like that. Also, This is an account maker, So I was wondering how I would make it so after it creates the account it will use the next text, can I just use the "Next" method?
how do i get my code to load into a combobox and once i select an id from the combo box it then displays the next field in a textbox that goes with the combos id record?. This is the code thatg i current use to connect to the database.?
code
Imports System.Data.OleDb
Module Module1
Public myConn As New OleDbConnection
Public myCmd As New OleDbCommand
[code]....
I'm creating a dynamic combo box and adding to a form. I'm trying to fill the combo box with a DataSource from an ArrayList and then selecting an item in the combo box based off a value from a property.Problem is, the combo box items don't get bound until after the Form_Load event has finished and the form is visible. So the combo box is empty when I try to set the selected index of the combo box. See code for what I'm doing in detail, and refer to comments in
[code]...
How to select the right selected index for combo box without a hack (Load timer or something stupid like that)?
I want to create a combobox like winform control in VB.Net that makes suggestions dynamically; exactly as the address bar does in Google Chrome or IE 8/9. Basically on each keypress, get a list of items that match the entered text on a background thread(s) and show these items in the dropdown list as they are (possibly slowly) returned - either from DB queries, web services etc.
I have tried a couple of ideas, changing the AutoComplete list dynamically or binding to a list, which I then update. But I am getting some rather odd and incorrect results even when updating the list directly (on the main thread). I also tried implementing my own textbox control that shows a ListBox control where the dropdown would appear - this seemed a lot more reliable but I cannot get it to draw over the edge of forms etc when shown, as the combobox drop-down does.
I have the following combobox items:
[Code]...
how to correct my code.It seem dont have error but it only able to load 1 picture only.In my code here i am using combobox to load a image into Picturebox. I got 3 item in combo box and 3 image which need to load in picturebox.
Private Sub CBpayment_SelectedIndexChanged(ByVal sender As ystem.Object, ByVal e As System.EventArgs) Handles CBpayment.SelectedIndexChanged
PBOffice2.Image = My.Resources.dollar_us
[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 Replies