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?
View 3 Replies
Using Visual Basics Express 2008, I am trying to add items to a combo box FROM column headers in a datagrid in a separate form. I have written the code to create the datagrid from an external file but can not get the headers of that datagrid to populate the combo box in a separate form.
Here is my working code for Form1 (frmMain):
Private Sub cmdConvertTxt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPart.Click
Dim dt As New DataTable
[Code].....
i wanted to link options selected from Comb box A (general) to specific options in combo box B (specific). I want to pick a word in Combo box A that has specific words/phrases in Combo Box B show. But not all the words to show in the combo box B if they aren't associated with the Word picked in Combo Box A. Ex.When "Soda" is picked in A, only "Coke, Sprite, Fanta" should be visible in combo box b, not everything else.This is the code i used to make the boxes, but i don't know how to link them.
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' fills the combo boxes with values
Me.xGeneralComboBox.Items.Add("Soda")
Me.xGeneralComboBox.Items.Add("Juice")
[code]....
How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
[Code]...
I am getting an error when i try to populate some combo boxes with a value, the combo box has values in and the right amount the code is getting the right number.
the error msg is "Object reference not set to an instance of an object."
Combo box 2 is filled based on a selection made in combo box 1 and a listview is populated based on the selection made in combo box 2.When the LostFocus event completes in combo box 1, it hits the LostFocus event in Combo Box 2 but it shouldn't. How do I prevent this from happening or if I can't prevent it, how do I work around it? The following is the code used.
Private Sub cboCategory_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboCategory.LostFocus
[code].....
I've got some code like the following. I want it so that when I chose an item in 'select 1' it changes the in the second combo box but I'm not sure of the best way to go about it. Does it have to be AJax or can it be done with just Javascript?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[code].....
I have a Datagridview with a database attached , but I want to search the the collums by picking the collum I want from a combobox, writing in a textbox and pushing a button and the arrow in the database will move to the row if anything is found, BUT I don't know how to add the collums from the database to the combobox and do the search using the button.
View 3 RepliesI created a filter for a datagrid using a combo box, but every time I select an item from the combo box and there is no data for that filter I get the following pop-up error during debugging:Index -1 does not have a value.Here is the code that I am using:
1 Private Sub RYAN3estimatesBindingSource_CurrentChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RYAN3estimatesBindingSource.CurrentChanged
[Code]...
I need some advice I have a bound datagrid and a bound combobox lookup on a form. What i want to do is filter the combo box so it only shows the items left that are not in the datagrid already.
I have managed to achieve this already.But when the program runs, and there are items displayed in the data grid the combo box items are now filtered.The program crashes as it can't display the combobox item as i have filtered them out. The program runs fine if the datagrid is empty (IE combobox items not filtered). But as soon as there is a record in the datagrid when i save the database and refresh the combo box the program falls over is the items it is looking for is not in the combo box items list.
What would a work around be. I have thought of a separate combo box that is hidden and use the datagrid combobox events to show it in the correct position.Just to be tedious the displayed item is not the stored item value
I've got this question while i'm searching the web for my problem.It's the same as mine ..I have a datagrid of three columns;
1. Comb-box1 : Employees' Names (DataSource : EmployeeBindingSource)
2. Comb-box2 : Coming Departure. (DataSource : DepartureBindingSource)
3. Text-box : ...............
* How can I filter or re-bind the source of the second one as the first one value changed (Both are in the same datagrid).>> So as I select an Employee I need the second one gives me just the specific departures of the desired employee.Where I have the (Employee_No) field connect the two tables related to each one.
I would like to implement a code which executes what a user selects from the combobox and display related data from the access database on the datagrid.I have managed to connect to my database.How do I connect the combo box action to display information on the datagrid?elow is a code that am using to read the contents of my table from the database and display it on the datagrid.
cnString = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source=C:UsersHomeDocumentsIADCS PROJECTS 2011SAD PROJECT 2011StockControl.mdb"
sqlQRY = "SELECT * FROM Category"
[code].....
is there a way to set a single cell as a combo box? it looks to me that you can only set the whole column.
View 5 Replieshow do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box. i have this code for now but it does not work
[Code]...
the code for adding items in the combo box but without duplicates. i have an assignment which is a simple web browser. the combo box will be the address bar. and everytime i input an address, it will be added in combo box and should not repeat just like in the browsers
View 3 Repliesi want to add items on the combo box by coding it and if you click the dropdown arrow it would show the items i want to select?
View 4 RepliesHow to add links to combo box's items...... Like when the form is loaded, the items are already there. If you select one it will take you to a website....And how do you make it so the items in the combo box are (PERMANENT) AND dont erase..
View 3 Replieshow can i add items in combo box from datasource.I m using ADODC.
View 4 RepliesI have a combo box in my vb.net webbrowser when during a particular session the cobo box displays the all pages visited when the form is closed all vanishes[code]...
View 2 RepliesI have a combobox with a list of items in it. Now when the user enters a character I want the combox show the list of items that starts with the specified character.
View 7 RepliesMy download manager records the history of your downloads, The problem is that I can't seem to find a code to save the Items in that combo box in a txt file.
I tried this but did not work:
SaveFileDialog1.ShowDialog(ComboBox1.Items)
How do you save items in a combo box?
View 8 RepliesSo I've looked at some of the posts on updating the combo box and none of the methods seem to work for me.
I have two forms I will refer to as Parent, Child. The Parent form contains a combo box of Business names from my database. The Child form adds a Business to my database. After I exit the Child form I want the combo box on the Parent form to update with the new business.
Also I created the combo box by click-dragging the Business table from my Data Sources window to my form.
I have a problem trying to link my my datagrid view to my sql server stored procedure. The way it should work is that when I select an item in a list from my combo box it returns a set of rows on the datagrid view specific only to that item This is the code on the server sideCREATE PROCEDURE spCompanySearch
[Code]...
The @comp is supposed to be each item in the combobox list but I don't know how to do it or how to go about it
I am a new one to vb 2005 and I have no idea to get the datagrid filter view option.I developed a new program which have an datagrid view.I want to filter the data based on the 3 thingsthe first one is the "dates between start and end with 2 datetimepicker controlhe Second one is 2 of the filter combo boxes.For ex: it should filter the data between the two datetimepicker
View 4 RepliesI have a datagridview with a combobox coloumn. A few items have veen added to it. (Say Furniture, Property etc.).I wish when I select Property, the column 2 of my current row should get text Property.Which event to be fired for this. I tried _CellValueChanged etc. but that did not work.
View 2 RepliesOk what I have is a combo box with a set of default items but i want the user to be able add new items to the combo box's item list. i currently have a text box and a command button for the user to use to add new items to the list with this code attached
ComboBox1.Items.Add(TextBox1.Text)
when the program is closed the item is no longer in the combo box items list.
so what i would like to know is the correct code to make the additions to the combo box's items list permanent or at least until the user chooses to remove them.
how do i get items in combo box to appear in a list box
View 1 RepliesHow to store all items of database to combo box.
i.e. store complete column in combo box?
i need to transfer the selected items from various combo boxes into a particular frame or a label...
View 2 Replies
