VS 2010 : Populate Combobox From An Array?
May 24, 2010
The below code is a sample code that is supposed to display the months in a combobox.
Dim months() As String = _
{"Select a month...",
"January", "February", "March"}
[code]....
But what am I supposed to do with this code? I have created and named the combobox "cboExpirationMonth", but where do I put this code? I tried to put it as a click event of the combobox, but that doesn't work. I created a button and tried to put the code in the button's click event, but that still doesn't populate the combobox.
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Dec 8, 2010
It's a simple 3-Tier Structure Windows Form Application using Visual Basics 2008 express edition. I need to populate a ComboBox (User Interface Layer) using an Array with only 3 names (Data Access Layer and Business Logic Layer). I think I'm close to it but I'm unable to pass the data from the DAL all the way to the UI properly. When I run the application, My ComboBox gives me choices but the three choices are
[Code]....
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Feb 15, 2011
In this windows forms app, I have a form with six comboboxes. Two are parents, one with a single child and the other with three children. All of these work beautifully except for one of the children. The code for each one is identical, and I've verified the query against the database a dozen times. I even have another of the children that is in the very same block of code. One works beautifully, the other one refuses to populate any data. Below is the code for the one that doesn't work. I would tell you on what line the error occurs, but it doesn't throw any errors. Try catches show nothing, and I have VS 2010 set to throw all errors, but I get nothing, just an empty combo box where there should be a list of names.
Public Class errorTracking_submit
Dim ConnectionString = "Data Source=dvmx6030MS2005_DEV1, 2755; user id =CRCUser;password=TWC5uck5;database=CRCTools;Connection Timeout=5"
[code]....
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Aug 21, 2009
Dim file_name As String = "players.txt"
Dim strReadLine As String
Dim sr_readfile As New StreamReader(file_name)
[code].....
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Jan 24, 2012
I have a form with a textbox that holds data relating to job priority. txtPriority.Text = "Low" or "High" I have an amend button on the form that when clicked displays a cmbPriority object with a list that has "Low" and "High" in the list. When I click the amend button I want to the cmbPriority.SelectedText to = whatever is in txtPriority.Text. The item in the field will always be in the list. I have my combo box set to cmbPriority.Dropdownliststyle = DropDownList.
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Jan 27, 2011
I need to pull from an access database to populate a combobox. Then from there I need to have a second combo box populated depending on the selection in the first box. My thought of an example would be a website that is setup for selecting car make, modle,year...can that be done in VB?
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Dec 8, 2011
this code links to the access database but but I just get only the first row in each combobox...
and I want also cboBox3 depend from cboBox2 depends from cboBox1, how can I do it?
Imports System.Data
Imports System.Data.OleDb
Public Class frm
Dim objConnection As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source = DBSOURCEDB.mdb;Jet OLEDB:Database Password=pass;")
[Code]...
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Nov 29, 2011
Visual Basic 2010 Express: I have a form with a combobox that is populated with the names of locations from a datagrid which in turn was imported at run-time (Form_Load) from an Excel database. The Excel database (and the datagrid) also stores the information for addresses and phone numbers for their respective locations.
What I would like to do is have the phone number and address text boxes automatically be updated with the proper corresponding data when the user selects a location from the combobox. Whether the text boxes are updated from the datagrid or Excel database is not a concern; I'm mainly looking for whichever way is simpler.
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Jul 29, 2011
I have two ComboBoxes
<ComboBox Name="cmbMake" DisplayMemberPath="MakeName" SelectedValuePath="MakeID"/>
<ComboBox Name="cmbModel" DisplayMemberPath="ModelName"/>
I use LINQ-to-Entities to populate the cmbGroup ComboBox
Dim db as myDataEntity
cmbGroup.ItemsSource = db.Makes
How do I populate my second ComboBox (cmbModels) based on the selection of the first ComboBox (cmbMake) using XAML so that whatever I select in the first ComboBox automatically filters the ItemsSource in the second ComboBox?
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Dec 23, 2011
The problem is when I run/debug my program in Visual Studio 2010, I have a comboBox/dropdown menu which allows the user to select from 3 combinations of years and interest rates. I can select and get output from choices 2 and 3 but not choice 1. Choice 1 being 7 years at 5.35%.
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Feb 23, 2012
I have an array of comboboxes on a form. They are declared at the beginning. I wish to make these global variables so I can access them in another form. This does not appear to work.
Code something like this:
Public Class SecondScreen
Public OutputSelectControl() As Combobox = {O1, O2, O3, O4}
Where O1 O2 etc are the names of my comboboxes on this form. I wish to be able to address them from another form like so
localformvariablehere = OutputSelectControl(integervariablehere).Index
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Jan 1, 2012
I currently have a form with two comboxes. The first cbo is being populated with a project number, which is being pulled from the first column of a spreadsheet. I now want the second cbo to read the first cbo and then find that project number on the spreadsheet; when it finds that project number, I then need it to copy data from the row the project number is on. I have converted to vb from vba. Below is the code I used in vba (which obviously does not work). I only need certain cells from the project row.
Dim proj_num, rng As Range
Dim data, i As Long, j As Long
With Sheet1
[code].....
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Jul 23, 2009
I select first value from a combobox1 but combobox2 was not populated corresponding to value selected from first one. Again I select same value now combobox was populated
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Apr 20, 2010
I am trying to display an ID which is a primary key in my table by selecting the corresponding name in my table. the names have been saved in a combo box and depending on the name selected the textbox will display that Id. the code I have so far only gets the names from sql server but doesnt show the corresponding id in the textbox. I have been searching and cant find anything similar to this.
this is the code for combobox. i placed it in the formload
[Code]...
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Jun 21, 2010
I am trying to display an ID which is a primary key in my table by selecting the corresponding name in my table. the names have been saved in a combo box and depending on the name selected the textbox will display that Id. the code I have so far only gets the names from sql server but doesnt show the id in the textbox.
this is the code for combobox. i placed it in the formload
Public Sub RtnCmbVal()
Dim conn As SqlConnection
Dim str As String = "select ConsultantId, FullName from Derma_Consultants"
[Code].....
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Jan 12, 2010
I can understand since .ini files are pretty outdated, but I'll explain. I have a combo box, and inside the combobox I want it to display the names in a section of the .ini file. So say my .ini file contains the following:
[SECTION1]
Name = Billy
Lastname = Bob
Inside the combobox I wan't it to display the items "Name ", and "Lastname " only, not the section or the values.
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Jan 21, 2009
I want to populate a combo box but not using a database
e.g. combobox displays
red
white
blue
But want I want is if a person chooses red I want to pass back the number 1 value to a backend database. I'm able to populate a combo box with the colours but not sure how i 'grab' the value to pass back
Dim colours as string[] = new string[] { "red", "white", "blue" }
m_cmbColours.Items.AddRange(colours)
What I want is this
value Colour
1 red
2 white
3 blue
Combobox just displays the colours and when chosen in the combo box I grab the value corresponding to colour chosen.
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Dec 13, 2010
How do i populate my state combobox,such that when i select the appropriate country my combobox will automatically display the appropriate state?
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May 24, 2011
I want to have a combobox, but I have two fields from my Access table that I want to display in my Combobox. I want to show the entire row in the combobox. Do I need use an asterisk at the line for adding items to the combobox? [code]...
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Nov 16, 2007
I am a beginner in VB.Net. I have a table tblName; which consist of columns 'Name' and 'ID'. I want to populate the comboBox, where displaymember = 'Name' and ValueMember = 'ID'. In short, when a user selects a 'Name', return value should be the 'ID'. I can do it using DataAdapter. Another way of doing is; using a Listbox in parralel with the comboBox, which will be hidden, to save the 'ID' .
[Code]...
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Feb 26, 2012
I'm using Visual Basic 2010 and i need to populate 1 combobox with a txt file.
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Aug 31, 2011
I have a combobox wich I want to populate based on the value of another combobox.[code
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Nov 15, 2011
I have achieve to populate my combobox from sql and from this combobox to populate a textbox but now I have to do something more complicated.I would like to populate a combobox from an other combobox choice. And what i mean is that I have a table with Streenames and Postcodes. What I want to do is fistly to choose the Streetname from the one combobox and the interface to appear the Postcodes to the second combobox. Secondly, the postcode combobox should appear more than one postcodes because it is probable that the same streetname maybe belongs to more than one region(postcode).
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Jun 22, 2010
I need to populate all the values of a specific column in each rows of my table from my database. The specific column that i need is the "position",I'm using sqldatareader here's my code. I know that I need to use looping statements and the items.add properties of the combobox but I dont know how will I do it..hope you help me here..
Private Sub cboPosition_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboPosition.Click
scmd = New SqlCommand("SELECT KPIPOSTCODE FROM KKPIPOSITION", sqlcon)
sqlcon.Open()
scmd.CommandType = CommandType.Text
[code].....
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Mar 8, 2012
I am using datagrid in one of my winform in which there is one column which has combobox cell type.I want to populate this combobox by data from table present in database.Tell me the shortest possible way to achieve this.
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Dec 13, 2011
How to pupolate the Combobox in VB.Net, the items are from DataSet.[code]...
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Aug 27, 2009
[code]...
this code is populating records instead of the Fieldname.
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Dec 24, 2011
[code]....
Not sure how to do it with an unbound number of players names and combobox's.
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Jul 4, 2011
I Have the following:
[Code]...
"Warning: Variable 'PDU_messages' is used before it has been assigned a value. A null reference exception could result at runtime." and then on running, Object reference not set to an instance of an object.
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Sep 17, 2009
I am trying to populate a combobox using the following code.
CODE:
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