Fill Another Combobox Depending On The Value Selected From First Combobox?
Aug 19, 2009How to fill another combobox depending on the value selected from first combobox?
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Fill Combobox Depending On Value Of Other Combo
Feb 27, 2010I 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]...
Choose A Value Dynamically From ComboBox Depending Of The Values Selected Previously In Two ComboBoxes?
Mar 29, 2010I want to choose a value dynamically from comboBox depending of the values selected previously in two comboBoxes.the code that loads the comboBoxes:
Private Sub LightClassComboBox_DropDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles AreaClasificationComboBox.DropDown
TrafficDensityComboBox.DropDown,.....
[code]....
The problem is that in the last Sub in the If sentence gives an error of: Null Reference Exception, because the compiler thinks that in that event the data are not loaded, although the data are loaded when loadcomboBoxes sub is executed.
Fill A ComboBox On The Selection Change From Second ComboBox?
Jan 15, 2012I have two comboBoxes, one is CountryCombo and second is StateCombo.What I want is the that when i the clicks country combo and select a one country then the States of that the country should get populated in the State Combo.I have tried things many many many but nothing working. Below is my code of how my CountryCombo is getting filled.
query="select CountryName from CountryMaster"
if dr.hasRows()
{[code]......
Remove An Entry From ComboBox When It Is Selected In Another ComboBox?
Nov 21, 2011In my VB.net solution I have a form in which I have to choose a beginstation and an endstation. I have to select both from comboboxes. Now what I want is that when I choose a beginstation, the chosen station will be gone in the combobox of the endstation so that I can't pick the same endstation as the beginstation.Is there a way to do this? I've tried a lot with SQL and LINQ queries but it didn't work out :(
View 1 RepliesPopulate Combobox Depending On Other?
Nov 15, 2011I 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).
View 4 RepliesFilling Textbox Depending On Combobox Selection?
Feb 11, 2012I 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]...
Retrieve Data From DB Depending On Combobox Selection?
Jul 18, 2012i have a DB table and a form the following fields , combobox and textboxes, what i need is how to write a query to retrieve data from the table when the user select some record from combobox
View 7 RepliesSet A Default Value In A Combobox Depending On Result From A Dataset?
Jun 6, 2012I have a small section of a windows form that allows users to select when a customer should be called (i.e. day of the week, time and inbound or outbound)When the form is loaded I will extract the information using a dataset and bind to form controls. I want to use a combo box for call stautus - inbound or outbound - however wish to give the user the choice at runtime.My thoughts are I would need to set a static list (so the user could choose) and set the default or displayed value to the info the dataset has extracted.This code to select the index doesnt work when I am comparing the dataset result to the "Outbound" string even though I am using the ToString method.
Private Sub TestTelesalesForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.Telesales_DEV004016TableAdapter1.Fill(TelesalesDataset1.Telesales_DEV004016)
Me.comboCallStatus.Items.Add("Outbound")
[code]....
Databound Combobox Doesn't Update Properly Depending On Input Meth
Feb 10, 2011I've already found evidence of another having this problem. You can see this on this post by someone else:
http:groups.google...096b3fcaa?pli=1
The problem is that when one navigates the combobox via the keyboard, the combobox's information doesn't update. If you click a value with your mouse, though, everything works wonderfully. The link I've mentioned suggests changing the binding from the Text property to the SelectedItem property. I'm very deep into this project and it would be a bit of a nuisance to change the setup so as to allow it to be bound to the SelectedItem property.What I'm wondering is whether or not I can detect the user changing the selected entry in the combobox and tell VB that they "clicked" the value, if that makes any sense.
Fill A Combobox In A Website?
Jan 5, 2012I want to fill the both combobox in this website [URL]
I can fill the main category but I cannot fill the subcategory, I already tried but I cannot.
How To Fill Textbox By Combobox
May 20, 2012I would like to fill a textbox with my selected text in combobox. Could you tel me which code I have to add to following code? [Code]
View 3 RepliesCombobox Fill From Access Error
Oct 21, 2009Okay so i have set up a database connection and got my combo box to fill from my table but it only fills with the first 4 records even though there are 5. There will be even more records depending on how many bookings are made so i need it to fill with all the records [code]...
View 3 RepliesFill A Combobox With Data From A Xml File?
Sep 25, 2009I am trying to fill a combobox with data from an xml file. I have it setup on form load to call a loadXMLdata function. In the loadXMLdata function it reads the xml file. I would like to know how I would return each of the elements to populate the combobox. I have mostly done php work and in php i could do an array like this: array[book] = "VB.Net Programming". Is there a way to do something like this with an array such as xmlData("Server 1") = "255.255.255.255"
HTML
<config>
<connection>
<servers>
[Code]...
I know there are some things missing in my code like setting the counter integer.
Fill A Combobox With Values From A Datatable?
Feb 13, 2009I want to fill a combobox with the values that I have in a datatable. How can I do that? Below is the code for the population of the datatable:
[Code]...
Fill ComboBox From Table In Access
Aug 6, 2010I am creating a form for entering technical data about a part into an Access database. In the same form I have several ComboBoxs that need to have their lists filled from the same reference table in my database. I have a number and unit field for the twist and bending radius properties. I made the unit fields ComboBoxes and I am trying to bind them to referance table in my database called UnitsLength. The relevant structure is as follows....
Form: NewPartForm
Database: CableDataSet
Main Table: PartMechanical - with fields: TwistNom, TwistUnits, BendingRadiusNom, BendingRadiusUnits
Reference Table: UnitsLength - with fields: Unit, Shorthand, Conversion Factor
First tired the following settings....
Data Source: Other Data Sources > NewPartForm List Instances > CableDatase
Display Member: UnitsLength.Shorthand
Value Member: UnitsLength.Unit
SelectedValue: PartMechanicalBindingSource > [The associated unit field]
But the lists didn't populate.... Then I tried these settings
Data Source: UnitsLengthBindingSource
Display Member: Shorthand
Value Member: Unit
SelectedValue: PartMechanicalBindingSource > [The associated unit field]
But now every ComboBox displays the same value but still stores the data in the proper field... it just sets them all the same.
Fill Combobox With Database Query?
Apr 28, 2010I am having a problem with filling a combobox with unique values.Im not very good at vb either so I will explain what I have done so far.
1. I added a combobox to my form called Combobox1
2. I clicked the little triangle widget thing on the ComboBox1 set the dataset to MyDATASETDataSet1
3. Display Member: CurrencyCountry, Value Member: FCode, Selected Value = None
4. I fill MyDATASETDataSet1 when the form loads using:
PricesTableAdapter.ComboBoxQuery(CurrencY_DATABASEDataSet1.Prices)
ComboBoxQuery =
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]
The form does not load, i get the error: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.If I replace ComboQuery with Fill Query (which is the default fill command) it displays results....but not unique results, i see the same items being repeated throughout the list in the combobox.I guess my questions are:
1. when you fill a dataset do you need to select all the fields when you are creating your query?
2. if i simply wanted to perform the following lookup:
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]and set the combobox Display Member: CurrencyCountry, Value Member: FCode how would I do this in the code?
3. how can i change my query to display only unique values, distinct doesnt seem to be working?
Fill ComboBox With Query Result?
Dec 11, 2011I'm trying to fill combobox with my SQL query result.[code]...
View 2 RepliesFill Font Color In A Combobox?
Jul 1, 2011Do any of you know how i can filled the font color in a comobox and then change the color of the text in the textbox?
View 1 RepliesFill Info From Table Into A Combobox?
Feb 15, 2012Can someone tell me what's wrong here: Dim sql As String = "SELECT * FROM courses" Dim con As New MySqlConnection Dim dt As New DataTable(sql) Dim cmd As New MySqlCommand(sql, con)
con.Open() ComboBox1.Items.Add(dt)It doesn't show the courses.
Fill Other ComboBoxes DataSources When Another ComboBox Changes?
Sep 23, 2011I have a form that has three comboboxes in it, cbxStudy, cbxMethod, & cbxAnalyte. When I call the form I load a data table and use that table to fill the comboboxes. I want to assign a value to cbxStudy, then fill cbxMethod by filtering the data table using the value in cbxStudy, then fill cbxAnalyte by filtering the data table using the values in cbxStudy and cbxMethod.
This code keeps failing when the forms New constructor is called, but once the form is loaded the code works great. I indicated below where the code is failing. It's failing because Me.cbxStudy.SelectedValue is = {System.Data.DataRowView} when the constructor is called even though I set the SelectedValue myself.
Public Class frmSelectMethod
Private cv_dt As New DataTable
Private cv_strPrevValue As String
[Code]....
Fill Up ComboBox With All WinForm Keys
Oct 10, 2009I want to fill up a combo box with all the keys from System.Windows.Forms.Keys. My question is how can I do this?
View 6 RepliesHow To Fill Combobox Column In DataGridView
Mar 8, 2010My DataGridView contains three columns, column types are checkbox, textbox and combobox.How can I load a row's combobox when the checkbox in the same row is checked?
View 1 RepliesMultiple Combobox Fill With One Dataset?
Jun 6, 2012i have the following code to fill two comboboxes using one dataset:
Private Sub sub_cbo_type_load()
Dim ds As New DataSet
ds = cls.cbo_type()
[Code].....
the problems is: whenever the index is changed in one combobox, it's automatically changed in the other one too.
Use Excel To Fill Combobox And Textboxes?
Oct 18, 2010I need my application to open an excel document and fill in the combo boxes, with whats in Column A, and then fill in text boxes with whats in Column b etc, but I also neeed to edit those textboxes incase I need to do any edits to the excel document, then click a button, and save those edits to the excel document.
View 3 RepliesUsing A Column In A Database To Fill A Combobox?
Aug 6, 2009I am using MS Access and i want to fill a combobox cmbFamily with data from a column called family in a dataset called availability and also a combobox called cmbModel with a column called model.
i have this:
cmbFamily.Items.Add(Availability.Columns.Contains("Family"))
cmbModel.Items.Add(Availability.Columns.Contains(cmbFamily.Text))
'and
cmbModel.Items.Add(Availability.Columns.Contains(cmbFamily.Text))
If you're not living on the edge, you're taking up too much room
VS 2005 Fill Combobox And Textbox?
Jul 19, 2009White this code, my ComboBox while by fill, white data frome the database. Now i want to fill the TextBox, on basic frome the selection off the ComboBox
example,.. The ComboBox is filled white meat, in the database is there a price attached
Whene i make a selection in the ComboBox, thane must the attached price show up in the TextBox. My code works for de ComboBox, but not for the TextBox.
[Code]....
VS 2008 Fill ComboBox With DataReader?
Mar 16, 2010The code works fine, but I don't know if is necessary while sentence, maybe there is another option..
Dim CMD As New OleDb.OleDbCommand
CMD.Connection = otraConexion
CMD.CommandText = "SELECT * from procedencias"
[Code]....
VS 2010 Fill Combobox In A Webpage?
Jan 19, 2012this is the code in the webpage:
<select id="topic_id1" class="createSelect" tabindex="3" title="Choose a topic (the best that fits)" name="topics[]">
<option value="">Choose a topic (the best that fits)</option>
<option selected="selected" value="5887581">Arts & Design</option>
<option value="5887601">Books, Poetry & Writing</option>
<option value="5887571">Business & Work</option>
[Code]...
Fill A ComboBox Control With Full Names (last, First)?
Mar 3, 2011How do you use a parameterized query to make the (last_name, first_Name) appear in the same combo box? I know how do drag them over from the DATA SOURCES menu, but I am trying to combine them. So instead of it being two separate combo boxes with both last_name and first_name), it want it to find the the names with first and last name in the same combo box.
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