Using A Column In A Database To Fill A Combobox?
Aug 6, 2009
I 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
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Mar 8, 2010
My 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?
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Apr 28, 2010
I 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?
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Jun 7, 2011
I use split button with ContextMenuStrip and i need to fill ContextMenuStrip with data in database like item name
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Jul 21, 2009
I have a table adapter for a fairly sizable piece of data. Now with this data I would like to give the user the ability to change the company name and have this reflected in the form on the drop down list of all of the companies once they have clicked submit. However, in order to do so I currently "Fill" the entire table adapter again to achieve this.Is there any way which I could just re-fill the company column from the database in the same tablea dapter.Here is my code for the sub:
Dim NewName As String = txtNewName.Text
Dim OldName As String = txtOldName.Text
Dim FieldName As String = Me.Text[code]...
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Jul 20, 2010
When I fill a ComboBox the usual way, I am able to get it to work but when I try to make it a public sub so that it can be used over and over again, I am getting no where.[code]
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Sep 6, 2009
I need to fill an array with whole column from database table, so i have used reader to read the values from that column, but can not figure out how to put them into array (code below doesn't work) [Code]
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Dec 25, 2009
how i can connect to an access database and fill a combox with data of a column?
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Jun 18, 2009
I m filling values in DataGridView using following code [code]Can anybody help me to insert and retreive values from database in datagridview combobox column.
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Jan 15, 2012
I 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]......
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Aug 19, 2009
How to fill another combobox depending on the value selected from first combobox?
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Apr 28, 2012
I want to get all items from one column of database table to the combobox items.
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Jan 5, 2012
I 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.
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May 20, 2012
I 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]
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Nov 14, 2010
I am using the following to strip out unwanted string in a string and i want to fill newly created column with split value. I dont know how to get the "Cityrev" into a column value[code]....
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Dec 5, 2010
I would like to manually insert values in a combobox colum of a datagridview.I am using the DGV as an UNBOUND control.
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Jan 21, 2010
i make this code to achive what i need[code]but in datagridview what i make when i want to convert to use in dgv
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Feb 9, 2009
I've been able to add my own non-bound columns to a DATAGRIDVIEW - such as a check box column.But I'm not seeing how to take a bound column and make that column be a combobox. Doesn't appear to allow that.Do I have to hide the real column and add a "fake" front-end column that I make a combobox?
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Oct 21, 2009
Okay 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]...
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Sep 25, 2009
I 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.
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Feb 13, 2009
I 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]...
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Feb 27, 2010
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]...
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Aug 6, 2010
I 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.
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Dec 11, 2011
I'm trying to fill combobox with my SQL query result.[code]...
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Jul 1, 2011
Do 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?
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Feb 15, 2012
Can 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.
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Sep 23, 2011
I 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]....
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Oct 10, 2009
I want to fill up a combo box with all the keys from System.Windows.Forms.Keys. My question is how can I do this?
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Jun 6, 2012
i 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.
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Oct 18, 2010
I 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.
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