Get Fillby From Database .sdf To ComboBoxes
May 12, 2012
I need the comboBox to show the data from dataTable but i don't know how to do it. To do that we need to make relationship or what? Like posted another day.
1-Column No.
2-Column Type = mp3, wav, ogg
3-Column CompanyName = CompanyName
4-Column Volt = Volt
How it work when select type for example : mp3 and column companyname it show the volt we have added. the same when we choose mp3 and another companyname it show the volt of that company.
Because i need to know which companyname show the update of their volt.
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Apr 5, 2010
I am trying to search an access database using FillBy lastname, I want to edit by query WHERE clause to find all or similar last names such as (Frank, Frank Jr. Frank Sr.) Currently this is the where clause I'm using.WHERE =?, how do I change the Where clause to do this?
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Apr 24, 2012
this is a subset of a previously posted problem, I have narrowed down my issue and am reposting a question from this thread: [URL] I have apparently confused the compiler by renaming some comboboxes in Visual Basic .net express? (See relevant code below) I think the confusion is in who should handle what, with two routines named with variations of ComboBox1 and one handling the other ( it confuses me just trying to interpret it mentally):
[Code]...
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Oct 28, 2011
I have a form with 4 comboboxes and a button. The first combobox is enabled, but the rest of the controls are disabled. When the form is opened I fill the first combobox (cbxMethod) with a datatable. When the user selects something in cbxMethod the next combobox (cbxStudy) will be filled and so on. When the last combobox (cbxAnalyte) has a selected value I want to enable the button and give it focus so the user can move forward with the program. I basically want to force the user to move from one combobox to the other, until all are filled.I am currently using the SelectionValueChange event, but this event only fires when the user changes the value with their mouse or hits the Enter key, not when the user hits the Tab key.
Public Class frmCalculatedAnalyte
Private cv_dt As New DataTable
Public Sub New()
[code]....
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Jul 3, 2010
I have tried to set up combo boxes in the gridview but all the combo boxes have the same value in them instead of the value from the database. I am using entity framework and WPF. There is a parent child relationship between two tables but the source for the combo box is a separate table with names and IDs for tags. I have been looking all day. Hopefully this won't be too easy to solve.
The "Tag" Column displays the combo box. The Column "Tag ID" displays the value from the database. When I display the data the TagID Changes in diffrent rows but the Tag column is the same (the first choice) in all the rows. When I change one combo box they all change. I can't see where they are hooked together.
Here is the XAML
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="372" Width="675" mc:Ignorable="d"
[Code].....
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Apr 21, 2010
I'm using VB 2008 Express I have 2 Comboboxes, and an Access Database with 5 coloums, I have managed to connect to the database and populate the first combobox.But I then wish to use the second combobox to filter the data further. ie 5 coloumns Country, City, Cinemas, address, Tel.no I wish to use the first combo to select Country, then use the second to select city so that if there is more than 1 city in the country coloumn I can select it and then I wish to display the results of the other coloumns in textboxes/labels
my code so far
Imports
System.Data.OleDb
Public
[code]....
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Jun 10, 2011
I am developing a Windows application in Visual Studio 2005, V2.0 using VB.NET. I am coding part of an Emergency Response Information System. On my form, I have two combo boxes (cboBaseStationID and cboPriority). I am trying to populate the datagrid with records from my database based on what is selected in both comboboxes.
For the first combobox, the user selects a name so the datagrid must only show records with that name. For the second combobox, this is a little more complicated. There are four emergency priorities in the combobox that the user can choose - 1, 2, 3, 4. In the database, there are different response teams (to be dispatched to these emergencies) and each response team has a grade of either 1, 2 or 3. [Code]
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Apr 15, 2011
I need to create a fillby method that includes a variable. I know how to create the query with known information example:
SELECT CadetPhoto, CaseID, CaseManager, ContractRate, DOB, DormAssignment, FirstName, Gender, GraduationDate, HomeCounty, InductionDate, JBCNumber, LastChange, LastName, MiddleName, PID, Race, RefferingPO, SSN, SchoolID, Shots FROM Cadets WHERE (GraduationDate
IS NULL)
But i need something more like
SELECT CadetPhoto, CaseID, CaseManager, ContractRate, DOB, DormAssignment, FirstName, Gender, GraduationDate, HomeCounty, InductionDate, JBCNumber, LastChange, LastName, MiddleName, PID, Race, RefferingPO, SSN, SchoolID, Shots FROM Cadets WHERE (JBCNumber
= Variable)
Where the variable is passed in when the method is called.
How do I set that variable when writing the select statement?
How do I pass in the JBCNumber when the method is called?
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Jun 22, 2010
I have one problem solved, properly converting text to numbers. Now I want to use that conversion as a selection parameter in a FillBy statement.I have two comboboxes linked to an Access 2007 database. One box lists the names of the States in the US. This is what I used for the Table Adapter Configuration Wizard for the combobox "State". [code] ST_UID is an Integer. I created a label with a bound value to STATE.ST_UID so that when a user selects the name of a state from the State box the appropriate ST_UID populates the label, (i.e, California has an ST_UID = 5). The problem is when a state is selected, I only want the Counties for that state to appear in the County box, i.e, COUNTY.ST_UID = 5 if California is the selected state. [code] Problem is I'm not getting any results, the "County" combobox is blank. I've tried a lot of variations on the code, such as % StUID %, etc., but no luck. I have experience with VB 6 but am a beginner with .NET.
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Jun 6, 2012
how do i pass parameters to my Table1TableAdapter.FillBy statement?i've configured the commandtext but i can't work out how to pass in the parameters.
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Oct 27, 2010
passing parameters to dataset FILLBY GETDATABY
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Jan 19, 2010
Banging my head against a wall here. I have a query that looks like this.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName LIKE 'JOE%'
That works absolutely fine in query wizard and the DataTablePreview data window. However, when I do this.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName LIKE ?
I get nothing when I run the fillby method. If I change the LIKE to =.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName = ?
Everything works great. I need to get LIKE working though so I can wildcard search.
I'm using the SQL server OLE db connections if that means anything.
UPDATE
Using the LIKE operator doesn't work at all. When I just swap out = for LIKE. Nothing is returned.
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May 13, 2009
I have 5 combo boxes all connected to a database by datasets.
The user should be able to select different items but for some reason when one combobox item is selected, the same item becomes selected for every combobox.
I haven't coded anything regarding the cbx's so why is it doing this?
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Jun 21, 2010
I have two comboboxes the first one is for order #, the second one is for the amount of order payments, there could be 1, 2, 3... payments for this order. I would like to get all payments to show in the second combobox that relate to the order # selected in the first, process that payment by changing other values in other textbox's. Then have that payment psoted as processed back to the DB table. I have a binding satament, but it pulls all payments, and not just per order. How can I get this to select just by order #?
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Feb 12, 2010
I have this code that adds items in 2 comboboxes: The first code works fine as it adds the dates into the comboxes
Dim myConnection As OleDbConnection = New OleDbConnection
Dim myCommand As OleDbCommand = New OleDbCommand
Dim myDataReader As OleDbDataReader
myConnection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|Network_Info.mdb"
[Code] .....
But when I try to add items by month I always get this error in these lines:
ComboBox2.Items.Add(myDataReader("DateRecorded"))
ComboBox3.Items.Add(myDataReader("DateRecorded"))
It says: IndexOutOfRangeException was unhandled
[Code] .....
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Oct 27, 2010
I have a project in which the comboboxes above the code window, below the tabs have disappeared. If I open and close the project, they do not appear. If I open another project, they do appear. As soon as a open the project where they do not appear, they disappear.
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Feb 8, 2011
I have: [code] So, when I select something from cmbx1 it selected in cmbx2. How does it works?Do I need a copy of dt for second combobox to get independed but same values?
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Mar 15, 2012
My problem in the Combo Box and SQL query .. I have three comboboxes linked to an Access 2007 database
[Code]...
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May 10, 2012
I've been working on a VB project where I use a 1st drop down list to select a movie category and then in the 2nd drop menu, movies from that category will be displayed. The movies are stored in a 2-dimensional array by category. I've been able to edit my array but I'm having problems with my .AddRange() function. What would I have to put in those parentheses for the list (for each category) to appear in my 2nd combobox when the category is selected?
[code]...
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Jun 21, 2010
I bind the two comboboxes with table. One combo contains product and another contains subproduct. When I clicked first combobox then subproduct of that is filtered in another combo. When I clicked next,previous, it is working properly. But when I go to last record second combo is refreshed means it is not showing proper subproduct. Given the code on 1st combo_selectedIndexChanged. When I go to last record the SelectedIndexChanged event occur.thats why it is not show me last record proper.
Private Sub frmType_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
cmd = New SqlCommand("select makeName from Make where status='Add' or status='Edit'")
dt1 = New DataTable
dt1 = ob.getDataTable(cmd)
cmbMakeName.DataSource = dt1
[Code] ......
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Sep 11, 2010
i have a datagridview with a column with comboboxes. My problem is that the changes that i am doing from comboboxes didn't occur to datagridview immediately but after the user click to another cell.
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May 27, 2009
I have a combo box on a form, it has a large number of values in it (about 40000). When the combo box populates it flickers from invisible to visible for about a second.After investigating this I am sure that it is not the call to the database that is causing this but when the combo is drawn.
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Sep 1, 2011
I have been setting DataSource for a series of combo boxes to the same table as they all display the same options. However, when I ran the project, any change in any one combo box makes all the others 'flip' to the same selected value. This is obviously wrong.
In Access, you have 'Control Source' which is the db field that is bound to the combo box and 'Row Source' can be a query or whatnot that several combo boxes can run 'independently'.Is there an equivalent option in VB.NET? I DO NOT want to manually enter the exact same options many times as that is hard to maintain, to say the least.
Just to repeat: it is not going to work to say DataSource = Row Source. if two combo boxes are set to the same data source, a selection in one automatically makes the other one select the same value. unless, of course, i am missing something.
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Jan 16, 2012
I use VB 2010 Express My problem is:I have two comboboxes one button and one textbox.So what I am trying to do is.Add company names Like EA Games and lets say product name is Crysis.and I want it to show the barcode number of the product n P.I.D?
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Jun 9, 2011
I have a form with two comboboxes ,one text box and a button .I have multiple tables in ms access database with same structure , col1 and col2 .I want to insert text box value into column1 in the table selected from combobox1 and into column2 in table selected from combobox2 such as if i select table1 from combobox1 and table2 from combobox2 and click on the button, data should be inserted into both table1 and table2.when i run the code it , i dont get any error but it does not load the tables in comboboxes
Imports System.Data.OleDb
Partial Public Class Form1
Inherits Form
[code]....
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Feb 11, 2012
unfortunately searching the web i cannot find a decent example that allows me to loop through a winform to make sure comboboxes items are selected.basically what i would like to do is check the form if the comboboxes have been selected if not then highlight them yellow and set the focus on them.
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Feb 6, 2010
I would like too generate a number of comboboxes at runtime and then pass them to a Sub, like this:[code]What is the correct syntax to use to pass the comboboxes collection to the Sub?
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Aug 11, 2009
I have the following class. Basically, i want to populate a bunch of comboboxes. So i want to return an Id and description column almost all the time.
Public Class combodata
Private _id As Long
Private _description As String
[Code]....
how can I return the items as an array. Is converting to an array the best way? I will need to populate a combobox with the returned result
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Apr 2, 2009
I have a vb.net window app that has a number of combo boxes on it. These are being populated from a number of XML files and all this works like a charm. The problem i have is when it comes to putting the comboboxes in a datagridview. I have set up my columns and have set the first column to be a combobox but i'm having problems referencing this so that i can set the datasource to populate it.
I've looked everywhere but cant seem to find how to reference this control. Once this has been selected it will populate a second combo box based on the data from the first. I think i can sort this out, if i could only work out how to set the datasource of the first combo programatically.
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Apr 21, 2012
I'm working on a college VB project using an 2D array with 2 combo boxes. One combo box selects a size and the other selects a style. I have everything working correctly with calculations except I need each combo box to pop up a message box if the user doesn't make a selection in a combo box. It will pop up for one combo box, but not the other. My question is how do I get the program to pop up a message box for each combo box independently? Should I use Try/Catch or would another method work better? (I'm using VB Studio 2010)
Private Sub CalculateToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CalculateToolStripMenuItem.Click
'Retrieve price of selection.
[Code].....
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