How To Generate ID Based On Comboboxes Selection
Jun 18, 2012
i am creating a programme for my institute which helps in their administrative process. i am using visual studio(basic) 2010. which is connected with ms access database (abcdata.accdb) the database is having table called session with columns sessionID,sessioncode,sessionname.
* sessionID data = 1,2,3,4
* sessioncode data = 13,14,15,16
* sessionname data = 2013,2014,2015,2016
[Code].....
other then this u can see i want this because i am trying to create a database which must save the students data year wise, so that whenever we need to know a detail any students then we can find with query.
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Apr 9, 2009
how to generate unique ID based on combobox selection?
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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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Mar 1, 2011
I have a relatively simple application that uses a series of combo boxes to ask questions. These combo boxes are bound to a table with 2 columns in it "RSN" and "RSN_ID". I'm using one table adapter to feed the form (and these boxes) once the main form is loaded. The problem I'm having is when I change one of the boxes, they all change to the same value, almost like they have the exact data source (which they do) but shouldn't you be able to make different selections even using the same table adapter? I have to run 20 queries at loadtime, or create 20 table adapters.
My current setup is like this:
Data Source: table that feeds the combobox
Display Member: RSN (from combo box table)
Value Member: RSN_ID(from combo box table)
Selected Value: Form's main binding source, unique to each combo box, where the selection is actually saved.
This works perfect when using one combobox, but as soon as I bound all of them I ran across this...
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Sep 18, 2011
I have four comboboxes in my Ist form related to course as.c_type,c_stream,c_major,c_nature.......combobox c_type contains the type of courses like degree,diploma, PG etc,similarly "c_stream" contains stream like engg,medical etc. further c_major contains all courses like computer engg(CE),mechnical(ME), physiotherapy etc. and last c_nature has course nature whether regular or private or distance.Now situation is when i select diploma from c_type, corresponding options must be populate in c_stream like engg. And now when i select engg., CE or ME must be there in c_major combobox .Same is for C_nature.The all 4 combobox must show "please select" text on form load event..i also have 2nd form where i have same combobxs. so is there any way to call the same code without again writing that to 2nd form.
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Sep 30, 2011
In my program I've got several comboboxes that all have the same comboboxitems and when the user makes a selection in one of the comboboxes the selected comboboxitem gets disabled in the other comboboxes. (i.e. If the user has selected the comboboxitem with value 'a' in combobox #1 and selected the comboboxitem with value 'b' in combobox #2 then in remaining comboboxes both the comboboxitems with values 'a' and 'b' are disabled)
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Jun 3, 2012
my question is how to filter other comboboxes based in first combobox whish is having same data as all.i am using visual basic 2010 and a ms access database which is connected with code.a vb form have five comboboxes and all comboboxes are field with same data with this code:
Private Sub loadsubject()
Dim OleDBC As New OleDbCommand
Dim OleDBDR As OleDbDataReader
[code].....
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May 3, 2006
I am currently working in an access database.Using vb.net, I made a form wherein a user can sort data he wanted to generate in a report...sorting are done by selecting the order_date of the transaction(e.g. from 12/01/2005 to 05/03/2006) then he had to select an account(e.g. company name) and lastly exam(e.g. urine test)...Upon completing the selection on the three fields, I want to generate the report base on the selection...I am obliged to use crystal report for this...
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Feb 19, 2011
I want to know if it is possible to generate a php file depending on selection on a win form in vb.net 2010. If so, does anyone has a link to a sample.
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Mar 4, 2012
I have a listbox with two values, Current account and Deposit account.The current account has an interest rate of 7% and the deposit account 3%.I have 4 other textboxes. The boxes on the right is where the user inputs and the left side holds the value.
Account Type [ ] Listbox >>[Current account]
Deposit account
Investment Amount [ ] [ ]
Interest over a year [ ]
What I want for the Investment Amount is that if the user selects Current account, the amount invested will be automatically calculated with the 7% interest and the same for the deposit, calculation with 3% interest.And the Interest over a year textbox to show how much the interest will be over that year at the rate (whether its 7 or 3%)
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Jun 22, 2010
I am currently stuck in one part of my application. I have two combo boxes that i am having the users select from. The first combo box is simply bound to a datatable. that is working properly. The second one i need to populate off another datatable after sorting out what the first one is requesting. Basically it's choosing a line number on the first box and then selecting the machine associated with that line number.[code]...
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Feb 12, 2012
On my form I have two radio buttons. One for CDs and one for books. If I select CDs I have a group box that changes visible = true and I have txt boxes there I want to input. If I select books I want the groupbox to remain visible = false and in its place a text box to appear. How would I do this? I know I can just overlap the controls but that looks hideous in designer.
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Jul 21, 2011
Here the code to load the records in data grid when form loads
01
Private Sub BindData()
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Dec 11, 2009
Just wondering if someone can at least point out where I'm going wrong here. I've already got the code to populate the listbox by a button click from the user and am just trying to figure out how exactly to alter the text of a label based on what the user selects in the listbox. From what I have the Label will display the case else selection but nothing else despite my best efforts to get it to change. Here is what I've tried. I realize it is very trivial, but I am only a beginner to programming.
[Code]...
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Jan 31, 2009
I have VS2005, Microsoft Access 2003
ComboA is binded to the Customerstbl and displays the CustomerNames. ComboB is Binded to the CustomerContactstbl for the selected customer above and displays all Contacts for that customer is a second cbobox.
I am having a hell of a time with this, When I select a customers name in ComboA, I want ComboB to automattically query the contacts in ComboB based on ComboA's selection. where do I create the query for getting the contacts for that customer?
In the Customer or Contacts tbl?
Is this something that would be better hard coding or is VS2005 that much improved that its ok to use these binding features?
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Feb 17, 2010
I have a combobox populated from the DB with:
-ID
-State
-Tax
State is the only value that is shown.I'm trying to get the hidden value, Tax, from the combobox based on the selection but can't figure it out.
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Mar 8, 2010
Given the following XML, I would like to return all eventtitles where the eventtype id = 23. My current query only looks at the first eventtype, so returns the wrong result.
<event>
<eventtitle>Garrison Keillor</eventtitle>
<eventtypes>[code].....
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May 17, 2012
I'm new to programming and I'm using vb.net 2010 and I'm stuck with this problem. So here are the details, I have 2 tables in my database, a product table and a category table. In my product table I have product no, product description and category no. In the category table i have category no and category desciption. So this is where Ive been stuck for the entire day, I want my combox(product) to populate based on what is in the combobox(category). For example I have "Chair" in my combobox(category), then what would appear in the combobox(product) would be "sofas", "dining chair" etc.'the part below is where the program will read the category description from my database
Sub fillcomboDesc()
Dim fillcatDesc As MySqlCommand = New MySqlCommand("Select catDesc from category;", connection)
[code]....
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Jan 8, 2010
I'm trying to populate textboxes on one form based on a selection on a combobox on another form. All data will be pulling from the same SQL table. I've got the combox to work fine to show the correct data in one of the textboxes by using the lines:
Dim connectionString As String = "Data Source=F03D3S-DEV01; Initial Catalog=dos_track;" _
& "Integrated Security=True"
[Code].....
,but not sure how to get the other textboxes to fill with the correct data (from the same SQL table row) associated with the combobox selection. I've spent SO MUCH time on this trying to figure it out, but am getting nowhere fast...
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Oct 5, 2009
NB: I'm using Visual Basic.NET?My form has 2 DataGridView controls. One of these is bound to a DataSet, the other isn't visible - at least not until the user selects a uniqueidentifier cell in the 1st grid.When the user makes this selection, the 2nd grid will become visible and display the row from another with the same id as the one selected in the 1st grid.So, basically, I want to dynamically display data in one grid based on user selection in another grid.My code looks like this so far...
Private Sub RulesGrid_CellClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles RulesGrid.CellClick
Try
FlagsGrid.Visible = True
[code]....
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Nov 2, 2009
We have a GUI that displays a radio selection box (3 options) that are the three sites where our hospitals are. We need to dropdown located on the form to fill with only the locations based on the selected radio option.
Here is the code behind we have so far (sorry, VB)
[Code]....
For the record the Location dropdown is currently databound but its a static SELECT statement which brings us all the locations but we'd prefer it to be cleaner if it only returned the locations based on Site. We are using Visual Basic 2008 Express Edition for development.
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Apr 7, 2010
I have asked questions about this before but my program has came to cross roads where I require more flexibility in my security procedures.At the moment I generate a specific key based on certain details about the system, and I hash this data to file, which ensures it will only run on this system.
However it has now got to the point where I have a need for providing keys which will carry settings for the program within the key. So that if a customer wants an update its the matter of sending an updated key, which will allow certain areas of the program to be unlocked/locked.Obviously I can no longer use the hash, as it can't be decrypted. I am looking to use key encryption system, which will allow to encrypt data within a license key. But obviously it brings the problem of where to store Crypt & decrypt key within the program.
[Code]...
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Jul 20, 2009
I wanted to generate digital signature in my asp.net application based on some value like date of birth. what is the way to do that ? i am using vb.net
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Feb 22, 2012
In my below forms, the user select a name from the combo box list and enters an amount for the name selected. The user can enter as many entries. Every time the total button is clicked, I would like the total for each person to be display on the labels.
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Jun 3, 2010
I am creating a program that will allow me to manage server EXE's for which I have the method to do so already completed. The problem comes when I want my front end to be able to use a database of different server configs stored in a dataset.
My Database has 4 columns (ServerID | ServerName | ServerPath | ServerMod)
I wish to be able to select the ServerName in a combo box (already done via Datasource/DataMember) and then load the ServerPATH and ServerMOD for that row into two variables.
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Apr 27, 2010
I have a form, frm1 w/a combobox, cboLocations, which is being populated using a sql string. There is also a frm2 w/a series of textboxes and other comboboxes. I want it so that once a selection is made from cboLocations, the textboxes and comboboxes on frm 2 are populated with the corresponding data. Here is what I have so far:
frm1:
Public Class frmLocations
Dim conn As New SqlConnection("Data Source=f03d3s-dev01; Initial Catalog=dos_track;User Id=vbuser; Password=tran3;")
Dim depot_refnbr As Integer
Private Sub frmLocation_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
conn.Open()
[Code] .....
What's happening right now is that I make a selection from cboLocations on frm1 and click on the OK button, frm2 loads, but none of the textboxes are populating and one of the comboboxes, cboDepot, shows the different data when you click on the down arrow, but it's not displaying anything it its text field when frm2 loads.
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Mar 26, 2012
I have a database with table "Customer" that will be the datasource for my form controls. My form has a combobox and various textboxes that need to change based on the selectedvalue in the combobox, cboCustNo. Firstly, I'm try to get the combobox to populate with the customer names on the table but have the value member of the combobox set to their customer numbers (just for ease of indexing). Based on the user's selection I'm trying to have various textboxes show the corresponding data (Address, City, Balance, etc.). The code I have so far is below:
Dim cnnDB As New Data.OleDb.OleDbConnection
Dim cmdSelect As New OleDb.OleDbCommand
Dim rdCustomer As OleDb.OleDbDataReader
Dim CustTable As New DataTable
[Code]....
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Feb 5, 2010
I would like to bind a DataGridView to a different LINQ query every time (in order to reuse the same form/DGV for different queries), like this:
[Code]....
but the "Qry", and the number of comboboxes, and their field names would change every time.
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Mar 24, 2011
I'm working in .net environment (all versions) and using vb.net. I want to generate RSA public and private keys based on a passphrase. RSA algorithm only limited by using a class provided by the .net ie System.Security.Cryptography.RSACryptoServiceProvider Class. I know how to generate random RSA public/private keys and perform encryption/decryption.But that .net class don't let us creating RSA public/private keys based on a passphrase.
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Apr 3, 2009
I'm running into a little problem making one combo box dependent on the selection of another combo box. I'm using a access back-end to this project. I have two tables: MajorCategoryTbl and MinorCategoryTbl , MajorCategoryTbl has PK and description field, MinorCategoryTbl has a PK, MajorID (foreign key), and description field. I have two combo boxes on my form, one that displays the Major description, and one that displays the MinorCategoryTbl description, but the stored value is the PK for both. I want the selection of the minor category combobox to depend on what was selected in the major category combobox.
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