"Accumulate" A Value Of Column In MS Access Database Using Checkedlistbox
Apr 23, 2011
I am creating a system that records attendance of students. I designed it in a way that the user needs to load an Access Database into the system to populate the checkedlistbox, and then is able to check(tick) for whoever attends the class and click the Submit button.
Currently, i have my form able to Load from an MS Access Database to populate the checkedlistbox, but that's all. As for the Submit button, i would like it to check for selected items from the checklist and for every checked students, value "1" will be added to the "Attendance" column in the database for each particular record. Those that aren't checked would not have any changes to it.[code]...
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Sep 21, 2010
I'm using VB 2010.I want a 2-column listbox control where the program fills the first column and the user can fill the second column. For example: The first column lists data fields (age, weight, eye color) and the second column allows the user to enter a query criteria (>65, =150, 'blue') which control I can use? Or maybe I need to create a 3-column grid?
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Mar 26, 2010
I need to create a checkedlistbox that has multiple columns and each column has a header. Is this possible? I can't really find much on Google. Here's the headers I need:
Checkbox Title Existing path Destination path
I have created these columns to the checkedlistbox I have in my form, but when it is run the headers don't show up. Also the items I'm adding don't seem to abiding to the column widths I put in. Also with the code I'm providing below the items don't display as multiple rows, meaning each item doesn't get displayed on a new row, but in a new column.
vb
For i = 0 To iMovies
Movie = New MovieItem()
Movie.tmdbid = CInt(StrBetween(moviestag, "<tmdbid>", "</tmdbid>"))
[Code].....
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Jun 29, 2010
My program has an access database with a table called "Contacts". This table stores many values. I have a seperate table that stores surveys. Each contact should have a column for every survey, indicating whether or not the survey has been completed. However, this means I need to add columns to the database while the program is running. I tried the following code, which runs WITHOUT errors, but does not seem to actually add the column.
contactsDataAdapter = New OleDb.OleDbDataAdapter("SELECT * FROM Contacts", frmAdmin.con)
contactsCommandBuilder = New OleDb.OleDbCommandBuilder(contactsDataAdapter)
dtContacts.Clear()
[Code].....
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Jan 21, 2009
I'm using vb2005express for forms (front-end) and ms access database. I have a form with a master-detail setup. The problem I'm having is that when I set the primary key column to autonumber, I don't get the pk value generated in ms access database into my master datatable in forms when a new record is created. Then I tried setting the AutoIncreament to True in the pk column of the datatable in my dataset (forms). This generates a number in my pk column but its not the number generated in the database (since I think because the pk column is still set to AutoNumber). So I change the field property of my pk to Number in the access database and on my dataset (forms), i still have AutoIncrement to True.
This works okay since what it seems to be doing is getting the max value for the pk column when the datatable is filled upon form load. The problem now is that I normally don't do tableadapter.fill(datatable) at form load since I think there would be a performance issue if record counts around millions. What happens now is that when I create a new record, the pk generated is still 1 which will cause duplicate violation when saving to database. I'm not quite familiar with access features but in oracle, what I do is I create a sequence in database then I create a function that gets the next value of the sequence. Then at form load I set the datatable.column.default_value = get_sequence. How do I do this in ms access?
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Jun 2, 2011
I need a way to have 3 colums of checkboxes inside a checkedlistbox. I know i could do it with a panel, labels and checkboxes. But having them all in the control would be more convenient. I'm pretty sure there is no direct way of doing this, so i assume i need to create a user control. If you're not completely sure what i'm trying to create, i'm going for something that looks like this: [URL]
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Oct 21, 2011
I need to add a new field to an Access database table, the user has filled the table with data, so I have to add the new field but to preserve the old data.
I have found the ALTER TABLE statement, but it gives me an error (ALTER TABLE is not a valid statement)
I done this in php+mysql with "ALTER TABLE People ADD Address TEXT NULL AFTER Name" (as an example)
How can do this in VB2010?
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Jan 9, 2012
I am using a query in vb.net, database is Access. I need alias of query like sql but the query return me column alias and also ' '
SELECT COLUMN1 AS 'FIRST NAME'
I expect the result to be a field called FIRST NAME but it returns the string "FIRST NAME". Is there is any way if return me the field FIRST NAME instead of "FIRST NAME".
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Sep 29, 2008
How can I get information what data type a certain column is. (Integer, string, memo,...)
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Aug 8, 2009
I have an access database with several tables. in one of the tables there are three columns named quantity, price and total cost.total cost is an expression of (quantity * price). the expression looks grate in the datagrid etc but when I need to save it to the database
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Nov 5, 2009
I am using a textbox's AutoCompleteSource I would like to link a column of a Access database. Is there a reference to it.
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Oct 24, 2010
I would like to populat the Listbox collection from a column from a Access database I already created the name of the collection as collections. I can autocomplete/Suggest a Textbox with no issues.[code]
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May 25, 2010
I'm looking to retrieve all the entries from one column of an access database table and copy to an array. this array i will then be randomly selecting values from it to create foootball fixtures. I'm confident of being able to achieve the random side of it but i'm struggling to get the records into the array.
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Apr 15, 2010
I don't know if this is the best way to do it or not but here goes.I have an access database and a datagridview and they link via a SELECT statement at runtime.I want to total one column named LNLMTS and display the result.I am looking at using SELECT Sum LNLMTS FROM tblProduction WHERE SO=@so AND DATE=@date
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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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Aug 16, 2009
i want to compare a column present in the access database BankAccount table with a field present in the form named as account......
[Code]...
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Oct 21, 2009
I am trying to alter a column in an Access database in VB2008 from date to text format using the SQL string as follows "ALTER TABLE receipts ALTER COLUMN Date CHAR(10)"but whether I Use TEXT, CHAR, VARCHAR or STRING, I get a Syntax Error when I run ExecuteNonQuery.
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Aug 13, 2009
I am trying to set autocomplete for a textbox using data from a column in a table an Access database. Some of those records in the table have no values. I have set the AutoComplete Mode property to SuggestAppend and the AutoCompleteSource property to CustomSource. When I run the application nothing happens when I type into the textbox. The dataset is called DatabaseDataSet and the table name in the database is called Simple and the specific field/colum is called SIM_TAG1
'Create customsource for tag textboxes to suggest tag terms based on what is in database
Dim oTag As New AutoCompleteStringCollection()
For Each term As DatabaseDataSet.SIMPLERow In Me.DatabaseDataSet.SIMPLE
[code]....
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Dec 8, 2011
I'm trying to add a string to a access database, for a column that was originally designed for numbers, i have changed the data type under the design view from number to text, yet I still get a error saying that it cannot convert the string expected int32
Input string was not in a correct format.Couldn't store in Parent_ID Column. Expected type is Int32.This is the full exception, i would have put it into code display but the option wasn't there
System.ArgumentException was unhandled
Message=Input string was not in a correct format.Couldn't store <A-238> in Parent_ID Column. Expected type is Int32.
Source=System.Data
StackTrace:
[code]....
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Aug 25, 2010
I have an access table that I'm loading into a dataset, then I'm binding the dataset to a bindingsource. The bindingsource is the datasource for a datagridview. I can use a command builder to update the entire table, but I need to update all the rows (or changed rows) in specific columns. I have a column called "dPrint" which is Boolean. I'm not sure how to use the bindingsource as my datasource in an Update Command. I've tried this:
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Feb 22, 2012
Trying to get a database into my Checkedlistbox. This is the code I have so far: Private Sub CheckDevices_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim connectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=N:DeviceList.accdb"
Dim str_DeviceList_Select As String = "SELECT * FROM DeviceList"
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
Dim myAdapter As OleDbDataAdapter
Dim myDataSet As DataSet
[Code]...
So I have the dataset with database in it, but I am struggling to get it from the dataset into the Checkedlistbox. Could someone do some quick code for this?Secondaly, I also want to set the checkbox's by using a string of integers which will look like "0110100110". If the value is a 1, I will want the corresponding checkbox to be checked, eg, "0110100110" So I would take that one, and check the 8th checkbox down in the checkedlistbox... So if anyone if feeling really generous, could use a little help with this as well.
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Feb 26, 2012
Ive got a CheckedListBox where I have a list of devices and a checkbox to tell me whether they are on or off. I want to be able to change the checkbox in the program of a specific device and then when I click submit, it to generate a string of numbers to tell me what boxes are checked (1 for on, 0 for off)Example: Boxes 1,3 and 7 are checked in the checkedlistbox, and there are 8 total, so the string outputed would be "10100010".
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Oct 14, 2009
I want to Know how I can save the CheckedListBox to the database
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Oct 28, 2010
i have the below code
For i = 0 To Me.checkedlistbox1.Items.Count - 1
If reader("productname") = checkedlistbox1.SelectedItem(i).ToString Then
[code].....
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Apr 14, 2010
I am trying to save checked items from a CheckedListBox to a table in a database, I am using the following
Dim conn As New OleDb.OleDbConnection("Provider=sqloledb;" & _
"Data Source=KIM-LAPTOP;" & _
"Initial Catalog=ScrcCardBase;" & _
[Code]....
Or does anyone know of an easier way to save checkedlistbox data to a database.
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Oct 2, 2011
how can i dynamically populate checkedlistbox with items from the database?
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Oct 30, 2008
Here's what I'm attempting: The user browses for and opens a dbf file. The user is presented with a checkedlistbox which shows the column headers. The user then selects the columns they wish to run a report on. ex. total # of cells not empty, longest cell length, etc.
I'm to the point of populating the checkedlistbox with all of the columns shown but I'm unsure if the users selections are actually linked to my data and if they are how I go about isolating said selections for the reports. I have a feeling that my approach to populating the checkedlistbox is not the proper way for what I'm trying to accomplish.
Here is the code
Public Sub btnGetFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetFile.Click
Dim fileLookUp As New OpenFileDialog
[CODE]......................
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May 14, 2010
I am trying to look through a database and checked items in a checkedlistbox based on a Contact ID number. The error I'm receiving is this : Public member 'item' on type 'String' not found.
The error is on this line of
"If lstDebtState.Items.Item(x).item(0) = dt2.Rows(j).Item(0) Then"
<b>
Here is my
</b>
Try
con.Open()
[code]....
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Oct 17, 2010
I have been working on a class project for sometime now. Currently stuck and need some help. Project is due today, so I'm desperate for some help. Please see attached project file.
[Code]...
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Jun 2, 2011
how to accumulate the total amount in sql table. I have created a table below but it does not calculate accurately. By mean it just total up current top up amount with the 1st value of grand total. How do i total up to get the accurate figure.
ID Amount GrandTotal
99 1000 1000
99 500 1500
99 300 1300
99 200 1200
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