Im learning how to work with databases. So far I've created the database (FirstDB.sdf) (without a dataset - because I'm not exactly sure what this is and why it would be needed?)
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My Question is. What code do i need to put under the AddDataButton to get the Values of FirstNameTB, LastNameTB and YearTB into the relevant columns in my Pupil Table?
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
I used to be a web developer in vb.net 2008 , now i get involved in some projects with application development. Which is the right way i mean the proffesional way to connect to database , syntax a query and bind the result to datagrid?I see 2 ways , the first is using the wizard i mean drag to the form the databinder from the toolbox and follow the wizard step by step , the second way is the same way i used in web development i get the connection string from app.config , syntax a query inside my code and follow manually steps to retrive the data from a database.which way to use for a large application projects?
At moment iam trying to fetch some data out of a mysql database.hope i can explain well what i try to do.Okay i made a form with some text field and a combobox.What i want is at start when the form loads that all the last name will get catcht out of the mysql database. all those last names should go in the combobox.now i have a few textboxes like adress phone number living place go onWhat i try to do now is when all those lastnames are in the combo box when i select a nameand press the button to update that it will catch the info from that user out of the mysql database and puts the info in the right textfields.What i got so far is a succesfull connection to the mysql database.
How do i know that my login to the application is also connected to the database and that one works fine ;)the only thing i cant manage is to take the data out of mysql and put it in the textfields.i made a form called test to testthis out so far this is what i have on code
I've a question about vb.net application with ms access 2002 database.I use "Add data source" wizard to setup a connection to a access database.my application read text file into a temp data table at runtime.a button click to import data from temp table into one of access table.problem is data is not added at all.here is the code I use to do update
For Each dr In dt.Rows DataSet1.tbl2.ImportRow(dr) Next DataSet1.AcceptChanges() TableAdapterManager1.UpdateAll(DataSet1)
I have a simple form with about 40 textboxes bound to an access database.I simply want the data entered on the form to be written to the database.I have search extensively but i am getting more confused.I dont want to use the binding navigator to do the record adding just a button.From what i understand the data has to be written to the dataset and then the datbase updated.But how do i get the form data into the dataset ?
I am working on a project that stores data on animals. I am trying to make updates to data already stored there, through inputs on a VB form. A form where all the data is populating the fields shows up and the user can change/update any field. Once they are finished, they click update and the DB is supposed to reflect those changes (Theoretically)However, I wrote the code to do that, but when it runs nothing in the database is changed and nothing gets done, as it seems. No errors appear and nothing goes wrong with the program. It just doesnt change the data in the db.
I am working on a project that stores data on animals. I am trying to make updates to data already stored there, through inputs on a VB form. A form where all the data is populating the fields shows up and the user can change/update any field. Once they are finished, they click update and the DB is supposed to reflect those changes (Theoretically)
However, I wrote the code to do that, but when it runs nothing in the database is changed and nothing gets done, as it seems. No errors appear and nothing goes wrong with the program. It just doesnt change the data in the db.
Here is the code updating the database.
If txtNewID.Text = "" Or cmbRegion.Text = "" Or txtWombatName.Text = "" Or cmbGender.Text = "" Or txtAge.Text = "" Or txtWeight.Text = "" Or txtLength.Text = "" Or txtCommunity.Text = "" Or txtDescription.Text = "" Then MsgBox("Please fill in all required fields.", , "ERROR") Else
I have two forms in my program, Form1 has ListBox which contains names from the Database.Form2, has textbox and add button to get a new name from the user.but when I click on add button.. i return to Form1 to view the names in the listbox by clicking on view button: ALL NAMES ARE DISPLAYED WITHOUT THE NEW NAME.when I close my program and click on View button all names including the new name that was entered before are displayed ! is there a way to display everything in the database without closing the program??I need a way to refresh or something.
Form1:
Imports System.Data.OleDb Public Class Form1 Dim ds As New DataSet()
I got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click Try btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
i m unable to update data into my database in vb 2008. the changes are reflected in the dataset but they are not reflected in database. i have set the datasource's copy to output property to copy if new but it is still not working.
I'm actually making a library system and I'm having problems with my data not saving in the database. It does appear in the DataGrid but after I close the application and check the database, nothing's there. [URL]
Here's the code.
Imports System.Data.OleDb Imports System.Object Public Class AddBook
It is an inventory program I am doing on the side just to keep track of a small number of supplies, I want to be able to enter a barcode and have the program see if it already is in the inventory database, if not, it will allow me to enter information and add it to the database (That part works - Thanks to member on D.I.C.) If the barcode exists, I want it to fill the form with all the data from the database and allow me to update fields such as date used and used definition
Here is what I have so far:
Imports System Imports System.IO 'Added For Database
I am currently puting together a data driven application just for fun and to get to know sql. The problem i am having is on my new customer form I cannot get the data in my text boxes to save into my database table at runtime. I simply have 4 textboxes and a save button the code for my save button is as follows:
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click Dim Connection As SqlConnection = MSDB.GetConnection Dim mySqlCommand As SqlCommand = New SqlCommand Connection.Open() [Code] ....
All this does is bring up an error in runtime. How to get that to work when I press save the details in my text boxes are actually saved into my database table.
I know how to pull data from an access database and place it into a combobox, but I am trying to make certain that I dont have multiples of the same information.
Like one column is for countries of origin.
United States Canada Mexico
In the combo box, it should only list the United States only once, not multiple times.
i'm using a timer to open a database and drop in a few fields of info, such as date, time and 3 traces.
the timer interval is set to 1000msec, but after its been running for a day or so, i've looked into the data and i can see there are periods where no info has been logged. sometimes its as little as a couple of seconds, and other times its upto a couple of minutes.
How to filter data from the database to combobox? For example, the database have the data, and i have a combobox, then i want to type the first letter, and the dropdown list comes down that the data have the first letter that i type in the combobox.
Alright it's been awhile since I messed with this project, so here goes. It's an appointment scheduler and everything works except two things: I can't edit existing appointments and it only records the current time, not the timeslot I click on when I add a new appointment. If I try to edit an existing appointment it doesn't get the row data, just shows me blank text boxes. I assume I have to have those text boxes read the info from the database, but I don't know how to do that. This is how it looks:
i use this gridview to save data to database. but everytime i save, the only data that saved was checkbox that i was recently checked. so checkbox that was supposed checked not saved to database. [code]
if this question has already been answered many times, but I am new to VB and I don't really understand any of the examples I have found by trying to research this topic. I am using VB 2008 Express Edition. My List View is called listView.
am pretty new to VB and i am slowly teaching myself .I am working on a project at the moment which will write to an access database. I have created the database with contains about 40 fields. i Have a form which the user inputs the data into whose controls are bound to the corresponding fields in the database . I have been reading up on what a could but the more i read the more lost i am getting.
The form1 has a listbox which contains a list of student names.If i select any one of the student name in the listbox and i click the button,the form3 should be open & listbox in form3 should be loaded with the corresponding scores of the student name that is being selected in listbox of form1.The condition i used here is if the value of textbox in form1 is 1 then the dr(4) value alone should added to the listbox in the form3 and ;likewise it depends on the value in textbox of form1. ...FOR THIS I USED THE BELOW CODE
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When i tried to run this code it is showing an error "Index was outside the bounds of the array" on the line that i highlighted in the above code.