I am implementing an application in vb.net about a library management system, when I add new record to the database and then close and reopen the application, the record is not there!
I googled the issue and used the text book of this course but nothing beneficial.
When I put information into my database form, the data is not permanently saved to my database?
View 1 RepliesI'm trying to figure out how to do this as I'm not sure what's the proper way of doing this.
I've got several strings that I want to store/save permanently, even after the application is closed. How should I proceed? Do I read or write from a textfile?
1.) I dragged my detail view over to the form window to create a bindingnavigator, fields, etc.When I press save on the form, the database is temporairly saved.However, if I save my visual basic project, I lose all the changes I have made to my database.Is there a specific save command that updates the access file permanently?The default command added by dragging over the dataset does not work.
2. My database is accessed with the following string:[code]However, doesn't this mean that the database MUST be placed in that specific folder on any PC? Is there a way to simply build the database into the compile so the program automatically generates the database when installed on anyones computer?
3.) This might be fixed by fixing the previous two issues, but if I compile my program and try to install it, I get an error message "Could not download the application.The application is missing required files."
'Already declared the DataSet as dtFile and SqlDataAdapter as daFile
Dim SqlQuery as String
SqlQuery = "Select * from FileRegister where FILE_NO='" & frmBsearch.txtFileNo.Text.Trim & "'"
daFile = New SqlClient.SqlDataAdapter(SqlQuery , SQLConnection)
daFile.Fill(dtFile , "FileRegister")
frmBsearch.txtSPrefix.DataBindings.Add("text", dtFile, "FileRegister.Prefix")
frmBsearch.txtSPlotNo.DataBindings.Add("text", dtFile, "FileRegister.Plot_No")
frmBsearch.txtSBlockNo.DataBindings.Add("text", dtFile, "FileRegister.Block_No")
How can I add a new row and save those records in the TextBoxes?
I have a form with some textboxes in it. Not all the boxes are mandatory fields. I also have a store procedure that saves the records to the DB. when I try to save a record, I get an error PLS-00306. I am passing the required number of parameters to the sp. When I populate all the fields, the record is saved but NOT when some fields are left blank.
If txtInvoiceRef.Text = Nothing Then
strSQL.Parameters.Add(New OracleParameter("varInvoiceID", OracleDbType.Varchar2, 50, ParameterDirection.Input)).Value = System.DBNull.Value
ElseIf txtPaymentDate.Text = Nothing Then
strSQL.Parameters.Add(New OracleParameter("varPaymentDate", OracleDbType.Date,
[Code] .....
I am new in VB .NET 2010, I am trying to code ADD, EDIT, UPDATE, DELETE simple function, I use SQL Server 2008, I have done saving function but Im stack with duplicate records, How to code if records exist then prompt a message, if not then it will save.
View 3 Repliesi have a register form and a dataset called clifs_project21Dataset.xsd
i just want to update
de info from register form to dataset and i use acces 2007
How can I make the record save (like on access - it can be saved and from the main screen you can choose the job (Im basing this off the access free file "customer service")
Im essentially re creating that but on vb.net as I prefer to use vb.net as it is slightly easier for me.
My question is how can I make it save the record both as a file and on the main page so that the employee can go through the jobs (or search for the job), choose which job, open it and see the form saved with all the information still on it - yet still editable.
In a single table i want to save three records in at a time. with a single query. how i can do? can u give a simple example?
View 5 Replieshow to save records in listview into ms access database table using a button, i've tried with my codes but nothing is saved in the database `Inline Code Example Here`
private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim con As New OleDbConnection
[Code].....
i'm having problem saving my records into database here's my code
[Code]...
I managed to displayed records from two tables in one datagridview and the first column being a combobox. Now, I would like to get those records displayed and save it to another table. this what I did.
For i As Integer = 0 To dtgLoad.Rows.Count - 1
Using command As New SqlCommand("INSERT INTO tblteachersload (Teacher ,SubjectName) " & _
"VALUES (@Teacher, @Subject)", cnn)
With command.Parameters
.AddWithValue("@Teacher", Me.dtgLoad("Column1", 0).Value)
[Code] ......
I would like to loop through the records of the datagridview and then save the same to a table.
I want to create a sub that gets changes from my typed dataset and datatable. But it says mydatatable is not a public member of dataset. Passing in as objects.
Public Sub GetRateChanges(ByVal myDataSet, ByVal myDataTable)
If myDataSet.HasChanges(DataRowState.Modified Or DataRowState.Added) Then
' Create DataSet variable.
Dim xDataSet As DataSet
[CODE]...
Another question. . I pull this infor from a view via tableadapter and it comes from several different tables.. How could I save my changes and insert the new records to the appropriate tables>?
I need to be able to save, edit, and delete records in an access database through vb2008. Editing and deleting records works perfect, but I cannot save new records. Can anyone assist?
Here is my code
Imports System.Data.OleDb
Public Class Main_Form
Dim con As OleDbConnection
Dim cmd As OleDbCommand
[code].....
My code below will save records to my database as long as all the parameter have values. One of the parameter is @MI (middle initial), however, there are times that student have no middle initial so when I click my button I get error. I want to still save the record even if one of the parameter value is missing.
[code]...
I don't know why it is not saved to the table. Here is my code.
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles btnSave.Click
Try
[Code]....
i am doing with deleting row permenately from database currently,but the problem i face right is that i can delete row from datagridview only, but the data inside database remains unchange.I want to delete a row which i selected determinately when i click a delete button .
Here is the code that i written...
Private Sub Delete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Delete.Click
conn_1.Open()
Dim sqladapter_1 As SqlClient.SqlDataAdapter = New SqlClient.SqlDataAdapter("select * from Table_1", conn_1)
sqladapter_1.Fill(sa, "Table_1")
[code]....
i add a datasoure from sql server and VS create a file : ExampleDataSet.xsd..Now i want to remove that datasoure. i tried to remove ExampleData Set.xsd file and VS show many errors. how can i delete permanently that datasoure ?
View 6 RepliesHow can I keep table in my application Permanently. after colse the application the table will be there. When I need I will able to sohow the Tabel in datagrideview.
View 2 RepliesI keep table in my application Permanently after colse the application the table will be there. When I need I will able to sohow the Tabel in datagrideview.
View 4 RepliesI have been researching on the possibilities of programmatically burning comments on pdf files permanently but so far I have not been successful. Has anyone writen code to do this or point me in the right direction? Permanently burn comments into pdf?
View 2 RepliesI can't get is to save variables permanently. For instance, say you run your project and in the source code you have Button1_click s=textbox1.text (s is the variable I declared) Button2_click s=label1.text. Say you type some thing into textbox1 then click button1. Then you click button2. Is it possible to make it that the next time you run the program the text you typed into textbox1.text last time is displayed when you click button2? I am using windows form.
View 3 Repliesat my collage we have to rename all buttons and labels to represent the type of thing the button, label or text box etc do For instance if I had an OK button I would change the Text and (Name) of the button in the Properties section from Button1 to BtnOk, if it is a Label I have to change it to LblOk etc I was wondering if there is a way to change the default (Name) Button1 to (Name) Btn1 and so on so that I only have to click on the 1 and type my description, rather than having to type the abbreviation for the type of object every-time also ?
View 12 RepliesI'm currently trying to delete data from a dataset/datasource/database using visual basic. So here is the run down: I've built a program that can add, delete, and modify customer information from an Access database and I just got the add function working. Meaning, I can now add customers to the database and it is sticking to the database. I re-ran the program and even restarted the computer the computer and the data is in the database. This works fine. However, now I want to get the delete button working but I'm not sure why it isn't deleting some of the fake entries I made just to test out the add feature.Here is the code I am using:
Dim delCompany As UMD3.CompaniesRow
delCompany = UMD3.Companies.FindByCompany (NOT SURE WHAT GOES HERE)
delCompany.Delete ()
[code].....
created a class that adds a TextBox with some custom properties to the toolbox. But it's only available when the project I created it in is opened itself. I'd like to have available it in the toolbox at all times.
View 3 RepliesI made a customized TextBox that I'd like to permanently add to the toolbox. But when I close the project that I created it in, my new control also disappears and I have to copy/paste or import the class-code every time I want to use it. Is there a way to get the control in the toolbox "forever"?I tried to enclose the class in a "Namespace CustomClasses" statement and changed the root namespace in the project properties to "CustomClasses", but nothing of what I tried is permanent. I prefer to store my classes in a "real" root namespace, in the same root as the microsoft and system namespaces.
View 4 RepliesIm using the webbrowser control in my application, but i want to permanently change the user agent when im navigating to sites.
I have tried the extended use of the .Navigate function for the webbrowser, but when the user navigates the browser, or when im beeing redirected by the site it goes back to the vb user-agent info.
Alternatly: Is there any way to catch the postinfo and http headers when the webbrowser control navigates to a new url?
I need to permanently store a string or maybe a object in my application. And yes, I have tried the application settings (My.Settings).
My.Settings.something = "hi" will save "hi" into something, and when i use msgbox to output the data, it works. The thing is; when I copy my application to somewhere else on my computer it is gone. I guess the settings is saved to some file at the filesystem, and when I move my file it also creates a new settings file. How can I store a string inside my application, and also move the application later on?
i have taken one combobox in form1, another in form2. when i want to add an item permanently in combobox in form1 it should automatically added in the form2's combobox permanently and at the same time it should be added into the database(ms access) also.
View 1 Replies