i have problem with an update button for my application.The code for the addnewrow and updateinformation button is as follow
Private Sub btnUpdate_Click(sender As System.Object, e As System.EventArgs) Handles btnUpdate.Click
btnUpdate.Enabled = False
btnDelete.Enabled = True[code]......
I am using visual studio 2002,and microsoft access,and i am trying to update a database when i click in a button, depending of what i enter in 2 textboxes.the code goes like this:
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cmdUpdate As New OleDb.OleDbCommand("Update Shippers set CompanyName=Textbox1.Text where ShipperID=Textbox2.Text", cnn)
End Sub
I'm doing it this way, but it does not work.,
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
GRName = TextBox1.Text
[code]....
I have two buttons on a form , clock in and clock out, and i have two fields in an access database, fldCheckIn and fldCheckOut, when i click the check in button i want it to get the current time and set it to the field in the database
View 13 RepliesI have used this form to add new records on my database(ms access) in my database I have a column name 'ID' which is my primary key 'ID' is set as auto number. Now I am having a trouble on creating my update and delete button it's always saying "cannot be delete/update"
Here's my code on add, update and delete
Public Sub SaveRecord()
Try
Dim dbConn As OleDbConnection
Dim dbInsert As New OleDbCommand
Dim str1, str2, str3, str4, str5, str6, str7, str8, str9 As String
[Code] .....
Note my add is working perfectly fine. I just can find the error on my delete and update. Also I have used this to view it to my datagrid I don't know if its the right thing but it's working fine too.
'declared dbpath globally'
Dim dbPath As String = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=../VG.mdb;Persist Security Info=False"
[Code] .....
Another thing is how to code each textbox and combobox to bind it to my records so that when I click on the datagridview each column will be distributed on each respective textbox.
my save button not work
Private Sub btn_save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_save.Click
[code].....
I have a datagridview and each time i enter values in database the values are not reflected in the datagrid untill i load the form again.I want a method tat updates the datagridview without reloading the form.M using Microsoft Access 2003 database.
View 4 RepliesOk, so I have created an Access database, and everything is working fine (much to my amazement) except for one thing. I want the database "update" button to validate the input before applying it to the dataset, and if there is an error (empty field) I want it to pop a message and highlight the text box in question where the error occured (there are 7 textboxes).
How precisely do I go about doing that?
CODE:
This is what I have so far for the update button. I attempted the "textbox1.isnullorempty"
I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
update statement, i am trying to update a row within a access 2007 database here is my code.
[Code]...
I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesWhat is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
[CODE]...
is there a way to update a database row with the update command by first defining all parameters and then all values just like you can in the insert command? "insert into table1 (parameter1,parameter2,....) values (value1, value2,....)"something like "set table1 (parameter1, parameter2) values (value1,value 2,...) where ...."?because I only know the syntax to define each parameters value "set table parameter1=value, parameter2=value2... where"
View 8 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
[Code]...
I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
[Code]...
i want to update my inventory table in database from another database name. Example: In VB, i had a form named Orderform. User need to select e product that they want and key in the quantity. all these information are able to store inside my database named ORDERTAB. but now the problem is i wanted to update another field in my database named INVENTORY by minus the quantity tat the user had key previously. i totally had no idea how it going to works.
View 3 RepliesI am trying to add the update button on my form. The application run's fine but when I change the GPRDSTATUS - to another value and click Update buton the following exception is given "NullReference Exception was unhandled". Highlighting this line of code :
objDataAdapter.Fill(objDataSet, "DistinctGP27").
This is the piece of code I used to want to Update the the table DistinctGP27
Private Sub BtnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnUpdate.Click
Dim objConnection As New SqlConnection _
[Code].....
I have a db with three tables. On the form i drop the first table, then the second (related), then the third (related to the second). I use 1 dataset and three datagridviews. The problem is that i can't update the three tables when i use the update button. I use VB 2008.
View 17 Repliesi'm new in vb.net and i have problem with my project. cthis problem.
-update button
Dim con As New OleDb.OleDbConnection(My.Settings.TREViS_03_ConnectionString)
Dim com As New OleDb.OleDbCommand
[code].....
I have a DGV I am working on, and I have many columns.dgv bind to two table my problem with update button dose not update and gives me wrong massege ""Dynamic SQL generation is not supported against multiple base tables"
Imports System.Data
Imports System.Data.OleDb
Public Class Form4
[code]....
I'm trying to make a button that displays an image, that's easy, but the image is an editable icon so I want the image on the button to be updated every time the form is started how can this be done?
View 3 RepliesI have a simple ASP.NET page:
sub Page_Load
//Get data form databse and show it
end sub
sud deletsome(Source As Object, e As EventArgs)
//delete one record when user click on submit button
end sub
When I click the button, the page reload, all the data have no change, I must re-enter the page again, the record I have delete disappear. Can you show me why? The full code here:
[Code]...
I've tried to create an update button for my datagrid, however it doesn't seem to want to update, whatever I try. Here's my
[Code]...
I'm a beginner to Visual Basic, and I made a simple program, however I want to put a 'check update' button in it... It consists of downloading a txt file that contains three numbers, if it match with the version of the program it says 'you already have the most up-to-date version' or else it asks you to download the update and then bring you to the dev blog of the program I made, however, when I download that file, it brings me a blank txt file instead of the one I uploaded into the site. By the way, I'm downloading it through HTTP.
[Code]...
How to refresh a datagridview data by pressing the button? That is after the data has been deleted from the database, the datagridview will show no data there if I have one row of data only. Currently I tried something like datagridview1.update() but doesn't work.
View 3 RepliesI Have a Table name as sales one and another is balance i want to use insert command in sales and update for the balance table what can i do
[Code].....
it showing a error as Conversion from string " UPDATE BALANCE SET OBBALANCE = " to type 'Integer' is not valid.
I have a form that i am entering data into and then click a save button to update to the database. but i can not give it to update.[code]....
View 5 RepliesI got the database to update, but it only does it for the first row selected not for the others.
Protected Sub btnUpdate_Click(ByVal sender As Object, ByVal e As EventArgs)
For Each row As GridViewRow In GridView6.Rows
' Selects the text from the TextBox
Dim selectedcheck As CheckBox = CType(row.FindControl("chkselect"), CheckBox)
If selectedcheck.Checked = True Then
[Code]...
Well on my application there is a check for update button and it needs administrative privileges in order for it to download the update (it needs to make a version change in the registry) and I don't have permission to. How can I make it so it asks for permission?
View 2 RepliesI'm trying to create a Library System in VB 2010 which is connected to a 2007 MS Access Database manually. I was successful to create a "Search" button where it displays content from the database based on the user's entries on several text boxes.
The result is shown on a Data Grid which I set to allow Editing on it. My problem now is I can't find a way to create an "Edit" button. My idea is basically allow the user to search, let the result be shown on the data grid, edit the data grid, and click the Edit button to save the updated records back to the database.
My question is it possible to create such button? Here is the code that I use to connect to the data base for the Search button.
[CODE...]