I'm new to databases under vb.net although I've used them extensivley under VB6.I have a main form with a DataGridView on it. Thats connected to the following bits- _TWC_Viewer_SubmissionsDataSet, ViewerDataBindingSource, ViewerDataTableAdapterm and TableAdapterManager. All this was etup by the VB wizard. The database table is named ViewerData.This all does it job very nicely.
Secondly, I have another form which is setup so that when you click on a main form record line it opens up the second form for in depth record editing.The second form is a bunch of text boxes ect to represent each field.This form has its own set of database bits- _TWC_Viewer_SubmissionsDataSet,ViewerDataBindingSource, ViewerDataTableAdapter, TableAdapterManager and ViewerDataBindingNavigator.This form also works fine and does what it should.The problem is with a 3rd area. Its all in code and creates its own temporary dataset. After its done its job, its saves its results back into the database which also works ok.However, the changes in teh database are not being reflected back to the controls on either form. If I kill the app and restart it then the updates are in the database so its just a form updating problem.
I have an access database that I would like to add a row to. Contents of the row are entered through text boxes. The problem I am running into is the data is not being saved to the the dataset. It only saves to the TableAdapter and is visible in DataGridView.[code]
I have a datagridview with a checkbox column at the beginning, what i want to happen is that when I press the Ok button it will update the Requested row in my EquipmentDetail table with the corresponding checked chekcboxes.
The problem is that when I check even only one checkbox All of the rows are updated into true even if its not checked in the datagridview
I have a webpage that is used to modify information in a database. The information is properly pulled from the database and properly displayed in their appropriate text boxes. The problem arises when i change the information and try to resubmit it to be saved. Unfortunately it never takes my edited information and reverts back to the original value that was loaded when the page was loaded.
All of the code has been tested out side of the masterpage and it is working properly so i am under the impression that it has something to do with the use of the masterpage. If my understanding is correct i cannot just do something like me.txtName.text to address an object in the content pages. So here is a snippet of the code and the portion that i am assuming has a problem.
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The code shows the two methods that i have used to try and use findcontrol to access the text boxes. Both methods seem to locate the textboxes but once I pass the values to linksUpd it reverts back to the value that was originally loaded into the page and discards all of my changes.
I m working on an school management application, i design the database in access2003 and forms in vb.net2005. but i dont have any idea about the database conectivity. with the help of a book to connect with the db but i cannot save the data in the mdb file. in my application 1 add the followin buttons add new record modify record delete search using id or enrolment no.
I'm trying to edit my sql database using VB Forms.I went ahead and connected my database to VB and I see how to pull data from my database to VB, but I'm not understnading how to use a form to add/edit/delete data from the database.Basically I would be looking to add to a table:
Table Name: People Row 1: First Name Row 2: Last Name
Edit would be the same type of thing except I think I would pull the data from the database to populate a table, than how would I save the changes after I changed the information To delete I'm assuming would be similar to edit I would simply pull the data from the database than using a delete button would delete it.What I don't understand is how to create the SQL statement in VB so that it'll execute it properly in my database.
i was working a program that has two forms. first form1 has a datagridview for viewing. with a button ADD and SAVE and disregardchanges.then when i click add another form2 with textboxes to input data. with buttons ADDTODATA, ADDANOTHER and CLOSE when i click ADDTODATA the data will add to datagridview in form 1 and when i click ADDANOTHER i also input another add ADD to datagridview to view.and when i get back to form 1 i have a choice if i will SAVE ot DISREGARDCHANGES. if i click save all data will save.
I used this code in adding data to table.
Dim dsNewRow As DataRow dsNewRow = ds2.Tables("NewEmpChildren").NewRow() dsNewRow.Item("dbIDNo") = txtIDNo.Text
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but nothing changes. it seems that my connection is close when i close form2. how can i make my connection still open when i close form two or any code that will substitute with my code. im a student and this is for my project.
im trying to access sqlserver management studio database using forms in vb.net...m using a button and i want to get access to the database when i click on that button....the code is given below....wen i tried the same code without using forms,this is working fine but it is not working when i use forms....
Imports System.Data.SqlClient Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim strcon As String = "Data Source=.\sqlexpress;Initial Catalog=employee;Integrated Security=True"
I am using Vb 2005 Express and am creating forms that need to access some MS ACCESS database.Now,I got the code(m thinking its right) but adding a reference from Project Menu is my problem.I simply need to select ADODB from the Reference list but i don't have it as an option.
Dim Conn as new ADODB.Connection Dim Rec as new ADODB.Recordset Conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=Projecttables.mdb" Conn.Open()
how to create forms and connect them to a database etc. When you see some applications for using databases you dont just get the form in the middle of the screen you get a sort of form inside a surrounding platform. A bit like running Access DB inside the runtime environment.How do I do this in VB Express?
I have a treeview on a form and I want to allow the user to create a tree structure of their choice. What I mean by that is no limit to parent and child combinations, so basically have the same functionality as in Window Explorer.
Now comes the problem, what I want to be able to do is store this tree view hierarchy in a database, so that when they add a new node to the treeview it is stored in the database at the correct level. Then if the user closes the form and re-opens it loads the treeview hierarchy from the database.
I would really apreshiate some guidance on database table stucture and how I can loop through and build the treeview
i am a vfp devloper i am working there fine . but i want to move to vb.net . i want to start my payroll project from vfp to vb.net. in vfp am using vfp as front end and mysql as bacend . in my vfp project i am using spt( sql pass through) to connect mysql to vfp . so will any body tell me how to do this in vb.net
i am new to vb.net and dont have any idea about using datareader.i am right now doing a project on vb.net and am facing an issue.i have a form, where in i have to select the matching records from the database and show it in various textfields. as far as the query execution is concerned, i have successfully completed it, but i am facing an issue now. Suppose, i have an Id of a student, and he has registered for 3 courses, when i give the query something like select students.studentid,courseid,midtermmarks,finalterm marks from marks,students where students.studentid=course.studentid;it gives me multiple records.my doubt is, when i get multiple records, and which is true(in the case a student has registered for multiple courses), how can i traverse through the resultset and fetch the values in the respective textfields.
I have this 4 tables. My problem is I have to save the treeNodes in the 4 tables. How can I determine that a specific treenode will be save in one specific table?
How can we use the database objects from one form to another? Eg. In my Login form a person enters his user-name and password & if it is correct, the code directs him to another form(Form2). Now in Form2 How will I get which person has entered in?
I am currently helping to write a Visual Basics program that was originally writing with access.The Original Access program has been used and modified over the past 5 years, During that time the database has gotten pretty big.The problem I am having is If I add the entire database to my data sources it creates data tables for every Table and Stored procedure even when they are not currently used in the program resulting in a 20+ minute build time just to debug.I am currently only adding Tables and Stored Procedures as i need them, so its not that much of a problem now, but as I continue to work and add tables the build time is going to go back up, and Id hate to have to wait 20+ minutes to test a small tweak I made.
I am using Forms Based Authentication I have extended the Forms Authentication Tables creating a custom table called Profile_Contact that holds the user's GUID, username, email address, and other information. I have another table called Profile_Account which holds company account information such as Company Name, address info, phone numbers etc. This table has a Key Field called IDProfileAccount.
The Intranet was done with forms authentication and stored in a SQL database. how I go about (if possible) authenticating a login in a vb.net project that queries the user settings from the ASP.Net database that was created on the SQL server for the forms Authentication.
I'm testing database programming in vb.NET 2008 at the moment and try to find a way to use a database connection in different forms, so e.g. I put the the database-connection-component into one of the forms. I know, I could access it by e.g. form1.databaseconnection.xxx, but is this the best way or can I "put" the connection into something more abstract which all forms know about?
I have done a dummy project to understand how do i have to deal with database with this new visual studio 2008 using VB. The code autogenerated to save new record in a table is:
Private Sub UtentiBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles UtentiBindingNavigatorSaveItem.Click Me.Validate() Me.UtentiBindingSource.EndEdit() Me.TableAdapterManager.UpdateAll(Me.databaseDataSetUtenti) End Sub
I have created my own login form that try to access the table "utenti" handled on the users form (described before).
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The problem is that from this code i cannot "see" new users added from the automatically created databinding of the user form...
I have searched the forums for an answer to my problem, but I have not found any solution.First of all, I know that the datagridview is "supposed" to automatically refresh when new data is entered, but in my case it does not seem to work.
I am using VS2008, with an Access 2007 database. The database has 2 tables, but I am only trying to work with 1 of those tables.For this project I have 3 forms that I am working with. The main form calls a form that has an embedded datagridview for the 1 table in it.
By double clicking on a row, this form hides (Me.Hide()), and the second form appears where the new data is entered for the row selected.
Once the data is saved from the second form, using "Update", the second form hides, bring me back to the main form once again.
If I then click on the button to call up the form with the datagridview, it appears, but not with the new data on it. If I use the "x" button (top right corner) to close this form, and then click on the button to call the form once more, it appears with the correct data.I guess my question comes down to this. Do I need to not use Me.Hide() on this form, and if so, what would I use to make sure that the next time I show the form the data has been updated?
Recently, someone asked me to code a program for them in Visual Stuido. What they need is a program that allows them to enter names, and each name has to pick a option (i was thinking that the user would select a radio button) and each option could only be selected a limited number of times.
