Database With 3 Tables Which Depend On Each Others ID
Sep 27, 2011
I have a database (acces) with 3 tables Table one has Id nr 1000 table 2 1000000 table 3 Id nr 1000000000 First table makes Id nr from 1001 to 1999. On Id nr 1001 i have multiple ID nr on the seccond table 10010000 to 10019999 and on the second table ID nr 10010001 i have multiple ID nr on the third table. This will last a while but the tables will fill up. Now i work with the Max value to find the highest ID number and add one to it.
[Code]...
View 4 Replies
ADVERTISEMENT
Jul 25, 2012
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
Following is example code.
Dim
SQLconnect As New SQLite.SQLiteConnection()
Dim SQLcommand As SQLiteCommand
CODE:.....................
View 4 Replies
Sep 19, 2010
i want to create a dropdown list which depend on each other. as example. the 1st dropdown list will let the user to select the type between sector or subsector.
select type: 1) sector
2) subsector
if the user choose sector, the sector value will be appear in the dropdownlist
select sector: 1)technology
2) trading
3) industrial
but if the user choose subsector, the subsector value will be appear in the dropdownlist
select subsector: 1) computer
2) utilities
3) consumer
i try to use the hide code but it turns out to be error. i think because of the data overloading.
View 3 Replies
Dec 17, 2009
I want to create multiple dataset depend on situation. dataset number may vary each time.how can we create multiple dataset
View 4 Replies
May 26, 2011
At runtime, I have a collection of rows (Row class). Each of them consist of column values, represented by instances of a ColumnValue class. The name of the columns are determined at runtime, and are in a separate columns descriptor collection (Column class).I want to create a DataGridView that displays all Row instances. Of course, the DataGridView's columns shall be exactly those specified by the Column instances in the containing collection.But since DataGridView's columns can fetch their values from a list item's public properties only, and I cannot easily define such a property at runtime, I cannot use DataGridView to display the tabular data.
' Classes for table structure representation
Public Class TColumn ' describes my columns
Public Name As String
[code].....
View 1 Replies
Jan 31, 2012
I try to disable a tabpages in .net but it doesn't work properly , if try to do this Me.TabControl1.TabPages(1).Enabled = False it let me enter to de tabpages .
Bhagabat Dayal Dash Software Developer Qlogix Solutions(India)
View 1 Replies
Dec 27, 2010
how to make my progress bar work depend on the program processes. if my the process take a long time to end, the progress bar will work the same else if the process work for a short time, it work the same also.i've made this code so far
'for the timer tick sub
ProgressBar2.Value = ProgressBar2.Value + 1
If ProgressBar2.Value = ProgressBar2.Maximum Then
[code]....
View 2 Replies
Aug 13, 2009
I have Logon and Detail forms. In Detail form combobox populated by Employee table. I would like, when user logon and open Detail form the combobox will automatically display name of employee who logon.
View 8 Replies
Aug 14, 2009
I am trying to make a database, fill it with tables and then fill the tables. I am having problems connecting to the server and am really not sure why. I have posted this thread in two areas of this site because I was not sure what was the best area to put it in. [code]
View 3 Replies
Jul 20, 2010
For using you will need this two dll, I'm sure everybody knows that, but its probably the best.
[URLs] (this example use itextsharp-4.1.6 )
My Question
THe following Code will make a Graph, create a Bitmap, and start Adobe-Reade to present the Graph inside. The whole code works fine. I only have trouble, when I use this line:
Dim Doc As New iTextSharp.text.Document (iTextSharp.text.PageSize.A4.Rotate())
Instead of this line:
Dim Doc As New iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 10, 10, 10, 10)
The quality of of the whole Picture is not good then. Eventhough when I change width and hight for the Rectangle. Then I tried to change the Bitmap width and hight, but in that case nothing happends? Any way, to handle the quality for using why nothing happens, when I change height or width in this line:
Dim Doc As New iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 10, 10, 10, 10)
Imports ZedGraph
Imports iTextSharp
Imports iTextSharp.text.pdf
[Code] .....
View 3 Replies
Mar 12, 2010
how can I get all Tables from a Database, which I'm connected to. By the way, this is a MSDE Database.
View 3 Replies
Mar 7, 2011
I've got two different tables in my database. One is Class and other one is LAREACT and both of them have a key field of MAIN FACILITY USED. In the following part of my code a DataTable will be generated based on the sum of the records on both tables.Based on the bellow code ACTIVITYLOOKUP datatable is having "MAIN FACILITY USED","Description","TypeName","Type","Id" columns. The issue happens when there is a row with the same MAIN FACILITY USED entity. The datatable will not show it (filter it?). Do you know where the problem lies? and how it will be fixed without any modification in database?
[Code]...
View 1 Replies
Oct 7, 2010
How to bind a database having 2 or more tables in it using vb.net.
View 1 Replies
Nov 7, 2010
I have a form with 3 datagridview controls that are bound to tables in a sql database. When the form loads for the first time the data is displayed correctly. If I add data to the db on another form then show the first form again the data displayed does not include the new data. If I close the app and then open it again then the new data is displayed.I cannot figure out how to manually refresh the gridview. I have tried calling the fill method of the adapter, using the refresh method of the gridview and parent control and form with still no luck. I have a ASP.net project I'm working on also and it is so easy to refresh the sqldatacontrol and the gridview and I would have though a win form would have been just as easy if not easier.
View 2 Replies
Apr 9, 2010
I have a sql database and am using VB express 2008 in WPF and I want to know, how do I clear every record from a table in a dataset?
View 12 Replies
Mar 26, 2009
how to create a local database, create some tables and set relations between those tables (just like in access) and I can show, add, edit and delete that data from a form.
but what I have yet to figure out is if I have 2 tables (i.e: tbleName, tblFood) and I want to have multiple tblFood items show for every 1 tblName item.
I've found that if I add a txtbox of the name table and a datagrid of the food table, the datagrid view shows all the food records, not just the ones for the name txtbox.
View 3 Replies
May 28, 2009
this is my code but is not correct
Public Sub ChangePosition()
If Me.BindingContext(DataSet1, "t_bul").Position = -1 Then
Label1.Text = "Record 0 from 0 "
[Code]....
View 2 Replies
Nov 5, 2010
My first method is trying to get all entries in one of the database tables. However when I try to build the solution this is the error I get:
<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste">Error
1 Value of type 'String' cannot be converted to '1-dimensional array of String'.[code]....
View 2 Replies
Oct 9, 2008
I am trying to connect to a SQL DB and loop through some tables. My tables are linked on the EMPLOYID field between UPR00100 and UPR00102. I want to write data as follows:
Level1, EMPLOYID, EmpName (from UPR00100) Level4, EMPLOYID, Address1, Address2,etc..
(from UPR00102)
Here is my data access code. I don't know how to code the loop. I know how to do it in SQL using a cursor but not VB 2005
Option Explicit On
Option Strict On
Imports System.Data
Imports system.Data.SqlClient
Module Module1
[Code] .....
View 2 Replies
Jun 11, 2011
I dont know how to link my table to the database yet i already finished connecting to the application itself. i have four fields on the form as well in the database table. that is
1.word
2.lug_trans
3.Eng_trans
4.meaning
the same fields appear in the database tables. i have to fill and hen after extract the data and display it on another form in four labels
View 2 Replies
Jun 12, 2009
hello everyone, i m using treeview control in vb .net . How do we usee a recursive function to add data at different levels from different tables in a database.
View 2 Replies
Mar 20, 2011
I was wondering if there is any way to bind TWO different database tables to ONE textbox in VB? I've spent the whole day going through tutorials and different webpages and I've found nothing at all on this...
Well let me try to explain what I want to do exactly: basically I have multiple buttons on 'Form 1' and a textbox on 'Form 2' asking the user to insert a value which will then go to an Access database. But here is where it gets tricky for me: IF the user presses Button 1, the Value inserted on Form 2 will go to a field in the database whereas if the user presses Button 2 to open Form 2, then the value will go to somewhere else and so on.
This would be easy to do if I was to create multiple forms or multiple textboxes, 1 for each button but what I really need is 1 form/1 textbox that would work for all of them... [URL]
View 8 Replies
Jun 21, 2010
The problem I'm having is that I cant get get the SQL statement to show all the tables within the database.
The code im using is as follows:
Imports System.Data.OleDb
Public Class frmtables
Dim objconnect As OleDbConnection
[Code].....
View 3 Replies
Jul 23, 2011
I am using visual studio 2010 with vb environment, I am connecting to a microsoft access database with 2 tables, one table per form, i can add a record and save it no problem, but when I update a existing record i receive the error, this happens on both tables, i am using the standard navigation buttons on the forms.
View 3 Replies
Oct 29, 2011
This is my coding in vb.net. I have used two database (1) party (2)partydup. Structure of the tables: party table: fields :code, name1,add1,add2 etc. partyduptable: fields: code, description
In both tables i have common field ("code"). I tried to retrieve the value of "description" field from partydup table when the "code" field in both the tables are same. I run the below coding but it is showing the error as "No data exists for the row/column". But i have a record which contains the code field value as 123 in both the tables. Still it is showing the error.
Imports System.IO
Imports System.Data.OleDb
Imports System.Data.OleDb.OleDbConnection
[Code].....
View 6 Replies
Jan 15, 2012
I was just wondering if I can retrieve two tables from my database to one form? because i'm trying it but it doesn't seem to be working. just the first table i'm trying to retrieve is working.
View 7 Replies
Mar 9, 2010
I'm Using vb 2008 and an access DB.I have 2 tables in the DB which is transaction and products.When a Customer Buy product the transaction will record and the stock of that product will deduct accdg to the quantity bought by the customer. Myproblem is products table didn't update. Stock of that product still didn't change.
View 5 Replies
Nov 17, 2010
Is it possible to insert/put a Timer inside the Database?Let say in my Database/Tables i have MemID, Name, Membership Date and Status (Active/Expired).for example MemID [ 1 ] Name [ Juan Paolo ] Membership Date [11-17-10] Status [ Timer ]in Status is it possible to save the time even while the program is close?..or code like if MemID 1 reach 2 Days all of the information of MemID 1 will be clear and Status will become [ EXPIRED ] , while timer is running the Status is Active, and if the Timer Reach 2 Days the Status will become [ EXPIRED ]
View 2 Replies
Sep 23, 2010
I have a problem using my database in which I have a table with product names, codes, prices and information. I use the below method to get connected to my database and tables.
Dim dtCOP As New AmetailorDataSet.COPDataTableDim adapterCOP As New AmetailorDataSetTableAdapters.COPTableAdapter
adapterCOP.Fill(dtCOP)
[code]......
View 1 Replies
Dec 8, 2011
I know this is a very basic question but it has been awhile since I created a project with a database( been using a lot of XML). I created a database then selected it as a data source added some controls to some forms. Then I realized I needed to adjust some tables and I needed to add a whole new table. I deleted the controls and updated the tables that needed some adjustment. Now I would like another table. Can I disassociate the data source and do my adjustment to the database?
Have I created a problem with the binding object since I just deleted the controls on the form. I have written classes and some logic or else I might just start over. I guess I could copy those files but I am wondering if there is an easy way to fix what I have started. I realize that there are alot of questions here so any resource on how to modify a database that is attached to a VB.Net project.
View 5 Replies
