i've implemented a system on vb.net 2010 having its database on Ms Access 2010 (.accdb). i have to read records from the tables to a combo box by binding its datasource to the tables directly. the problem is that the data in the combo box is not sorted since in the database itself the records are not sorted. how can i achieve the sorting?
View 1 RepliesI'm writing an assignment in VB for a class which displays records from an Access database. It goes as follows:
From a "Rooms" table, I get the rooms to be displayed in a combo box along with 3 checkboxes which will tell me if they have a jacuzzi, private access of a fire place. From a different table in the same database I need to display in text boxes the bed size, weekday and weekend prices for booking each room. The text boxes should display the correct information according to what was selected in the combo box, but I can't get that to work! The checkboxes work fine, but the text boxes stay the same.
Here's what I have so far:
Private Sub Rooms_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
Dim RoomsData As New RoomsDataTier
Dim RoomsDataSet As New CottagesDataSet
RoomsDataSet = RoomsData.GetRooms
[Code] .....
I have this piece of code wich works perfectly when inserting records into one table using records from another table. My question is that now i need to create another table by using records from 3 other tables (tables are related). Can i use aliases on the column names, like on Oracle SqlPlus? How will be the syntax of the 'INSERT INTO SQL statement?
Dim MyConn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
Dim tmpSQL As String
MyConn = New ADODB.Connection
[code]....
I had created a report using Reportviewer control(VS2008+MS-Access), the report displays all the records from Access Db correctly but i need to sort the records and display
View 1 RepliesI have a number of records being displayed in a data grid view, but I want to be able to sort these records via the date. Clicking at the top of the column just sorts them in relation to the first number of the date.
View 1 RepliesI'm looking for a simple and efficient way to sort up to 60,000 strings that are 3000 chars long in reverse order and save them back out to a text file.
I originally thought of a doubly linked list, but then I realized that we aren't privileged enough to have pointers.
Is there some other way I can create an efficient linked list without pointers?
The code below put in the DB 0 in a few fields...Normally the query sort a large amount of records and off course the code take a little time to do the job...My question is simple...This is another way to get more fast this job?
Dim con As New OleDb.OleDbConnection
Dim ds As New DataSet
Dim sql As String
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = " & drive & IDempresa
con.Open()
[Code] .....
I have a 5 tables in my database and i want to access all my tables togather at a time.e.g.I have a code for one table i.e. rs.Open "select * from Group_info", con, adOpenDynamic, adLockBatchOptimistic. instead of Group_info table i want to access 5 tables also as Login_table,User_info table,group_name table etc. How i do that
View 11 Repliesi want to show records from other tables but this error occurs
Sub fillorderdetail()
conn.Open()
Dim adpt As New SqlDataAdapter("select * from orderdetail", conn)
[Code].....
i have 3 tables in ms access that is patient , NOK,and admission they have related fields, i am using vb 2005. when i delete a record from the patient table i want the related records from the other tables to be deleted.
View 1 RepliesHow can I use Linq to SQL in Vb.net to combine the records of two tables into a datagrid such as shown in this example:Assume i have two tables tbl1 and tbl2
tbl1:
col1 col2
A1 B1
A2 B2
tbl2:
[Code]...
I'm trying to utilize two tables with SQLReader but it's not working as planned.This is a simple explanation:
Table1 has columns c1 and c2, both integer.
Table2 has column data that is string (numeric with hyphen separators).
A typical record has this: : 20123-456-9834-167
The user inputs two integer values in variables uf2 and uf3.I want to get records from table1 that match the criteria:
1. Column c2 equals uf2.
2. A table2 record is found that:
a. has "-" + c1 at the end. (e.g. If c1 value is 167, the record above matches.)
b. has "-" + uf3 elsewhere in the record. (e.g. If uf3 value is 456, the record above matches.)
There is no "relationship" between the two tables.
The pertinent SQL code I have tried is similar to this:
dim strQuery as string = "SELECT c1, c2, data FROM table1, table2 WHERE " & _
"c2 = @f2 AND data LIKE '%-' + c1 AND " & _[code].....
I want to search the records from the textbox and display the records to the datagridview, if there are no records, just display empty on the datagridview.
this is not working:
Dim sqlsearch As String
sqlsearch = "SELECT * FROM setting WHERE mname LIKE '%" & TextBox.Text
[code].....
How can i execute my query to insert records in tables?[code]...
View 7 RepliesI've got a form where a user enters data. When the user submits that data, it inserts a record to two separate tables via a dataset. One of the records has no problem being saved into the database (in the table it was put into), but the other record seems to temporarily be in there (according to a third form), because it exists for the duration of the application, but when I exit, and then check the database, it's not there, and it's not shown on the third form when I restart the application again either.
View 11 RepliesI have about 4 different tables with the exact same column names. What I would like to do is select the top 4 records out of all of these tables combined ordered by date (as date is one of the columns that they all share).
View 1 RepliesI have been trying to display records from two tables from seperate databases into a datagrid. So far I can only get to display one record.
View 9 RepliesUsing a datagrid, binding to one table, and related to one combobos, I cant update records, cause gives me a violation error. I'm not changing the primary key, so, I dont undersatnd cause this happen. I prepair a example of this error, and it was attached to this message.
View 5 RepliesI 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 try to fill up a data grid view with records of two related tables. Beneath you can find the code I use to handle this.
The first table �GemeentenT� has the following columns.
GemeenteId Primary key
GemeentePostnummer
GemeenteNaam
[Code].....
I have two tables as follows:
Customer | Product
------------------
A | Car
A | Bike
A | Boat
[Code].....
If I use a normal JOIN then I get a list of friends for every separate product. I just want the two lists once.
The output lists with '-' need not be table cells, they can be <ul>s.
How can I achieve this? I would like to bind to ASP.net GridView. Should I try to do it all in one query, or use multiple queries and somehow add them both to the same Grid?
Each row actually forms part of a long report. Essentially each row of the report contains Customer ID, a bunch of other fields which match one-to-one with Customer ID, then the two lists for each Customer ID I described. Perhaps I can use a separate query for each list, then manually add each list to the grid on RowDataBound or similar?
I need to count the number of records that match on the GIDs from the 'Directories' table (GID) and the 'ClientSubscriptions' table (DirectoryGID), and also the 'FranchiseGID' from both; as follows:
Dim iSubscriptionCount
SQLCommand = "SELECT COUNT(*) AS Counter FROM Directories.GID, ClientSubscriptons.DirectoryGID FROM Directories, ClientSubscriptons WHERE Directories.GID = ClientSubscriptons.DirectoryGID;"
[CODE]...
I need to determine whether or not to show a menu option based on the above.
Full Code: Default.asp
<!--#include virtual="/System/Startup_Admin.asp"-->
<!--#include virtual="/Admin/FranchiseAdmin/DirectorySetup/i_Directory.asp"-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
[CODE]....
I have an Access table which has a Number field and a Text field.I can run a query like this:
SELECT * FROM Table ORDER BY intID ASC
//outputs 1,2,3,10
But when I try to run the same query through the .NET OleDB client, like this:[code]......I get items in the order 1,10,2,3.What's going on here, and how can I have the data sort "naturally" (1,2,3,10) in both places?
how to join 3 tables, I have the following statement but I'm getting a missing a (syntax error "operator error")
da = New OleDbDataAdapter("SELECT [S].[Scheduled Vege], [V].[Description],
[DS].[Task], [DS].[Task Date], [DS].[Completed] FROM [Scheduled] AS S
INNER JOIN [Date Schedules] AS DS ON [S].[SchedID] = [DS].[SchedID]
[code]....
I've been working on a project for the last couple of days and have come across a problem that I'm sure is easy to resolve, but obviously not for me.
My dataset has a small crossed-out circle that's appeared next to the associated tables. This is preventing me from dropping tables onto the design of my form. Oddly the crossed circle only appears when I'm in the design of a form and not at any other time!
how to store or create a table on my database using vb.net i'm having hard time to create a table on my existing dbase
here my code;
Dim ntable As OleDb.OleDbDataAdapter
Dim mtable As New DataTable
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Documents and SettingsjessprDesktopmydbasesample.accdb"
[Code].....
when i view my access dbase i cant see the table that was created on my code. how can i view that table?
The following code creates a table in a mdb file.Dim tblName As String = Trim(Me.txbTblName.Text)
Dim Source = Trim(Me.txbLoadDB.Text)
Dim Pass = Trim(Me.txbPassDB.Text)
'Define the connectors
Dim oConn As OleDbConnection
[Code]...
I would like the table name be variable based on the textbox text but the following change creates a syntax error. Why is that?oQuery = "CREATE TABLE '" & tblName & "' ( ID Counter,Name TEXT(50) NOT NULL,PRIMARY KEY(ID) )"
im a newbiw in vb and i really dont have any idea on how to display the tables in mydatabase into my vb.. should i use a datagridview or a combobox or something?
View 14 RepliesI need to export the XML tables that i have added to the DataGrid to The new Access File (.mdb).
That is create the .mdb file and table in it qand then add the rows to it.
I programmed in VB6 but with VB2008 I have trouble with this:I have a table called Clientes (Clients). One of the fields is called Provincia (State), but this is a numeric field wich references to a Provincias table.So, when I show the Clientes from, the Provincias field must use a combobox with the province name instead of a textbox with a number.
View 9 Replies