VS 2008 Using 2 Tables Get Information?
Jan 13, 2010
I have to tables into my SQL Server 2008 database
1st table: tblUser (user_id, user_name, user_photo);
2nd table: tblAccess (id, user_id, status_access);
I need to permit access or denied access using this 2 tables....
The problem is: When the user type a 'user_id' in textbox, the application go to table tblAccess and verify if the status_access is true or false.... if is false, the application show a msgbox saing "Access denieded"... when status_access is true the application go to table 'tblUser' and get user_name, user_photo and show the user photo to the picturebox, show the user name to the labeltext and a message box saying : access permited...
How can I do it in VB.net 2008
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Jun 9, 2011
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
[Code]...
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Feb 15, 2012
what i need to do is to get information from 2 tables and show it to the listview. for example, i want to get the surname, first name and middle name from the student_info table and the Payment_Status from the accounting_system. i don't want to show the information that is already on the accounting system that has 'Paid' on the Payment_Status.[code]but the listview only showed the first data on the database
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Feb 8, 2012
Dim LocationList =
From rows In db.Locations, clientRow In db.Clients, stateData In db.Ref_States
Where rows.State = stateData.ID
Select ClientName = clientRow.Name, rows.ID, rows.Address1, rows.Address2, rows.City, StateName = stateData.Name, ShortStateName = stateData.ShortName, rows.ZipCode Order By Address1
That's what I have and it is very wrong. Everything shows up, but the data displays incorrectly, displays more rows than exist.
Dim LocationList =
From rows In db.Locations, clientRow In db.Clients, stateData In db.Ref_States
Where rows.State = stateData.ID And rows.ClientID = ucClientID And rows.ClientID = clientRow.ID
Select ClientName = clientRow.Name, rows.ID, rows.Address1, rows.Address2, rows.City, StateName = stateData.Name, ShortStateName = stateData.ShortName, rows.ZipCode Order By Address1
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Aug 15, 2009
The code I am having problems with is supposed to take a ID number and load the information from several different tables into a game object, then return the object. When it tries to load the data into the object I get an error saying there is no data in the row or column. [code]
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Jul 12, 2011
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
[code].....
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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:.....................
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Oct 29, 2010
In my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
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May 10, 2012
We are presently developing an application, let's call it APP1, which uses a SQL Database which have about 800 stored procedures, 600 tables, etc. APP1 was originally created in order to replace another application, APP0, from which we do not have source code but only SQL tables, Stored Procedures, views, etc. Previous programers of APP1 used some DB objects from this same database and added some other objects specific to APP1 because it becomes bigger than APP0. And we do not need APP0 anymore as APP1 does all what we want, and more.
So, now, we are thinking about a way to find out which objects are used by APP1 in order to remove objects which are ONLY used by APP0.What is the best approach to discover all objects used by APP1 without having to open every single class and form?
Once we will have a complete list of these objects, it will be easy to use a program we bought which detects all dependencies for all SQL Objects specified directly from SQL and remove objects which do not return from any dependencies. Any ideas of how I could get this list without having to go through all our program that have many, many, many classes and forms?
Note : I know, in a perfect world, all calls to PSs and tables should be in a DAL but in the case of the application we're presently working on ... this is not our case! Yippy! (sarcastic yippy) ;)
Note 2 : This application is not using any ORM. So all queries are directly using SqlCommand. So any call to any DB objects are in string format.
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Mar 25, 2009
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
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Jun 12, 2009
I'm trying to make it so that it reads the xml, gets all the tables and puts all the tables names into the combobox..
i have tried..
ds1.ReadXml(meDirectory & "saves.xml")
With ComboBox1
.DisplayMember = "name"
[Code]....
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Apr 14, 2009
i have two tables ( employees and departments )i want to insert data in employees table via employees form .so how can i put the departments names in a combobox and when the user choose a specific one it will return a department number so i can pass it to the INSERT statement? i mean what is the exact SELECT statement to load the the information to the datatable do i need two SELECT statements or innerjoin or something else?
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Apr 29, 2009
I want to create a table with an option of increasing rows on clicking a button which will be on the side of tableAfter user puts data into table, that should be updated in oracle database table.
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Feb 2, 2011
I was looking for some stuff online, and i was looking through my reference sheets for vb.net, but it seems in the code i have found, there is declare in methods. Below is an example i am talking about. The thing is, that i dont recognize it and believe that it is an earlier version of Visual Basic ( 6 or earlier) which used it. Should i just keep looking for different code?
Public Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal _
lpSubKey As String, phkResult As Long) As Long
Goal: Find information on how to implement a method which will check if a certain DSN exists, and then if it does, extract the information and use the information for connection purposes.
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Feb 6, 2010
There would be more than 8 table controls in the report(.rdlc) and each would hold records that has specific values on specific fields.The fields in my database table are;
1. Year
2. Semester
3. Subcode
[code].....
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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]......
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May 5, 2010
In my application, I use Vb.Net 2008 with MsAccess..In SQL SERVER, for creating Pivot Tables, I can use the commands: PIVOT and UNPIVOT in SqlServer, for creating them.But, working with Vb and Access, how can I do it?There is some way to create a Pivot Table, by code?
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May 24, 2012
I have a text box where i am entering numbers of double datatype andon the Keytdown event of the textbox some checks take pace and in certain circumstances I want to be able to stop the user from entering other information until they enter the right information in the textbox (where it says right here) . now when I say exit sub the textbox somehow loses focus . but this is not how I want it to be I want the textbox to remain with the focus so the user can change the information . How can i go about this. And the other thing is why is my txtDestPayRate1.Focus() just befor the exit sub not working?
Private Sub txtDestPayRate1_KeyDown1(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtDestPayRate1.KeyDown
If e.KeyCode = Keys.Enter Then
[CODE]...
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Dec 3, 2009
I am designing a backup/restore utility for work.atm i have been able to populate field for PC name, IP address, MAC address, number of printers installed on the PC but i am wondering is it possble to get all the printer information 'with the click of a button' to print all information like the prnmngr.vbs script down.I am able to run a batch file but i wanna get it to go from that app or even embed to batch file to the app and run it form there .
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Jun 5, 2011
How can I connect two tables from MS SQL Server 2005 using vb.net 2008?
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Feb 28, 2011
I have a select query like this. But from the below codes, I cannot update t2.unit_price in the same SqlDataAdapter
My Codes :
Dim MyQuery1 as String="Select t1.item_id,t1,group_id,t2.unit_price from Table1 t1 left outer join Table2 t2 on T1.Item_ID=T2.Item_ID"
Dim DAp1 as SqlDataAdapter,Ds1 as New DataSet
Con.Open()
DataAdapter1=New SqlDataAdapter(MyQuery1,Con)
DataAdapter1.Fill(Ds1)
[Code] .....
From the above codes
Dim Sav1 As String = "insert into table1 .........."
I don't know how to mention table2 also there ?
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Jul 2, 2010
I have a table of data in Excel 2003 of which I have managed to automate through a VB.NET application to create a Pivot Table. (Will be doing hundreds of these and therefore cannot just run a macro each time...will put the code in a for loop for each spreadsheet in a directory) My problem is that I am trying to create a pivot chart based on the pivot table.
Some code below....I need to create a pivot chart based on the pivot table below!
CODE:
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May 12, 2011
I have created a crystal report with two tables, one for company details as a header and one for report details as a filler. I have been trying to get dates to filter the report and have done so successfully but the header part of the report does not show any data at all. I have binded the crystal report using a report viewer. Here is code I use to call crystal report. Lets say second table is called Company details, how do I get this information to show up with rescinded documents information. I have attached a copy fo what my final report will look like.
Private Sub BtnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnOpen.Click
Dim sqlsearch As String
Dim con As New OleDb.OleDbConnection
Dim hugh As Date = DateTimePicker1.Value.Date
Dim hugh2 As Date = DateTimePicker2.Value.Date.AddDays(1)
[Code] .....
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Aug 3, 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.COPDataTable
Dim adapterCOP As New AmetailorDataSetTableAdapters.COPTableAdapter
adapterCOP.Fill(dtCOP)
But in one row, I have product descriptions so there should be sentences. I set the type of this row is Text in the database. When I use single numbers in the table, there is no problem. But if I write sentences (that is a must because it is product description) or even a single word, I get the below error on adapterCOP.Fill(dtCOP):
"Input string was not in a correct format.Couldn't store <(the written text in description)> in Description Column. Expected type is Decimal."
There is a richtextbox in my form that should show the product description when the product code is selected from a listbox available in my form.
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Apr 7, 2012
I am working on a program which makes tables in MS WORD. But there are many parameters that should be asked. Its so embarrassing to ask all of them with inputbox while codes are working. I made forms for each tables which will be created. While codes are working, when it is the time to create table, form appears and user inputs the datas and press OK button and table is build according to these datas in MS Word. Does anyone has an idea ?
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Jul 2, 2010
I'm going to describe this as simple as possible, and it a typical setup for a database...
I have 1 DataSet, 2 DataGridViews (DGV), and 2 BindingSources (BS).
The DataSet has 2 tables and 1 Relationship (FK).
Table 1 is a employee table
Table 2 is timeclock data.
Both tables contain a column: EmployeeId
FK is linked to EmployeeId of both tables.
DGV1 has it's datasource=BS1
BS1 has it's datasource=DataSet and it's DataMember=Table 1.
Thus DGV1 shows Table 1.
DGV2 has it's datasource=BS2
BS2 has it's datasource=BS1 and it's DataMember=FK
Thus DGV2 shows Table 2 filtered by what's selected in DGV1.
Now when I use the mouse or keyboard to select a cell in DGV1, the relationship causes DGV2 to update to only show data from Table 2 where the EmployeeId row equals that from the selection in Table 1. With me so far?
Well all that works great. But what if I need to programmatically select a row in Table 1 to cause Table 2 to update? I've tried everything I can think of, but Table 2 NEVER updates when I attempt to programmatically select a row or cell in Table 1.
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Oct 20, 2009
I have just started to learn how to use SMO in some cases. Below is some code I found from a site to list the servers and databases for each. What I would like to do is go a step further and list all of the databases and stored procedures in their own listboxes when I select a database. I would like to not include the system ones or at least have a checkbox to decide to include them or not. I searched and could not find how to do this.
Here is the code I have so far:
Imports Microsoft.SqlServer
Imports Microsoft.SqlServer.Server
Imports Microsoft.SqlServer.Management
[Code]....
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Apr 6, 2012
I am a new user. Apologies if I am posting this in wrong place and also if it is repeated one. I have few queries:
1.Is it possible to store multiple tables in a single DataSet?
2.If yes then it is a good practice? or should i prefer having separate connection object, separate DataAdapter and separate DataSet for each of the table to be accessed? I am new to VB.NET and using VB.NET 2008 Express and MS-Access 2007 as backend for my project.
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Mar 28, 2012
Dim cn As String = ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Database genk.mdb;")
Dim SQLString As String = "SELECT * FROM Products"
Dim DBConn1 As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(cn)
Dim DataSet1 As New DataSet()
Dim DataAdapter1 As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(SQLString, DBConn1)
[Code]...
When the user clicks the button the all the data in my Products table is displayed on a datagrid. How can i put the data inside my Products table into an array so i can manipulate my fields to undergo quick sort.
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Mar 12, 2010
So I have a database in Microsoft Access (its path is c:database.mdb). There are two tables. Table1 and Table2. I would like to read each row of Table1 to an array, and write a row to Table2.
I have looked all over google, but I couldn't find anything that worked.
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