Lock Records On SQL?
Sep 25, 2009
I have a form and its filled from a VIEW of two tables on SQL server. When its opened i dont want other users opening that customers details from either table.I know SQL itself prevents writes if its opened but i want to stop people opening the record in the first place.[code]...
I then tried writing these values to the db on the form loading but it doesent work - it just sends back NULLs. I tried the same code in the on load event into a button and it works fine there. So im thinking i should do this as a Trigger on SQL itself, but im unsure how i could get the users computername or Windows Login name, or even username from the front end im building.
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May 17, 2006
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
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Oct 27, 2009
how to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.
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Dec 29, 2011
How do I update records in a dataset with records in a transaction file?
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Feb 9, 2010
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].....
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Mar 27, 2012
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]....
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Apr 17, 2010
I am working on creating a program that records animal data (wombats) and stores it into a database, using vb.net. I am trying to add new records into a database but every time I click add, to execute that, there are duplicate records that gets added. How do i write the code so itonly adds it one time. I am using a data reader. Here is the
[Code]...
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Mar 11, 2010
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.[code]
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Sep 29, 2009
I have a dataset containing 2 tables,Customers and Contacts. Just showing the master-detail is not a problem. Problem occurs when I try to search the master table to bring in the detail table. Searching the master table shows only the master record, but not the related detail records. Adding a 'findby' query on the detail table only shows the records.url.. Normally when the master table is filled, the detail record shows in a form.
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May 27, 2009
Is there analogue of lock statement from c# in vb.net?
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Jan 23, 2009
Basically,I had a button in my form1,when I click it,then form2 will be display...Now I would like to lock form2 until a button in form2 had been clicked,then only I can do anything in other forms...I means form2 must be closed before I can remain to form1.
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Dec 15, 2011
VB.net how to lock a computer screen using a form
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Aug 23, 2010
How do I lock a row in MySQL and then only allow the app that locked it to change the values of that row?
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Dec 28, 2009
Wrote this code:
Function ReadRegistry(ByVal regType As String, ByVal RegPath As String, ByVal KeyName As String)
Dim regKey As RegistryKey
[Code].....
What I want to do is raise an error if I get passed a value that isn't listed in the case statement.. or it there a way to define it better?
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Dec 6, 2006
I am using XML files to store some iformation that are to be processed. I use this code to interact with the XML file:
Dim xmlDoc As New XmlDocumentxmlDoc.Load("theXMLFile")
Do XML stuff such as add elements...
xmlDoc.DocumentElement.AppendChild(oAlarm)xmlDoc.Save("theXMLFile")
What I want to do is to lock the file so that no other process can use the file. If a process wants to use the file, I also want it to wait and try again until file is available.
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Aug 7, 2007
how to lock PC using VB.net? So that any user cannot do anything on my PC?
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Oct 14, 2010
But not my application.A app i use refuses to be brought forward, so wondered if there was a way for a vb app to run in the bg that can force a specified application to stay on top, & even maybe set its screen position and lock it there???
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Mar 20, 2012
In my project i am using begin transaction commit or rollback changes. but this causes lock to the tables in that particular functionality.
So if the any other user does any other functionality those locked table are not available until the transaction is completed. I want to know if there is any alternative to transaction which insures data security but the tables are not locked out.
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Jun 21, 2011
Dim bmi As New BitmapImage(New Uri(fiInfo.FullName, UriKind.Absolute))
bmi.CacheOption = BitmapCacheOption.OnLoad
this does not Use OnLoad
[code].....
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Mar 29, 2011
how would i bypass the loader lock. I know there is a way to disable it but im not sure how
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May 15, 2010
This is a part of my project, my project basically uses a motion sensor to detect any intrusion. So one of the modules is to lock the PC on detection of an intruder. Is there a way to lock the PC using Visual Basic?(Because most of the other modules have been programmed in Visual Basic.) I am basically looking for source code that can implement something similar to "Windows button + L".
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Feb 23, 2012
I'm working on a small program to activate winlogon,and to automatically log out of my account, but I'm unsure how to implement this in code.
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Feb 3, 2011
I'm trying to detect the state of num lock but haven't had any luck. using a windows 7 x64 machine.
Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As System.Windows.Forms.Keys) As Short
'num lock check timer
[Code]....
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Sep 2, 2009
How do I get the current state of Num Lock in VB.NET?
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Aug 15, 2011
I have a windowsform in visual studio 2008, I connect to a ms sql-server.On my form I have a datagridview who I use to enter data etc and save them to the database. I then have textboxes who shows the sum of the columns etc in the table abd save that value back to the database. but for instance if i put the cursor in row 2 of the datagrid the values in theese textboxes dissapear.What I want to know is if there is apossibility to lock the textbox to ex. table test, clomn x and row 1??
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Jan 24, 2012
I'm newbie in VB .Net.I do want to lock a textbox but I cannot supply the right code for it.
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Jun 8, 2011
I am using vb.net framework 3.5. I want to lock input devices like keyboard and mouse from my application. Is their is anyway using sendkeys or any method to lock?
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Jun 22, 2010
I need to lock label position. so, my label can't move at all.. now, i'm using label1.Enabled = False.. but, my label.forecolor become gray..
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Mar 8, 2010
can anybody told me how to lock remote computer using Vb.Net2005
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Jun 24, 2009
how do you lock a single file cuz people r accessing files that r private and help me with VB 2008 code
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