I'm trying to update a data user using vb.net2008 and sql server management studio express for my backend. the error says "must declare the scalar variable "@username" here's the code .[code]...
View 14 RepliesHere is the code snippet
objCommand.CommandText = "UPDATE tblCustomers SET weight= @weight, height= @height WHERE id=@id "
What i want to do is the following:
I have a form and i want,by clicking the appropriate button, to update the height and weight values which have the specified primary key 'id'.
The primary key 'id' is of type IDENTITY.The problem is that the above code does not work. It says Must declare the scalar variable "@id".
I'm trying to update a data user using vb.net2008 and sql server management studio express for my backend. the error says "must declare the scalar variable "@username"
Here's the code .
Private Sub btnupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles btnupdate.Click
Dim connstring = New SqlClient.SqlConnection("Data Source=MISD-
[CODE]...
What is the difference between vb.net application and asp.net application? How can I publish an ASP.Net application with database residing in the server and user could update that through internet?
View 2 RepliesMulti-User Chat Program (Server & Client) with Main Server?
View 1 Replieshow to insert and update data into cache database which is setup as a linked server on sql server 2005.I mean to say insert / update query statement.
View 2 RepliesI write a program by visual basic.net 2010. This program function is add , query, del data. It can show correct result in computer A. But I use sql instruction to query the sql server. the data is not changed in sql server. I have spent a lot of time. But I cant solve it. If u have
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I have form in which I can change the name of stations in my database (SQL Server: in table Stations).To choose which station I want to edit I've used a combobox.What I want to happen now is that when I update a station, my ComboBox with stations immediatly gets updated with the edited station.
View 1 RepliesI am building a simple form wicht allows the user to update the data on it.I use this
Imports System
Imports System.Data
Imports System.Data.OleDb[code].....
I am creating an application in vb.net in which many users can add, update, and modify data stored in sql, but one user at a time. Users have to login to the application and then they can start their work. I want to know how I can monitor their work after they log out, like which user updated the record and at which time.
View 1 Repliesim trying to use the combobox to update/edit/view the saved data (in contact form) from sql server. my Load_Combobox (in contact form):
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I'm working in ASP.NET ( beginner ) and I tried to make update query using the code below. I try the same code to get date from database and it work fine, but only don't work with update query.
Note: I use LINQ
Dim updateCust = (From cust In db.Customers
Where cust.CustomerID = "JILLF").ToList()(0)
updateCust.ContactName = "Jill Shrader"
[code]....
how to create a client/server... But I couldn't... I don't want anything fancy. Just want the client to send the server 4 numbers, depending on the user's choice; after that, the server would turn off the pc, restart it, etc. It all depends on the number received. Is there a rather "simple" way to do it? If it's not to much trouble you could use Atheist's example. (Btw I don't understand the code and, yes, I've checked on [URL])
View 9 RepliesWell after lots of research i have managed to get a working Shoutcast Server that will allow you to run and stream music to winamp locally or over the net. [URL]is the free source offered by some people over at spesoft using the BASS.dll and BASSenc.dll I'm having problems with Re-sending the original header to winamp when the song changes to update the title of current song playing.this is very straight forward source. however i can't seem to figure this out.
Private Function SendHeader(ByVal sHttpVersion As String, ByVal sMIMEHeader As String, ByVal iTotBytes As Integer, ByVal sStatusCode As String) As Boolean
Dim sBuffer As String = ""
sBuffer = sBuffer & sHttpVersion & " 200" & vbNewLine
[code]....
I am trying to update a SQL Server database Date field.When the user enters the date they enter 02 Oct 2010.When I pick up the DateTimePicker.Value it is 10/02/2010 00:00:00. I need to get the value to read 02/10/2010 00:00:00 How do I get the value to be in this format?
View 7 RepliesI have a VB2005 winforms application that will loads city data from my database table. This is to ensure that the user enters the correct city spelling, in order to receive an accurate quote. Currently, there are about 150K cities that are being loaded to the dropdown listbox on page load. It takes about 30-40 seconds for that page to load. My initial thought was to allow the user to select the state first. Then load the city values. But the user has the option of going back and requesting a quote for a different city / state.
View 2 Repliesif could modify the following code for me so that it save data row by row from a DataGridView into SQl Server. Currently, the code saves data from all rows at time instead of saving only the recently added data in a row or rows when the user clicks a button.[code]...
View 1 RepliesI am wanting to be able to have a feild in sql server database that the user can open a file dialog and select an image to insert then save. can this be done, and how?
View 8 RepliesI'm trying to updatesome records, currently my table is blank apart from the user id which is correct. but i get the error below.
My UserSettings table is as follows
ID is a Integer
MonthID is a Integer
YearID is a Integer
UserName is a string
Balance is a Integer
PhotoAddress is a string
GameSpeed is a Integer
This is my code and below that is my error in my ErrorTXT box.
[CODE]...........................
I have a project where I added visually and successfully a datasource of MySql. I binded a datagridview with a table.
But, how do I change programatically the password, ip or user to connect with the MySql server? Because it can change at any time, so I can let the user change these values.
I'm currently upgrading my sql server from 2005 to 2008 enterprise server. I used VB to connect to the database. It worked fine in the previous version of sql, but when upgrading it seems doesn't recognize my connection string.
Below is my connection string:
myConnection = New SqlConnection("server=RAVY-PCRAVY;uid=;pwd=;database=CIEDC");
myConnection.Open();
Where Ravy-PCRAVY is my server name at the sql server login dialogue box. And I used the windows authentication mode.
How to use this query to update record [code]....
View 1 RepliesI am starting design of a program that needs to run no matter if the user is logged in to the PC or not. So I will be writing it as a VB.Net Service.
As I am not overly familiar with SQL Server Express, is it possible to connect to a local SQL Server Express Instance and access the database from a VB.Net Service while the user is not logged in to the PC?
I am getting an error on my form "String or Binary will be truncated".I want to do a quick display of all of the data that is going to be updating when the app gets to: Me.taClientMast.Adapter.Update(Me.dsMain, "ClientMast")Is there a command where I can get it to show before the error?
View 4 RepliesI am writing a signout program in vs2008 using an access database.I have created forms and can call student and equipment info from the tables.I got the sign out part working and can add data rows to my table containing that information now I seem to be stuck in a stupid place. Signing the equipment back in I call the record to fill a form now all I want to do is add the date to the RETURNDATE column and save the record back to the DB and I am stuck at that point and cant seem to find the answer on the web.
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I'm working on a multi user VB.Net windows application with back end as SQL Server 2008 Express. The SQL Server is installed on the intranet network drive. This is the connection string I will be using. Is this correct?
Data Source=.SQLEXPRESS;AttachDbFilename=Q:DatabasePrintDB.mdf;Integrate d Security=True;Connect Timeout=30;User Instance=True
i m unable to update data into my database in vb 2008. the changes are reflected in the dataset but they are not reflected in database. i have set the datasource's copy to output property to copy if new but it is still not working.
View 6 RepliesI'm actually making a library system and I'm having problems with my data not saving in the database. It does appear in the DataGrid but after I close the application and check the database, nothing's there. [URL]
Here's the code.
Imports System.Data.OleDb
Imports System.Object
Public Class AddBook
[Code]....
I cannot figure out how to change the data in a listbox. I'm being driven completely mad by vb.net, finding it very very complicated.
Ok I have two list boxes on a form that contain correlated data i.e. the first item in the first list box corresponds to the first item in the second list box.
Under the two list boxes I have two text boxes for data entry.
For Example :
LstTagDatabaseLoop LstTagDatabaseSource
TxtTagDatabaseLoop TxtTagDatabaseSource
I want to Add Update and Remove items from the list. If the user selects an item, I want the selected item in the other list to change to correspond. I also want the two text boxes to be udpated with the currently selected item.
[Code].....
however this invoked the selectedindexChanged sub umpteen dozen times and while in the end it did actually update the data, its obviously not the right way.
I found ListViews which perhaps is more appropriate but I couldn't get my head around it at all so returned to trying to use these listboxes. Is there a different object I should be using.
I'm finding vb.net to be too complicated for a hack programmer like myself...
I have programmed gridview, where you Edit a row and then update it using link buttons provided on the row.But when a user has to make couple of edits on the same grid, it should be saved with one button click and one refresh to reflect updated data.
View 3 Replies