I 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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how 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'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 RepliesI 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 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 am using the following
HTML
Dim newRow As FSSDataSet.MembersRow
newRow = Me.FSSDataSet.Members.NewMembersRow
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im 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 am using this code to insert a enw row into a txt file, it works fine but when i view it in notepad the items i entered have "" around them example instead of Apple it is "Apple" ? I am later putting these items in a List and trying to edit them which isnt working properly so i am thinking its because of the quotes can anyone tell me why i have the quote
HTML
Dim da As New OleDbDataAdapter("Select * From " & Me.OpenFileDialog1.SafeFileName & "", con)
Dim cb As New OleDb.OleDbCommandBuilder(da)
Dim dsNewRow As DataRow = ds.Tables("dataset").NewRow()
If Me.subjectaddtxt.Text <> "" Then
dsNewRow.Item("AddressDisplay") = Me.subjectaddtxt.Text
End If
I am student of T.Y.BCA. I have the project on VB.net. Give me the Insturcation for making a project on Resturent Management in Vb.net
View 2 RepliesI'm working on an application that uses a control with up, down, left and right user bottons to move a box in another control (another form). I know the name of the control. If I place the buttons in the same form, I'm able of keeping the focus on the control that have the box, by using:cvsDisplayControl.focus()
I tried to compile the control with this instruction within the code, but I got a errors since this the display control is not part of the one that has the buttons. Something that can help me is a way to assign tha name of the display control in runtime or read it from a file so the control can be compiled ok.
Full adder implemented in VB .Net.
Private Sub Button1_Click(sender As System.Object, _
e As System.EventArgs) Handles Button1.Click
Debug.WriteLine("Add without adding") 'one way the add instruction is implemented using logic gates
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How to use this query to update record [code]....
View 1 RepliesI have a Web application (Help Desk Ticket System) with an inbox to monitor incoming requests and made some filter buttons that help the user arrange the requests based on requester name, creation date, etc.
Every filter will simply call the same page but will add some code to the query string. Example, if the user presses a button labeled [Sort by Date] here is the code behind for that button:
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But I know that Response.Redirect does not accept javascript, and I don't want to split the code between Code Behind file, and ASPX file (adding OnClientClick attribute) because I will need to perform both VB instructions and also redirecting the user.
Why is it sometimes when I update a data using da.update(ds), the data sometimes didn't update or change... for example i want to change the name or number n a record, sometimes there is no changes..
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I am completly flummoxed!!! I have writen code for updating my table from a form but when I use the same code only changing the table names it wont work I get the following message: "Update requires a valid Update Command when passed DataRow collection with modified rows" My codes are as follows:
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how to update sql server from temporary table using visual basic net but don't create that temporary table on sql database (just in coding), the value of temporary table from ms-access table.
View 3 RepliesI am using the below mention code to update and delete data from datagridview. but i am unable to solve this issue. Delete is working but not update.
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my application reads from an .xls file I put on google sites. The problem comes when the application modifies a cell and tryes to save the file on the site, actually it does nothing since to read something from the site is easy, while trying to save something requires a connection with username and password.
So, how can I pass the username and the password to the application? and even most important,can I encrypt it so that the person who uses my application could not see the real trafic details with a http sniffer?Right now I am using this code:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
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im currently developing an application as my semester project and i strucked becuse of an small error. i have tried to update a record set in the sql server 2005 databse table by giving the following code. but its not showing any errors its working and displaying a message succeeded. but in database table i cant find any changes
sql
Public Shared ReadOnly SQLConnectionString AS String = "Server=RUSHANSQLEXPRESS;Database=nolimit;Trusted_Connection=True;"
Dim cnn AS SqlClient.SqlConnection[code]......
I make changes on my program very often so after I change something in application I have to go from PC to PC and copy paste new .exe file or .dll. I have more than 100 pc. I was thinking on this way but I do not know how I can make it; I want run application in the server, if got any update files server should update to rest of the pc which are online. In this case I do not need to walk around and copy-paste files every time I make any change in application.
View 1 RepliesI have a datagrid which is binding in my MS SQL database. I've created a two button: Import Data (this button is used to import my table from access database then display it to my datagrid) and Update button (this button is used to save/update my sql server through datagridview). When i clicked the Import Data button, it successfully import my table from access in my datagrid but the problem is, when i clicked the Update Data button an error message occur. I found the error in this code (da.UpdateCommand = cmb.GetUpdateCommand) saying "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information"
Here is the part of the sourcecode:
Imports System.Windows.Forms
Imports System.Data.SqlClient
Imports System.IO
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i have a app in visual basic mobile 2008, so i finish but now i need to tranfer the data generate in the in the app mobile to data base in sql server 2008.
View 1 RepliesI would like to ask. I have several files on the server about 50 and I need to withdrawinto my PC and still create the folder "pack" when no longer needed vytvo ena.AleI'd put a couple of conditions.
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I am trying to update a DateTime object into a datetime field of a sql (SQL Server 2000) database.I have the following function
Public Sub Update(ByVal lastlogin as DateTime)
Using slqupdate as SqlCommand = _connection.CreateCommand()
sqlupdate.CommandType = CommandType.Text
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I have a DataGridView that displays data from a SQL Server database. It allows the user to edit the data and save it back to the database. The way that data gets saved back to the database is something like this:
Dim da As New SqlDataAdapter
Dim cmdBuilder As New SqlCommandBuilder(da)
da.SelectCommand = New SqlCommand(sql, conn)
da.InsertCommand = cmdBuilder.GetInsertCommand
da.UpdateCommand = cmdBuilder.GetUpdateCommand
Dim cb As SqlCommandBuilder = New SqlCommandBuilder(da)
da.Update(dt)
This works fine when I'm saving to ordinary tables. However I also want to save to a view that has an instead of trigger that fires on insert, update and delete. When I try to use the above with this view I get the error:
"Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information."
How can I save to this view? I don't want to save directly to the underlying table because I want the trigger to fire.
I also tried manually generating the InsertCommand and UpdateCommand, but got the same error. It turned out I got the commands wrong when I manually generated them. Once I fixed that it worked fine - my view gets updated and the trigger fires as expected. I guess that you just can't autogenerate the commands for a view with SqlCommandBuilder.
i looking for a easy way to save a image to a sql server i have found a lot of examples but many is for asp.net and others have many functions for do a simple process that with vb6 i do with a few lines:
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but this simple dont update nothing i have tryed to update a text value but the result is the same nothing is updated! but he actully dont return any error and i can see that the record is opened but simple can't update
I know how to insert a new row into a table that has a binary column. But is there any way to update the binary column once that row has been added? So far an exhaustive google search has turned up nothing. Get the current row that I wish to update delete the row that I wish to update Create a new row with the information from the row I wish to update plus the new binary It just doesnt seem very elegant, and I was hoping I could do the same thing with an update statement. Here is the updated code I am using now for reference
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I have a VS2010 VB application using a SQL Server 2008 R2 database. I display a record in a form and allow the user to update the record and save the changes. However, the changes don't make it to the table. Here's the sample code for the Save button click[code]...
View 5 RepliesHow to Update JPEG into a SQL Server 2000 database field of image type using Transact SQL
View 2 RepliesI am using Visual Studio 2008 for creating a Winforms app. I have connected a database to it called XStats. There is one table in it called XGames and in that table 2 fields, XIndex (the primary key field) and GameNumber. Using the following code I can add records to the database, the data is taken from a text box, but once added I cannot view them unless I shut down the app and restart it.
con.ConnectionString = connectionString
con.Open()
Dim cmd As New SqlCommand
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The existing records in the database are displayed on the form in detailed view via a binding navigator. How can I make it so that I can view all the records in the database, even those that are added during the current session. As will be obvious, this is my first attempt at creating and using a database with a win forms app,
