ASP.Net/ADO.net Database/Update SqlConnection
Update Sql Server Data
<%@ Page Language=VB Debug=true %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SQLClient" %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
End Sub
Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
Dim DBConn as SQLConnection
Dim DBUpdate As New SQLCommand
" DBConn = New SQLConnection("server=localhost;" _
" & "Initial Catalog=TT;" _
" & "User Id=sa;" _
" & "Password=yourpassword;")
DBConn = New SQLConnection("Data Source=whsql-v08.prod.mesa1.secureserver.net;Initial Catalog=DB_49907;User ID=nfexuser;Password="password";")
DBUpdate.rumandText = "Update Employee Set " _
& "Salary = Salary * " & txtRaise.Text
DBUpdate.Connection = DBConn
DBUpdate.Connection.Open
DBUpdate.ExecuteNonQuery()
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Updating SQL Server Data</TITLE>
</HEAD>
<Body LEFTMARGIN="40">
<form runat="server">
Enter the raise for all employees. For example, enter 1.25 for a 25% raise:
<BR>
<asp:textbox
id="txtRaise"
runat="Server"
/>
<BR><BR>
<asp:button
id="butOK"
text=" OK "
onclick="SubmitBtn_Click"
runat="server"
/>
</form>
</BODY>
</HTML>
Updating a database
<%@ Import namespace="System.Data" %>
<%@ Import namespace="System.Data.SqlClient" %>
<html>
<head>
<title>Updating a database</title>
</head>
<body>
<form method="post" runat="server">
<asp:Label id="txtFirstName" runat="server" /><br/><br/>
<asp:TextBox id="txtLastName" runat="server" /><br/><br/>
<asp:Button id="btnChange" runat="server"
OnClick="btnChange_Click" Text="Change" />
</form>
</body>
</html>
<script language="VB" runat="server">
Dim strConnection As String = "Data Source=whsql-v08.prod.mesa1.secureserver.net;Initial Catalog=DB_49907;User ID=nfexuser;Password="password";"
Dim objConnection As SqlConnection
Sub Page_Load(ByVal Source As Object, ByVal E As EventArgs)
If Not IsPostBack Then
LoadProduct()
End If
End Sub
Sub LoadProduct()
Connect()
Dim strQuery As String = "SELECT FirstName, LastName " & _
"FROM Employee"
Dim dbComm As New SqlCommand(strQuery, objConnection)
Dim reader As SqlDataReader = dbComm.ExecuteReader()
reader.Read()
txtFirstName.Text = reader.GetString(0)
txtLastName.Text = reader.GetString(0)
reader.Close()
Disconnect()
End Sub
Sub btnChange_Click(ByVal Sender As Object, ByVal E As EventArgs)
UpdateProduct()
LoadProduct()
End Sub
Private Sub UpdateProduct()
Dim strSQL As String = "UPDATE Employee" & _
" SET FirstName = " & txtLastName.Text & _
" WHERE ID = 1"
Connect()
Dim dbComm As New SqlCommand(strSQL, objConnection)
dbComm.ExecuteNonQuery()
Disconnect()
End Sub
Private Sub Connect()
If objConnection Is Nothing Then
objConnection = New SqlConnection(strConnection)
End If
If objConnection.State = ConnectionState.Closed Then
objConnection.Open()
End If
End Sub
Private Sub Disconnect()
objConnection.Close()
End Sub
</script>