Use WMI (http://msdn.microsoft.com/en-us/library/aa394582(VS.85).aspx). Take a look at this thread - http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/7356d3d8-8e08-4dc7-9c3c-8dde3dddd455

Here is a common event handler,


.....
Private Sub EmnuExitMenu_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles EmnuExitMenu.MouseMove,...

>how to set an excel object to instance type?

Please try to be more specific. I think you want to create objects/instances of workbook, worksheet. Take a look at this article -...

Create a forumula field and use ChrW() to insert ASCII characters.


"Line1" + ChrW(13) + "Line2" + ChrW(13) + "Line3"


Make sure that your object Can Grow option is set to true.

You should have to use OwnerDraw listbox. Set DrawMode and handle DrawItem and MeasureItem event.

Here is a code snippet.

Dim data() As String = {"One" & vbCrLf & "Two", "Hello" & vbCrLf &...

See this sample,


ListView1.Columns.Add("One")
ListView1.Columns.Add("Two")
ListView1.Columns.Add("Three")

Dim item As New ListViewItem("v1")
...

Try,

ListBox1.Items.Add(showAddress.DisplayAddress(vbCrLf))

Use CanGrow (http://www.crystalreportsbook.com/Crystal_Reports_XI.asp?Page=2_6) option.

Read error description - http://msdn.microsoft.com/en-us/library/cb8za975.aspx.

Clear() method clears entire area of drawing surface and fill it specified background color.


GraphicsDisplay = pboGraphics.CreateGraphics
GraphicsDisplay.Clear(pboGraphics.BackColor)

Use Controls collection,

TabControl1.TabPages("key or Index").Controls("key or index").Controls("key or index")

Try it,

Label1.SetBounds((Me.ClientSize.Width - Label1.Width) / 2, (Me.ClientSize.Height - Label1.Height) / 2, 0, 0, BoundsSpecified.Location)

Two ways to go:

1. Form a query,

myCommand = new SqlCommand("INSERT INTO tblClasses (ClassId,ClassName,Department) VALUES "('" & nudClassId.Value & "','" & txtClassName.Text & "','" &...

I think you should have to look at these samples - http://msdn.microsoft.com/en-us/library/dd250890.aspx

Try it,

request.Query="dani site:daniweb.com"
request.Image.Filters = new string(){"Size:Width:200","Size:Height:200"}

Take a look at a thread - possible-burn-data-cd-programmatically-via-vb-net-203062.

SUMMARY: The NeroCOM object (type library) which comes as part of the API is indeed compatible with .NET. There...

>I have found a mdf file which i have tryed to connect to through excel but this data is not the same as in my application.

You wouldn't normally deploy sql server with an application, you...

Set SelectedIndex property,

listBox2.SelectedIndex = 0;

Close the connection.

...
Try
conn.Open()
Dim readerAs OleDbDataReader = sCommand.ExecuteReader()
IF reader.Read Then
TextBox1.Text =...

Take a look at this tutorial - http://www.dreamincode.net/forums/showtopic37361.htm

Use where clause,

Private Sub ListBox2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox2.SelectedIndexChanged
...
Dim state= "SELECT * FROM...

Handles (http://social.msdn.microsoft.com/Forums/en-US/vblanguage/thread/37e4f691-7831-42a7-b491-6fd884eb0bc0) clause is missing with Event handler.

Use Aggregate (http://msdn.microsoft.com/en-us/vbasic/bb737904.aspx#aggsimp) Method.

Dim s() As String = {"AA", "BB", "CC"}
Dim Str As String
Str = s.Aggregate(Function(P, Q) P & " " & Q)

>could not. But I can still open other files such as XML, PDF,
Check the path of flash file (.swf or .flv) and take a look at this link -...

You can use Extension Method (http://msdn.microsoft.com/en-us/library/bb384936.aspx) - Extension methods enable you to "add" methods to existing types without creating a new derived type,...

Try it,

Dim s As String = "This is an example"
s = String.Join(" ", s.Split(" ").ToArray().Reverse().ToArray())

Read Generics (http://visualbasic.about.com/od/usingvbnet/a/genericlist.htm). The following code snippet will help you to understand the basics of collections (generics).


Dim p As New List(Of...

Link paste at post #2 showing VB 6.0 datatypes.
Infact VB.NET uses .net framework types system. Take a look at this link - http://msdn.microsoft.com/en-us/library/47zceaw7(VS.71).aspx

Set DefaultCellStyle.Format property of Columns collection.

DataGridView1.Columns(0).DefaultCellStyle.Format = "MMM-dd-yyyy"

xfrolox,

I think you want to code which allows single instance of an application. Please take a look at this article - http://www.codeproject.com/KB/vb/sing_inistan.aspx

Change SQL Text,

sql="Update Employee Set First_Name = @FirstName, Last_Name = @LastName, Phone = @Phone, [E-mail] = @Email, Address = @Address, Availability = @Availability Where Employee_ID =...

Can I see the update statement you wrote?

You have to turn on "write" permission to the Users group for the database file.

Use ParseExact


Dim dt As Date
Dim str as String = "2002"
dt = Date.ParseExact(str, "yyyy", Nothing)
DateTimePicker1.Value = dt

In order to write against an external component/control, your project must first contain a reference to it.

ListView1.View = View.Details
ListView1.HideSelection = False
ListView1.FullRowSelect = True

Dim lCount As Integer
ListView1.Columns.Add("No", 100)
For...

Imports System.Net.Mail

Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
.....
End Sub
End Class

Merovingian,

Can you be more specific? Show us your code if any.

Read this article http://msdn.microsoft.com/en-us/library/kew41ycz(VS.71).aspx

You can't change the alignment of 1st column.

Listview1.Columns.Add("",0, HorizontalAlignment.Center)
Listview1.Columns.Add("Column1", 100, HorizontalAlignment.Center)...