Question

Form does not have focus on start up

Asked by: jsvb1977

Using the code listed below i have a start up routine that displays a form. Trouble is, when the app runs and the frmMap in the ELSE statement is called, the frmMap does not have focus; so, the user has to click on the form in order to use it.

Is there a way to force the focus of this frmMap form?

Thanks,
Jason

Private Sub MyApplication_Startup(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
            If VerifyAllPaths() Then
                'Do Nothing
            Else
                Dim frmMap As New frmMapDrives
                frmMap.ShowDialog()
                frmMap.Focus()
            End If
            Dim frmM As New frmMain
            frmM.ShowDialog()
        End Sub

                                  
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Asked On
2009-10-22 at 06:07:36ID24834307
Tags

vb.net

,

visual basic

,

visual studio

Topics

Visual Basic Programming

,

.NET

,

Visual Studio

Participating Experts
2
Points
500
Comments
9

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Answers

 

by: jpaulinoPosted on 2009-10-22 at 06:15:27ID: 25633739

Do you have something in the frmMapDrives that could make the form loses the focus ?

 

by: jsvb1977Posted on 2009-10-22 at 06:34:40ID: 25633945

Good Question, but I dont think so. The code for that form is listed below.

Thanks,
Jason

Imports System.Runtime.InteropServices
Public Class frmMapDrives
 
    Public Declare Function WNetAddConnection2 Lib "mpr.dll" Alias "WNetAddConnection2A" _
            (ByRef lpNetResource As NETRESOURCE, ByVal lpPassword As String, _
                ByVal lpUserName As String, ByVal dwFlags As Integer) As Integer
 
    Public Declare Function WNetCancelConnection2 Lib "mpr" Alias "WNetCancelConnection2A" _
            (ByVal lpName As String, ByVal dwFlags As Integer, ByVal fForce As Integer) As Integer
 
    <StructLayout(LayoutKind.Sequential)> _
    Public Structure NETRESOURCE
        Public dwScope As Integer
        Public dwType As Integer
        Public dwDisplayType As Integer
        Public dwUsage As Integer
        Public lpLocalName As String
        Public lpRemoteName As String
        Public lpComment As String
        Public lpProvider As String
    End Structure
 
    Public Const ForceDisconnect As Integer = 1
    Public Const RESOURCETYPE_DISK As Long = &H1
 
    Public Function MapDrive(ByVal DriveLetter As String, ByVal UNCPath As String) As Boolean
 
        Dim nr As NETRESOURCE
        Dim strUsername As String
        Dim strPassword As String
        Dim result As Integer
        nr = New NETRESOURCE
 
        Try
            nr.lpRemoteName = UNCPath
            nr.lpLocalName = DriveLetter & ":"
            strUsername = txtUserName.Text '"username@domain.com" 'Nothing '(add parameters to pass this if necessary)
            strPassword = txtPassword.Text '"password" 'Nothing '(add parameters to pass this if necessary)
            nr.dwType = RESOURCETYPE_DISK
            result = WNetAddConnection2(nr, strPassword, strUsername, 0)
        Catch
            result = 1
        End Try
 
        If result = 0 Or result = 85 Then
            Return True
 
        Else
 
            'If result = 1326 Then
            '    MsgBox("Error: Logon Failure" & vbCrLf & "Carefully enter your admin credentials and try again.")
            '    Return False
            'End If
 
            MsgBox(nr.lpRemoteName & " Failed to Map to " & nr.lpLocalName)
            Return False
 
        End If
 
    End Function
 
    Public Function UnMapDrive(ByVal DriveLetter As String) As Boolean
        Dim rc As Integer
        rc = WNetCancelConnection2(DriveLetter & ":", 0, ForceDisconnect)
 
        If rc = 0 Then
            Return True
        Else
            Return False
        End If
 
    End Function
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMapDrives.Click
 
        If MapDrives() = True Then
            MsgBox("DCLI | DSVR | QSVR Have Been Mapped!")
            Me.Close()
        Else
            MsgBox("DCLI | DSVR | QSVR Did Not Map." & vbCrLf & "Check your credentials and try again.")
        End If
 
    End Sub
 
    'Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
    '    UnMapDrives()
    'End Sub
 
    Private Function MapDrives() As Boolean
        Dim blnSuccess As Boolean = True
 
        If MapDrive(My.Settings.DriveLetterToDCLI, My.Settings.UNCPathToDCLI) Then
        Else
            blnSuccess = False
        End If
 
        If MapDrive(My.Settings.DriveLetterToDSVR, My.Settings.UNCPathToDSVR) Then
        Else
            blnSuccess = False
        End If
 
        If MapDrive(My.Settings.DriveLetterToQSVR, My.Settings.UNCPathToQSVR) Then
        Else
            blnSuccess = False
        End If
 
        Return blnSuccess
    End Function
 
    Public Function UnMapDrives() As Boolean
        UnMapDrive(My.Settings.DriveLetterToDCLI)
        UnMapDrive(My.Settings.DriveLetterToDSVR)
        UnMapDrive(My.Settings.DriveLetterToQSVR)
        MsgBox("DCLI | DSVR | QSVR Have Been Un-Mapped!")
    End Function
 
    Private Sub btnHelp_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnHelp.Click
        ToolTip1.SetToolTip(btnHelp, "Roadshow Watcher needs to map the network drives: DCLI, DSVR, and QSVR." & vbCrLf & "Please enter your admin credentials below using the 'username@fsproduce.com' convention and press the Map Drives button to continue.")
    End Sub
 
    Private Sub frmMapDrives_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Me.txtUserName.Focus()
        Me.Focus()
    End Sub
 
    Private Sub btnCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCancel.Click
        End
    End Sub
End Class

                                              
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by: Idle_MindPosted on 2009-10-22 at 08:10:50ID: 25635137

Change it to:

    Private Sub MyApplication_Startup(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
            If VerifyAllPaths() Then
                Application.MainForm = New frmMain
            Else
                Application.MainForm = New frmMapDrives
            End If
        End Sub

In Project --> Properties, change the "Shutdown Mode" to "When Last Form Closes".  Then, from within frmMapDrives, you open frmMain and CLOSE frmMapDrives without having the whole app die on you.

 

by: jsvb1977Posted on 2009-10-22 at 08:42:19ID: 25635521

Idle_Mind,

that did not make any impact on the focus of the form.

HOWEVER! I think I found a clue. When I removed the splash screen the frmMapDrives loaded and had focus.

I don't see any properties in the splash screen that indicate focus. Any thoughts?

Jason

 

by: Idle_MindPosted on 2009-10-22 at 11:47:07ID: 25637598

Is the splash screen set thru the Project --> Properties?...or are you displaying it from somewhere else?

 

by: jsvb1977Posted on 2009-10-22 at 13:17:18ID: 25638505

Set through the project. Check the screen shot below.

Jason

 

by: jsvb1977Posted on 2009-10-23 at 06:19:31ID: 25644070

What I ended up doing is programming the splash screen to appear via code instead of specifying a Splash Screen as indicated in the screen shot above. I then added a timer to the frmSplashScreen for 3000 ms so that it would only display for that duration and then dispose. I have attached the different code bits below. I will be awarding points accordingly.

Thanks for all of your help!

Jason

=================================
In the ApplicationEvents.vb:
=================================
        Private Sub MyApplication_Startup(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
            frmSplashScreen.ShowDialog()
 
            If VerifyAllPaths() Then
                'Do Nothing
            Else
                Dim frmMap As New frmMapDrives
                frmMap.ShowDialog()
                'frmMap.Focus()
            End If
            Dim frmM As New frmMain
            frmM.ShowDialog()
        End Sub
 
=====================================
In the frmSplashScreen.vb
=====================================
    Private Sub tmrSplashScreen_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrSplashScreen.Tick
        Me.Dispose()
    End Sub
 
=====================================
What this does is force the frmSplashScreen to display for 3000 ms BEFORE any of the other forms display. This also disposes of the SplashScreen BEFORE the other forms display therefore giving focus to the other forms when it is there turn to display.
                                              
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by: jsvb1977Posted on 2009-10-23 at 06:21:48ID: 31644475

See my final post on how i used this information to finally solve my Focus Problem.

 

by: Idle_MindPosted on 2009-10-23 at 07:36:35ID: 25644810

Glad you got it all sorted out...

20120131-EE-VQP-002

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