exception in InitializeComponent of form

KNC · Apr 8, 2005

hi,

We sometimes got exception in InitializeComponent of form, the
exception type is NullReferenceException, etc..
Any help?

Thanks in advance,
KNC

Sergey Bogdanov · Apr 8, 2005

Does your form contain a lot of controls? If so then the problem in CF
CLR that has a limit to 64kb per JITed method. In short split
InitializeComponent into several methods:
http://msdn.microsoft.com/smartclient/understanding/netcf/FAQ/default.aspx#4.10

Best regards,
Sergey Bogdanov
http://www.sergeybogdanov.com

KNC · Apr 9, 2005

Hi Sergey,

Thanks for your answer but that's not the case. I know about the
limitation of 64 Kbs. This form is very simple, just about 6 combo, 1
button, 1 list view, 1 textbox, 2 menuitems, and about 8 labels.

Any help more?
KNC

Daniel Moth · Apr 9, 2005

Step into it to find out/use breakpoints. If the method is there, then it is
one of its lines that is causing the problem so find which one it is then
post here the method pointing out the offending line.

Cheers
Daniel

KNC · Apr 21, 2005

hi Daniel,

Sorry for tracking this thread very slow although I really need the
solution soon.
Below is detail of exception:

PDA.exe
frmLogin::set_cmdLogin+0x20
frmLogin::InitializeComponent+0x37
frmLogin::xctor=0x95
frmLogin::Main+0xa

And below is InitializeComponent function:

<System.Diagnostics.DebuggerStepThrough()> Private Sub
InitializeComponent()
Me.txtUserName = New System.Windows.Forms.TextBox
Me.lblUser = New System.Windows.Forms.Label
Me.lblPassword = New System.Windows.Forms.Label
Me.txtPassword = New System.Windows.Forms.TextBox
Me.cmdLogin = New System.Windows.Forms.Button
Me.cmdConfig = New System.Windows.Forms.Button
Me.MainMenu1 = New System.Windows.Forms.MainMenu
Me.InputPanel1 = New Microsoft.WindowsCE.Forms.InputPanel
Me.timerLogMem = New System.Windows.Forms.Timer
'
'txtUserName
'
Me.txtUserName.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.txtUserName.Location = New System.Drawing.Point(88, 40)
Me.txtUserName.MaxLength = 6
Me.txtUserName.Size = New System.Drawing.Size(88, 19)
Me.txtUserName.Text = ""
'
'lblUser
'
Me.lblUser.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.lblUser.Location = New System.Drawing.Point(2, 42)
Me.lblUser.Size = New System.Drawing.Size(80, 16)
Me.lblUser.Text = "æ°åã‚³ãƒ¼ãƒ‰"
Me.lblUser.TextAlign = System.Drawing.ContentAlignment.TopRight
'
'lblPassword
'
Me.lblPassword.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.lblPassword.Location = New System.Drawing.Point(10, 90)
Me.lblPassword.Size = New System.Drawing.Size(72, 16)
Me.lblPassword.Text = "ãƒ‘ã‚¹ãƒ¯ãƒ¼ãƒ‰"
Me.lblPassword.TextAlign =
System.Drawing.ContentAlignment.TopRight
'
'txtPassword
'
Me.txtPassword.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.txtPassword.Location = New System.Drawing.Point(88, 88)
Me.txtPassword.MaxLength = 8
Me.txtPassword.PasswordChar = Microsoft.VisualBasic.ChrW(42)
Me.txtPassword.Size = New System.Drawing.Size(88, 19)
Me.txtPassword.Text = ""
'
'cmdLogin
'
Me.cmdLogin.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.cmdLogin.Location = New System.Drawing.Point(32, 136)
Me.cmdLogin.Size = New System.Drawing.Size(72, 24)
Me.cmdLogin.Text = "ãƒã‚°ã‚¤ãƒ³"
'
'cmdConfig
'
Me.cmdConfig.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.cmdConfig.Location = New System.Drawing.Point(136, 136)
Me.cmdConfig.Size = New System.Drawing.Size(72, 24)
Me.cmdConfig.Text = "åˆæœŸè¨å®š"
'
'timerLogMem
'
'
'frmLogin
'
Me.Controls.Add(Me.cmdConfig)
Me.Controls.Add(Me.cmdLogin)
Me.Controls.Add(Me.txtPassword)
Me.Controls.Add(Me.lblPassword)
Me.Controls.Add(Me.lblUser)
Me.Controls.Add(Me.txtUserName)
Me.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.MaximizeBox = False
Me.Menu = Me.MainMenu1
Me.MinimizeBox = False
Me.Text = "ãƒã‚°ã‚¤ãƒ³"

End Sub

Pls help me one more time.

KNC

Daniel Moth · Apr 21, 2005

So have you stepped into the method to locate which is the offending line
like I suggested? If you are going to post code you might as well post a
complete working sample (otherwise I have to compile your code in my
mind)...

Cheers
Daniel
--
http://www.danielmoth.com/Blog/

hi Daniel,

Sorry for tracking this thread very slow although I really need the
solution soon.
Below is detail of exception:

PDA.exe
frmLogin::set_cmdLogin+0x20
frmLogin::InitializeComponent+0x37
frmLogin::xctor=0x95
frmLogin::Main+0xa

And below is InitializeComponent function:

<System.Diagnostics.DebuggerStepThrough()> Private Sub
InitializeComponent()
Me.txtUserName = New System.Windows.Forms.TextBox
Me.lblUser = New System.Windows.Forms.Label
Me.lblPassword = New System.Windows.Forms.Label
Me.txtPassword = New System.Windows.Forms.TextBox
Me.cmdLogin = New System.Windows.Forms.Button
Me.cmdConfig = New System.Windows.Forms.Button
Me.MainMenu1 = New System.Windows.Forms.MainMenu
Me.InputPanel1 = New Microsoft.WindowsCE.Forms.InputPanel
Me.timerLogMem = New System.Windows.Forms.Timer
'
'txtUserName
'
Me.txtUserName.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.txtUserName.Location = New System.Drawing.Point(88, 40)
Me.txtUserName.MaxLength = 6
Me.txtUserName.Size = New System.Drawing.Size(88, 19)
Me.txtUserName.Text = ""
'
'lblUser
'
Me.lblUser.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.lblUser.Location = New System.Drawing.Point(2, 42)
Me.lblUser.Size = New System.Drawing.Size(80, 16)
Me.lblUser.Text = "æ°åã‚³ãƒ¼ãƒ‰"
Me.lblUser.TextAlign = System.Drawing.ContentAlignment.TopRight
'
'lblPassword
'
Me.lblPassword.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.lblPassword.Location = New System.Drawing.Point(10, 90)
Me.lblPassword.Size = New System.Drawing.Size(72, 16)
Me.lblPassword.Text = "ãƒ‘ã‚¹ãƒ¯ãƒ¼ãƒ‰"
Me.lblPassword.TextAlign =
System.Drawing.ContentAlignment.TopRight
'
'txtPassword
'
Me.txtPassword.Font = New System.Drawing.Font("MS PGothic",
9.0!, System.Drawing.FontStyle.Regular)
Me.txtPassword.Location = New System.Drawing.Point(88, 88)
Me.txtPassword.MaxLength = 8
Me.txtPassword.PasswordChar = Microsoft.VisualBasic.ChrW(42)
Me.txtPassword.Size = New System.Drawing.Size(88, 19)
Me.txtPassword.Text = ""
'
'cmdLogin
'
Me.cmdLogin.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.cmdLogin.Location = New System.Drawing.Point(32, 136)
Me.cmdLogin.Size = New System.Drawing.Size(72, 24)
Me.cmdLogin.Text = "ãƒã‚°ã‚¤ãƒ³"
'
'cmdConfig
'
Me.cmdConfig.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.cmdConfig.Location = New System.Drawing.Point(136, 136)
Me.cmdConfig.Size = New System.Drawing.Size(72, 24)
Me.cmdConfig.Text = "åˆæœŸè¨å®š"
'
'timerLogMem
'
'
'frmLogin
'
Me.Controls.Add(Me.cmdConfig)
Me.Controls.Add(Me.cmdLogin)
Me.Controls.Add(Me.txtPassword)
Me.Controls.Add(Me.lblPassword)
Me.Controls.Add(Me.lblUser)
Me.Controls.Add(Me.txtUserName)
Me.Font = New System.Drawing.Font("MS PGothic", 9.0!,
System.Drawing.FontStyle.Regular)
Me.MaximizeBox = False
Me.Menu = Me.MainMenu1
Me.MinimizeBox = False
Me.Text = "ãƒã‚°ã‚¤ãƒ³"

End Sub

Pls help me one more time.

KNC

exception in InitializeComponent of form

KNC

Sergey Bogdanov

KNC

Daniel Moth

KNC

Daniel Moth