Docking pane error on loading
Printed From: Codejock Forums
Category: Codejock Products
Forum Name: Docking Pane
Forum Description: Topics Related to Codejock Docking Pane
URL: http://forum.codejock.com/forum_posts.asp?TID=6555
Printed Date: 31 January 2025 at 11:41am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Docking pane error on loading
Posted By: dloring
Subject: Docking pane error on loading
Date Posted: 03 March 2007 at 5:05pm
|
Hi, I am new to this and I seem to be having a problem getting the docking pane set up. The code is below, but this always goes to the catch as soon as the code hits the paneA.Title with the error Object reference not set to an instance of an object. Does anyone have any idea what I am doing wrong?
Private arrPanes(1) As XtremeDockingPane.Pane
Private Sub FMain_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
Try
Dim paneA As XtremeDockingPane.Pane = DockingPanelManager.CreatePane(1, 200, 120, DockingDirection.DockBottomOf, Nothing)
paneA.Title = "Supplier Totals"
Dim paneB As XtremeDockingPane.Pane = DockingPanelManager.CreatePane(2, 200, 120, DockingDirection.DockRightOf, paneA)
paneB.Title = "Controls"
'DockingPanelManager.LoadState("DA Software", "GCOrders", "DPLayout")
Catch ex As Exception
MsgBox( "An error occured loading the Docking Panels: " & ex.Message, MsgBoxStyle.Information, gCST_AppTitle)
End Try
End Sub
Private Sub DockingPanelManager_AttachPaneEvent(ByVal sender As Object, ByVal e As AxXtremeDockingPane._DDockingPaneEvents_AttachPaneEvent) Handles DockingPanelManager.AttachPaneEvent
Dim nIndex As Integer = e.item.Id - 1
If arrPanes(nIndex) Is Nothing Then
Select Case nIndex
Case 0
arrPanes(nIndex) = New FPaneButtons
Case 1
arrPanes(nIndex) = New FPaneTotals
End Select
End If
e.item.Handle = arrPanes(nIndex).Handle
End Sub
|
Replies:
Posted By: Oleg
Date Posted: 04 March 2007 at 4:09am
|
Hi,
Do you have same message with ActiveX\DockingPane\VB.NET\DockingPane sample?
Please attach whole project to debug it
-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS
|
Posted By: Oleg
Date Posted: 04 March 2007 at 4:11am
Ohh, seems problem in arrPanes(nIndex) line. You never get momory for arrPanes objects.
See our sample arrPanes in samples is array of child objects - not XtremeDockingPane.Pane
-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS
|
Posted By: dloring
Date Posted: 06 March 2007 at 8:09am
|
Hi Oleg
I removbed the XtremeDockingPane.Pane from the declaration of arrPanes but I still get the same error message.
I have tried to make sure everything is as per the examples, but I can't get it to work.
Regards
David
|
Posted By: dloring
Date Posted: 06 March 2007 at 8:13am
|
Hi Oleg,
I have zipped the project in case you want to have a look at it. It's 785 KB. Can I attach it in the forum, or can I email it to you?
Regards
David
|
Posted By: dloring
Date Posted: 06 March 2007 at 8:22am
|
Hi Oleg,
If you need the SQL Server 2005 Express database it zips to 2 MB. Is this OK?
Regards
David
|
Posted By: Oleg
Date Posted: 06 March 2007 at 9:22am
|
Hi,
show me what you have in FMain_Load and DockingPanelManager_AttachPaneEvent now.
-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS
|
Posted By: dloring
Date Posted: 06 March 2007 at 9:42am
|
Hi Oleg
Private Sub FMain_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
Try
Me.SeasonsTableAdapter.Fill(Me.GCBTallyDataSet.Seasons)
Me.BuyingTypesTableAdapter.Fill(Me.GCBTallyDataSet.BuyingTypes)
'Open the connection for the form
cnnData.Open()
Try
Dim paneA As XtremeDockingPane.Pane = DockingPanelManager.CreatePane(1, 200, 120, DockingDirection.DockBottomOf, Nothing)
paneA.Title = "Supplier Totals"
Dim paneB As XtremeDockingPane.Pane = DockingPanelManager.CreatePane(2, 200, 120, DockingDirection.DockRightOf, paneA)
paneB.Title = "Controls"
'DockingPanelManager.LoadState("DA Software", "GCOrders", "DPLayout")
Catch ex As Exception
MsgBox( "An error occured loading the Docking Panels: " & ex.Message, MsgBoxStyle.Information, gCST_AppTitle)
End Try
Catch ex As SqlClient.SqlException
MsgBox( "The system has thrown an exception when opening the connection to the database." & vbCrLf & vbCrLf & ex.Message _
& "[" & ex.ErrorCode & "]", MsgBoxStyle.Exclamation, gCST_AppTitle)
Me.Close()
End Try
End Sub
Private Sub DockingPanelManager_AttachPaneEvent(ByVal sender As Object, ByVal e As AxXtremeDockingPane._DDockingPaneEvents_AttachPaneEvent) Handles DockingPanelManager.AttachPaneEvent
Dim nIndex As Integer = e.item.Id - 1
If arrPanes(nIndex) Is Nothing Then
Select Case nIndex
Case 0
arrPanes(nIndex) = New FPaneButtons
Case 1
arrPanes(nIndex) = New FPaneTotals
End Select
End If
e.item.Handle = arrPanes(nIndex).Handle
End Sub
I also tried it with:
Dim paneA = DockingPanelManager.CreatePane(1, 200, 120, DockingDirection.DockBottomOf, Nothing)
That did not wrok either
|
Posted By: dloring
Date Posted: 06 March 2007 at 9:43am
|
Forgot to add:
Private arrPanes(1)
Changed the declaration
|
Posted By: Oleg
Date Posted: 07 March 2007 at 5:15am
|
try
Private arrPanes(2)
if will not help, attach whole project to debug.
-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS
|
Posted By: dloring
Date Posted: 09 March 2007 at 7:34pm
|
Hi Oleg,
How does one upload files?
David
|
Posted By: dloring
Date Posted: 09 March 2007 at 9:56pm
|
Hi Oleg
Immediately after passing through Dim paneA the 'Autos' look like this. Note the error!
Does this help?
- DockingPanelManager {AxXtremeDockingPane.AxDockingPane} AxXtremeDockingPane.AxDockingPane
+ AccessibilityObject {System.Windows.Forms.Control.ControlAccessibleObject} System.Windows.Forms.AccessibleObject
AccessibleDefaultActionDescription Nothing String
AccessibleDescription Nothing String
AccessibleName Nothing String
AccessibleRole Default {-1} System.Windows.Forms.AccessibleRole
- ActivePane {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."} XtremeDockingPane.Pane
+ Data {System.Collections.ListDictionaryInternal} System.Collections.IDictionary
HelpLink Nothing String
InnerException Nothing System.Exception
Message "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." String
Source "mscorlib" String
StackTrace " at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
at XtremeDockingPane._DDockingPane.get_ActivePane()
at AxXtremeDockingPane.AxDockingPane.get_ActivePane()" String
+ TargetSite {System.Reflection.RuntimeMethodInfo} System.Reflection.MethodBase
AllowDrop False Boolean
Anchor 5 System.Windows.Forms.AnchorStyles
+ AutoScrollOffset {X = 0 Y = 0} System.Drawing.Point
AutoSize False Boolean
+ BackColor "{Name=fffafdd2, ARGB=(255, 250, 253, 210)}" System.Drawing.Color
BackgroundImage Nothing System.Drawing.Image
BackgroundImageLayout Tile {1} System.Windows.Forms.ImageLayout
+ BindingContext {System.Windows.Forms.BindingContext} System.Windows.Forms.BindingContext
Bottom 145 Integer
+ Bounds {X = 495 Y = 121 Width = 24 Height = 24} System.Drawing.Rectangle
CanFocus False Boolean
CanSelect False Boolean
Capture False Boolean
CausesValidation True Boolean
CheckForIllegalCrossThreadCalls True Boolean
+ ClientRectangle {X = 0 Y = 0 Width = 24 Height = 24} System.Drawing.Rectangle
+ ClientSize {Width = 24 Height = 24} System.Drawing.Size
CompanyName "AxXtremeDockingPane" String
Container Nothing System.ComponentModel.IContainer
+ ContainingControl {GCOrders.FMain} System.Windows.Forms.ContainerControl
ContainsFocus False Boolean
ContextMenu Nothing System.Windows.Forms.ContextMenu
ContextMenuStrip Nothing System.Windows.Forms.ContextMenuStrip
+ Controls {System.Windows.Forms.Control.ControlCollection} System.Windows.Forms.Control.ControlCollection
Created False Boolean
+ Cursor {System.Windows.Forms.Cursor} System.Windows.Forms.Cursor
+ DataBindings {System.Windows.Forms.ControlBindingsCollection} System.Windows.Forms.ControlBindingsCollection
+ DefaultBackColor "{Name=Control, ARGB=(255, 236, 233, 216)}" System.Drawing.Color
+ DefaultFont {Name = "Microsoft Sans Serif" Size=8.25} System.Drawing.Font
+ DefaultForeColor "{Name=ControlText, ARGB=(255, 0, 0, 0)}" System.Drawing.Color
+ DisplayRectangle {X = 0 Y = 0 Width = 24 Height = 24} System.Drawing.Rectangle
Disposing False Boolean
Dock None {0} System.Windows.Forms.DockStyle
EditMode False Boolean
Enabled True Boolean
Focused False Boolean
+ Font {Name = "Arial" Size=9.75} System.Drawing.Font
+ ForeColor "{Name=ControlText, ARGB=(255, 0, 0, 0)}" System.Drawing.Color
Handle 395318 System.IntPtr
HasAboutBox True Boolean
HasChildren False Boolean
Height 24 Integer
Icons Nothing XtremeDockingPane.ImageManagerIcons
ImageList Nothing Object
ImeMode NoControl {0} System.Windows.Forms.ImeMode
InvokeRequired False Boolean
IsAccessible False Boolean
IsDisposed False Boolean
IsHandleCreated True Boolean
IsMirrored False Boolean
+ LayoutEngine {System.Windows.Forms.Layout.DefaultLayout} System.Windows.Forms.Layout.LayoutEngine
Left 495 Integer
+ Location {X = 495 Y = 121} System.Drawing.Point
+ Margin {System.Windows.Forms.Padding} System.Windows.Forms.Padding
+ MaximumSize {Width = 0 Height = 0} System.Drawing.Size
+ MinimumSize {Width = 0 Height = 0} System.Drawing.Size
ModifierKeys None {0} System.Windows.Forms.Keys
MouseButtons None {0} System.Windows.Forms.MouseButtons
+ MousePosition {X = 1121 Y = 534} System.Drawing.Point
Name "DockingPanelManager" String
+ OcxState {System.Windows.Forms.AxHost.State} System.Windows.Forms.AxHost.State
+ Options {System.__ComObject} XtremeDockingPane.DockingPaneOptions
+ Padding {System.Windows.Forms.Padding} System.Windows.Forms.Padding
+ PaintManager {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."} XtremeDockingPane.DockingPanePaintManager
+ PanelPaintManager {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."} XtremeDockingPane.TabPaintManager
Panes In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. XtremeDockingPane.Pane
PanesCount 0 Integer
+ Parent {System.Windows.Forms.Panel} System.Windows.Forms.Control
+ PreferredSize {Width = 24 Height = 24} System.Drawing.Size
ProductName "AxXtremeDockingPane" String
ProductVersion "10.2.0.0" String
RecreatingHandle False Boolean
Region Nothing System.Drawing.Region
Right 519 Integer
RightToLeft No {0} System.Windows.Forms.RightToLeft
ScaleMode xtpScaleAuto {0} XtremeDockingPane.XTPScaleMode
Site Nothing System.ComponentModel.ISite
+ Size {Width = 24 Height = 24} System.Drawing.Size
TabIndex 24 Integer
+ TabPaintManager {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."} XtremeDockingPane.TabPaintManager
TabStop True Boolean
Tag Nothing Object
Text "" String
ToolTipContext Nothing XtremeDockingPane.ToolTipContext
Top 121 Integer
+ TopLevelControl {GCOrders.FMDIMain} System.Windows.Forms.Control
UseWaitCursor False Boolean
Visible False Boolean
VisualTheme ThemeOffice {1} XtremeDockingPane.VisualTheme
Width 24 Integer
+ WindowTarget {System.Windows.Forms.Control.ControlNativeWindow} System.Windows.Forms.IWindowTarget
+ cnnData {System.Data.SqlClient.SqlConnection} System.Data.SqlClient.SqlConnection
paneA Nothing XtremeDockingPane.Pane
paneB Nothing XtremeDockingPane.Pane
|
Posted By: Oleg
Date Posted: 12 March 2007 at 2:14am
|
Hi,
Send project to mailto:support@codejock.com - support@codejock.com
-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS
|
|