Hi,
I'm using the DataGridView in VB.NET 2.0. The DataSource is a Generic List
of a custom class0: lstMyPersonnes = New List(Of clsPersonne).
When I add a new clsPersonne to lstMyPersonnes, and rebind the
lstMyPersonnes to my DataGridView.da taSource, it shows the new record in
the DataGridView as it should be.
But when I click on a cell of that row, I suddenly got this error: "Index -1
does not have a value"...
Does anybody has any idea how to get around this problem?
Thanks a lot in advance,
Pieter
PS: I'm using the RC of Visual Team Suite.
The whole exception:
System.IndexOut OfRangeExceptio n was unhandled
Message="Index -1 does not have a value."
Source="System. Windows.Forms"
StackTrace:
at System.Windows. Forms.CurrencyM anager.get_Item (Int32 index)
at System.Windows. Forms.CurrencyM anager.get_Curr ent()
at
System.Windows. Forms.DataGridV iew.DataGridVie wDataConnection .OnRowEnter(Dat a
GridViewCellEve ntArgs e)
at System.Windows. Forms.DataGridV iew.OnRowEnter( DataGridViewCel l&
dataGridViewCel l, Int32 columnIndex, Int32 rowIndex, Boolean
canCreateNewRow , Boolean validationFailu reOccurred)
at System.Windows. Forms.DataGridV iew.SetCurrentC ellAddressCore( Int32
columnIndex, Int32 rowIndex, Boolean setAnchorCellAd dress, Boolean
validateCurrent Cell, Boolean throughMouseCli ck)
at System.Windows. Forms.DataGridV iew.OnCellMouse Down(HitTestInf o hti,
Boolean isShiftDown, Boolean isControlDown)
at
System.Windows. Forms.DataGridV iew.OnCellMouse Down(DataGridVi ewCellMouseEven t
Args e)
at System.Windows. Forms.DataGridV iew.OnMouseDown (MouseEventArgs e)
at System.Windows. Forms.Control.W mMouseDown(Mess age& m, MouseButtons
button, Int32 clicks)
at System.Windows. Forms.Control.W ndProc(Message& m)
at System.Windows. Forms.DataGridV iew.WndProc(Mes sage& m)
at
System.Windows. Forms.Control.C ontrolNativeWin dow.OnMessage(M essage& m)
at System.Windows. Forms.Control.C ontrolNativeWin dow.WndProc(Mes sage&
m)
at System.Windows. Forms.NativeWin dow.DebuggableC allback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows. Forms.UnsafeNat iveMethods.Disp atchMessageW(MS G&
msg)
at
System.Windows. Forms.Applicati on.ComponentMan ager.System.Win dows.Forms.Unsa f
eNativeMethods. IMsoComponentMa nager.FPushMess ageLoop(Int32 dwComponentID,
Int32 reason, Int32 pvLoopData)
at
System.Windows. Forms.Applicati on.ThreadContex t.RunMessageLoo pInner(Int32
reason, ApplicationCont ext context)
at
System.Windows. Forms.Applicati on.ThreadContex t.RunMessageLoo p(Int32 reason,
ApplicationCont ext context)
at System.Windows. Forms.Applicati on.Run(Applicat ionContext context)
at
Microsoft.Visua lBasic.Applicat ionServices.Win dowsFormsApplic ationBase.OnRun (
)
at
Microsoft.Visua lBasic.Applicat ionServices.Win dowsFormsApplic ationBase.DoApp l
icationModel()
at
Microsoft.Visua lBasic.Applicat ionServices.Win dowsFormsApplic ationBase.Run(S t
ring[] commandLine)
at Ghost.My.MyAppl ication.Main(St ring[] Args) in
17d14f5c-a337-4978-8281-53493378c1071.v b:line 81
at System.AppDomai n.nExecuteAssem bly(Assembly assembly, String[]
args)
at System.AppDomai n.ExecuteAssemb ly(String assemblyFile, Evidence
assemblySecurit y, String[] args)
at Microsoft.Visua lStudio.Hosting Process.HostPro c.RunUsersAssem bly()
at System.Threadin g.ThreadHelper. ThreadStart_Con text(Object state)
at System.Threadin g.ExecutionCont ext.Run(Executi onContext
executionContex t, ContextCallback callback, Object state)
at System.Threadin g.ThreadHelper. ThreadStart()
0  3619  This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: DraguVaso |
last post by:
Hi,
I'm using the DataGridView in VB.NET 2.0. The DataSource is a Generic List
of a custom class0: lstMyPersonnes = New List(Of clsPersonne).
When I add a new clsPersonne to lstMyPersonnes, and rebind the
lstMyPersonnes to my DataGridView.dataSource, it shows the new record in
the DataGridView as it should be.
But when I click on a cell of that row, I suddenly got this error: "Index -1
|
by: ME |
last post by:
I was running into a problem with the DataGridView while binding it to an
object Collection. I got it working and I thought others might like to know
how.
-------------- Problem -------------
The grid was bound to a simple object collection. The object contained
string and decimal properties, nothing to fancy. When an item was added to
the collection I would databind as follows (this happened on each item
"Add"):
|
by: stevenhaochen |
last post by:
I add a user control (a simple textbox control) to customize
datagridview column to test how to add user control to datagridview. I
found a weired behavior. I can not input "q", "!", "#".
But I can input other keys (e.g. "Q", "@", "W")
Anybody found this question? It looks like the textbox eat the input
'q' and does not show up in the text.
Public Class DataGridViewEditorButtonEditingControl
Inherits TextBox
|
by: Riley |
last post by:
Need some help. I am using datagridview in 2005 with C#. I am calling a web
service and filling the datagridview with the data returned. This all works
fine. Next step is to take a value from one of the cells in the datagridview
and return it back with some other values in an object for another webservice
call. The problem is I dont know how to access a cell in a datagridview to do
this. Im pretty sure you have to do it thru the binding...
|
by: Johnny E. Jensen |
last post by:
Hello
Dot sure if this it the right group but here goes.
I'am using the DataGridView multiple times in my application, and then i'll
read a book on inherience, and that opend a new world for me. So i'll
Created a class that inherience from the DataGridView Like:
public class AWDataGridView : System.Windows.Forms.DataGridView
In the Dispose event i'll want to store some info about the DataGridView's
| | |
by: Scotty |
last post by:
Hi,
Hope someone can help me
I have a datagridview sith data
Code below works fine if I print the data if there is only 1 page (without
using
'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If intRowPos <= 10 Then
e.HasMorePages = False
|
by: Scotty |
last post by:
Hi,
Hope someone can help me
I have a datagridview I want to print
Code below works fine if I print the data if there is only 1 page (without
using hasmore pages
'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If intRowPos <= 10 Then
e.HasMorePages = False
|
by: =?Utf-8?B?anAybXNmdA==?= |
last post by:
I use unbound DataGridView controls in my form (simply because I have to
manually message my data before populating the DataGridView with it).
Say I clear all the info from the DataGridView:
DataGridView1.Columns.Clear()
Now I manually add new columns to fill:
DataGridView1.Columns.Add("Date_Time", "Date_Time")
|
by: Miro |
last post by:
Sorry for the cross post. I am stuck.
I have a datagridview for poker rounds.
Basically there are 3 columns in this datagridview.
"Round"
"SmallBlind"
"BigBlind"
I have an issue when I tab through the new row being added. It does not
'Add' that row, nor setup the 'next blank add row' so I can continue to tab
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| | |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
