DataGridView - -1 Error From The System.Windows.Forms

Jun 21, 2010

OK, in it's simpest terms, I have a custom object (all string Items) which I add to a list of those items. The list is declared as a global variable. One form updates the list, another contains a dataGridView (vs.net 3.5) that displays the list items. The view displays the correct data. For some reason, if I select a header in the dgv before it's populated, that's fine, but if I select it (click anywhere with the mouse) it bugs out with an Index = -1 error from the System.Windows.Forms. CurrencyManager.get_Item(Int32 index) bit.

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Forms :: Error - An Unhandled Exception Of Type 'System.StackOverflowException' Occurred In System.Windows.Forms.dll

Apr 14, 2011

An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll it also says make sure you do not have infinate loop or infinate recursion il give all code in order that they are executed in Check the chechbox and it disables all irelevent stuff and populates the combobox

Private Sub CheckBox_Spray_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox_Spray.CheckedChanged
If Me.CheckBox_Spray.Checked = True Then

[code]....

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Error - An Unhandled Exception Of Type 'System.StackOverflowException' Occurred In System.Windows.Forms.dll

Feb 19, 2010

When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"

Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")

[code]....

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Error : A First Chance Exception Of Type 'System.ArgumentException' Occurred In System.Windows.Forms.dll

Nov 16, 2009

I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.

Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded

[code]....

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Error : An Unhandled Exception Of Type 'System.ArgumentOutOfRangeException' Occurred In System.windows.forms.dll

May 6, 2009

I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.

Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form

[code].....

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Error:A First Chance Exception Of Type 'System.Reflection.TargetParameterCountException' Occurred In System.Windows.Forms.dll

Feb 6, 2010

I am working on a card game, and i get this werid error:

A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll

The code that is cousing this error is:

Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then

[code].....

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Error - Base Class 'System.Windows.Forms.Panel' Specified For Class 'MenuButton' Cannot Be Different From The Base Class 'System.Windows.Forms.UserControl'

Mar 12, 2010

When I do this

Public Class cInherits : Inherits Panel

I get this: Base class 'System.Windows.Forms.Panel' specified for class 'MenuButton' cannot be different from the base class 'System.Windows.Forms.UserControl' of one of its other partial types.

How do I inherit?

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DataBind Is Not A Member Of System.Windows.Forms.DataGridView

May 19, 2009

when I use datagridview1.databind() getting error as : DataBind is not a member of System.Windows.Forms.DataGridView..

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DataBind Is Not A Member Of System.Windows.Forms.DataGridView?

Apr 12, 2011

hen I use datagridview1.databind() getting error as : DataBind is not a member of System.Windows.Forms.DataGridView

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Windows Forms App: System.NullReferenceException Error

May 22, 2012

I have been trying to figure out the source of error in my application. What this function (GetConcentrations()) is to display data from my database onto a DataGridView. The function is called in the PageLoad but works fine but when I call it in another Sub, I get this error.

Here is the code:

Private Sub GetConcentrations()
Dim conString As String = ConfigurationManager.ConnectionStrings("dbAsthmaConnectionString").ConnectionString
Me.dataAdapter = New SqlDataAdapter("Select * from tblConcentrations", conString)

[code]....

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Implicit Conversions From 'System.Windows.Forms.Control' To 'System.Windows.Forms.Webbrowser'

Sep 8, 2010

I have the code which checks if there is a selected tab

Private Function GetBrowser() As WebBrowser
If TabControl1.SelectedTab IsNot Nothing Then
For Each c As Control In TabControl1.SelectedTab.Controls
If TypeOf (c) Is WebBrowser Then
Return c

[Code]...

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Treeview Node "Error 1 Value Of Type 'System.Windows.Forms.TreeNode' Cannot Be Converted To 'System.IO.SearchOption'"

Jan 17, 2011

[Code]...

there is one problem here the root node on the line "GetDirectories(info.GetDirectories(0, rootNode))" here is the error "Error 1 Value of type 'System.Windows.Forms.TreeNode' cannot be converted to 'System.IO.SearchOption'."

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Error : Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Windows.Forms.KeyPressEventArgs'

May 16, 2011

[URL]The issue is as soon as I change the value of the text boxes it gives me an error and forces me to close the project.

The error is:Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.KeyPressEventArgs'.

However I'm supposed to clear the number of gallons used and the total charged when a change is made to the contents of the 2 text boxes on the form.

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Error'Value' Is Not A Member Of 'System.Windows.Forms.TextBox'

Apr 28, 2010

ERROR:Error'Value' is not a member of 'System.Windows.Forms.TextBox'.

My Code:

Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
If TextBox3.Value > TextBox2.Value Then

[Code].....

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Error - 'InterectsWith' Is Not A Member Of 'System.Windows.Forms.Picturebox'

Dec 19, 2010

I am getting the error " 'InterectsWith' is not a member of 'System.Windows.Forms.Picturebox'. can anyone help me with this? and my code is:

Public Class Form1
Dim player_stand_l As Image
Dim player_stand_r As Image

[code]....

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Error: Type System Windows Forms Application Has No Constructors

Sep 28, 2010

I grabbed an example program to modify for my needs to grab data from a Word doc and transform to XML. Right off the bat I get multiple errors. [Code] I am getting Error Type 'System.Windows.Forms.Application' has no constructors.

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Getting An Error About Filesearch Not Being A Memeber Of 'system.windows.forms.application'?

Aug 23, 2010

I am adapting this code from excel vba to a Visual Studio program I am writing that will list files that are relevant to given information. I keep getting an error about filesearch not being a memeber of 'system.windows.forms.application' on line fs = Application.FileSearch, I have read and saw that I should be using the DIR function...

Sub SearchForForms()
Dim fs As FileSearch ', ws As Worksheet, i As Long
Dim SearchFileName As String
fs = Application.FileSearch <~~~ ERROR[code]....

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Cannot Import System.Windows.Media.Imaging And System.Windows.Forms Or System.Reflect?

Mar 16, 2009

With the following imported namespaces in my project :

Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..

[code].....

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Keep Getting A "System InvalidOperationException Occurred In System Windows Forms Dll" Error

Jun 7, 2010

I've just started learning VB.NET with VS 9.0; a small application I'm working on keeps returning an "A first chance exception of type System InvalidOperationException occurred in System Windows Forms dll" error from the Immediate Window. The application has almost zero functionality so far, it consists of a menu strip with:

File About
|Open
|Save
|Save As
|Quit

The only code I have written opens an Open File dialog, a Save As dialog, an About window with background sound and an OK button, and the Quit button which exits.

Since there is almost no code for me to search through, I can't understand why there would be an error. The program runs just fine when I'm debugging it too.

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Public Sub Show (as Owner System.windows.forms.iwin32window) Error

Aug 23, 2009

public sub show(as owner system.windows.forms.iwin32window) error

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Unable To Cast Object Of Type 'System.Windows.Forms.Button' To Type 'System.Windows.Forms.TextBox'

Apr 28, 2009

I have a panel with some controls in it (several textboxes, a slider, 2 buttons, and a small groupbox).. When I click a button, I want all of the textboxes within the panel to be readonly... So I have this code: [code] When I run it though, I get the following error:Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.TextBox'.If I remove a button, it moves on to give me the same error but for a label..

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VS 2008 Error - Unable To Cast Object Of Type 'System.Windows.Forms.MouseEventArgs'

Nov 7, 2009

When executing this code I get this error:

Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.Windows.Forms.DataGridViewCellMouseEventArgs'.

Private Sub NoteGrid_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles NoteGrid.CellContentClick
Try

[code]....

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VS 2008 Error 1 Operator '&' Is Not Defined For Types 'String' And 'System.Windows.Forms.Comb?

Sep 2, 2009

with this code dont know wht its not working source = wc.DownloadString(String.Format("http://" & cboHSearch & "/cse?cx=013269018370076798483:gg7jrrhpsy4&cof=FORID:1&q=" + cboEngine.Text + "&sa=Search", Me.cboEngine.Text.Replace(" "c, "+"c), resultCounter))

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Custom DataGridViewColumn - Error: 'Public Event ItemCheck(sender As Object, E As System.Windows.Forms.ItemCheckEventArgs)'

Jan 19, 2012

following code from c# to visual basic, and I'm coming up with the following error: 'Public Event ItemCheck(sender As Object, e As System.Windows.Forms.ItemCheckEventArgs)' as an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.

[Code]...

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System.windows.forms.datagridview Object - "disabled State"

Jun 21, 2010

is it true that if the AllowEdit property is set to false, any DataGridViewComboBoxColumn that my DataGridView has will be in a "disabled state" (will not allow the user to change the value of the DataGridViewComboBoxColumn) AND there is no way i can make it in an "enabled state" unless i switch the AllowEdit to true?

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Error "2 Operator '<=' Is Not Defined For Types 'System.Windows.Forms.TextBox"

Mar 4, 2011

im sure that this is incredibly simple but im very new to this. could someone tell me what Error 2 Operator '<=' is not defined for types 'System.Windows.Forms.TextBox' and 'Integer'. K:programmingchapter 4 labchapter 4 labchapter 4 labForm1.vb 16 24 chapter 4 lab

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VS 2008 Passing A Form - Get The Error.'cmbDataTable' Is Not A Menber Of 'System.Windows.Forms.Form'?

Nov 26, 2010

I'm upgrading a project from VB6 to VB2008.I have a routine that clears a combo box, named 'cmbDataTable' which could be on any form. I pass the form and the combo box is cleared.


[code]...

I assumed it would be the same in VB2008 but I get the error.'cmbDataTable' is not a menber of 'System.Windows.Forms.Form'I am working my way through the project, first updating the global procedures - this is one - I haven't written the calls so cmbDataTable doesn't yet exist.

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Error: The Designer Cannot Process The Code At Line 25: Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font

Mar 11, 2010

THis is my error: The designer cannot process the code at line 25: Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified. Please remove any changes and try opening the designer again.

Callstack is:
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.CreateQuoteExpression(XmlElementData xmlElement)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.XML.CodeDomXmlProcessor.XmlElementData.get_CodeDomElement()

[code]....

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Unable To Cast Object Of Type 'System.Windows.Forms.Label' To Type 'System.Windows.Fo

Jun 12, 2011

i need to get data from checkbox in a groupbox. in the groupbox, it also have a label. so my coding as below

[Code]...

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Operator '*' Is Not Defined For Types 'System.Windows.Forms.VscrollBar' And 'Systems.Windows.Forms.VscrollBar

Oct 29, 2011

I am trying to use values from form1 in my project, in form2, but Im not sure how to do it. I've tried

txtboxTotal = (Form1.vsbLength * Form1.vsbWidth) * Pattern

But I get: operator '*' is not defined for types 'System.Windows.Forms.VscrollBar' and 'Systems.Windows.Forms.VscrollBar.'

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