VS 2008 DataVisualization - Why Can Access System.Windows.Forms.DataVisualization.Charting.Utilities Within C# But Not VB
Feb 3, 2010why I can access System.Windows.Forms.DataVisualization.Charting.Utilities within C#, but not VB?
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Control Width Of Custom Labels In System.Web.UI.DataVisualization.Charting?
Jan 20, 2011I have some code that produces a simple thermometer-like chart using an old Dundas charting component (ver 7).[code]...
View 1 RepliesC# - Datavisualization Datetime Axis Quarterly Format?
May 22, 2012I am using the .NET datavisualization library to create some charts. The data is all time series based (ie, the x-axis is dates). I know that I can use custom date and time format strings to format the x-axis labels (formatting from[URL]..But what if I wanted to format the labels via a custom function that isn't provided in the .NET library?
To be more specific, is it possible to format the x-axis labels using the Quarter of the date? In other words:
Jan-Mar: Q1
Apr-Jun: Q2
Jul-Sep: Q3
Oct-Dec: Q4
VS 2008 : A First Chance Exception Of Type 'System.InvalidOperationException' Occurred In System.Windows.Forms.dll
Feb 12, 2011A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
View 2 RepliesImplicit Conversions From 'System.Windows.Forms.Control' To 'System.Windows.Forms.Webbrowser'
Sep 8, 2010I 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]...
Cannot Import System.Windows.Media.Imaging And System.Windows.Forms Or System.Reflect?
Mar 16, 2009With the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
[code].....
Unable To Cast Object Of Type 'System.Windows.Forms.Button' To Type 'System.Windows.Forms.TextBox'
Apr 28, 2009I 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..
View 4 RepliesForms :: Error - An Unhandled Exception Of Type 'System.StackOverflowException' Occurred In System.Windows.Forms.dll
Apr 14, 2011An 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]....
VS 2008 String To System.Windows.Forms.Control?
Dec 9, 2009I got an error that i cant convert string to System.Windows.Forms.Control and i was wondering how could i do it this is the code that contains error:
If ResultRichTextBox.Contains("Text") Then
VS 2008 Difference Between System.Timers.Timer And System.Windows.Forms.Timer?
Jun 15, 2009I'm wondering what exactly is the difference System.Timers.Timer and System.Windows.Forms.Timer???
View 4 RepliesVS 2008 'ListCount' Is Not A Member Of 'System.Windows.Forms.ListBox'
Nov 9, 2009Got this error: Error2'ListCount' is not a member of 'System.Windows.Forms.ListBox'.C:STRCC Network AdminNetworkAdminRoomPlan.vb522NetworkAdmin
When trying to do the following:
For i = 0 To ListBox1.ListCount - 1
Next
referecnes to System.Windows.Forms have been added
VS 2008 'SetItemChecked' Is Not A Member Of 'System.Windows.Forms.ListView'
Feb 9, 2012I have an application ..windowsform [my solution name]
I am using CheckedListBox .. whereas I want ListView instead of CheckedListBox
but I get the following error
vb.net
ListView.Items.AddRange(DirectCast(ListBox.SelectedItem, [produts]).files)
error for this code
Overload resolution failed because no accessible 'AddRange' can be called with these arguments:
'Public Sub AddRange(items As
[Code]....
Error - Base Class 'System.Windows.Forms.Panel' Specified For Class 'MenuButton' Cannot Be Different From The Base Class 'System.Windows.Forms.UserControl'
Mar 12, 2010When 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?
VS 2008 Error - Unable To Cast Object Of Type 'System.Windows.Forms.MouseEventArgs'
Nov 7, 2009When 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]....
VS 2008 Error 1 Operator '&' Is Not Defined For Types 'String' And 'System.Windows.Forms.Comb?
Sep 2, 2009with 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))
View 5 RepliesUnable To Cast Object Of Type 'System.Windows.Forms.Label' To Type 'System.Windows.Fo
Jun 12, 2011i need to get data from checkbox in a groupbox. in the groupbox, it also have a label. so my coding as below
[Code]...
Using VB 2008 & Access 2007 For Windows Forms Application Having Typed Datasets?
Nov 20, 2010I am using VB 2008 & Access 2007 for windows forms application having typed datasets while creating connection to DB vb asks to store connection string so i did it now that i want to know where is the actual path of file where these connection strings are stored. b'cas after runnig a macro in Access Database i lost all these connections from Data Source Configuration Wizard Combo Box & also i am anable to create a new connection to Databases.I have tried to reinstall the entire Visual Studio couple of times .
View 17 RepliesOperator '*' Is Not Defined For Types 'System.Windows.Forms.VscrollBar' And 'Systems.Windows.Forms.VscrollBar
Oct 29, 2011I 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.'
Value Of Type 'System.Windows.Forms.WebBrowser' Cannot Be Converted To 'System.Window
Jan 23, 2010Private Sub wb_Scrape(ByVal sender As System.Object, ByVal e As
[Code]...
Vb 2008 Number Guess Game - Operator '<' Is Not Defined For Types 'System.Windows.Forms.Button' And 'Integer'
Oct 29, 2011I am getting Errors: Operator '<' is not defined for types 'System.Windows.Forms.Button' and 'Integer'.
Operator '>' is not defined for types 'System.Windows.Forms.Button' and 'Integer'.
Value of type 'Integer' cannot be converted to 'System.Windows.Forms.Button'.
And my program does not work!
Below is my code..............
Private Sub ProgressBar1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ProgressBar1.Click
ProgressBar1.Value = TextBox1.Text
End Sub
[CODE]...
'System.AccessViolationException' Occurred In System.Windows.Forms.dll Immediately Before Entering A Click Handler?
Oct 20, 2010Win7 64 bit; fully patched VS2008 targeting FW2.0; VB.Net; running in Debug Mode (not tested in Release mode)I have a resonably complex app which I am refactoring a bit. As part of that, I relocated some code from a subroutine into a Click Event Handler. The Event Handler will, late in the handler, call the, reduced in function, subroutine. The point of this is thatNow when I click the button associated with the modified Handler I get:A first chance exception of type 'System.AccessViolationException' occurred in System.Windows.Forms.dll<br />With Error System.AccessViolationException Attempted to read or write protected memory.This is often an indication that other memory is corrupt.
at MusicManager2009.frmMain2.cmdLoadAlbum_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
[code].....
All functions of the app, except those that start from the buttonclick in question, work as before in the problem version.The problem persists after rebuilding the entire solution, after restarting VS, and after rebooting the PC.
Error - An Unhandled Exception Of Type 'System.StackOverflowException' Occurred In System.Windows.Forms.dll
Feb 19, 2010When 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]....
Error : A First Chance Exception Of Type 'System.ArgumentException' Occurred In System.Windows.Forms.dll
Nov 16, 2009I 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]....
Error : An Unhandled Exception Of Type 'System.ArgumentOutOfRangeException' Occurred In System.windows.forms.dll
May 6, 2009I 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].....
Error:A First Chance Exception Of Type 'System.Reflection.TargetParameterCountException' Occurred In System.Windows.Forms.dll
Feb 6, 2010I 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].....
Cast A System.string To System.windows.forms.form?
Feb 23, 2009I want to cast a system.string to system.windows.forms.form
View 2 RepliesForms :: String Cannot Be Converted To System.windows.forms.label
Mar 31, 2010I am writing a program for my A-level coursework But for some reason I got this build error this has never occurred to me before, I have no idea why I can't use string for the name of my form.
View 8 RepliesInherits System.Windows.Forms.Form Is Missing In New Forms?
Mar 5, 2012When I add a new, empty form to my VB.NET VS9 project, the linenherits System.Windows.Forms.Formis missing.What am I doing wrong here?I thought it would be added automatically.I experienced that some thing get weird if this line is not there (Form_Load is not firing, I think).
View 3 RepliesIDE :: DataGridView1_CellLeave(sender, New System.EventArgs), Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Windows.Forms.DataGridViewCellEventArgs'.
Jun 27, 2011VB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
VS 2008 Passing A Form - Get The Error.'cmbDataTable' Is Not A Menber Of 'System.Windows.Forms.Form'?
Nov 26, 2010I'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.
