Lock Type And Cursor Types
May 5, 2011I'd like a simple program to understand the lock type and its usage. Also, please give a brief example of cursor types.
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VS 2008 THe JuMpIN CuRsOr - Make Cursor To Jump To The Next Textbox After Type The Digit
Jan 14, 2010how can i make my cursor to jump to the next textbox after i type the digit
View 3 RepliesHow To Lock A Computer Until User Types Correct Password
Jun 3, 2012ok, i want to create a program with a button that when pressed will lock my computer until the user presses the number five key.
View 3 RepliesHow To Lock The Computer Till The User Types In The Right Password
Jan 13, 2009how to lock the computer till the user types in the right password! VB 2008
View 3 RepliesWay To Remove All Other Cursor Types From Application Collection?
Sep 26, 2010I have a nice mouse cursor that I attached to every event on the form and the controls, and I would like it to remain always the same cause some times it changes to cursor appstarting.Is there a way to remove all the other cursor types from the application collection?
View 2 RepliesCast Value Type To Nullable Enumeration Type In Generic Object If All Types Are Unknown At Write-time?
Dec 14, 2011I have a generic Class I'm using to hold information loaded from a database.I have a method which takes a DataRow as an argument, uses the object's known column name and extracts the data from the DataRow, such that:Dim loadData As T = CType(myDataRow("myColumnName"), T))works as my default assignment in most cases.Unfortunately, due to some horrifying design constraints, some of my columns may be null, and may also be taken from enumerations.This means that when <T> is Nullable(Of SomeEnumeration) the above code does not work because I can't cast 0 directly to SomeEnumeration.Zero.Is there some way to check whether <T> is Nullable(Of [Enum])? Or some way to write a method which allows Integers to be cast to Nullable(Of [Enum])?I feel like I'm forgetting something that would allow me to write one of the other of these, but my weak google-fu is turning up nothing.
EDIT: Okay, thanks to dasblinkenlight's answer below, I can detect when this circumstance is occurring, but what I need to do now is to take a type <T> which I know is Nullable(Of SomeClass), get a type reference to SomeClass and then create a new object of type Nullable(Of SomeClass) and assign that to LoadData.My problem was that I had a lot of difficulty in finding any function which would accept baseType as an actual Type.Parse accepted baseType as a parameter, I knew baseType was an [Enum] type because of dasblinkenlight's code, so I was, in this instance, able to code a solution. It's a solution which is very specific to my problem (i.e., T is Nullable(of SomeEnumeration)), but it's a solution nonetheless.
How To Get Mouse Cursor Type
Dec 4, 2009I want to know to get windows mouse cursor type(shape) using vb.net.
I have not ask within the form. I want to get even the form is minimized.
Can't Type In A Textbox That Shows Cursor
Jan 15, 2010I am having some bizarre issues with getting focus on the child objects of some user controls that I am developing.The base control, DatePanel, consist of three radio buttons, a textbox, a combobox, and a datetimepicker.Depending on which radio button is selected depends on which of the other controls are visible.The default state of the control has the textbox and combobox visible.When I test the control in the VS test container, I click in the textbox, the cursor appears but I cannot type, if I click in the textbox again then I can type.I have tested enough to figure out that if I click on any other control and then click on the textbox I can type.I have tried adding a gotfocus event for the user control to both Focus and Select the textbox and neither does anything.This user control is on several other user controls that are in development because I didn't catch the behave at the beginning.To make things a little stranger in one of the other controls, I found that if I set the tabindex of DatePanel A to 0 then I was able to type in the textbox after selecting it the first time, however if instead I click in the textbox of DatePanel B the cursor appears in that textbox but when I type the text appears in the textbox in DatePanel.
In terms of code on the DatePanel there are 6 properties and 3 events.The 6 properties return values of the fields on the DatePanel and the three events are for watching the state of the radio buttons.Other than that I did try adding the GotFocus event to no avail.I can provide any code that is needed but between myself and my colleagues we couldn't see anything that would have any influence over the control focus.
Error15Operator '=' Is Not Defined For Types 'System.Type' And 'System.Type'
Feb 6, 2012I have tried several ways but can not make this work. We are using .NET 2.0
vb
If DataGridView1.Columns(e.ColumnIndex).ValueType = GetType(String) Then
'this did not work either:
ElseIf DataGridView1.Columns(e.ColumnIndex).ValueType = GetType(DateTime)
[code]....
Quote:
Error15Operator '=' is not defined for types 'System.Type' and 'System.Type'.
Asp.net - Declare Return Type Of The Function When There Are Two Possible Returned Types
Jan 25, 2010I have the following statement, I want to turn it into a Public Shared Function :
If isEmployee Then
Dim employeeInstance As New Employee
employeeInstance = GetEmployeeInstanceByUserId(userId)
[Code]....
Public Shared Function GetWorkerInstance(Byval isEmployee as Boolean) As ...(not sure what to write here)...
There two possible return Type. I'm not sure what I should declare for the function return type.
How To Match Generic Types, Without The Type Parameter In A IF-ELSE Statement
Jan 23, 2009I have bee trying to figure out, how to match generic types, without the type parameter in a IF-ELSE statement - heres what i mean:
<P>IF TypeOf(Obj) Is GenericTypeExample(Of ???Any???) Then</P>
<P>End if</P>
Operator '&' Is Not Defined For Types 'System.Type' And String'
Jan 14, 2010I am trying to concate string and system.type using operator & in VB and i am getting error :
[Code]...
[Custom Types] Display Value In State Of Data Type Name?
Oct 15, 2009In visual studio (VB environment), for exemple, with point structure, while debbuging, in state of displaying {system.drawing.point} at the object value, its display the X and Y value.For exemple :
Dim pt as new point(8,9)
A spy on pt will show "{X = 8 Y = 9}"So i want :
Dim cust1 as cust_type1
to display me something differente than "{namespace.cust_type1}"
.net - Deserializing XML With Dynamic Types / Converting String To System.Type?
Jun 5, 2009I'm not sure if i titled this question properly or am asking it properly, but here goes.I've got serialized objects (in XML) stored in a database, along with a string/varchar indicating the type.
[Code]...
Adding Different Types Of Colums To A DataGridView When The Type Starts As A String
Mar 24, 2011I have an Array of Column Titles and Column tpyes that i want to add to my DataGridView but dont
know how to 'Cast the string' to the required Column type?
Example (doesnt work but might give you an idea what i an after:[code...]
Adding Different Types Of Colums To A DataGridView When The Type Starts As A String?
Nov 25, 2011Adding different types of Colums to a DataGridView when the type starts as a string
View 1 RepliesMake Cursor To Jump To Next Order Tab Textbox When I Type Number?
Jan 13, 2010I dont want to use tab or enter and i want tha cursor to jumb to the next tab order textbox when i type a number
View 4 RepliesC# - Avoid Type Name Conflicts With Types Or Names In The User-provided Code?
Feb 6, 2011I am writing a code-generator that will need to output some miniscule portions of VB.NET code, and since this is a code generator that will add user-provider code, I'd like to try to avoid type name conflicts with types or names in the user-provided code.
In C#, I can prefix types with global:: to make sure they're matched from the global type namespace hierarchy, rather than some local name, but is there a similar system for VB.NET? ie. this: global::System.String
Asp.net - Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types?
Oct 6, 2011I get the error
Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
in the following code..
Public Sub selCurrentManuf_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles selCurrentManuf.SelectedIndexChanged
End Sub
The drop list to go with it is the following...
<asp:DropDownList
OnSelectedIndexChanged="selCurrentManuf_SelectedIndexChanged"
selectedvalue='<%#Container.DataItem("c1_manufidcurrent")%>'
[code]....
Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types?
Aug 23, 2009I created a lable to handle DateTime = Now, It works fine. but when I moved it inside a FormView I Get the following Message. Handles clause requires a WithEvents variable defined in the containing type or one of its base types?
View 5 RepliesError - Error2Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types
Oct 19, 2010Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Click, Open.Click,Name.Click
SelectVid.ShowDialog()
End Sub
[code]....
I keep getting this error:
Error1'.' expected.
Error2Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
Error 2 is also error 3
Error - Handles Clause Requires A With Events Variable Defined In The Containing Type Or One Of Its Base Types
Dec 8, 2011I am auto generating data grid and I am using check box in Data grid View,Now i am invoking check box state changed event but it produces the following error Handles clause requires a With Events variable defined in the containing type or one of its base types.
Here the code
Private Sub PRNT_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PRNT.CheckedChanged
Some Stuff.
End Sub
Error : Handles Clause Requires A WithEvents Variable Defined In The Containing Type Of One Of Its Base Types
Mar 25, 2010I am in the processing of moving an app from VB to C# but some of the classes I will just be moving to VB dlls to access from the main C# app. In doing this I am trying to get the VB dlls to utilize the main C# class lib. In this C# lib I have an abstract clase called base process, it sets up a background worker and handles all the progress tracking, errors, and even reports an ETA. To use this in a derived class in C# you would just do this...
public class SomeLongProcess : Common.Multithreading.BaseProcess
{
public void start()
[code]....
The problem is that if I do the equivelant in VB I get an error "Handles clause requires a WithEvents variable defined in the containing type of one of its base types". Well I can't do a WithEvents in the base class because it is C# so..
VS 2010 : Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types
Aug 26, 2011I am trying to follow this thread
[URL]
and I have it pretty close but have one error.
Quote:Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
That error is on both of these, in blue
Private Sub SpellChecker1_DeletedWord(ByVal sender As Object, ByVal e As NetSpell.SpellChecker.SpellingEventArgs) Handles SpellChecker1.DeletedWord
'save existing selecting
[code]....
I have added the reference, I have also added them to the toolbox. My dictionary is all set. What did I miss?
Error - Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types.D:Shipping
Nov 22, 2011i am getting errors on last two event handlers. what did i do wrong?
Error - Handles clause requires a WithEvents variable defined in the containing type or one of its base types.D:Shipping ApplicationShipping ApplicationForm1.vb75136Shipping Application
Error - 'PrintDocument1' is not declared. It may be inaccessible due to its protection level.D:Shipping ApplicationShipping ApplicationForm1.vb1119Shipping Application
[code]....
VS 2008 Button_Click Error:Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types
May 11, 2009Just upgraded a VS 2005 ASP.NET 2.0 website to VS 2008 ASP.NET 3.5. There was an error on the Sub Button_Click. It seemed to be a minor error, the website and the button worked just fine, as usual. What does the error mean?
Protected Sub btnDEreports_Click(ByVal
sender As
[code]...
Error 20 Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
C# :: Determining Object Equivalence For Value Types, Reference Types And ILists?
Nov 1, 2009I have a class with a Property called 'Value' which is of type Object.Value can be of any type, a structure, a class, an array, IList etc.My problem is with the setter and determining whether the value has changed or not.This is simple enough for value types, but reference types and lists present a problem.For a class, would you assume that the Equals method has been implemented correctly, or just assume that the value has changed every time the setter is called?If I did assume it's changed, then perhaps I should assume it for value types as well, so that the behaviour is consistent.
View 2 RepliesReplace Default Windows Cursor With A Custom Cursor (winforms)?
Feb 16, 2011This VS010 solution is not providing my intended outcome as a custom override of a 'crosshair' or 'reticle' cursor e.Graphics.DrawPath() is the function that isn't working. This
WORKING solution demonstrates how it's supposed to work. The additonal PictureBox added to a Panel is, for reasons I don't understand, not allowing the 'new' cursor to appear.
Option Explicit On
Option Strict On
Imports System.Drawing
[Code]....
VB Silverlight For Windows Phone "Handles Clause Requires A WithEvents Variable Defined In The Containing Type Or One Of Its Base Types"
May 16, 2012when i am selecting form the xaml file a button and then tap event from the right (in order to set the tap event) it auto generates this sub :
[Code]....
Cursor - User Control - Able To Update Its Cursor While It Is Disabled
Apr 28, 2009I have a user control, and want to be able to update its cursor while it is disabled. For example, say that I have a user control whose cursor is Default. The below code works ONLY when the user control is already enabled; if it is disabled the below code doesn't work and the cursor remains Default: Me.MY_USER_CONTROL.Cursor = System.Windows.Forms.Cursors.WaitCursor
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