Is Shared ReadOnly Lazyloaded
Feb 11, 2011I was wondering when I write
Shared ReadOnly Variable As DataType = New DataType()
Or alternatively
Shared ReadOnly Variable As New DataType()
[code].....
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.net - Setting ReadOnly Property In PropertyGrid Sets All Properties Readonly?
Jun 12, 2012I am using a PropertyGrid control to edit my class properties and I am trying to set certain properties read-only depending on other property settings.This is the code of my class:
Imports System.ComponentModel
Imports System.Reflection
Public Class PropertyClass[code].....
This is the code I am using to edit the values:
Dim c As New PropertyClass
PropertyGrid1.SelectedObject = c
The problem is that when I set SomeProperty to True, nothing happens and when I then set it to False again it sets all properties Read-Only.
.net - Why Can't Call Private Shared Methods From A Public Shared Method
Aug 25, 2011I have a class like this:
[Code]...
It works, when I make getBar methods public, but I don't want to expose these unneccessarily. Why I can't call private shared methods from a public one in the same class is over my head. I'm using .net framework 4.0 in a web application.
Asp.net - Public Shared Variable Shared Between Users?
Mar 30, 2012I've taken over the maintenance of the website (ASP.NET VB) and on one particular page I noticed the below code
Inherits System.Web.UI.Page
Public Shared UserNumber As String
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
[Code]....
My question is whether the variable UserNumber can be accessed or changed by any other user than the current one?
Shared Method Not Calling Shared Constructor
Aug 12, 2009Given in the following language specification, for me at least, calling Db.Foobar() [In the following code] does not indeed call off to the Shared Constructors of the base classes. I am curious as to a) is this my own fault for doing something wrong or b) is this an error in the language specification[code]...
View 2 RepliesCreate A "shared" Variable That Is Shared With All Instances Of A Class?
Jan 14, 2011I seem to be drawing a blank. I'd like to create a "shared" variable that is shared with all instances of a class but not classes that inherit from it. For example.Class A: Shared list As New List(Of String): list.Add("A")
Class B Inherits A: list.Add("B")Class C Inherits B: list.Add("C")The end result I'd like is that any instance of A has just A in the list. Any instance of B has A and B in the list. Any instance of C has A, B, and C in the list. I can accomplish it by creating Instance variables, but I have to construct the list for each instance of a class. I'd like to construct it once for a specific point in the Hierarchy and then share it accross other instances of that class.
Use Derived Class Shared Variables In Shared Methods Of Base Class?
Jun 4, 2010I am trying to add shared members in derived classes and use that values in base classes...
I have base
class DBLayer
public shared function GetDetail(byval UIN as integer)
dim StrSql = string.format("select * from {0} where uin = {1}", tablename, uin)
end function
end class
[Code]..
currently there is error using the tablename variable of derived class in base class but i want to use it i dun know other techniques if other solutions are better then u can post it or u can say how can i make it work? confused...
Set A Row READONLY?
Oct 25, 2010I am trying to set the an entire row readonly if one of the fields is set to true. I have a checkbox on column 6 which is either ticked or not. Therefore, if the checkbox is ticked i.e., set to TRUE then the entire row should be READONLY.
Dim irowDatePaid As Integer
For irowDatePaid = 0 To DgvReturns.Rows.Count - 1
If GetBool((Me.DgvReturns.Rows(irowDatePaid).Cells(7).Value) = True Then
[code].....
The row is set to readonly fine. However, in 3 columns I have checkboxes which are not set to readonly. Is it possible to set enable = false for these checkboxes..
How To Get Value In A Textbox That Is Readonly
May 2, 2009I have a textbox.In its onclick iam calling a javascript fn to call calendar.Texbox is readonly. Clicking on textbox calendar is coming and value is showing in textbox. But on clicking submit button where I have written code to save, there i am not getting value in textbox. What may be the reason for that?
View 4 RepliesName A Property 'ReadOnly'?
Oct 20, 2009I have a user control and I'd like to give it a custom property named ReadOnly. I get "Keyword is not valid as an identifier", as it thinks I'm writing a ReadOnly Property named something.
so really I can call mine 'Read_Only', but I'm just curious if there's an easy way to get the other name in there, since then my control will be similar to the visual controls that have ReadOnly in the designer.
No Readonly In ComboBox?
Jul 20, 2011What ever happened to the readonly method in the ComboBox? So i thought if MS did not have that option let me code around it. So i made a code here that checks if the user inputs something else then what i want him to input.If it something else is found it returns the text back to "Hours(s)"
View 2 RepliesReadonly ComboBox
Mar 6, 2010How do I make it to where you cannot type into a combobox, but you can choose items through the drop down? I tried Readonly, but it makes it so you can't type AND can't drop down select.
View 1 RepliesReadonly Whole Datagrid Except Last Row
Jul 16, 2009I know do readonly column, row.But i want after i click add button. whole datagridview is readonly but except last row enables for user inputing data.
View 6 RepliesDifference Between Shared Events And Non-shared Events?
Dec 16, 2009is there a difference between shared events and non-shared events?
Private Shared Event EVENT_something_changed()
Private Sub SUB_handles_something_changed() Handles Me.EVENT_something_changed
End Sub
no errors with this code, but how is Me possible since the Event is shared. it seems like there's no errors between switching shared with un-shared and switching Me with Myclass, all 4 combinations seem to work, isn't that weird
.net - Backcolor Of Readonly Richtextbox?
Sep 23, 2010I have a winforms app with a series of textboxes and one rich textbox. Upon a button click I would like to set all the fields to being readonly. The only issue with this is that the background color of a readonly richtextbox is white as opposed to the grey used by the textboxes.
I have tried setting the backcolor property of the richtextbox to being Color.LightGrey but this is not the same grey used by the textboxes. I have also tried setting the back color to being the backcolor of one of the readonly textboxes but this does not work either. what is the best way to get a readonly rich text box that looks like a readonly text box?
.net Automatic Property - Readonly?
Jan 31, 2011is it possible (and how) to make a readonly automatic property in VB 2010?
Public Class Foo
Public Property Value As Integer
Public Sub New()
[code]....
problem is that users can write to the property.
C# - Possible To Assign ReadOnly Property
Mar 9, 2012It seems that VB.NET and C# readonly keyword have some differences... Say, a ReadOnly property in C# can be assigned in some conditions, but in VB.NET - never?
View 2 RepliesCannot Update The Database Because Is Readonly?
Jan 24, 2011I had created a simple program that uses a MDF file as Database, this includes in the project 2 files: mgcdb.mdf and mgcdb_log.ldf, the program installs in C:Program Files(x86)CompanyNameProgramName, then when I try to update the database I get an error "Failed to update database because is read-only".
During testing on VB I had no problems, since the database was being use by "Authenticated Users group", but on Deployment the Users group don't have enough access to work with these files. So far I know or at least I think that what I need to do is to ADD access to the user, right? Since I didn't know how to do this I found this address [URL].. where it shows you an example on how to add/remove access to a file. I changed the module to this:
[Code]...
Datagridview Readonly Not Working?
Oct 30, 2009I have a form with a button and a tabcontrol that has 2 tabs, on each tab I have 1 datagridview in them
both datagridviews are bound in the load event to a different bindingsource each.
When I click the button I fill the datatables programatically, and set some cells and columns on the datagridview to readonly.
The columns are set to readonly on both grids, but the cells are not. Only the cells in the first datagridview are being set to readonly and the cell on the second grid are not.
Further info:
If before clicking the button i switch to the second tabpage on the tabcontrol, and click the second grid on a column, and then go back to the first tabpage, the readonly cells are set fine when I click the button
If I press the button a second time, the readonly cells are set on both grids are set fine.
It seems to me that this error is presented on non-active (in lack of a better name) datagridviews.
I have tried, to call update, refresh, focus, endedit, etc etc on the click event of the button for the second grid but nothing seems to make it work.
Equivalent Of The C# Readonly Keyword?
Mar 3, 2009In C# you can do this to make your member variable immutable: public readonly int y = 5; What is the equivalent "readonly" keyword in VB.NET?
View 1 RepliesError1Property 'Transaction' Is 'ReadOnly'
Oct 8, 2011I am using visual studio 2008. and i put dataset to use report wizard. but, when i compiled it, i got this errors.
Error1Property 'Transaction' is 'ReadOnly'.C:\Documents and Settings\mahalia\Desktop\NewProject\NewProject\DataSet2.Designer.vb292321NewProject
Error6'OracleDbTypeEx' is not a member of 'Oracle.DataAccess.Client.OracleParameter'.C:\Documents and Settings\mahalia\Desktop\NewProject\NewProject\DataSet2.Designer.vb299113NewProject
--- and when i locate it, i saw it in dataset.designer.vb.
Executable File Is Always Readonly
Aug 20, 2009I develop my application with VBNET2008 express and SQL server express 2005 but a little problem appears,my executable file is always READONLY.However,I make modifications in my code file,it stills unchangeable in the Executable File How can i do for this?
View 6 RepliesHow To Invoke ReadOnly Property
Nov 16, 2011How would one invoke a readonly property?
ListView1.SelectedIndices.Count
Make Non-TextBoxes Appear ReadOnly?
Mar 23, 2011Is there any way of making controls that aren't textboxes into readonly controls? Specifically I have a date time picker (but I have the problem occasionally with other controls), that I want to make ReadOnly as opposed to disabled so that the user can see clearly what is in the control but cannot edit it. Making a control like this disabled makes it hard to read and furthermore, gives the impression to the user that they are to ignore the field, which defeats the object.
I'm sure a suggestion will also be to stick the information into a text box, however there are other date time picker controls that CAN be edited in the same window, and it would make life a lot easier if the layout of each was exactly the same.
Property 'Chars' Is 'ReadOnly'?
Jul 10, 2009THis is a line of code i have, it's a code to go at the bottom of a document and the title of the question is the error it has, how do i change the 'Chars' to not be read only? I can only guess 'Chars' is a character.
pagecode(1) ="01274-6759q-DDD"
If you're not living on the edge, you're taking up too much room
Set DataRows In DataTable ReadOnly?
Mar 2, 2012how to make DataRows in a DataTable ReadOnly? You can set DataColumns ReadOnly, but not DataRows?
I'd like to bind a DataRow ReadOnly property to my DataGridViewRow ReadOnly property. So when my DataGridView displays the underlying DataTable, if the DataRow is ReadOnly then the DataGridViewRow would automatically be ReadOnly as well. how to do this other than the way I do it below?
For Each r As DataGridViewRow In Me.dgvCurrent.Rows
If r.Cells("curAnalyteID").Value <> Me.cbxAnalyte.SelectedValue Then
Me.dgvCurrent.Rows(r.Index).ReadOnly = True
[Code]....
Set READONLY Property And Set Value To $.00 In Datagridview
Jun 11, 2011i have this code to build datagridview column. I will fill this coulmn with the data from another column (I have done it) But now, I want it so that the table property READONLY: TRUE and the column TOTAL_PRICE to have $#.00 format.
Public Class columnLoader
Public Sub New(ByVal system As String, ByVal quantity As Integer, ByVal description As String, ByVal totalPrice As Double)
[Code].....
VS 2008 No Readonly In ComboBox?
Aug 23, 2010What ever happened to the readonly method in the ComboBox? So i thought if MS did not have that option let me code around it. So i made a code herethat checks if the user inputs something else then what i want him to input.If it something else is found it returns the text back to "Hours(s)"But why do i get this error?
View 4 RepliesWhat's The Equivalent Of VB ReadOnly Property In C#
Jun 12, 2012If I have VB declaration like this Public ReadOnly Property Document() As XmlDocument, what is its C# equivalent?
View 1 Replies.net - Use Readonly Property Across Multiple Classes?
Jun 7, 2011I have created a read-only property(name) in class1. How can I use this name property in class2?
Public Class Class1
ReadOnly Property name() As String
Get[code].....
Can I directly carry this name variable value into class2?