Hi
Why does property default value not work?
When i start my application and dont set value from properties window
the value is always "nothing". Whats the point off DefualtValue then?
Regards;
Meelis
Private const cSaveText as string = "Save"
Private const cButtons as string = "Buttons"
<Description("S ave button text"), Category(cButto ns),
DefaultValue(cS aveText)> _
Public Property SaveButtonText( ) As String
Get
Return MySaveButtonTex t
End Get
Set(ByVal value As String)
MySaveButtonTex t = value
cmbSave.Text = value
End Set
End Property 6 1908
Hi,
You need to initialize the variable "MySaveButtonTe xt" as well, since
that is what you are *returning* in the Getter. For string variables, I
believe this is necessary.
Try adding the following line along with the Constant declarations :
---------------------------------------------------------
Private mySaveButtonTex t As String = cSaveText
---------------------------------------------------------
Hope this helps,
Regards,
Cerebrus.
HI
Yes i allready have this (Private mySaveButtonTex t As String = cSaveText)
but this does not help.
If propertyvalue is not specified from property window, value is still
nothing.
Meelis
"Cerebrus" <zo*****@sify.c om> wrote in message
news:11******** **************@ t31g2000cwb.goo glegroups.com.. . Hi,
You need to initialize the variable "MySaveButtonTe xt" as well, since that is what you are *returning* in the Getter. For string variables, I believe this is necessary.
Try adding the following line along with the Constant declarations : --------------------------------------------------------- Private mySaveButtonTex t As String = cSaveText ---------------------------------------------------------
Hope this helps,
Regards,
Cerebrus.
That *is* surprising, since it worked for me, when I copied and pasted
your code. Are you sure, the value is not getting changed elsewhere ?
Regards,
Cerebrus.
Hello Meelis,
You should set the initial values in the constructor of your class.
The DefaultValue attribute is used by Visual Studio in the properties window: When you right click the property you will see a Reset item in the menu. It will reset the value to the one assigned in the DefaultValue attribute.
Regards.
"Meelis Lilbok" <me***********@ deltmar.ee> escribió en el mensaje news:e9******** ******@TK2MSFTN GP09.phx.gbl...
| Hi
|
| Why does property default value not work?
| When i start my application and dont set value from properties window
| the value is always "nothing". Whats the point off DefualtValue then?
|
| Regards;
| Meelis
|
|
| Private const cSaveText as string = "Save"
| Private const cButtons as string = "Buttons"
|
| <Description("S ave button text"), Category(cButto ns),
| DefaultValue(cS aveText)> _
| Public Property SaveButtonText( ) As String
| Get
| Return MySaveButtonTex t
| End Get
| Set(ByVal value As String)
| MySaveButtonTex t = value
| cmbSave.Text = value
| End Set
| End Property
Hi and thnx José
But what when i want to change property in design mode and when no value is
entered for property
then defualtvalue is omitted automatically?
Regards;
Meelis
"José Manuel Agüero" <chema012 en hotmail.com> wrote in message
news:u$******** ******@TK2MSFTN GP11.phx.gbl...
Hello Meelis,
You should set the initial values in the constructor of your class.
The DefaultValue attribute is used by Visual Studio in the properties
window: When you right click the property you will see a Reset item in the
menu. It will reset the value to the one assigned in the DefaultValue
attribute.
Regards.
"Meelis Lilbok" <me***********@ deltmar.ee> escribió en el mensaje
news:e9******** ******@TK2MSFTN GP09.phx.gbl...
| Hi
|
| Why does property default value not work?
| When i start my application and dont set value from properties window
| the value is always "nothing". Whats the point off DefualtValue then?
|
| Regards;
| Meelis
|
|
| Private const cSaveText as string = "Save"
| Private const cButtons as string = "Buttons"
|
| <Description("S ave button text"), Category(cButto ns),
| DefaultValue(cS aveText)> _
| Public Property SaveButtonText( ) As String
| Get
| Return MySaveButtonTex t
| End Get
| Set(ByVal value As String)
| MySaveButtonTex t = value
| cmbSave.Text = value
| End Set
| End Property
You can validate the input in the property set method of your component. It can ignore the wrong (or empty) value or throw an exception. In the latter case Visual Studio will show a message saying that the property value was invalid.
Regards.
"Meelis Lilbok" <me***********@ deltmar.ee> escribió en el mensaje news:e$******** ******@tk2msftn gp13.phx.gbl...
| Hi and thnx José
|
| But what when i want to change property in design mode and when no value is
| entered for property
| then defualtvalue is omitted automatically?
|
|
| Regards;
| Meelis
|
|
|
|
| "José Manuel Agüero" <chema012 en hotmail.com> wrote in message
| news:u$******** ******@TK2MSFTN GP11.phx.gbl...
| Hello Meelis,
|
| You should set the initial values in the constructor of your class.
| The DefaultValue attribute is used by Visual Studio in the properties
| window: When you right click the property you will see a Reset item in the
| menu. It will reset the value to the one assigned in the DefaultValue
| attribute.
|
| Regards.
|
|
| "Meelis Lilbok" <me***********@ deltmar.ee> escribió en el mensaje
| news:e9******** ******@TK2MSFTN GP09.phx.gbl...
|| Hi
||
|| Why does property default value not work?
|| When i start my application and dont set value from properties window
|| the value is always "nothing". Whats the point off DefualtValue then?
||
|| Regards;
|| Meelis
||
||
|| Private const cSaveText as string = "Save"
|| Private const cButtons as string = "Buttons"
||
|| <Description("S ave button text"), Category(cButto ns),
|| DefaultValue(cS aveText)> _
|| Public Property SaveButtonText( ) As String
|| Get
|| Return MySaveButtonTex t
|| End Get
|| Set(ByVal value As String)
|| MySaveButtonTex t = value
|| cmbSave.Text = value
|| End Set
|| End Property This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: timtos |
last post by:
I want to set a color property of a user control by default.
I am doing it like this:
....
DefaultValue(typeof(System.Drawing.Color), "Blue"),
....
The compiler likes it but my program ignores it!
I´ve also tried other things like:
|
by: Joe |
last post by:
I wrote a simple server control that inherits from the DropDownList
control. I will be using the control in an aspx page and want to
access it in a repeater. I have created a public property called
DefaultValue. For some reason, the property is never set from within
my aspx page. It just gets ignored. Does anyone know why?
Here is how it looks in my aspx:
--------------------------------------------------------
...
|
by: Joe |
last post by:
I am having a hard time with setting a property on a custom server
control that i am placing in a repeater. The control inherits from
DropDownList. The property is being set in the repeater using the
DataBinder.Eval method. I can write that value out to the screen,
however, it is not available to the control. I think it is a problem
with the databinding of the repeater making data available to the
custom control too late.
Below is a...
|
by: Lance |
last post by:
I want to be able to reset a complex property in a PropertyGrid. I know that for properties that are ValueTypes you can include System.ComponentModel.DefaultValue in the declaration of the property. But, for complex property types (e.g., instance types) this does not work because System.ComponentModel.DefaultValue requires a constant value
In order to indicate if a property should be serialized you can include a boolean function named...
|
by: Just Me |
last post by:
I made a Usercontrol that must have AutoScroll set to true when it is used.
So I set it to True in the Load event.
However the property still shows in the properties window when the control
is placed on a form.
That's confusing.
How can I make that property not show in the properties window?
| |
by: Shadow Lynx |
last post by:
Language: VB.Net 2.0 (Windows Application)
IDE: MS VB 2005 Exp. Ed.
Summary: Setting a DefaultValue of type Decimal for the Property of a
UserControl does not work properly - the value appears Bold in the
Property Editor and attempting to Reset the Property fails with an
error (see below.)
Steps to recreate this issue...
Create a UserControl with the following code:
|
by: Jordi Rico |
last post by:
Hi, I've made the next inherited class in Visual Studio 2005:
Public Class LabelEx
Inherits System.Windows.Forms.Label
Sub New()
MyBase.New()
Me.ForeColor = Color.Black
Me.AutoSize = False
Me.Height = 16
|
by: Eric |
last post by:
Hi Everyone,
I'm writing a UserControl that exposes a property of the type
System.Drawing.Image, like this:
Public Property DefaultImage() As Image
Get
Return propDefaultImage
End Get
Set(ByVal Value As Image)
|
by: Andrus |
last post by:
I'm implementing entity object which should populate its properties from
database when property is first referenced.
In RDL reports I use object properties like
MyObject.MyProperty
MyObject is instance of MyEntity class. There is no MyProperty property in
MyObject at design time.
|
by: Johnny Jörgensen |
last post by:
Does anybody know how to correctly specify the defaultvalue attribute for a
property whose type is an enum.
Example:
Public Enum TestValues
Value1=1
Value2=2
End Enum
|
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: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
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: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
| |
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: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |