Textbox - Use The Right Alignment Property Or The RighttoLeft Property Of A Text Box?

Nov 18, 2009

I want to type the characters from right to left (to behave as a right alignment). But I am not supposed to use the Right Alignment property or the RighttoLeft property of a text box.For example, I want to enter the characters of a string from right and each character should shift one space left so that the user can enter another character after that.


Word 2007 Vba - Set The Vertical Alignment Property For A Text Box?

Aug 16, 2010

How do I set the vertical alinement property for a texted box.

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Bind A Dataview.count Property To A Textbox.text Property?

Aug 3, 2010

I have a dataview an i would like to show the count property in a text box.

i tryied the following

me.textbox1.DataBindings.add(new DataBindind("Text",DataView,"Count"))

But i have a exception.

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Textbox Does Not Take .text Property?

Jun 13, 2010

I have Visual basic 2008 express and I have the next code:


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.net - 'Property' Cannot Implement 'Property' Because There Is No Matching Property On Interface 'IName'?

Dec 9, 2011

I'm having some very weird issues with interfaces right now.

I have a very simple setup. In one of my class, I have a Property implementing a Property from an Interface.

In my class it's like:

Private _oForm As IForm
Public Property Form As IForm Implements IContainer.Form
Set(value As IForm)


I have like dozens of interfaces like this working throughout my project and I can't believe this simple one can't work!

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Textbox.Text Property Not Updating?

Apr 19, 2010

I have a windows form which contains a textbox.I have a loop in my code doing some farly intensive work. In the middle of the loop I want to update my text box.text property on the form to let my users see some simple progress.

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Can't Clear Textbox Text Property When It Contains A Numerical Value

Oct 6, 2011

I'm trying to write a Database manager in VB (2010) that updates a SQL database that compiles and summarizes my financial records. The code works, but I'm having issues with one exception that I think I understand, but can't circumvent. I've built an I/O form that enters a series of purchases and sales into a temporary datatable. After review of the list, the program connects to the database and executes the SQL. That all works and isn't a problem.


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VS 2010 Override Text Property In Textbox?

Aug 9, 2011

I just start working with VB. In a programme I need to keep the value in text property after programme closed.That is why I want to change (override) Text property in TextBox.Then this value will be default value when I open the programme again.I will assing a value to textbox1 in a Sub.

Sub button1_click
End Sub

Then I need to change the Text value under "Properties" window.TextBox1 System.Windows.Forms.TextBox

I think there is Get-Set method for property override but I dont know how to use.How can I do that?

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Change .Text Property Of TextBoxes In An Array Of TextBox

Jun 19, 2012

I have an array of textboxes. Lets say this one:[code]What i want to do is set the .Text property for each of the textboxes of the array.I have tried this: [code]

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How To Change TextBox Text Property On A UserControl From The Other Loaded One

Nov 30, 2011

I have two UserControls already loaded how to change TextBox text property on a UserControl from the other loaded one.

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Textbox Text Property Won't Update Programmatically After First Time Running Through A Method (but Will Thereafter)?

Jul 28, 2009

This is my first post on this forum, so please excuse me if I'm posting wrong. Anyway, I've been having an issue that I've never seen before and is driving me nut, I have a windows form on which I have placed many textboxes that display information from a MS SQL database. The user can then change these values and hit a "save" button which writes the changes to the database. I also have certain textboxes that with the "on leave" event (after a user enters a possible new value) trigger a method that recalculates some of the other fields based on the new information. Hopefully that all makes sense.

So the problem is, when I run through this "recalc" method the first time around, it doesn't update those textboxes that it's supposed to. However, when I put a breakpoint in and debug through it, the debugger shows it putting in the correct values into the textboxes. It's just as soon as the method is done, it puts them back to blank, or whatever they were before

'Rebind stuff here
lblCabinets.Text = curMfg.ToString("c")
txtCabinets.Text = curMfg.ToString("c")


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.net - If An Interface Defines A ReadOnly Property, How Can An Implementer Provide The Setter To This Property

Jun 10, 2011

Is there a way for implementers of an interface where a ReadOnly property is defined to make it a complete Read/Write Property ?

Imagine I define an interface to provide a ReadOnly Property (i.e., just a getter for a given value) :

Interface SomeInterface
'the interface only say that implementers must provide a value for reading
ReadOnly Property PublicProperty As String
End Interface

This means implementers must commit to providing a value. But I would like a given implementer to also allow setting that value. In my head, this would mean providing the Property's setter as part of the implementation, doing something like this :

Public Property PublicProperty As String Implements SomeInterface.PublicProperty
Return _myProperty


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Reflection - Find From A Property Info Object If That Property Has A Non Public (Private / Protected) Setter?

Aug 27, 2009

I searched on the forum / Internet for the solution how a PropetryInfo object (of a Public property) can reveal if it has a Private Protected Setter ... it was all in vain .... all help I found was about how to "Set" value of a public property having a Private Setter.I would like to know if I have a PropertyInfo object of a public property, how would I know if its Setter is Non Public?

I tried, in a exception handling block, where I did a GetValue of the PropertyInfo object and then called SetValue by setting the same value back... but to my surprise it worked well and didn error out.


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Error - In Order To Evaluate An Indexed Property, The Property Must Be Qualified And The Arguments Must Be Explicitly Supplied By The User

Jun 20, 2012

I'm having a few problems converting some code into VB.NET from C#. Most of the translating is done, but I am getting errors when I try to run my code, and I can't figure out what is causing them. Here is the Sub I translated.

Public Sub CreateWidget()
Dim blue As LCDColor
blue.Red = 0
blue.Green = 0


The error I receive on this line ("vision.Widgets.CreateWidget(wg1)") reads "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user."

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Runtime Error '-2147418113 (8000ffff)':Could Not Get The CurLine Property. Unexpected Call To Method Or Property Access

Sep 24, 2009

start with I was given a program by a friend that was created in Excel 2003 with the help of Visual Basic Editor. He said he used Visual Basic 2003, which he is not 100% sure about. Anyways he used CurLine in the program and when I try to open it in Excel 2007 and then open the Visual Basic Editor and run the program I get the following error:Run-time error '-2147418113 (8000ffff)':Could not get the CurLine property. Unexpected call to method or property access.

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.net - Make A Class Property Behave Like The Checked Property On RadioButton?

Jun 1, 2012

I have a very simple class that holds a few public properties - ID, Text, Colour, etc. and a Boolean called 'SelectedItem'. Just like the Checked property on RadioButtons, only one item can have its SelectedItem property set to True within a particular group. Note: there will be several separate groups (lists), each allowed to have only one item with SelectedItem = True.

My first thought was that I would probably just have to handle everything outside of the class, setting SelectedItem to False for every other item in a particular list when another item was selected. But that seems rather inelegant to me. So I've been trying to think of how this might be done within the class. For example: could I perhaps have a private string property called say "GroupName" - set in the New sub when adding a new instance of the class - and then use a private shared method to set every item's SelectedItem property to False, provided the item has the same GroupName as the newly selected item? I would have a go at doing this but I have no idea how to enumerate every instance of a class from within that class, or whether that's even possible. Is it? Or is there another (better) way to achieve my goal? Here is a cut-down version of what I've got so far:

Public Class ResourceItem
Public ID As Integer
Public Text As String[code]....

As can be seen: instead of instantiating a new ResourceItem and passing that as an argument to the manager's Add procedure, I'm simply passing the details of the new item and the procedure is creating the item from those. I don't know whether this is a good or bad idea - please advise - but I've done it because I couldn't figure out how to make the SelectedItem property only writeable by the manager, so I wanted to avoid having directly accessible objects that could have their SelectedItem property set to True without it deselecting all the other items in the same group. Of course that still leaves the possibility of setting a variable to one of the manager's list items and setting it from there, so I would still like to know how I could prevent that, if possible.

UPDATE: I didn't use the code above in the end, deciding instead to go with Cyborgx37's solution - which seems to work perfectly well for me despite the warnings about best practice. I also realised I would need to use the same class in another scenario where multiple items could be selected, so it was easy to add a Boolean property to the manager to enable that.

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Asp.net - Identifier Expected And Property Access Must Assign Property Or Use Its Value Errors

Nov 14, 2011

Using the following code I get Identifier expected and Property access must assign property or use its value errors:

What is wrong with this code?

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C# - Why Is Attached Property Property Changed Event Only Firing One Time

Nov 27, 2010

I have a listbox binded to a list of objects. For each list item I wanted to have a rectangle whose fill color is determined by a few properties of the binded object. So I did the following:

Made sure INotifyPropertyChanged was implemented on my object.Created a class to expose the properties I am interested in as attached properties.Binded the properties of the object to the attached properties of the rectangle Created a style that uses triggers to set the rectangle fill based on attached properties.

This works, but only the first time the property of the object changes. After that, the attached properties do not seem to be receiving notification when the data object's property changes. I have double checked and my data object is raising the INotifyPropertyChanged event.

<Rectangle Style="{StaticResource RecordStateRectangleStyle}"
Width="10" Height="10" Stroke="Black"
local:RecordAttachment.RecordState="{Binding Path=RecordState}"
local:RecordAttachment.IsDeleted="{Binding Path=IsDeleted}" />


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IDE :: VisualStudio Property Toolbox Not Remembering Last Selected Property Item

Sep 1, 2011

I have a weird question and I honestly hope you understand what is happening here: I design my form (using VB.NET) and put on it a few textboxes, comboboxes and a listview. After the design, I want to adjust the TabIndexes for each control on the form. On the right-hand side of the interface is the property box.

I then select the 'TabIndex' property item and enter a number key (for instance 0) for that selected item. I then select the next textbox control and enter the next number (for instance 1) WITHOUT re-selecting the 'TabIndex' property item. As soon as I select the combobox or listview control, the currently selected property item jumps to 'Items' or 'Collections' and does NOT remain on the 'TabIndex' property item. Why is this happening? Everything worked fine and all of a sudden this starts happening. Should I reset the editor settings or how can I resolve this matter?

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VS 2008 - Property Grid - Click On Item Show Its Property

Mar 18, 2009

I have a listbox with several list items added. I want that as user click on an item, I should be able to show its property. This should change for different items. For example (hypothetical) : Listbox has numbers 1 - 10. Now when I select 1 I should be able to set property - Name, Lastname, Colour, Age.

When I select 2 I should be able to set - Age, Hair Colour (clr shows), Weight, Date. When I select 3 then - City (combo box drop down), Country, Age only. This way value changes for diff items. One way is to put them in property grid and show them. Though this looks nice but adding/removing items in that is not easy. You need to have a class that refer that to prop grid. Do I have to code for each classes for all values in listbox or is there an easier way to manage items in property grid. If you think prop grid is not the right tool for such an activity then can you suggest something else.

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VB SQL Incorrect Syntax Near '' - In Order To Evaluate An Indexed Property The Property Must Be Qualified And The Arguments Must Be Explicitly Supplied By The User

Jun 6, 2009

I receive a System.Data.SqlClient.SqlException in the following code: Specifically Incorrect syntax near ' In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. The exception detail in its entirety is shown below the code.


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Databinding An Object Property And Modifying Another Property In Code?

Jan 15, 2010

on a Windows Form, an object myObject is bound to myObjectDataBindingSource like this:myObjectDataBindingSource .DatSource = myObject on the form, i have a check box bound to the property: chkProp1 for example of the object: myObjectDataBindingSource In the code when the checkbox is clicked, I need to go in code and change another text property of the object txtProper2 for example like this:

Private Sub chkProp1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chkProp1.CheckedChanged


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IDE :: Make A Property In A Property Grid A List Box In 2010?

Feb 21, 2011

I have the following property in a property grid in VB.Net 2010.

<Description("Rapid Entry Post Car Wash Settings CarWashOptionPushButtons"), _
Category("Post Car Wash")> _
Public Property CarWashOptionPushButtons() As String


I need to make this property a list box that gets the values from a database table and populates the list box with the values from the table. I have tried numerous things to no avail.

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IDE Stop Filling In The Rest Of A Property When Creating A New Property?

Nov 5, 2011

when I'm creating a new property in Visual Basic .NET in Visual Studio 2010, the rest of the Property (template?) doesn't complete the basic framework of the property in the code editor. It is now treating a statement like:

Public Property Length() As Integer

Instead of completing the property as it used to (code follows), it simply goes to the next line:

Public Property Length() As Integer

What happens now is that, if I type in the 'End Property' code, the name of the property will now be highlighted as an error since it doesn't have a 'Get' or 'Set' portion.However, when I THEN type the 'Get' on the line following the 'Public Property Length() As Integer', then the balance of the property is created in the code automatically.I don't know how this got changed, but would love to change it back.Does anyone know if there's a setting in VS2010 that addresses this, or if it's something with the basic templates that visual studio uses for creating the basic code components?The weird thing is that for everything else, from class declarations, structures, functions and subs, the IDE still creates the balance of the code structure correctly. The only area where it doesn't is for Property declarations.

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Property Access Must Assign To The Property Or Use Its Value Action Of T Delegate?

Sep 20, 2010

This code snippet was converted from the c# snippet on this link A ChildWindow management service for MVVM applications There are two classes in this snippet first is my confirmessage class


Now this works fine in C# , however in vb,net the line where I add the event handler generates the following error on the message.callback property : Property access must assign to the property or use its value I am tearing out my hair on this I have never used the Action of T delegate before so could i be missing something simeple ? I can provide the c# code as well.

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Property Grid - Open A Dialog Box To Edit A Property?

Oct 29, 2009

Property Grid - Open a dialog box to edit a property?

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Simple Property/field - Use The Shorthand Property Instantiation

Mar 3, 2011

So I'm just trying to understand why someone would want to use the shorthand property instantiation

Public Property CarModel As String <-- property

As opposed to

Public CarModel As String <-- variable

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VS 2005 Error: Property Access Must Assign To The Property Or Use Its Value?

Aug 13, 2011

got an ErrorProperty access must assign to the property or use its value.Here i attach the code which have an error.In this program i tried to add data into form . I also create button , textbox. i am using visual studio 2005 and sql 2005. i also have attach the imagece

Private Sub btnregister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnregister.Click
admin1.LoginDataSet.staff(Me.NAMETextBox.Text, Me.TELEPHONEMaskedTextBox.Text,


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Why Cant A Readonly Property Be Overrided With A Read/write Property In .net

Mar 23, 2011

Conceptually it seems like a derived class should be able to override a readonly property with a read write property. Why isn't this possible?


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Assigning An Object Property Using A Variable As The Property Name?

Aug 4, 2009

I want to assign an object property by referencing the property dynamically, with a variable name


dim propName as string
staticObjectName.propName = 'whatever

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Default Browsable Property Value Not Respected In Property Bag

Jan 5, 2009

I believe that the correct way to give a property a default value is to use the Default Attribute on the Property.[code]In the property window, the value that's displayed in a grid's property bag when it's newly dropped onto a form is False, not True. It does recognise that the default value should be True because it shows the value as bolded and then de-bolds it when we manualy set it to true - but it doesn't respect the default as the initial value. Is there any way of getting the property bag to respect the default value?

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Error 83 Property Access Must Assign To The Property Or Use Its Value

Dec 22, 2010

Well in my vb project it has started giving me a really weird error underlining all my msgbox codes for some reason

this is the error  Error 83 Property access must assign to the property or use its value. C:UsersAidanDocumentsVisual Studio 2008ProjectsXeX 360 ModzZ B0XXeX 360 ModzZ B0XForm1.vb 56 17 XeX 360 ModzZ B0X

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Error: Property Access Must Assign To The Property Or Use Its Value

Apr 20, 2010

I have a property in a class as below:

Public MustInherit Class AddOn
Public Delegate Sub UpdateProgress(ByVal fractionComplete As Double)
Private privateProgressUpdate As UpdateProgress
Public Property ProgressUpdate() As UpdateProgress


I am getting the error that "Property access must assign to the property or use its value" in the above code.

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Having A Class Property Dependent On Another Property Opinion?

Aug 13, 2009

I have the following code:

Public Class MyColorsClass
Public Sub New()
'Empty Constructor


However, if the empty constructor was called to instatiate this class then the colortype is not yet set. Therefore, if one accesses the 'IsColorCool' property it will always return 'False'. Now for the sake of this example, I must keep the empty constructor as part of the class.Now I could add some code in the 'IsPropertyCool' to check and see if a ColorType has been defined, and throw an exception if it has not been set, but I don't really want to do that.I also could always move the logic OUT of the property and into a method on the class called 'DefineIfColorIsCool' or something, and make the owness on the caller to make sure the method was called if they want to use the property 'IsColorCool'?

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Property Editor For Custom Property Is Disabled?

Jun 16, 2009

I have a problem with a property on a custom property of a class. Here is the actual code for the inherited form

Public Class Form : Inherits System.Windows.Forms.Form
Private _Active_Application As Custom.Classes.Active_Application = New Custom.Classes.Active_Application
<System.ComponentModel.EditorBrowsable(ComponentModel.EditorBrowsableState.Always)> _
Public Property Active_Application() As Custom.Active_Application


but when i use a separate class to inherit the above class this property ('Active_Application', not Custom.Classes.Active_Applicaton) is disabled.

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Read Property Invokes Property's Set Routine?

Oct 18, 2011

The code below does not alter the value of the TextOut Property in the sc object (an instance of SomeClass).But none-the-less the Set routine for TextOut is invoked.There's no other way that the TextChanged flag could become True.But that's what happens when I run the code under VB2010 Express (the only place I have tried it).

Does anyone think that this is not a bug in the compiler?

I know that the problem is related to, maybe caused by, the fact that the first argument to LookAtTextOut ("whatever") is passed ByRef.But I do not see how passing an argument ByRef should result in calling a Property's Set routine when there is no code in the subroutine which changes the argument.[code]....

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Sum The Properties Of Two Members Of A Collection Without Doing It Property By Property?

Aug 8, 2011

I've reviewed the links that were offered and don't find an answer. Neither has a lot of searching helped, probably because I can't think of a reasonably short way to ask the question. I hope that I've at least found the proper forum and category.

In my VB 2010 code, I've defined a structure that has about 30 elements. I want to sum the properties (they are all singles) of two members of the corresponding collection. I understand that I can do something like:

member1.property1=member2.property1+member 3.property1 for the entire set of properties of member2 and member3 to produce a completely defined member1 What I wonder is whether or not there is a way that uses fewer lines of code - I know that I can't do:member1=member2+member3, for example.

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Usercontrol's Property - Property That Has A PictureBox Datatype

Feb 9, 2011

I have made a usercontrol, it has a property that has a PictureBox datatype. When the usercontrol is dropped on a Form from the toolbox, I want the picturebox property (in the property window) to be showing all the picture boxes (names) that are on the form as a dropdown so I cant select them. How do I do that?

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Validate A Value Passed To The Property Before Setting The Property?

Apr 12, 2011

In on a section of my book about classes and properties. In this example, the author is attempting to show how you can validate a value passed to the property before setting the property. Looks like so far in this book, a couple of things have slipped past the editor, and I think this might be another one...Here's the example:


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Databind A Property To Textbox In Wpf?

Jun 21, 2012

I have created a wpf vb.net project and am trying to set a simple databing. I'm not quiet sure how to set my DataContext = this; in the codebind. Currently when i run the program my Label never is updated. I have included my code below. [code]....

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