Controls Not Reflecting Changes On Form Vb2010
Feb 8, 2011
this is somewhat related to my previous issue which was solved: [URL] Now my problem is none of the affected controls are changing on the form. The form itself is not frozen as an elapsed time is going fine on it. when I "F8" thru the code the I see the controls contain the correct values and if I do a messagebox display of the control contents it displays the correct value. but the controls themselves do not change on the form. for example: label1.text will still show blank even though thru code it contains "test". what am I missing here?
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Jul 13, 2009
I am developing an application on VB2008 with MySql as database. I opened the connection without any errors. I have three fields/columns in my database and on the form. When I am running vb form data is not reflecting on to form fields.
I have written the following code in form load event.
'Dim cn As ADODB.Connection
'Dim rs As New ADODB.Recordset
'cn = New ADODB.Connection
'cn.ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};" + "SERVER=localhost;" + "DATABASE=in_out;" + "UID=root;" + "PASSWORD=pacvision;" + "OPTION=3;"
'cn.Open()
'MessageBox.Show("Connection Opened Successfully")
'rs.Open("Select * from deptno", cn.ConnectionString, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockOptimistic)
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Dec 1, 2011
i'm trying using VB6 activex controls in VB2010. but i recive some registry errorsi try google search, but they speak about install VB6(i try but don't works).and theres a text from here:
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Nov 11, 2011
In code ConfigurationManager.AppSettings("IsFill") showing null
but when i open exe.config file manually that key is present in file
den i modify exe.config file using below code
Dim configFile As Configuration
configFile = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath)
configFile.AppSettings.Settings("AppVersion").Value = "1.0.1"
configFile.Save()
[Code]...
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Apr 25, 2012
I am new to this forum. I have created a module in which declared one structured in public. There were some fields earlier in the structure.
[Code]...
I have included statement includes project.modulename in my main project form where i am referring this structure. everything worked fine. Today, i added new field to the structure by name "example as string" and written some code in module itself to access this field. even this is working fine. but when i am trying to access this field in the main code it is not showing example as structure field and saying not a member.
The drop down suggestion of IDE is not showing this field in main code but in module code it is showing the field. Later, i also found that my debugger is also not working. I tried to clean solution, restart IDE, computer but nothing seems to be working.
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Aug 11, 2011
In datagridview,i want to display the amount without decimals. so whatever values coming from backend,i'm directly assigning to cells value.then in cell formatting event, i'm formatting values without decimals,so here after formatting,the formatted Cell Value not reflecting in Original value. when i read the formatted value , its displaying only assigned value not formatted value..ex :
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
DataGridView1.Item(0, 0).Value = Val(12.123)[code].......
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Mar 23, 2012
Basically the question is, Why are NONE of the changes I've been making in the designer reflecting on the program when it runs ?'none' is in bold because I've tried moving everything around and nothing seems to be affecting it, it's like it's reading from a different design file, I tried reloading the project and that did nothing, and none of my code affects position of any items on the form (way too much to post it all)
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Mar 15, 2012
I just converted my project from vb6 to vb2010 and am getting this error
Error11Name 'cdPrintSettings' is not declared.C:\Users\IT\Desktop\trial\TETRAD_.NET_UPGRADE\TetradUpgrade.NET\frmInvestorStatementPrintDialog.vb278Tetrad upgrde
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Nov 14, 2010
I am using a class to track if a user cleared their personal information found within some text boxes on a form. In the button click event to clear the text boxes I am creating a new object to the class and assigning true to one property value. Sounds simple until I try and submit the form with a different button, and create a another object reference that I use in an IF statement to check the property value for true. Every time the statement fails because the value being returned from the getter in my class is false.
[Code]...
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Apr 16, 2009
I have 3 text boxes that are related on a form. They come from the same dataset and the same table in the dataset. The 3rd textbox is defined in the table as the product of textbox (really the column) 1 and 2. The problem is when I save after changing textbox 1 or 2, 3 does not update reflecting the new product. I have a different form using a different dataset that does a similar setup correctly. What could be the difference between the 2 forms or tables or dataset that I could look for?
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Oct 4, 2010
Basically for a while now if i wanted to set a chks setting i would do this..
[Code]...
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Oct 15, 2011
im tried to make a vb creator to create account but how to show the captcha in my form?
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Sep 4, 2011
There is one-to-n relationship (foreign-key relationship) between tables As and Bs. Every time a new record is added in As, a trigger "after update" in table As creates n records in table Bs. There are two Linq-to-SQL classes A and B representing the tables As and Bs respectively.The class A contains Bs property an EntitySet(of B). Similarly in class B, there is a property A, an EntityRef(of A)
[Code]...
When above function is executed the result is always 0. Whereas there are six records new records has been added to table Bs every time the above function is executed.
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Jul 23, 2008
the access data are not getting reflected on the DataGridView unless the form is reloaded again. I am acessing the MSAcess data for back end processing (SELECT,DELETE)using odbc connection and displayin on .NET form using DataGridVew
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Jun 7, 2011
What is the VB2010 mechanism for obtaining a form's handle?
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Sep 19, 2011
Is it possible to make a program with visual basic 2010 that does not use the actual form but instead only uses other components (e.g. Message Box) to form a complete program?
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May 24, 2009
How can I add controls to a form in code and set the properties of the controls using the With statement?Also I would like to know how to add a container control and then add a control to that container.
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Apr 15, 2010
I have a slight problem With an enumaration of child controls on a form. The following code will not get but about have the controls that are on the form. The controls show that the count is correct but when it goes through the loop it skips over some of the controls. If you run it through the enumeration two or three times it will get all the controls a few at a time. The solution uses two forms, one that has the controls and the other that labels are made and displayed on. The Tx is just a index to add a number to the label.name and rename the label. So each label is identified seperately. This works for all the the controls that are seen in the for each loop.
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May 11, 2009
I created a class that can take either usercontrol.controls or form.controls as a parameter,how can i pass either to that class? as a property or how?
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Jun 14, 2012
Is there a way in VB to make something that will simulate an advanced command prompt inside of a Windows Form? For example, something like a greenscreen app?
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May 26, 2012
I have a module level sub that I use to clear text fields etc on my forms:
CODE:
The problem I have is in the last few lines of code as I'm not really sure how to access the text boxes contained within the tab controls (of which there are many tabs and many text boxes).
This is the closest I've got but I am getting an "option strict on disallows late binding" error on the tabCtl in the following line.
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Jan 16, 2012
I have a form. And some controls(such as TextBox,ComboBox,etc.) on the form.Now,I want to store the controls' Text into a .txt file(or any other formarts).Then I want to read the text in the .txt file to my controls.
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Feb 14, 2011
I try to transfer a vb6 application to vb2010. In the vb6 I start with a login panel that the user enter uid and password autenticate with the DBServer if ok show application main menu and close the login form. the order of the me.close() after the mainform.show() does not change, The application ends.
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Sep 27, 2010
Inside a form, I would like to display a pdf file which is already available in my resources (template file "untitled"). In this pdf file, I have some fields which get their values from some texboxes in another form. My aim is, when the user triggers the button to call this form, it should insert the values inside the pdf file and display the output pdf inside the form.I have written the code to an extend but could not finish it myself after my many trials... Now here are the two things I cannot manage:I can use a directory to read the template pdf "untitled1.pdf". But my aim is to use the file inside my resources. can save the output file in a directory but this is not I want to do. I want to display the output pdf.
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Nov 21, 2009
How would i make so when the user resizes the form the controls on the form resizes to what ever(ex: form become full screen textbox is full screen.
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Apr 15, 2010
I took picture box and some container controls on my MDI form but when I am opening my child forms it going to backside of my MDI forms controls.
How can I resolve this issue because I cannot remove my controls from my MDI form but at the same time I want to use my child form worked properly.
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Nov 30, 2010
I have a visual basic 2010 form with various group boxes, buttons, and labels. i want to be able to have the form maximized but when i do that the controls stay where they are at and they do not resize with the form. i want them to resize proportionately with the form.
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Oct 22, 2010
I have used VB (versions 2 - 6) through many years; however, I am crash-course training myself into the VB2008 / VB2010 world kicking a screaming. I would like suggestions as to what SQL database access method should I focus more on in my learning process without making me feel that I'm a million years behind. I know I have WinForms where I can create a datasourse and drag / drop fields or tables on a form to create a grid (not really what I'm looking for).
My trouble isn't so much designing the form but in how I access the database. Theres XML, LINQ to SQL, ADO.NET, and many other methods. Not only do I need to grasp these methods quickly but I also need to know what type of projects I should create. What I mean is...I was thinking that I would design a WinForm app; however, I see that there are WPF apps and others to chose from. This is getting deep. I know it depends on the project that I'm working on. My plans are to write an app based off of either an SQL Express 2008 or SQL Server 2008 database. This first app will be standalone for now but may later become multi-user. I know I'm far behind on my learning curve coming from VB6. I have read a bit on VB2005 / 2008 / 2010. I own
both VB2008 and VB2010. I use VB2008 at work. I know ADO.NET is still alive but by what I read online, it's a dying method and is only kept for backward compatibility. XML and LINQ to SQL and other methods are all pretty new to me.
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Nov 12, 2009
My problem is when i try to call Application.Run() in a application without a form i get "Object reference not set to an instance of an object." when i run it outside VS. but if ran in debug or release mode it works just fine. i may just be forgetting to setup application right, but ive done it before in this same manor and it worked fine.
Sub main() 'this runs first.
AddHandler Application.ApplicationExit, AddressOf ExitEventHandler
dbg_f("handle added")
[CODE]...
Commented out init_timer and init_ready, and now it causes the same error for the myName line. there seems to be something wrong with class Application. btw theres seems to be something wrong with the forum code formatting.
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Mar 7, 2010
I have 10 labels named lbl1, lbl2, ... lbl10
I'd like to change their propriety (using a cicle) with the cicle index
for i as integer=1 to 10 step 1
lbl (i) = PROPRETY 'I know this is wrong but it's what I would do...
end for
I'm using a workaround, but I'm looking for a better way..
[Code]...
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