Identical Comboboxes For 2 Different Fields:ie WorkState And HomeState
Jul 21, 2009
VB.Net, Visual Std 2008 These 2 fields would use the same table for the display data, but "MyInfo.workState, ie KS" and "MyInfo.homeState, ie TX" would be 2 different fields. How do you avoid syncing the "Display Member" of these 2 comboboxes. In other words, if the user first selects "KS" for the workState combobox, how do you avoid the workState combobox display changing to "TX" when you change homeState combobox to "TX"? Do you have to use different databinding sources for each like combobox.
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Apr 19, 2012
I have 8 comboBoxes and 8 identical items in each comboBox.If I select one of the items in comboBox1, how can make this item to disappear from all other comboBoxes ?
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Apr 24, 2012
this is a subset of a previously posted problem, I have narrowed down my issue and am reposting a question from this thread: [URL] I have apparently confused the compiler by renaming some comboboxes in Visual Basic .net express? (See relevant code below) I think the confusion is in who should handle what, with two routines named with variations of ComboBox1 and one handling the other ( it confuses me just trying to interpret it mentally):
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Oct 28, 2011
I have a form with 4 comboboxes and a button. The first combobox is enabled, but the rest of the controls are disabled. When the form is opened I fill the first combobox (cbxMethod) with a datatable. When the user selects something in cbxMethod the next combobox (cbxStudy) will be filled and so on. When the last combobox (cbxAnalyte) has a selected value I want to enable the button and give it focus so the user can move forward with the program. I basically want to force the user to move from one combobox to the other, until all are filled.I am currently using the SelectionValueChange event, but this event only fires when the user changes the value with their mouse or hits the Enter key, not when the user hits the Tab key.
Public Class frmCalculatedAnalyte
Private cv_dt As New DataTable
Public Sub New()
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Nov 14, 2011
I'm currently refactoring an old Visual Basic DLL (VB.Net), which stores all of its data in one module called Globaldefinitions as public fields. There are about 200 fields, referenced thousands of times all around the code:
Public Module Globaldefinitons
Public a As Short
...
Public zz10 As Double
[Code]...
I need to change the module into a class with non-shared fields. This means, each and every of these thousands of references needs to reference the instance of that class:
globalDefinitionsInstance.a = 5
How do I go about this efficiently?
Regular expressions operating on the source fall flat. Refactoring tools like Re-Sharper or CodeRush don't seem to offer this functionality. Visual Studio 2010 cannot do it automatically either.
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Jun 19, 2011
Class Foo
ReadOnly name As String
Public Sub New(name As String, dependentUpon As Foo)
Me.name = name
[code]....
The output of New Bar() is:
Dependent created. Dependent upon nothing.
Independent created. Dependent upon nothing.
It seems fields are initialized in the same order as they appear in the source code, which (a) leads to an unexpected result, and (b) seems a little puzzling, given that one is normally not permitted to read from uninitialized variables in .NET, yet that seems to be working fine above.I would've expected VB.NET to be smart enough to initialize referenced fields first, and only then those that reference it; i.e. I'd have liked to see this output instead:
Independent created. Dependent upon nothing.
Dependent created. Dependent upon Independent.
how to get VB.NET to behave like that instead, without simply having to swap the declaration order of dependent and independent inside class Bar?
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May 27, 2012
I'm trying to create a table in Word using data from a table in Access. There are four fields in the access table that I need. 3 fields are text which I can populate the Word without any issues. However the fourth field is a memo with >255 characters.I'm struggling to come up with the proper code to allow me to populate the Word field with the memo data that has more than 255 characters. The code I have so far is listed below. But when it hits the memo field, it crashes on the line I marked with **. I know it's not text, but I've tried many different field types, but nothing has worked so far.[code]...
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Jan 14, 2012
My intent is to have the code - on a button.click event - check the Username and Password fields and return an error depending on which is wrong. Or if both are wrong, return a different error message. I've set the username as parts and the password as parts (still learning how to use external authentication). [Code]
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Aug 17, 2010
I have several sqldatasources for my gridview. All of the columns are autogenerated. However they all have some consistent fields and I'd like to make those fields template fields so I can modify the edit template for them such as adding a drop down menu. Is this possible?
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Sep 3, 2009
experience on how to create an engine using C# (VB.NET is okay too) that is generic enough to handle most cases of MS Word text fields I need to fill with data I'm getting from a database? In short, I'm about to embark on this little Office automation excursion and I'm hoping a little bit of feedback here.
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Aug 15, 2010
Most of my check boxes look like these (on the left of the picture) (ignore the checked check box in the upper left corner , I am not talking about tat one) :However , ONLY on tab 2 the check boxes look differently in both cases the check boxes are Disabled , but they don't look the same . Why is that ? I even tried copying the check boxes from tab 3 to tab 2 but to my surprise they once again looked differently ! This only happens on tab 2 . How is this possible ?
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Dec 22, 2010
What is the difference in the two blocks of code below? I expected them to return the same result, but they don't.
In the case where xml.@Type = "null", I want PatientMetricTypeID (a nullable Integer) to end up being Nothing.
Block #1: If()
In this case, it ends up as 0. It looks like Nothing is being treated as an Integer and converted to 0. I can sort of see why this might happen but not fully... I would like to understand exactly how this works, and if there is a workaround.
Dim PatientMetricTypeID As Integer? = If(xml.@Type = "null",
Nothing,
CType([Enum].Parse(GetType(PatientMetricTypes), xml.@Type), Integer))
Block #2: If
In this case, it ends up as Nothing -- expected behavior.
Dim PatientMetricTypeID As Integer?
If xml.@Type = "null" Then
[CODE]...
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Feb 2, 2010
Are these two vb methods identical in function
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May 25, 2011
1. This is probably really easy and I'm just missing it. I have 4 tabs in a controller. The contents in all four tabs will be identical (pictures, text boxes etc.) the end user would then add whatever to it. Whenever I try to copy the contents from tab 1 to any other tabs using ctrl+c and ctrl+v they get all out of alignment. Is there a way to duplicate a tab in the editor so that when flipping through the tabs all the text and pictures are in the exact same spot? I'm going out of mind on something that seams so simple.I don't want to have to write down the location of a couple of hundred controls and then retype them all 3 more times.
2. I can also only select text boxes, labels, and pictures at the same time. It will not let me select text boxes, labels, pictures and drawn lines all at the same time. So I can't really copy and paste everything at the same time I have to do it twice which makes the alignment get even more screwed up.
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Mar 1, 2012
i have n-Strings. Something about 100. But most of them are identical. How could i remove these multiple string and have only each string one time?
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Jun 20, 2012
is there any listindex property is available like vb6 in vs.net ? .because i want in the combo box .when it loads at least very first item needs to be selected .so let me know any way to do it
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Apr 17, 2010
I made a program with Visual Studio Express 2008, compiled for .Net Framework 3.5
I transferred the .exe and the other 2 files to my brothers laptop who also uses Windows 7, .Net Framework 3.5.
Every time I run the file it says "Windows Application has stopped working..."
However, I run it fine on my PC and it is also Windows 7, .Net Framework 3.5
Can anyone else think of a reason the program won't work on my brothers laptop?
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Jun 5, 2011
I've just about scrambled my brain on this, searching and trying things, so I'm hoping someone sees something that I'm missing or can explain it to me. I'm new to .NET, used to do a lot of programming in VB but that was many years ago.
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Jan 24, 2012
How can I copy form and make identical form
say want to copy the style of one form & coding and make identicel form 2
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Jan 19, 2012
I'm on Windows Vista Home Premium, using Visual Express 2010, working on a visual basic program.
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Jan 15, 2012
I have an application which has a tabcontrol that contains two tabpages. I have a custom made usercontrol docked to fill up each of those tabs. When I resize my main form to the minimum size allowed one tab resizes accordingly while the other seems to overflow the area and a couple ui items slip out of access/view.
One usercontrol was quite literally copied from the other and renamed and fields adjusted. The usercontrol size is the same between the two. Within the usercontrols there is a datagridview and a large panel full of textboxes and they have identical sizes and identical anchoring properties and even the same location coordinates.
I'm struggling to find a difference between the two but I really would like the resize behavior to match between the two usercontrols. I was wondering if anyone would have ideas of other things to check I did not mention here?
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Jan 24, 2012
I wish to insert a row into an SQL table a multiple number of times. The only field that will change is the Primary key ID which will update automatically.
To enter the INSERT into a loop seems very inefficient (time). The only other way I can find to do this is build up an array of values and do a multiple INSERT but again this seems very inefficient (memory) when the values will all be identical.
Is there a way of saying insert this row a variable number of times?
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Nov 16, 2010
is it possible to search and retrieve identical photos in a database using VB.NET platform
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Mar 17, 2011
I have made a little Hotkeys utility for Poker Tables. I hook the keys and, depending from the key, I simulate a mouse click over the related table button.The Sub that make the job is this:
Private Sub DoMouse(ByVal flags As NativeMethods.MOUSEEVENTF, ByVal Wheel As Integer)
'wheel = +-120 if wheel event, 0 in other cases
'added hoping to improve the code, but nothing changes, Hwnd is a global variable
[code].....
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Feb 19, 2011
The Sub that make the job is this:
Private Sub DoMouse(ByVal flags As NativeMethods.MOUSEEVENTF, ByVal Wheel As Integer)
'wheel = +-120 if wheel event, 0 in other cases
'added hoping to improve the code, but nothing changes, Hwnd is a global variable
[code].....
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Apr 8, 2012
I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
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I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
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Oct 17, 2010
[code] I dont really understand what the error-msg means. I've used this bit of code in many of my projects but this time I get this error: [code]
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Jan 26, 2010
I have a Class called People.I have an object called Roger, another called Sally.How can I copy my 'Roger' object over top of 'Sally' so they are identical?
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Feb 15, 2010
I am trying to compare the text in a Dualist control. If an item is present in both left and right then delete the one in the left item.I have tried passing to array and comparing but There seems to be something wrong somewhere.
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Feb 9, 2012
I've have found answers here frequently in the past just from browsing. But now I'm completely dumbfounded.
I'm using Visual Basic 2010 Express, on Win7 32bit. My application talks to an Arduino via a virtual com port provided by a cheap Bluetooth to serial adapter. I use a text based protocol that is working fairly well. BUT one method in my code, taht seems functionally equivvalent to the other methods is locking up my whole window.
It does this whether I'm debugging or running the exe.Below are the offending method, and a simmilar one defined above it that works with no problems.
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If I comment out the cal to write, everything works fine. Aside from me setting some state bools and playing with button titles in the first method, I can't see the difference as to why one works fine and the other hangs.
I really hope someone has some experience in the SerialPort object and VB that can shed some light on this.I've tried everything I can think of. I thought maybe it was the inline concatenation, so I dim'd a local and assigned the string to it, and passed that to Write. But I have another method that uses inline concatenation that doesn't do this.
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