I am unable to initialize textbox and combobox in my form when i click on the binding navigator 'New' button. Why is it so? But at the same time the datetimepicker does!ere's the code:
Private Sub BindingNavigatorAddNewItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click
Me.CreatedbyTextBox.Text = Master.user
[code].....
I have a tab control application, each tab loads a particular user control and each of those user controls will then add other user controls that are used amongst other the user controls. For example, I have an "ucQuotes" page and an "ucInventory" page, when the specific tab is selected, the "uc****" user control is loaded on that page, and in the case of "ucQuotes" and "ucInventory" they both use a control called "ucPartNumber"; a user control consisting of a combobox, textbox, and button. I have no issues reusing the shared user controls, in this case. My problem arises with my "ucQuickPrice" control, as it is always present at the bottom of the tab control form (separate from the tabcontrol, but on the same form), and it too uses ucPartnumber.
Here's my issue, as I type into the ucPartnumber combobox, the text I type does not appear in the combobox, it appears in the textbox of the ucPartnumber control that is being used on the tabcontrol page. There are no shared instances of ucPartNumber, nor do I have this issue between typing on one tab page and the text showing on the user control of another tab page.I tried just creating the ucPartNumber controls on the ucQuickPrice control, not adding a new instance of ucPartnumber on the .Load event, and the issue persists.
The combobox(s) in question are bound programmatically with about 40,000 items, ".datasource = dataset.tablename" not to a bindingsource. Autocomplete is set to none, I added code to utilize tool tips and the basic combobox filtering functionality. Is this a bug, or is there something I'm neglecting? I'm about 95% complete with this application, and this just happened today. I made the decision, to just reuse the ucPartNumber control on the ucQuickPrice control (originallly it's size and orientation would not fit, but I added some coding to detect what parent is adding ucPartNumber and to change its appearance accordingly). Before, I made this change, I did not have this problem. And, in trying to go back to how I had things set up before the change, the problem will not go away. if the whole control within a control verbage I used is a bit confusing, let me know and I'll try to better explain what is happening. At this point, I'm going to close and reopen vbexpress, as when I started this ordeal, vb started acting weird and wanted me to save all my work, it usually does this before locking up.
i wan to display the text from combobox into the textbox and clear the combobox text when click on the button.But when i select another text from the combobox and click the button, the textbox display and overwrite the previous text.How can i do so that when click, textbox display text from combobox and clear combobox text. Then click again, display the new text at 2nd line of the textbox without deleting the previous text?
View 5 RepliesI am trying to write a VB .NET (2008) DLL. When the DLL loads, I would like to perform an initialization task. Trouble is, I don't know how to do this. If I were writing this in C++, I would put the necessary code in DllMain, and all would be well. Is there any similar mechanism to DllMain in VB .NET? Or is there another way to do this?
View 4 RepliesI need to do a dynamically loaded Header and Footer on Master page where there are two placeholders to store the users controls which will become the Headers and Footers. The reason why I am doing it to make it more customizable and it is the how it is required from my supervisor as well.So I have two key-value in web.config such as <add key="MasterHeader" key="~/Controls/Header.ascx"/> <add key=" Master Footer" key="~/Controls/Footer.ascx"/>So I am wondering which Page event should I load these users controls by saying
[code]...
Where is the best Page event to put the codes above?Do I need to put something in the page directive to make it work?
I have created a project in VB.net and its working fine in my machine.But when I provide the exe to my senior to test it shows the initialization error.I came to know the reason that the error is because the microsoft .net framework is not updated in my seniors machine....So there can be a possibility that the framework might not be updated on the client's machine as well.... when the user clicks on the exe file it should check that the microsoft framework is present and updated if not then the exe file should first prompt the user that the microsoft framework is needed and should be updated and start the installation....
View 10 RepliesIs there a way to add comments to an array initialization? For example:
Dim test As UShort() = { _
1, _
2, _
3, _
4 _
}
I'd like to add a comment on each line, but the obvious syntaxes fail (for obvious reasons)
1, 'test _
1 'test, _
So, am I out of luck?
i want to create an anonymous class in vb.net exactly like this:
[Code]...
I create a form2.vb which have a report viewr and modifier set to public. In reportviewer properties i add the Report1.rdlc Now i want to pass the vlue in the textbox at report1.rdlc i use following steps and code to do it butnot sucessful yet i need ur guidelines first from menu click report ___ report parameter and set the parameter name like conparm. Then i frm2 load event i write following
[Code]...
When I want to run several programs out of visual studio IDE the program couldn't be run and this message appear for me and say ("Unable to find a version of the runtime to to run this application")I am using visual studio 2005 .net My program is made by basic language.What am i do to fix this error??
View 2 RepliesI am Visual Foxpro Programmer and moved to Vb.Net.
In Foxpro for each control I add to the form, there is a method called Init where this is executed only once when the form run.
I am doing the code for a control in the Form_Load and things working fine.
I am Visual Foxpro Programmer and moved to Vb.Net. In Foxpro for each control I add to the form, there is a method called Init where this is executed only once when the form run.
View 2 RepliesI am experiencing some trouble with the autogenerated initializecomponent function. Visual Studio insists on initializing a variable like the following, when I drag a usercontrol onto a form:
Dim HierarchyTreeNode1 As NewDelfiLib.HierarchyTreeNode = CType(New System.Windows.Forms.TreeNode(""), ND.HierarchyTreeNode)
why is this code not working?
Dim tcplistener As New System.Net.Sockets.TcpListener
This does not compile with the error "Overload resolution failed because no accessible 'New' accepts this number of arguments." The thing is, I have to declare it as New because otherwise I will get a null-reference exception...
I'm new to VB and my question is whether all elements of an array will be initially zero per default:
Dim myArray( nx, ny ) As Single (all elements zero ?)
or do i have to loop over the array and set all elements to zero?
(p.s. my background is in Fortran where the standard does not guarantee that all elements will be zero initially and one has to set all elements to zero explicitly if one desires a zero-initialized array. )
I'm looking for a list numeric type initalization identifiers for both C# and VB.Net.[code]
View 3 RepliesI am using visual studio 2008 and i can't seem to rectify this error..it seems simple but i really can't seem to rectify this.What iam trying to do is pass the values of an initialized string array to an uninitialized string array using a loop..here's my code:-
Document ^doc = gcnew Document("Abdul.doc");
String ^yes = doc->GetText();
array<Char>^chars = {' '};
array<String^>^splitx = yes->Split(chars);
[code]....
Whats the difference between these two initialization methods for obj? I've seen both of these, but know know if there is an appropriate time to use one vs the other. I found this post which covers C#, but not sure if the same applies to VB.Net.[code]
View 3 Replieson installing a application which was packaged through inno setup on a windows xp machine X84
i am getting error as .net intialization error
what i made was while on try i had uninstalled the .net framework 2.0,3.0 and 3.5 and 4.0 and reinstalled frame work 3.5 and 4.0 + restarted the system and also i have tried to repair the frame work installation
but no good results
I'm wondering if you know if there is a better way to write this code in order to speed it up. It has several blocks of if statements filling arrays, like this:
row0: If x < b(1, 1) Then a1(i, j + 1) = 0
If x > b(1, 1) And x < b(1, 2) Then a1(i, j + 1) = 30
If x > b(1, 2) And x < b(1, 3) Then a1(i, j + 1) = 60
[code].....
When starting my application, I have a couple of classes which are required to read certain files in order to create a set of default data. The logical place (to me) to do this is in a Shared class constructor; the idea would be to throw a class-level event if the reading of the defaults file fails. Unfortunately, this does not work as attempting to access such an event, in order to attach a handler to it, fires the class constructor before the event has been attached. In a failing case, the constructor starts, fires the fail event, the constructor completes, and then the event handler is attached, after the event has fired.
The only other solution I can think of is to give the class a "typeInitialisedSuccessfully" boolean property and put a try/catch block around every call to construct an instance of the class, which seems unnecessarily kludgey to me. Can someone suggest a more elegant solution?
EDIT: Because this is a fundamental Class, used in one form or another across nearly all of our software tools, I would greatly prefer a solution that will notify future programmers that the type initialiser needs to be called, which is why I initially went towards the Shared Constructor as a solution.
Got a question regarding declaring a variable. Basically I have a module that writes to a text file using textwriter which is declared for the whole module to use at the top of the code. But what I want to do is clear the contents of the text file when the program is executed (using file.writealltext). The problem I have is that the file is obviously already in use as a result of the textwriter and the file cannot be modified because of this.
My question is: is there any way of declaring the textWriter object later on (not during the initial initialization of the module) without passing the object between functions? Setting the variable as inactive or something along those lines during initialization would be ideal.
I have developed a windows forms desktop application using vb.net 2005. It is installed on client computers using a setup package.
One of the clients wants to redistribute the setup package to other users.
He wants to provide the users with an initialization file containing the database server name which they will be using, so that it is available when the application is installed. They are apparently incapable of physically typing in a server name themselves after installing the application.
Is there any way I can include a separate file with the setup package which the application can find after it has been installed?
I am on one asignment of convering C# to VB.net and stuck up with this problem.C# application has one class having inline two dimensional array initialized with size 168X168. I converted same class to Vb.net. Now whenever I create instance of my this VB.net class, It take almost 3 minute.
To figure out problem, I put break point on sub new() (first line of my constructor), and behaviour is realy strange because it takes 3 minutes to reach at first point of my constructor.Whenever I comment out my large size array initialization code, It works perfect. Now please note that same code is working fine in C#. It is not taking even few millisecond to initialize that class.
Consider a simple VB.NET form with a couple of radio buttons and a checkbox.
Each of the radio buttons has a CheckedChanged handler setup that performs some action based on the state of the checkbox.
My problem is, when I initialize on the default radiobutton to be checked (from the designer properties window) the CheckedChanged event is fired for that radio button, but the Checkbox hasn't been initialized yet so I either get a null pointer exception or the wrong value is used in the handler. Either way, I don't want that handler code to be run unless the user picks a radio button after the form has been loaded.
I currently get around this by not initializing the radio button, but I need to set that default eventually and the best place is from the designer. I also can add a boolean field that's not set to true until the form is fully loaded and not process the events if that is false, but it's a dirty hack.
What can I do to prevent that handler from running its code?
My nightmare had been back again ".NET Framework Initialization Error "I make a program in basic language but when I want to run the program out of visual studio IDE this Error appears for me : the title : " .NET Framework Initialization Error" the body : "Unable to find a version of the runtime to run this application."
View 2 RepliesIm trying to make a Quoting system, you select the person you want to get a famous qoute from and then evey time you hit refresh you get a new quote from the txt file (churchill.txt) how do i get the list box to work nd the refresh button
View 3 RepliesThe following code works fine in VBA Goal of the code is to find (select) all cells in an Excel worksheet where the backgrounf cell color is Yellow (6) or Rose (38)
Sub SelectColorsViaArray()
Dim e As Variant
Dim r As Range
Dim x As Range
[code]....
3) With the above, I still do not understand how to integrate the Variant and Array differences from VB6 to VB.Net. I know what to do with all other like: Application.FindFormat.Interior.ColorIndex ... etc.
I am getting "Initialization of the dynamic link library c:WINNTsystem32COMCTL32.dll failed. The process is terminating abnormally" when I tried to install a vb package in Windows NT.
View 2 RepliesI'm building a website, and I am trying to create a connection to the database. Here is the Connection code in my web.config file:[code]And this highlights the Connection string in the VB.NET code behind page. I've checked the details of the original connection string contained within the web.config file, and I've used the ConnectionStrings.com website for the actual code. I'm at a loss to explain or to figure out why this isn't working?
View 1 Replies