I have a project in which the comboboxes above the code window, below the tabs have disappeared. If I open and close the project, they do not appear. If I open another project, they do appear. As soon as a open the project where they do not appear, they disappear.
View 5 RepliesI have a project where the dropdowns for the Form and controls (left side) and the events (right side) aren't available. I can re-boot, open and close the project or solution and still they do not show. They do show for other projects.how to make them come back?
View 3 Repliesthis 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):
[Code]...
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()
[code]....
When my full-screen sized Form is reduced in size by clicking on the "restore down" [i.e.] not to the minimized size but to in-between max and min, the scroll bar disappears. Is there a way to keep it automatically from disappearing [i.e.] to keep the scroll bar in view and available for use without having to make an adjustment to bring it back into view?
View 12 RepliesI create a cookie and it has the proper expiry set, but when I go to update the cookie and check it with the debugger the expiry is gone.
' Cookie Helper: Updates cookie with the selected source ids
Protected Sub UpdateCookieFor(ByVal cookieName As String, ByVal sourceIds As String)
' Update cookie if it exists
[code]....
I can't understand what I am doing wrong ... I have a form on which there is a label . This label is actually part of a control array of labels (it was created by the migration wizard trough the upgrading process) . Each time I run the program and call my form , a message appears saying :Control array element 12 doesn't existAnd this is what I don't understand .I can see it during design time , how come it disappears during run time ? I have even checked its Index property , it's 12
View 3 RepliesI have a vb.net 2005 windows form with a menu strip that keeps disappearing both in design mode and when the program runs. I noticed that on other forms there are more properties listed for the menu than this one has. Anybody familiar with this problem?
I am using a split container with docking set to full below the menu but several other programs are set that way without any problems.
I have a panel on my GUI with radio buttons. When I run the code to determine which is the checked radio button from that panel, the code runs fine, but the panel disappears from the GUI after that. Here is the code I have to determine the checked radio button:
Dim rbName = (From r As RadioButton In Panel1.Controls.OfType(Of RadioButton)() Where r.Checked Select r.Name)
System.Console.WriteLine(rbName.First)
I have tried using:
Panel1.Visible = True
and also
Panel1.Show()
Panel1.Refresh()
but it doesn't show the panel again. I tried the same thing for individual radio buttons such as RadioButton1.Visible = True and it doesn't work.
I have a bound datagridview and a dataset with tables.
I have two sets of comboboxes bound to the same field "Restaurant" in the tables (mirroring each other).
In the "NewEmployeeRestaurant" combobox I change the value and it reflects in the datagridview. I can shoot around clicking all over the datagridview on other employees, but when I return to the employee I changed, the value remains what I changed it to. All is good in the world.
However, when I go to the "EmployeeRestaurant" combobox with the same settings, I change the value and it is reflected in the datagridview. So far so good. But when I go to another employee then click back on that employee I changed, the datagridview still shows the new value but the combobox is empty! NOT COOL!
Me.Show()
Me.WindowState = FormWindowState.Normal
nfi.Visible = False
[code].....
When one of my students opened his project yesterday, the Form he designed for it was no longer available. He could run the program but he couldn't edit the form as it had disappeared. Later he couldn't run the program at all as the error said that the form name wasn't part of the WindowsApplication. What's going on?
View 4 RepliesOk, getting a little frustrated. I'm a new VB programmer (just a few months). Let me show you the start of my code so you can see what I'm trying to do:
Public Class Form1
Dim crude1 As Double = 0
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code]....
I am using VS2008 on Windows XP SP3. I have a form with two pairs of dependant comboboxes which are bound to a SQL database table. In each pair, the second combobox's choices are dependant upon the selection of the first combobox.
Both pairs of comboboxes behave as expected. However, when I use the binding navigator to look through other existing records, the text in the second pair of comboboxes disappears on records that already have selections.
The database table still holds the information, but it just doesn't display in the combobox. Again, this only happens on the second pair of comboboxes, not the first pair and both sets of comboboxes are set up exactly the same (albeit on different tables).
We have a question regarding VB.Net 2008. We are used control array in vb.net and third party timer controls. When handle received from external application to timer control event procedure, after this form becomes blank and controls disappear. What we have to do to persist the controls.
View 1 RepliesI am using Visual Studio 2008.
I have my project set to "Copy if New"
I created a form with variuos fields from a table.
I hit F5 to run the application and enter in test data and save.
I exit the project and then go back in and the new data is there.
I exit the visual studio 2008 completely and then go back in and the new data is there.
I did the above last night several time and the new data was always there.
This morning all of the new data I entered is gone... I have NOT changed the data base schema at all.
I am developing a VB.NET program. I currently have an ASP Textbox with a label showing inside it. But now the customer has to manually delete this label before entering their own text. How do I get this label to vanish as soon as they begin typing? My script is nearly working now for txtFind. But in this case, it shows a different textbox to display watermark image. How can I reset this watermark to only activate the txtFind textbox instead? And to remove the textbox on left-hand side?
Here is my new ASPX file code:
<script type="text/javascript" language="javascript" >
function GetChart(thepart, thepartdesc, thecolor, row) {
Form1.part_transfer.value = thepart;
Form1.part_desc_transfer.value = thepartdesc;
Form1.submit();
[Code] ......
I have a ListView that I am using to display specific data. In most of the columns, I have images that represent supported types. When I add these images and build the project, they go away.It worked for a few weeks until they suddenly disappeared.
View 8 RepliesWith .Net 3.5 / VB 2008 / WinXP...I'm using a Listview control in Details view. Two columns with an image on the left and text on the right. FullRowSelect is set to true. All works fine except that in the selected item the image is not visible. It's replaced by a white background. I need the image to be visible within the selected ListViewItem's blue background. Do I need to switch to OwnerDraw or is there another way to keep the image visible?
View 4 RepliesWithin my webpage I am loading usercontrols within a placeholder. Each of these user controls triggers a postback when an ajaxcontroltoolkit rating is changed. The problem I am having is that if I use [code]The Load_EvaluationList is what loads the user controls, if I place the IsPostBack check around those two, the controls disappear, what could be the problem
View 3 RepliesI'm usually a LAMP developer, but some .NET work has arrived. If I run the following code:
<% poundsign = "£" %>
<% Response.Write poundsign %>
<% Response.Write "£" %>
Nothing is displayed. However, outside of the <% %> tags (i.e., in the HTML) £ displays correctly. I have no trouble displaying the usual alphanumerics, it's just the £ sign that is proving problematic. The underlying file is in Windows 1252 encoding, and I need to serve it as such. If I save the file as UTF-8, I get mojibake instead of a £. What I can do to make this work, or any settings that might be preventing it from working (other than saving the file in a different format)?
Aside from the fact that my £s aren't appearing on the page, a major part of my problem is that I need to insert strings containing £ into a SQL server database, but if I form a SQL INSERT statement within the ASP, none of the £ signs end up appearing in the database. Inserting £ signs into the database from ASP isn't a problem when I save the .asp files as UTF-8 files, but I need everything to work in Windows 1252 encoding.
I have a solution built of 3 projects:
View 2 RepliesI have a windows forms application built in VS2005 and migrated to VS2008 that I "inherited" that occasionally will not show some of the objects (i.e. a button or something) when a user runs it. This is sporadic and does not seem to have any notable pattern.Are there any specific types of things I should be looking for that might cause such behavior? I tried looking at available memory and hard disk space issues and that did not seem to have any bearing on the problem.
View 5 RepliesI am using datetimepicker control.
Initially I am setting
DateTimePicker1.CustomFormat = " "
DateTimePicker1.Format = DateTimePickerFormat.Custom
[code].....
I've been coding an application over the last few months in VB.NET 2005 and have noticed that as the application is growing in size, I'm beginning to experience some strange behaviour in the IDE.For example : I have a tabcontrol docked in a form with 5 tabs. Each tab has a panel docked to it with several buttons, text fields, layout tables, datagrids etc. Sometimes immediately after saving the project, one of the tabs will go "white" and show no controls at all. There might be the odd outline of a control ( like you get when a control is hidden behind another ) but the only way to get them back is to close the project and open it again. It seems to be getting worse as the number of controls dropped onto the forms increases. Looking in the form designer.vb file I see that there are currently around 8000 lines.Is it possible that the designer file is so large that its having trouble loading/refreshing the view in the IDE ?
View 2 RepliesWhen my splash screen, I'm doing two tasks. First I'm checking for software updates and then installing them if they exist and second, I'm loading the main form with data.I don't want the splash page to close until these tasks have completed. I'm multi-threading it so I can update the UI accordingly, but that doesn't stop the splash screen from closing. The tasks in the background still complete of course, but that's not how I want to do it.
View 2 RepliesI have a solution built of 3 projects:
1. VB.NET Class Library - data access and objects, reusable methods, etc.
2. ASP.NET Web app - web application that references the class library
3. VB.NET Windows Form app - windows app that references the class library
I have no problems with the web app. It referenes the class library and every time the project is built the web app gets a freshly compiled dll from the class library.
My problem is with the windows form app. When I first add the reference to the class library project, I get all of the intellisense I'd expect while coding. When I try to compile, though, it's like the reference disappears and all my code that is based on the class library errors out with "'xxx' is not declared" or "'xxx' is not defined" where 'xxx' is a method or class within the class library. If I go into the project properties, the reference is still there, but the project no longer compiles and I also lose intellisense for all classes within the class library. If I remove and re-add the reference, it works again, until I try to compile. Then the errors occur again.
I've tried creating a separate Windows Forms project and just referencing the DLL created by the class library but get the same problem. HOWEVER, if I create a seperate blank WEB project and reference the dll (or the project), everything compiles fine. It seems to be something with my class library being referenced by a windows forms app.
For reference purposes, my class library has the following references:system, system.cor, system.data, system.data.datasetextensions, system.drawing, system.web, system.xml, system.xml.linq I noticed I can't add a reference to System.Web in my windows forms app, and I wonder if my problem is somewhere in this area. I need the reference is my class library because it passes some HttpContext objects back and forth to a few of the methods.
I am importing data from CSV file into a dataset using OLEDB data adaptor.I created a query with query builder to extract the desired data then copied the text generated into my code. Everything works as it should exepct that the seconds part of a datetime column is missing when the code is run.The odd thing about this is that the seconds part appears when i execute the query in query builder.[code]
View 3 RepliesI am coding on Windows 8, with the Visual Studio 2011 developer version. I wanted to know how to change something when a "form" is loaded. Form is in quotes because the actual page isn't a form. It's in the shape of a tablet, which you've probably guessed by now that I'm coding a tablet app.I just wanted to know how to change something when the actual app loads. I tried the "Loaded" sub, but that was confusing. It DID change a text from a textbox (I just tested it out as "textbox1.text = "test") and it worked. But when I try to make buttons visible false, nothing happens.I'm not sure if this is the right code (and I doubt it is, because it doesn't hide it on buttons either), but I typed in, let's say...
btn0.Visibility = False
nd this is the sub it's in...
Private Sub pgeMathAssist_Loaded(sender As Object, e As RoutedEventArgs) Handles
[code].....
I have set up a class as a facade to access the session variables for my app. In this app I store an entire dataset for a particular employer as a session variable.Within one of the sub pages I have a button that adds a row to an existing table stored in that dataset.
Dim curRow As Data.DataRow = mySession.tWorksiteOtherMeasures.NewRow()
curRow("lngWorksiteID") = getSelectedWorksiteID(getSelectedSiteID())
curRow("strMeasure") = ""
curRow("lngStatusID") = -1
[code]....
When in the code to add the row the row count increments and the row exists. Once out of that scope the page refreshes due to the button being contained in an updatePanel. When that happens and I click the add button again the row counts for that item reset to 0 and 1 after the code runs. The previous added row is gone.Here is how the Dataset is assigned from the web service:
Public Shared Sub loadDSEmployer(ByVal strUserId As String)
Dim myService As New someservice.service
mySession.dsEmployer = myService.GetEmployerAndSites(strUserId, isInternal)
End Sub