I have looked through the properties control but could not seem to find the option which let me to display the item in a combobox when form loads. I don't want to leave it empty when form loads.
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When a user clicks the + button on the binding navigator, I want to set the displayed item of acombobox to the value displayed in a label. The combobox is bound to a field in the table. Theproblemis that when the user clicks to add a new record the combobox is cleared and they forget to select a value before they click save.
View 7 RepliesThe first column in my Data Grid is actually not my first column. It has an arrow pointed to the first row and then the last row has an asterisk by it. Is there anyway to make this column not show every time my form loads?
View 1 RepliesI have a little problem that i want to show a "sub Combobox" with the help of super combobox. i don't know it is possible or not becux i'm beginner in VB.
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I know that sounds strange but I came across this website today that uses this ability and I've been going nuts trying to figure out how they do it.
The website is [URL]
Also here is a screenshot of the options I am speaking of
There is a combolistbox that has a list of topics.
Depending on what topic you choose will determine what checklistbox option will appear in the check list box.
What are they doing there to create that option? I was thinking that maybe they created 20 checkedlistboxes and then if the selection of the combolistbox is "THIS" then they set the getfocus to that checkedlistbox but that didn't quite work for me.
Also want it to load in the users default web browser if possible. I'm working on a little app for a small community online radio station and want to have a menu in the menu strip for the stations website, twitter profile and facebook profile. I'm new to VB and haven't figured out what I need to input for the click settings.
View 7 RepliesIs there anyway to carry one combo box from one form to another without the use of loops? I'm trying to figure out if it would be easier to represent a comb box in a new form, or if it would be easier to show it in a print preview window....
View 2 RepliesI have a simple web for that has a dropdown list and a button on the form.The dropdown list is bound to a table in my database and holds three values with idents between 1 and 3 (Weekly,Monthly, Please Select).I have set my datasource to pull back item 3 (Please Select) as the first item in the dropdown list to prompt the user to select an option. Items 1 & 2 have data assigned to them and this pulls back the relevent data for these options.
Here is my problem. I need to hide my button when the page loads until the user selects item 1 or 2 and would like the button to be hidden of option 3 is selected. I have tried to complete this in my page load event and the code for the dropdown list but i cannot seem to get this to work.
If IsNumeric(DropDownList1.SelectedValue) = 3 Then
btnAddAgendaTemplate.Visible = False
End If
Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
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I have a table databound to a combobox
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I have 3 columns in my database (book title, book author, date added). for example Karen Harper has 5 books in my database and Lisa Jackson has 3. I will enter the date added in a textbox (for example 01-15-2011 since all was added on that date) and once I click "show book author's name" my crystal report will display Karen Harper 5 times and Lisa Jackson displays 3.
View 2 RepliesI have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.
View 11 Repliesi have my main child form open. then i show the new form:
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but when the form opens it flickers a lot. so i want move the new form behind the main form while it loads so the user does not see the flicker. once it is done loading i will set the form to topmost. how do i move the new form behind the main form?
Just wondering if its possible for an image to be displayed along with some text when an item is clicked in a list box?
View 4 RepliesHow do I make a item on a form working in another one without moving it?
View 3 Repliesi am trying to make an application that loads images from the internet (from my FTP Server).The problem is that when i want to change the image by selecting another image from a ComboBox control my application becomes non-respondive.When the image is loaded the application works properly again.
I tried to move that in a separate thread so instead
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Is there a way to make a gallery that loads a directory automatically?like no browse.
lets say opens folder/images1
and list all images(pictures not names)
Well I want to make a log-in system that loads the .txt files from your server (Simular to this code:
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I am using VS2008 and I have a form which has a datagridview. This is for an invoice where I already have the user select the customer from a details view and want to have the items in the datagridview change based on what the customer selected. Then when the item is selected I want to have the price change accordingly.
So far I have the customer selction as well as the item combobox(not limited to cust items yet) appear, but I cannot figure out how to get the join of the 2 items (cust+item as the price varies from cust to cust) to change the price. Question is, is it possible to do this in the same datagridview, or should i try to just break this down some other way?
Within the program, there is a button that opens a file inside of a second form ( DocViewFrm ) and it works fine the first time around. Within this new window, there is a button that uses Me.Close() to close the window and return to the main window. Upon the attempt to open this second form a second time, the program crashes on the Me.DocViewFrm.Show() line. The error message reads:
An unhandled exception of type 'System.ObjectDisposedException' occurred in System.Windows.Forms.dll
Additional information: Cannot access a disposed object.
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How to make when the program loads to give 1 textbox to enter password: if they enter wrong password to give them message that the password is not right and to try again..if the password is right to open the corect form.can someone help me with that i have made 1 keygen program and i have insert there the keygens and to make the program to has more than 1 password inside to check
View 1 RepliesI have this code to add ToolStripMenuItems when my form loads.
Dim i As Integer = 0
Dim stanicastring As String
While i < ListBox1.Items.Count
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Ive created an application that reads plugins but I can't figure out a way of making a form thats housed in the plugin into an MDI for my existing application.[code]...
View 3 RepliesI want to be able to make labels on the form change with user-entered variables (that they would do before this form appears) and so when this form appears, I want the variables to already be displayed in the labels without them having to press a button, or click on something.
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[code] how do i apply that to all 30 textboxes when the form loads.
View 3 Repliesi have a datagridview and a textbox when the form loads i want to enter text in the textbox then in column 1 in the grid whenever it is focused i want the text from the textbox1 to appear no matter how many records i enter until the user changes the text for the next lot of records,
View 3 RepliesI have a table Called inventory, one of the columns is a checkbox based column called saved where it stores the checked state as the value 1 on the database. On a related form when i load it i want the datagridview to filter to only show the rows where saved has the value of 1.
View 5 RepliesHow do i go about creating an exception handler when i want to login to my form to access the rest of my forms. The username and password are linked to server.What if it doesnt connect to server? here is coding for me to login:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
If (txtUName.Text = "-") Or (txtUName.Text = "0") Or (txtUName.Text = "") Or
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I wrote this application in VB2008 and it ran for three years without problems(It had one first chance error during that time but ran correctly). I started having problems at the first of this year with a textbox not showing the update for the date code correctly. So I thought that maybe some update to the system had changed and I might need to do some code changes to take into account for these updates.I first tried to convert it to 2010 but the conversion would not operate correctly even though the code showed to be correct.It would jump from one form to another in the middle of a if statement using debug to step through the code. the if statement would just test for a variable to be less than 2 and then be changing the text in a textbox. So I decided that It would take longer to correct the converted application then to just use VB2008.
So I went back to VB2008 and my XP to find out why the date code had quit working. This code had been working correctly for three years.I was thinking some of the code used had become outdated in some way, because a copy of the original source would not run in debug mode correctly. It showed the same problem of not updating the textbox. I stepped through debug and found that it was doing the same thing as the VB2010 version and jumping in the middle of the if statment. So I rewrote the code and used the format string command to build the date code in stead of the seerating out the date into 3 variables using a split statment.This works for the textbox problem and stoped the jumping to a different form. But since I have went back to the original code I have the first chance errors comming up.
I have several first chance exceptions being thrown from debug. This happens when I fisrt start the debug and I have put break points all through the applicatins to try and find the problem I have also enabled debug exceptions Common runtime thrown and it still gives the exceptions but no break point.I have option Strict on. There is no errors or warnings showing after a build. I have cleaned the solution and exausted all my methods of troubleshoooting this problem.The following is what I am recieving while in debug mode in the immediate window.
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
Now if I run this as a published application I get the same error as the first one on the above list and it gives a error window with continue, exit,and details, if continue is pressed it will allow me to continue and the application runs correctly.The details just say basicly the same as the error with no error number and that the error was in my application.exe. Nethier of these errors will give a break point so that I can find the problem. The problem does not appear to be in my code because this happens before the first form appears.
I have a vb.net project in vs2008. When the project loads, one form is always immediately marked as changed before anything has been done to it. This didn't happen in earlier versions of the form. Nor does it happen with any other forms, classes, modules, etc. I have no idea why it is occurring but I am curious.
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