I have two comboboxes on my form and both are bound to the same datatable. The problem is that each time a value is selected from one combobox, the value in the other combobox changes to the value selected in the former. Is there anyway to disable this behaviour?Only performance counts!
View 2 Replies[Code]...
the combo box will display the current powder size, how do I get it to display the current powder size of the alloy and all the available powder sizes from the powder size table? By the way I'm using EF to retrieve and save data.
I have a form with 8 combo boxes and would like to disble certain combo boxes, depending on what was selected in another combo box. The reason is so the user will not have a blank return on a query. The first form I created like this worked great, no issues. This form only allows one combo box (Number_of_Lightheads) to disable any others. Below is the code I have for this Form. why the other combo boxes will not disable the ones that are called out in the code?
Option Compare Database
Private Sub High_Def_AfterUpdate()
If Me.High_Def = Yes Then
[Code]....
How to disable a textbox and combo box by coding not by changing their properties?
View 3 RepliesI've read many posts about disabling Alt+Ctrl+Del and Ctrl+Tab, etc. I'm not looking to do that. What I'm trying to do is create an app which will be hidden, and then need to be unhidden from "anywhere." For example, if I have an Excel spreadsheet open, I want to be able to use a combo like Ctrl+U to Unhide my program, but I do NOT want it to underline the text in the cell I'm currently in (which Excel will normally do). I don't want to worry about disabling or changing shortcut combinations for Excel, Word, etc.
View 9 RepliesHow to disable other controls when an item is selected from a different combo box. When someone selects a specific item from the combo box provided, It should automatically disable other controls specified to be disable.
View 2 RepliesI have a combo box on a form. I have a SelectedIndexChanged event, that displays a message box when the combo box has another item from it selected. This works fine. However when the form is loaded, I initially want to set the current drop down box item from the database, then AFTER I have set the current value, I want this event to work. Problem is from the get go when the form loads it asks me the question as its being changed from 'no data' to then be populated with a bunch of data and an item selected.
[Code]...
I currently have my cute little first program made... I'm just stepping into the water with this programming thing. I made a program where you can select a shape from a drop-down list and then input some values and click a button and get the area of the shape. I have it working so that when a certain shape is chosen, certain fields are disabled, such as when you pick "circle" from the combo box, the "length", "width", and "number of sides" text boxes are disabled but the "radius" text box is enabled, thus allowing you to enter the radius and find the area. I want to make it so that when you first load the program, all of the text boxes for the length, width, number of sides and radius are disabled until you select a shape from the list. Currently I'm using
[Code]...
This works for disabling the correct boxes when something is selected, but I don't know if I'm even on the right path with that first part.
I am confused what will happen, when I disable a timer. Will it finish the process and then disable or will it immediately disable without completing process? for example
[Code]....
I want to run getMessage from somewhere else, so I need to disable timer during that time to be asured not to override anything and also before timer disable it should complete that function code.
to disable right click and to disable the start button and task bar?
View 4 Repliesi wanted to link options selected from Comb box A (general) to specific options in combo box B (specific). I want to pick a word in Combo box A that has specific words/phrases in Combo Box B show. But not all the words to show in the combo box B if they aren't associated with the Word picked in Combo Box A. Ex.When "Soda" is picked in A, only "Coke, Sprite, Fanta" should be visible in combo box b, not everything else.This is the code i used to make the boxes, but i don't know how to link them.
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' fills the combo boxes with values
Me.xGeneralComboBox.Items.Add("Soda")
Me.xGeneralComboBox.Items.Add("Juice")
[code]....
How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
[Code]...
I am getting an error when i try to populate some combo boxes with a value, the combo box has values in and the right amount the code is getting the right number.
the error msg is "Object reference not set to an instance of an object."
Combo box 2 is filled based on a selection made in combo box 1 and a listview is populated based on the selection made in combo box 2.When the LostFocus event completes in combo box 1, it hits the LostFocus event in Combo Box 2 but it shouldn't. How do I prevent this from happening or if I can't prevent it, how do I work around it? The following is the code used.
Private Sub cboCategory_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboCategory.LostFocus
[code].....
I have a windows application and a php web application(not connected to internet all times), eventually data add/remove/update can happen at either places. So data has to be synchronized every day or manually.
I have a small sqllite database file (less than 500K) in my end, and the php web app uses Mysql, the structures remain the same. I would like to have a update function in my windows app, which sends my sqllite database file directly to my webserver and then1. Php should read values from the sqllite database files insert some values into mysql from the uploaded file 2. Php should read values from the mysql database files and insert them to sqllite database file
and finally send them back to my windows client pc. I would like to use .net 2.0.Anyone has an idea to get the above done or a suggestion to make the sync easier will help me a lot. Give me light on how the architecture or design should be done to achieve this
I have a class that sends an email which i use sendasyc
SMTPServer.SendAsync(message, _message_id)
The result of the email is captured by the following code
Sub SendCompletedCallback(ByVal sender As Object, ByVal e As AsyncCompletedEventArgs)
Dim message_id As String = CType(e.UserState, String)
[Code]....
This works fine when the code is run within a form but when i move it into a dll calling it from a console app it neither sends emails nor picks up any errors.
Public Class Form1
Public elapsed_time As TimeSpan
Public start_time, stop_time As DateTime
Public txtBreak As String = "180"
[code]....
All the code needs to be controled by seperate timers as the user may need to pause timer3 or timer4 at any one time. The problem I have is that after about 5 minutes the time and elapsed time are about three seconds ahead of the two count down timers.
I've got some code like the following. I want it so that when I chose an item in 'select 1' it changes the in the second combo box but I'm not sure of the best way to go about it. Does it have to be AJax or can it be done with just Javascript?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[code].....
I'm just looking for an answer or idea.I plan to connect vb.net to mysql (which is done) and also the PHP connected to the mysql.But I'm confuse with something.VB.NET is use for offline things (which people will come to store and buy), but PHP is buying / booking online. (You know the airport things right ? customer can directly go to the airport and buy tickets or they can buy tickets from the internet)
For ex :Customer A come to airport and buy a ticket which is only left 1 tickets. Customer B wanted to buy from the internet. Both of them saw there is only left 1 tickets. So, both of them buying. When Customer A buy, the employee click buy at the same time with Customer B.In here, I'm confuse, how to declare which person should get the ticket because they click buy at the same time (server time because PHP and MySQL located to the server and vb.net applciation located to other PC/Machine) ?.
On my form I have a button that says "Sync To USB" When its clicked this is what I want to happen: The files in ListBox3 will be copied onto a USB Mass Storage Device (if it is inserted) otherwise it will play the sound "USB not inserted.WMV".
View 5 Repliesi just want to ask if how can i sync my files (like dropbox) via web service? is that possible in vb.net?
View 2 RepliesHow can I sync 2 binding sources, both binding sources contain the same data(contactsbindingsource)I have 2 forms:1 form is a list of contact information the other is a search form.I have a linq querie in the search form that returns contact names to a datagridview, but I want to be able to double click on selected cell and have the relevant data appear on my first form.Also my first form has FK relationship to another form that contains company information, could this have something to do with it?
View 6 RepliesI am reading a lot in this forum about sync. It must be fantastic. I look a round for any tutorial, but I haven't found one. Let me tell me the story about the new program I want to write.I am working on a campsite in France. When there is a problem like a Mobilehome isn't clean. The person who is working on the reception write a note and the one how is going to fix it will be called. This is not a really good thing.I like to write an program in Visual Basic that allow the person who is working at the reception write the task in an program. This program will use a database to store the task. The person who is working at the campsite will see the task at his mobile phone (Windows mobile 6) He will fix the task and the reception can see in the application that the task is done.So I need a database who is synchronized whit the one in the mobile phone. The mobile phone can work offline and online. By online the database will be synchronized to the one in the reception.
View 1 RepliesI have a small "Clinic Application" that runs on two machines. (Receptionists & Doctors)
Same application is installed at both the computers, and they access the same SQL Server 2008 Data at a 3rd macine.
When the application is started, the local datasets are filled with the data from the 3rd machine (using tableadapter.fill).
Whenever the Receptionist adds a Patient in DataGrid,and saved it, it should show in Doctors DataGrid. and whenever Doctor adds something, the receptionists dataGrid should show it.
to accomplish this I have set a timer that keeps Filling datasets.
the task is successfully accomplished, but....
I have a new requirement to sync a DVR to an NTP server, but not sure how. I have googled and forum searched, but a lot is VB6 stuff and also for sync'ing a local computer's time. This requirement is for sync'ing time for a Digital Video Recorder on the network.
View 10 RepliesI have been using vb.net for a while. I am trying to figure out if there is a way that i can update file in a given folder to ftp and get any file on server back using vb.net?
View 2 Repliesi'm interested in syncing a remote folder and a local one over FTP but I don't want to use 3rd party components since this is not going to be a public build so I see no reason to invest on something like this now any code snippets or so available? PS. remote folder includes folders also that can change so I want to keep an update of the remote folder on my PC.
View 3 RepliesI have 2 listview with the same number of lines, what I want to do is when a user scroll the fist listview I want to second one to scroll too.
View 3 RepliesI have an application that has several stopwatches. I would like to be able to 'sync' a stopwatch with another at any given time. I tried setting the Elapsed time of one stopwatch to that of another stopwatch but I get that that property is 'read only'.
View 2 RepliesHow do you guys take control of a listbox in a form from another form? I could have sworn I've done this before but can't remember how or find any of my programs that did this. In form load i populate a listbox with a routine. I wish to call that routine again to refresh it from another form.
View 3 Replies