I would like to read a ValueMember of all checked items in my CheckedListBox. i have sub as below to add im my checkedListBox.[code]Then how to loop each of the checked items in the checkedlistbox so that i can store it to the database.below is the code for storing in database using sp.[code]
View 1 Repliesi have a database that stores clients, categories and sub categories, what i am doing is creating a form that programatically creates tab pages on a tab control for each category and a checked list box with each sub category as an item. so that when the form is displayed it only shows categories and sub categories relevent to the client.
Dim tabpage as Integer = 0
ab.Open("select distinct category from etc etc", connectionstring)
While Not ab.EOF
TabControl1.TabPages.Add(ab.Fields("category").Value)
[Code].....
I have a Listview with 5 columns. It display data taken from textbox. I want to save all these data to a database. I am using VB 2010 Express with Access database. I have tried the various codes in this forum but seem not be able to work it out. What code should i use? Also i have found many suggesting that a datagridview is a better option, how would i update the DGV with data from the textbox control, as this POS application and calculations are done for eventual printing of a receipt and saving the data to the db.
View 1 RepliesHow to save ITEMS on listbox to MySQL Database in vb.net.
View 10 RepliesI am looking to save the contents of a listbox to a database, but I want all of the listboxes items to go into one field.
View 14 RepliesIs there a way to fill a checked list box with data from a sql table and then use the checked items as parameters or a stored procedure?
View 5 Replieshow do I overcome it? I have created a class and compiled into .dll This code
[Code]...
In Visual Studio 2008, if I do this:
[Code]....
Does anyone here know how to get the above to work WITHOUT warnings being generated?
In the following code i get a warning at line 59:Warning 1: Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.and.. At line 78 I get this Warning:
Warning 2 Property 'SelectedCustomer' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
The program compiles and runs well, but i cant' undesrtand the reason for these warnings. Any Idea ?
1: Public Class Form1
2:
3: 'Form level members
4: Private objCustomers As New ArrayList
[code]....
Got an issue with lstFriends.Items.Add part of this code, says that "Items isn't a member of String". What does that mean exactly and more importantly how do I fix it so this code will work. What I am trying to do is make it so the btnAdd will add a name to lstFriends if it's not there already and for the btnRemove will remove a selected name
View 14 RepliesCannot appear to be able to get this function to not have the above error.Private Function GetIncidentActions(ByVal FromAgentID As Integer, ByVal ToAgentID As Integer, ByVal incidentAction As Integer, ByVal ActionDate As Date) As String
[Code]...
How can I save ALL of the items in a listview, items that were added by the user? I tried application Settings and tried creating a settings file but there is not a settings option for listview items.
View 8 RepliesI have created a class called 'MyAddress' and in the form load event i am adding few objects of that class to the combobox. I want to know how should i set and read the values of the member variables of that selected item of the combobox. I have tried this and is working, but i am not sure whether it is the way to do
vb
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
I have researched the net, youtube, and the msdn DB, and still can not find the working answer I am looking for. I would like someone to show me how you would save the contents of "Listbox1" to a .txt file using the "Save As" Option. I know how to hardcode a savepoint in, but since there will be multiple users I would like the option to be up to the end-user.
View 4 RepliesI want to get all items from one column of database table to the combobox items.
View 2 RepliesI am trying to create a Member database and I am pretty new at vb. I need to be able to set a database query and return only the members that expire in a certain month to a data grid. I would also like the year for the query to be set to the current year so the query doesnt return expirations for the following years. Im not really sure how to even start.
View 5 RepliesI'm "cloning" objects in my code. For instance: objClone = objOriginal My question is: Does the assignment operator in VB.NET 1.1 do a member-by-member copy of the objOriginal to objClone or does objClone simply point as a reference to memory referenced by objOriginal?
View 3 Repliesi changed a class variable to shared so i can access it in all instances of the class, but it caused an error. what is causing this, and how can i fix it?
Private
Shared img As Bitmap
Me
.img = bgImage
I have 2 tables Table A & Table B Table A has the table values that I want to be populated in a datagridview control.The challenge is that column 1 in table A contains an ID(foreign key) to a name field that is a located in table B. I need the datagrid to have the first column be a combobox that displays the names(from Table B) that are already in table A via the ID's, but reference the populating values from Table B. So that when you bring down the combobox you would be choosing from Table B data but populating table A with the ID and you would see a name there instead of an ID.[code] How do I populate my DS dataset with Table B? And how can I create a link to these two tables using a bound datagridview control?
View 1 RepliesHow can I add and save items to a List of Items in a listbox to an existing Text File in the bin folder? I'm already using IOStreamReader to pull information from the file, but I want the user to be able to add additional items (Name and Last name). Also, I'm having some issues organizing the list in the list box.How can I organize it pro pertly (2 columns)
View 1 RepliesWhat is the best way to save listview items?
View 3 RepliesI have a combo box in my vb.net webbrowser when during a particular session the cobo box displays the all pages visited when the form is closed all vanishes[code]...
View 2 RepliesHow i can save listbox items? Which settings need to use ?
View 1 RepliesI have a form with a listbox. I'm trying to save the items that I add in the listbox to a file that i create when I use the save dialog. Every time I run this and try to save the file with all the listbox items, I get an error from VB that says "Procedure call or argument is not valid."[code]...
View 15 RepliesMy download manager records the history of your downloads, The problem is that I can't seem to find a code to save the Items in that combo box in a txt file.
I tried this but did not work:
SaveFileDialog1.ShowDialog(ComboBox1.Items)
How do you save items in a combo box?
View 8 RepliesI have a CheckedListbox on my form which the user chooses the item/s necessary and then proceeds to calculate a few things which end up being displayed in a datagridview.The items are settings on how the calculations should work, if they want to include the client's goals, or reduce their income, etc. My question is this; what is the best way to save the CheckedListbox checked items when they click a button 'Save as default'? And once they open the form, if the user has already input their default settings how do I get these to display once the form is
View 6 RepliesI want to know the code to save items from listbox to txt file in desktop
iam using this code to save in D[code]...
i need to know what i have to chenge to save the file to the desktop
I get this error if I follow these steps: Change property Y of an object (an associated entity property)
Attempt to submit changes At this point the value of Y and the value of X (the underlying key) are not in agreement -- LINQ to SQL apparently doesn't synchronize these until GetChangeSet is called.An expected error occurs due to some business logic or database level constraint during the update operation.At this point the value of Y is in agreement with X because GetChangeSet was called.Change the value of Y to Nothing (aka null).Call GetChangeSet.
The error occurs on the last step because the value of X and the original value of X (returned by GetOriginalEntityState) are different, and the new value does not agree with Y? Is that why? Is this a bug in LINQ to SQL. Must be because I don't see the same behavior if I change Y to another (non-null) value instead during step 5. What's the right way around this? I can see a few ways:
Discard the DataContext when an error occurs and leave the UI as-is. I don't like this because then optimistic cocurrency change conflicts cannot be detected. The new context doesn't have the original values in it that were populated at the same time the UI was populated, so if the UI has any stale values in it, they will cause data in the database to revert.Refresh the datacontext (OverwriteCurrent) and leave the UI as-is. I don't like this for the same reason as #1.Refresh the datacontext (OverwriteCurrent) and re-populate the UI. I don't like this because then the error message just presented to the user does not show the user the error they made and allow them to correct it. It also discards all the other changes the user may have made.When the error occurs, explicitly retrieve the key for Y that corresponds to the original value of X and reset Y, then call GetChangeSet to re-synchronize X (X is read-only or private so I can't reset it directly). This seems to work, but seems like a hack, and may require lots of code for other similar errors.
I know I have done this before and as I remember it should be really easy. But for some strange reason I can't do it now and I am about to jump off the building.I will make it simple:Two tables, one is just a list of products and their code.The other table: "details" has a field named product. I want to store only the code there.In the second table's entry form, I am putting a combobox. This combo box should display the list of products, their names, but depending on which one is selected, the code is what is passed to the table "details". Currently If I set the display member to product and the value member to code it still pases the product to the binded data source.
View 3 Replies