I am using vs2005 with access database.In that program I have a small problem.I have joined 2 tables and get 2 column with a parametrized query.The query will work efficiently on a access database.When applying thru vs environment it doesn't do anything.I think that is a small error in my code displaying the listbox.[code]
View 1 RepliesI have a listbox on my form which gets items added as the program progresses, when there are more items than the box can display, the vertical scrollbar appears, fine... so far so good.I would like the scrollbar default position to be at the bottom of it's column so that the last entered item is displayed but can't find the relevant command, I assume there is such a command.
View 2 RepliesI am wriing a vb.net windows application to log and store information. then display it in a sortable multiple column listbox (I personally like FlexGrid by Component One). However... I am not sure how to go about storing the information. Should I go with a .sdf file database, registry, simply storing them in a file, or some other method?
What I need is to be able to:
read/write/delete from it
read possibly up to a 20mb file and sorting it without a lot of lag
be transported to multiple systems and maintain these writes (installed on many systems)
I know I could split up the reading/writing to anther thread. Even to other .DLL's and whatnot. But as for storing. Not sure what the best option is.
i am developing a software using microsoft visual studio basic 2010. I set up a connection string to my server and take the data from there. I am using gridcontrolview and put my "product" table in here. It contain 4 column: systemid, system, actualid, description. I want to display only system column (it's easy, just hide the others column) But, In "system" column, there are a lot of similar data, i want to display only distinct data from this column in the grid
example, the column consist: STSTEM
topaz
topaz
topaz
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i try to user "add query", buat if i get rid of the other 3 column, there will be error message like "the output is different with the schema"
I have a program and I get time data from a sqldb and display it in a column in a listbox. What are the proper steps for adding the time as I iterate through the data in the column? I figure I will need to do some conversions on the time to be able to add it and display it as a total.
View 9 RepliesIs it possible to select an item in one listbox and then display the data of another listbox with the same indexed position? I am planning a project and this is something I would like to attempt but I haven't figured out how to do it.[code..]
I tried doing the above code but instead of displaying the listbox text the message box just returned false.
I enter Names and scores from a text box. Once i press "show me the array" my listbox gets populated with the names and scores. [code]...
View 14 RepliesI have two text files, the first text file has two columns separated by a space (" ") and the second text file only has one column.
The column 1 in text file 1 and text file 2 match albeit in different order, what I'm trying to achieve is for every field in column 1 text file 2 I want to search for column 1 in text file 1 and display the matching column 2 field in column 2 text file 2.
Dim*OpenTextFile*As*String*= IO.Path.Combine("C:Test1.txt")
Dim*OpenTextFile2*As*String*= IO.Path.Combine("C:Test2.txt")
Dim*SaveTextFile*As*String*= IO.Path.Combine("C:Test2.txt")
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I have a datagrdview with a large number of columns, but I want to always display it showing the most right handside data columns, as if the horizontal scroll bar was set to the far right - how do I do this?VB2005 starter
View 3 Repliesmy homework question is to display the selected items from a listbox (multi-extended) in a label. I need to display all the selected names in a label. the simplest most uncluttered way of doing this. This is what I've got but it doesn't work.
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I select four columns(those are informations about payed fee for each member...so it could have zero or more rows) from my database (from two different tables), one record as "ID" and other three (i've band them together) as "Rest".Then, I've put that column "Rest" as a DisplayMember for my first ListBox...because I couldn't find a solution to put that "ID" column in the same ListBox, and make it invisible for user (I need "ID" column for accessing those fields about payed fee) I've made another ListBox and set DisplayMember = "ID".
I've put that ListBox on Visible=False and when I select rows from first ListBox "ID" is also changing and on event "SelectedIndexChange" for first ListBox I'm trying to get this "ID", store it into Integer variable and then put it into another select query that will select only selected pay fee from database...everything of this works fine but when I try to put that data from the last select query (something like this: TextBox3.Text = dataTablePodaci.Rows(0).Item(1) ) to a different textboxes (because there are three columns in select) here comes the problem, suddenly. The thing is that I can't see my real records in the main ListBox anymore...and instead of that for all rows I get:
How to assign value from a listbox into a column of a datagrid?
When user press Enter by placing the cursor into a particular column, it will display a listbox holding data values.
Now i need to assign the value that i click in the listbox to the datagrid column. how could i achieve this?
I have a listbox with two columns. Each listbox item contains a horizontal stacked panel which in turn contains textblocks.
The listbox is empty, with each listbox item being added by the end-user through a couple of textboxes placed elsewhere. The first column accepts strings, and the second column accepts only percentages.
(I have attached a relevant portion of the event sub where a user is adding new rows.)
Private Sub btnAddItem_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles btnAddSplit.Click
'...
Dim ListBoxItemName As New TextBlock
[Code]....
I would like to be able to check every time the above event is fired that the column of percentages does not exceed 100%. I have a couple of labels below the listbox itself where I would like to show the running total and the remainder.
My questions are:
1) How can I loop through the second column of percentages to show the running total and remainder?
2) Is there something more suitable than a ListBox that could make this easier?
I'm trying to get data from one column on my datagridview (That is reading data from an SQL Database) and put the column into a listbox.im using Datagridview as I made a program that was previously using a HUGE number of querys that make the program very inefitient when im only after one number etc, instead im downloading all the information to a datagridview object then using that for my querys then updating the database, at the minute i need to be able to manipulate the data into VB objects so the user doesnt get confused, need 1 column from datagridview to populate a listbox.
View 2 RepliesHow can I add a button to a listbox? I mean: for every single item, one button. I want the button in another column.
View 4 RepliesI have 3 columns, "Username", "Email","Password"and this is for a program I am making so people can sign up for my program and I will have a webpage to display the username email and passwords in a hidden input textbox. When the user loads the form it wll go to the website, get the text from the hidden textbox, and load it into a get all the emails and passwords and load them into a datagrid and under the appropriate columns. How do I add items to a column the same as I would with a listbox?
View 6 Replies<asp:GridView ID="GridView2" runat="server" AllowPaging="True" AutoGenerateColumns="False"
DataSourceID="opendiarysource" Font-Size="Small" style="font-size: 8pt; border-top-style: solid; border-right-style: solid; border-left-style: solid; border-bottom-style: solid; color: black;" AllowSorting="True" >
<Columns>
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I have a problem i want to display value of a column from table i want view the value when form loaded. I am writing this code on form load but its not working
Dim cnString As String
cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")
[Code].....
I'm trying to get the value of the third column of any row in a listbox, and this code works ONCE (It doesn't matter what column I select, I get the value), after that, and row I select has an Argument out of range exception. Here's the code:
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I have filled a listbox with a column of information from my sql database
Private Sub GetClients() Dim sqlCom As SqlCommand = New SqlCommand("select emailaddress from register where paymentreceived = 'No'", sqlCon) sqlCon.Open() sqlAdapter = New SqlDataAdapter(sqlCom) sqlAdapter.Fill(sqlDS, "register") dr = sqlCom.ExecuteReader If dr.HasRows Then For Each rec As Common.DbDataRecord In dr alRows.Add(rec) Next ListBox1.DataSource = alRows ListBox1.DisplayMember = "emailaddress" End If sqlCon.Close() End Sub
But now when i try to loop through the rows of the listbox
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Rather using a DatagridView Column ComboBox i need in this phase of my project, to use a listbox outside the datagridview ,o pass values from listbox to the datagridview. I do not want these Values to be default in that, column of DGV but when adding new rows i want to pass different values,always form listbox to the DGV..
View 14 RepliesI've got this working but there's something I don't understand about it. I have a DataGridView and a listbox. I want to position the listbox to be the same location as the topmost visible cell in the column the mouse is in. The end result will be that a context menu will be provided to show the user the distinct values in that column which is why I want the listbox to show over the column that it's displaying data for, just below the header cell. I'm testing right now using the CellMouseEnter event and the following code is working:
Private Sub dgvItems_CellMouseEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvItems.CellMouseEnter
If e.ColumnIndex >= 0 Then
[code].....
i need to import an Excel Column into a list box, how i can do this??
View 2 RepliesI am using the following code for a combobox to display a series of codes depending upon the value entered in combobox1. This works fine except the column being displayed contains a 6 character field (A99999) and I would like to display only the last 5 numeric characters rather than the whole column. otherwise I shall have to add an additional field into the table which contains just the numeric part of the code.
Dim LowestVal As String
LowestVal = ComboBox1.Text & "00000"
Dim HighestVal As String
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I am making a combobox from my data source. Basically, This is a projects form and the user needs to select the the primary contact which is contrained by the customer id (GETbyCustomerID) set in another field. I have it working... mostly except the combobox only displays the contact ID which is completely useless to the user. I need to know how to display the First and Last name (both are seperate columns in the table).
View 1 RepliesI am reading a xml file and display all the data in datagrid view. But when I chose to display data of just one column only the data comes in the dgv but no column header. Same problem shows up, if I chose to display a particular row of a particular column. How can I fix this ??
Private Sub all_columns()
Try
ds.Tables.Clear()
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i have a windows form with controls that i have associated with a database. all controls display the correct value but i'm having problem with 1 of them. i have added a listbox (not even sure if that is the correct control for that) where i want to display the list of the first column from the database. i want the listbox to display all items so when i click on one item, the other controls will be updated with the information about that item. i know the connection to the DB works because all other controls have the values from the first item. only the listbox is empty.
View 2 RepliesPrivate Sub ComboBox2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedIndexChanged
Try
Using connection As New SqlConnection("server=localhost;database=att;uid=sa;
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this is my code ..i want to display the sum of all no_of_days(column name) in textbox6...if i use button then it is fine..when i use in combobox and try to display when selected index is changed then i get error while running program"Conversion from type 'DBNull' to type 'Double' is not valid."
I am using VB express 2008 with MSAccess as Database. I have a table DailyExpenses in MsAccess with four columns of which one is ColumnPaid having checkboxes. I used following query to display records of DailyExpenses in Listview: Dim cmd As New OleDb.OleDbCommand("Select * FROM DailyExpenses ", con)
It is working fine but it displays False in the column PAID in Listview instead of checkboxes. How i can display checkboxes in Listview?
I use the following coding to display some data in a rich text box, I have some additional coding which checks for duplicates, sorts it etc.However would it be possible to only display the first column? My columns are separated by a space (" ").
richtextbox1.Text = System.IO.File.ReadAllText("Path")
Dim LinesList As New List(Of String)
LinesList.AddRange(richtextbox1.Lines)
[code].....