Filled A Listbox With A Column Of Information From Sql Database?
Jul 9, 2009
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
I'm trying to develop an app to import a spreadsheet into an Access 97 database. I'm using Visual Studio 08. I'm stuck on the first step! I'm trying to use the Data Source Configuration Wizard to connect to the database, and when I get to the point where I choose which tables to add, I get the following error:
<COPYtblMHPuse>
Could not get column information for database object named 'COPYtblMHPuse' This is for any table I try to add.
After Filling a DataTable in GridView's DataSource . A column with check box Type appears but it created as read only column and I can't enable it or make it editable... even i tried .readonly = false and still can't be edited
If it is at all possible, I would like to print a page that is layed out with labels filled with text from previousley stored information from the program. now, obviousley, because the text can change in amount, and so the labels need to be able to change in size, and if at all possible allow multiple lines, though if there is no way to do it, then an unchagable text box would serfice.
There is a problem though, the fact that the labels will be changing size means that the position of the labels needs to be variable to the previouse. Example: the box above needs to be bigger, so the box bellow needs to drop down equall to the amount that the above grows.
I have a Query that is in designe mode I have created 4 columns and formatting 4 columns also in datagrid view control now I want to use datasource of dgv control now when i defining datasource property with table then dgv control displaying my predefine columnas and adding 4 more columns in dgv for defining datasource.now presently to avoid autogenerating columns I definie the autogeneration column=false at this situation if i define datasource=table the no data is come up..so my query is it is possible to filled up data in predifned column using datasource property.
I would like to populat the Listbox collection from a column from a Access database I already created the name of the collection as collections. I can autocomplete/Suggest a Textbox with no issues.[code]
Apparently, an unbound datagridview control cannot be filled at design time, so I have to create rows + fill cells through code. Currently, I use the following type of code to refer to cells:
I'm trying to read rows in a DataGridView and the following error is thrown up. The DataGridView was filled from an Excel Sheet with a column of currency. Ideally when the For Next loop finds a cell it doesn't like, I want to to ignore and resume the loop. The error message is: Object reference not set to an instance of an object
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Try For Each row As DataGridViewRow In Me.DataGridView2.Rows FirstString = row.Cells(0).Value.ToString
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
SELECT Invoices.ID, Invoices.invoicenu, Invoices.pdate, InvoiceList.icaption, Invoices.icaptioncode, Invoices.ccode, Invoices.postedbill, Invoices.billnumber, SUM(InvoicesDetaile.price) AS Tprice FROM InvoiceList INNER JOIN
[code]....
a datagridview is showing dataset data and user check checkedcolumn of datagridview (postedbill filed) and after user mark a few rows , i want update (invoice table) in database .
So im trying to fill a combo box with data from a database but depending on how much a pregressbar is filled THis is what im trying:
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load If Form1.ProgressBar9.Value <= 10 Then Me.Level1TableAdapter.Fill(Me.CTDBDataSet1.Level1)
I'm using Visual Basic 2008 Express Edition, so I have a combobox that gets filled with items from a data base made with Microsoft Acces, the combobox is filled with the values stored in a column from a table in de database so the user can select an "option" from it, I want to add labels that show the values for the corresponding row of that column. I used the Data Source panel to drag and drop the labels corresponding to the values that I want and it works it show the value that I want when I compile the application (at least I think it does, it could be that it's only selecting the first entry) the problem is that when I select a diferent entry on the combobox the labels don't refresh with the new values. How can I do that?
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how does Visual Basic Populates de combobox and gets the value of the other Acces DB entrys to change the .text value of the labels? And I mean the actual code that does that.
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.
i tried creating a dataset using the myodbc driver 5.1 (which im sure is correctly typed in because that is the exact same connection string i used for data manipulation within my app.now, im stuck. i cannot generate any reports because the dataset i created can not return any field information w/c is confusing because it displays the names of the tables from the database. is there any way i can import all the data i need to my reports programatically??
I want to be able to get the table structure / design / column information from an access database. I have created a post in the Database/Access section with no luck, here, but I am wondering if I could achieve this through vb (2008 express edition) rather than the access sql query itself. My overall goal is to compare one DB structure with another, an integrity check if you will.
I have a listbox which collects data regarding the planets. I would like to give the user the ability to print out this listbox with a push of a button.Heres a sample of the listbox coding info:
I have a dataset with a number of data columns, due to sizing issues I've updated a number of the varchar columns from say VARCHAR(20) to VARCHAR(50).I'd like the DataTable to automatically grab the new column information, is this possible? I'd rather not go through each column in the table and update the length.
txtMsg.Text = "Message from " & e.MSISDN & " . Message - " & e.TextMessage &ControlChars.CrLfand i want to change it to insert into a listview instead.Eg inserting the e.MSISDN information into a FROM column of the listview.
i have to add a student to my listbox but with many informations for example i have many textboxs (textbox for the age of the student, textbox for the name of the student & ECT) how can i had one student with all these infromation(age, name, major) in the load form also when i click on the student in listbox it shows age in the textbox1, name in textbox2 & ECT add student with multiple information in listbox [form load], and when i click on the student in the listbox it shows the students infromation on each textbox like textbox1 age, textbox2 name it's all with visual basic language.
How do I convert input box information to the listbox in visual basic I'm trying to display my information in the listbox as shown vehicle speed : (the number entered here) time traveled: ( number of hours entered here)
I have A name in a Textbox and numbers in a Listbox and I need to get the name and the Numbers to appear in another list box and also I need to get this "|" to appear between the numbers. THis is the code on my main form
Private Sub btnUpdate_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpdate.Click Dim UpdateScoreForm As New frmUpdateScore UpdateScoreForm.txtScore.Text = ListBox2.SelectedItem
[code]....
This code will work only if there is 3 items in the listbox but I need it to work no matter how many itmes are in the list box
I am creating a program with multiple Forms designed to track multiple projects.The first form is designed to setup new projects and obtain previous projects, from there the other forms open to be filled in with information.For new projects the next forms open blank but I then need these later forms to be tied to this project name so that it can be selected from a combobox and the information will be already populated.tieing the information on the later forms to the projects populated in the combobox so that it appears when a specific project is selected.Is this able to be done without creating databases?
As an example, say I create a new project then a new form opens and I add some information to a textbox.I would then like to be able to save the information so that the project name moves to the combobox on the first form (I can handle this) and the information input in to the textbox is tied to the project name so that when the program is reopened and the project name is selected the second form opens with the textbox populated.
This is kind of hard to explain... I would like to create a listbox, that holds items, and those items store data. Ill try to explain with this picture below. The code I have now is Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click