20,285 Topics
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 | Group, I'm using `System.IO.File.Move` to move an existing file into another folder. However it the program is stopping at this point with the error message "The process cannot access this file because is being used by another process". Unfortunately I can't find "the other process". For the record, I've also … |
| | HI, I have a form1 with datagridview, and same datagridview in form2. both have databindingsource so when I update any data in form1 it should reflect the changes in form2, when both are open. Here is some what could i get, but its not refreshing the data. form 2 load … |
| | In the code below, I'm trying (works) to insert a mail message before the signature line. With each new email within a run, the email new window flashes on the user's desktop. I'd like to minimize to outlook window to reduce the 'flashing'. The email is sent correctly but I … |
| | Hi im trying to do this project for class on functions. I am little confused on what i am doing wrong. Here is the assignment 1) Write a program to calculate the wind chill. The wind chill is calculated by using the ambient temperature and the wind speed. Wind chill …  |
 | In my windows form, I have a combo box which is populated with (part code)values from my database and I'm finding it hard to set each equivalent (part name)value to a text box which is in the same table. I was able to populate combo box values using the code … |
 | My tables in MS Access doesn't have any change which it did not update the record that I entered in Visual Studio.. This is my code. Private Sub btnSubmit_Click(sender As Object, e As EventArgs) Handles btnSubmit.Click On Error GoTo saveErr RequestSoftwareBindingSource.EndEdit() RequestSoftwareTableAdapter.Update(FYPDataSet.RequestSoftware) MessageBox.Show("Your request has been submitted.", "Thank you", MessageBoxButtons.OK, …  |
| | Hi !! I would seek help to do the following: I'm working on an application for Pocket PC with visual studio 2005 in which over the contents of a txt file in a DataGrid (No DatadridView); I would like to know how the whole contents of the DataGrid to the … |
| | Hi guys, I am trying to update a single column in an already existing record with a value in a textbox in Access database using VB.NET 2008 express edition. This is how it should happen, combo box is drawing product IDs from the table and two textboxes display product description …  |
| | Hello, we have to create a football scoreboard in Visual Basic. Purpose: The application calculates the points scored during a football game by one team Requirements: 1. The user clicks the enter score button in an input box object to enter a score after the football team scores 1. Each …  |
| | Little League Batting Average Windows Application: Finds the avg batting average of the starting line-up of nine little league baseball players. The user enters the present batting avg of each of the nine players to compute the team batting avg. 1.The user clicks the Enter Batting Averages button to enter …  |
| | I tried to make a setup file wherein i want to install and unistall the application/system that i made but when i try to run the application and i tried to save, edit, order and other stuff in the application it says "Operation must use an updateable query" i use … |
| | need some assistance. I am currently learning vb.net with sql. I have two textboxes (txtValue and txtText) , a dropdownlist (ddl1) and save button (btnAdd). I insert value to txtValue and txtText (eg: txtValue: A and txtText: Apple). when i click button Add, The value will display in dropdownlist (like … |
| | Hi guys, I need help with some homework... hopefully this is the right forum. So my last project assignment is making a shopping cart and having the user add, remove items therefrom. I am having a problem adjusting the totals after the items get removed from the cart: Using Lists … |
| | Public Function setEmailSend(ByVal sSubject As String, ByVal sBody As String, _ ByVal sTo As String) As Boolean Dim oApp As Outlook._Application Dim oMsg As Outlook._MailItem setEmailSend = False oApp = New Outlook.Application oMsg = CType(oApp.CreateItem(Outlook.OlItemType.olMailItem), Outlook._MailItem) oMsg.BodyFormat = Outlook.OlBodyFormat.olFormatRichText oMsg.Subject = sSubject oMsg.To = sTo 'here I need the current … |
| | I need some assistance here. I currently learning and i would like to create a simple webpage (as a hobby). I have two textboxes (textbox1 and textbox2) , a dropdownlist (ddlist) and save button (btnSave). I insert value to textbox1 and textbox2 (eg: textbox1: A and textbox2: Apple). when i … |
| | hi there, Dim queryString As String = "select avg(pumpnum) from petrol_table" Using adapter As New SqlDataAdapter(queryString, connectionString) Dim table As New DataTable adapter.Fill(table) Dim row As DataRow = table.Rows(0) TextBox5.Text = row.ToString as the code stands now, all i get in the textbox is "system.data.datarow" the column called "pumpnum" is … |
| | a)I am working on a payroll program The first base class is bonus the class should contain 2 public properties salesid and sales. Include a default constructor and a parameeterized constructor in the class.Also include a a getbonus method(function) that calculates a salespersons bonus using the formula sales*0.05 b) create … |
| | I am trying to update pdf file to sql but getting error (line 17) as **operator '&' is not defined for types 'string' and '1-dimensional array of byte'** on beow line cmd.CommandText = "UPDATE PDC_CHQ_IN_HAND set PDC_CHQ_IN_HAND.PDF='" & data & "'WHERE PDC_CHQ_IN_HAND.RefNo='" & TxtRefNo.Text & "'" * my code is* … |
| | Hello everyone, Dim SI As String = "" SI = CheckedListBox1.SelectedItem Dim TextcommandSQL As String = "" Dim myCOLUMN As String = "" myCOLUMN = ComboBox1.SelectedItem TextcommandSQL = "SELECT * FROM test_table where " & myCOLUMN & " = " & SI MsgBox(TextcommandSQL) Dim con As New SqlConnection con.ConnectionString = … |
 | I am getting this error while trying to login to my school managment software.It gives error message when i dont write anything in username and password but when i type correct login details it gives this error An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll Additional information: A connection … |
| | Hi,I would like to do a sorting when i had add new record,the new record must shown on the top of datagridview.It will always show latest record on top of the others old records.I had try several method that found from website but still cannot work!!! **code for load database … |
| | In my database there are two tables: the *CustOrder* table and the *Product* table. In my CustOrder winform I have a Product combobox, bound in this way : cbxProductCode.DataBindings.Add(New Binding("SelectedValue", ds1, "CustOrder.ProductCode")) and the combobox items comes with the following code: With cbxProductCode .DataSource = ds1.Tables("Product") .ValueMember = "ProductCode" .DisplayMember … |
| | Hello I am creating a little application, using VB.net, and Access database. I want to count the number of records whitch have more than 6 hours difference between records. Is it possible to have a query to count the number of recordset where the "Time End" and "Time Start" of … |
| | HI I have vb.net with ms access database application. I want to create log in form Here is my code but when enter the details and hit Login button it says"datatype mismatch error" Dim con As New OleDbConnection Dim cmd As New OleDbCommand Dim rd As OleDbDataReader con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data … |
| | Hi.. I have this problem in vb 2008 with this MDI parent form.. I know that you can't put any imageBackground for this, so I've just put a pictureBox the size of the MDIparent form to make it look like its background. But when I'm opening another form(it is just … |
| | ive got a table: code, stocksretail, stocksws and numexpected for example code: 0001, stocksretail : 24, stocksws: 1, numexpected :24 (numexpected = 1wholesale that contains 24pcs in retail) code: 0002, stocksretail : 24, stocksws: 1, numexpected :24 my problem is when i buy the two items above, the stocksretail should … |
 | I'm facing this strange problem while working with DataGridView. In my application that i'm building, there is a form with some tabs, and im using the dataGridView Controls in some of the tabs. These dataGridView controls have already been configured, with a number of columns already added, and has been … |
 | hi all, I tried to extract the files and corrupted file, the special characters you can see. (Rar! Ïs tÀ/ õ 3 ZÌtòf‰”F 3 app.config ð{‰sͼ”¸§Þp oßÁ›å 8Þcm8rAêOu±§Ñº“a¡‹SMk$I±4¤kó{ø) how to files may display the correct content thanks  |
| | Hi, in my project i need to update the attn_dateTimeOut in database.After i updated it will automatic delete the specific row record that had been updated. I had two question: 1) in my database there are a few table is assign not null."attn_dateTimeOut" is a table that haven insert any … |
 | Hi, how to dock this label to bottom ?  and how to remove all this line in chart ?  Code : Chart1.ChartAreas(0).AxisX.Interval = 1 Chart1.ChartAreas(0).AxisX.IntervalOffset = 1 |
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