oledb

I have an openFileDialog tool. I will choose a excel file from my computer and my programme read a column (for example A column) and write my listbox on GUI. How can i do it via OleDB? I am new at C#. If you explain detailed, I will be happy for that. Thank you for your help. In order to use the OLEDB provider successfully we have to consider a few points. The OLEDB provider for Excel 2003 files is different from the one used for Excel 2007/2010 files. So, the first thing we have to do is determining the Excel file format in order to select the correct provider. In the code example below I

I am trying to write a program where I can write data to an Access DB but I keep getting the error “Syntax error in INSERT INTO statement”. FirstLast is the name of the table; First and Last are columns in it. Imports System.Data.OleDb Public Class Form1 Dim theConnectionString As New OleDbConnection Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click theConnectionString.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\user\Documents\Database1.accdb" Dim cmd As OleDbCommand = New OleDbCommand("INSERT INTO

Having problem with the code below in a web service. Have searched for a solution but nothing that I have seen seems different to what I am doing below. NB: The string variable 'AccountNo' is a passed into a function which includes the code below. The error is generated on the last line of code - ExecuteReader. Dim sConnString As String Dim rdr As OleDbDataReader Dim orderPaid As Decimal Dim fbeused As Decimal sConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\orders.mdb'" Dim conn As New OleDbConnection(sConnString) Dim sb As New StringBuilder sb.Append("SELECT DISTINCTROW

I am trying to use C# to query a mote MS ACCESS database .mdb file. I can successfully query it when copying the file to my local machine. I just want to put the file remotely, so my the client side program doesn't contain raw data. static string m_path = "http://www.xyz.com/temp/"; static string m_connWords = "Provider=Microsoft.JET.OLEDB.4.0;data source = " + m_path + "data.mdb"; I skip the rest of code doing connection, reader, and query. I am sure when I have my m_path change to a local path for a local mdb copy, it works. And I can download the mdb file when using the url path, so the url

I am developing an information system that works with a connected data source / MS Access database. The question is kinda cliche but I can't seem to find a proper solution from the similar ones I have come across. Here is my code for the button. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 'myConnection.ConnectionString = connString 'myConnection.Open() If Me.txtConfirmPasscode.Text = Me.txtNewPasscode.Text Then Dim updateCmd As OleDbCommand = New OleDbCommand("UPDATE Users SET Password = @ConfPasscode WHERE [Usernames] = @UsersID"

myConnection.Open() rtb_Address.Clear() txt_Name.Clear() Dim str As String str = "SELECT * FROM table1 WHERE (cus_ID = '" & txt_ID.Text & "')" Dim cmd As OleDbCommand = New OleDbCommand(str, myConnection) dr = cmd.ExecuteReader() While dr.Read() rtb_Address.Text = dr("cus_Addr").ToString txt_Name.Text = dr("cus_Name").ToString End While myConnection.Close() Error in dr = cmd.ExecuteReader() dr is declared as OleDbDataReader cus_ID is probaly a numeric data type, but you try to query it with a string: (cus_ID = 'thevalue') . Just remove the enclosing ' : (cus_ID = thevalue) or better, use a