How to create a sample to sync Excel file with database using XlsIO?

An Excel file can be generated based on a selected value from database using XlsIO. The following steps illustrates to sync an Excel file with database.

Step 1: Create a database and load values of a specific field from the database to a dropdown on the web form.

Step 2: Select an ID from the provided drop down to download an excel file.

Step 3: Make some changes on the downloaded file. Then upload it using upload button.

Step 4: Now the changes are made in the database. It can be viewed in a grid after clicking the Upload Excel button.

Here is the code snippet to pull values from the database.

C#

            OleDbConnection oleDB = new OleDbConnection();
            oleDB.ConnectionString = string.Format(ConnectionString,            ResolveApplicationDataPath(DBFileName, false));
            OleDbCommand command = new OleDbCommand("SELECT CustomerID FROM Customers", oleDB);
            oleDB.Open();
            OleDbDataReader reader = command.ExecuteReader();
            while (reader.Read())
            {
                string customerID = reader.GetString(0);
                DropDownCustomers.Items.Add(customerID);
            }
            DropDownCustomers.SelectedIndex = 1;
            reader.Close();
            oleDB.Close();
 

VB

            Dim oleDB As OleDbConnection = New OleDbConnection()
            oleDB.ConnectionString = String.Format(ConnectionString, ResolveApplicationDataPath(DBFileName, False))
            Dim command As OleDbCommand = New OleDbCommand("SELECT CustomerID FROM Customers", oleDB)
            oleDB.Open()
            Dim reader As OleDbDataReader = command.ExecuteReader()
            While reader.Read()
             Dim customerID As String = reader.GetString(0)
            DropDownCustomers.Items.Add(customerID)
            End While
            DropDownCustomers.SelectedIndex = 1
            reader.Close()
            oleDB.Close()

Figure 1: UI of the sample

You can also refer to the sample here. 

Note

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