How to refresh form after selecting value from combobox - sql

Question

I would like to know if it is possible to refresh the current windows form I am at after selecting another value from the combo box in order to display the details of that item onto several other textboxes?
So my table looks like
table name : program
program_id program_name program_desc
1 T1 desc1
This is the code i am using atm
Dim connection As New SqlClient.SqlConnection
connection.ConnectionString = "pathway"
Dim dr As SqlDataReader
Dim prognamedesc As String
Dim filetypetxt As String
Dim prognamecombo As String
Dim filetypecombo1 As String
Dim command As New SqlCommand
Dim querycommand As New SqlCommand
connection.Open()
'THIS SECTION LOADS DATA FROM THE TABLES'
Try
command.Connection = connection
command.CommandType = CommandType.Text
command.CommandText = "select program_name,filetype from program order by program_name; select * from filetype"
querycommand.Connection = connection
querycommand.CommandType = CommandType.Text
querycommand.CommandText = "select program_name,program_desc , filetype from program where program_name like" & FiletypeComboBox1.SelectedItem & ""
dr = command.ExecuteReader
While dr.Read()
prognamecombo = dr(0)
Program_nameComboBox.Items.Add(prognamecombo)
End While
dr.NextResult()
While dr.Read()
filetypecombo1 = dr(0)
FiletypeComboBox1.Items.Add(filetypecombo1)
FiletypeComboBox1.SelectedItem = filetypecombo1
End While
dr.NextResult()
While dr.Read()
filetypetxt = dr(0)
FiletypeLabel1.Text = filetypetxt
End While
dr.NextResult()
While dr.Read()
prognamedesc = dr(0)
Program_descTextBox.Text = prognamedesc
End While
Catch ex As Exception
MsgBox(ex.Message)
End Try
connection.Close()
I was wondering if this is doable using the current code?

Answer 1

To implement this you have to do two things, First put all your code inside a method and call it something like RefreshForm()
public void RefreshForm()
{
// your code and binding goes here
}
The second step is by using selected index changed event over combobox you just call the method that includes all your binding code.