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add a field at run time to a table in ado.net
Imports System.Data.SqlClientPublic Class Form1Dim cn As New SqlConnection("server=.;database=atten;uid=sa;pwd=sa;")Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click'savecn.Open()Dim query, query1, query2 As StringDim regnum As Integerquery1 = "select max(reg) from sdetail"Dim cmd1 As New SqlCommand(query1, cn)regnum = cmd1.ExecuteScalarTextBox1.Text...