| Imports SystemCall addcolumntodropdownlist
    End SubImports System.Data
 Imports System.Data.SqlClient
 Partial Class _Default
 Inherits System.Web.UI.Page
 Dim mydts As New DataSet
 Dim myclasscnn As New ctlconnection
 Dim mytbname As String = "customers"
 
 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 Call loaddata
 Private Sub loaddata
        Dim mycmd As New SqlCommand
 mycmd = fnccmdcustomerlist(DropDownList1.Text, TextBox2.Text)
 mydts = myclasscnn.fncreaddata(mydts, mycmd, mytbname)
 End Sub
 Private Sub addcolumntodropdownlist
        For Each myClmn As DataColumn In mydts.Tables(mytbname).Columns
 DropDownList1.Items.Add(myClmn.ColumnName)
 Next
 End Sub
 
 Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
 Call loaddata
        GridView1.DataSource = mydts
 GridView1.DataMember = mytbname
 GridView1.DataBind
    End Sub
 
 Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged
 dim myrow as integer = gridview1.selectedindex
 dim grdvrow as gridviewrow = gridview1.rows(myrow)
 dim mylinkbutton as linkbutton = ctype(grdvrow.findcontrol("linkbutton1"),linkbutton)
 dim mycustomerid as string =mylinkbutton.text
 response.redirect("default2.aspx?customerid=" & mycustomerid)
 ' TextBox1.Text = Request.QueryString("customerid")
 End Sub
 End Class
 
 
 
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