How To Reference A Text Box In An Insert Statement

    I am trying to take a value from at textbox and insert into a database. I think I need to convert the text to an integer - but I keep getting an error message saying I'm not allowed to use column names. Basically, I need to figure out how to take user input from these tet boxes and insert them into a database. Any ideas would be welcomed. the exact error is at the bottom the code.



Here is the code:

Imports System.Data
Imports System.Data.SqlClient
Partial Class County_ConversionTest
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim v1 As Integer
        Dim v2 As Integer
        'Dim v3 As Integer
        v1 = Integer.Parse(TextBox1.Text)
        v2 = Integer.Parse(TextBox2.Text)
        TextBox3.Text = (v1 + v2)

    End Sub

    Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim strconn As String = "Data Source=.SQLEXPRESS;AttachDbFilename=C:InetpubwwwrootHCBSApp_DataDivAging_Data.MDF;Integrated Security=True;Connect Timeout=30;User Instance=True"
        Dim cnnDivAging As SqlConnection = New SqlConnection(strconn)
        Dim v1 As Integer
        Dim v2 As Integer
        Dim v3 As Integer
        v1 = CInt(TextBox1.Text)
        v2 = CInt(TextBox2.Text)
        v3 = CInt(TextBox3.Text)


       
        Dim strsql As String = "INSERT INTO tblTest (Name, fv1,fv2,fv3)" + _
        "Values ('George',v1,v2,v3)"

        Dim cmdUpdates As SqlCommand = New SqlCommand(strSQL, cnnDivAging)
        cmdUpdates.Connection = cnnDivAging
        cnnDivAging.Open()
        cmdUpdates.CommandType = CommandType.Text
        cmdUpdates.ExecuteNonQuery()
        cnnDivAging.Close()
    End Sub
End Class

Here is the error message -



The name "v1" is not permitted in this context. Valid expressions are
constants, constant expressions, and (in some contexts) variables.
Column names are not permitted.