title: passing any control as parameter in vb.net function
body: <p>I have a following vb.net function as below in which i am passing a checkbox control name as parameter.Code is here</p>
  
  <pre><code>Public Function emaildata(ByVal grdv As GridView, ByVal ctrl As String, ByVal celpos As Integer) As GridView
          Dim comm As OleDbCommand = New OleDbCommand()
          Dim bpv As String = ""
          Dim gv As New GridView
          For Each gvrow As GridViewRow In grdv.Rows
              Dim chkbx As CheckBox = CType(gvrow.FindControl(ctrl), CheckBox)
              If chkbx.Checked Then
                  If bpv &lt;&gt; "" Then
                      bpv += ","
                  End If
                  bpv += gvrow.Cells(celpos).Text
                  comm.CommandText = "SELECT chq_num Cheque#,to_char(bpv_amt,'9,999,999,999') Amount,vch_nar Narration,bnf_nam PartyName,acc_des Bank from  CHECK_DATA where bpv_num in(" &amp; bpv.ToString() &amp; ") and BPV_DTE=to_date('" &amp; TreeView2.SelectedValue &amp; "')"
                  comm.CommandType = CommandType.Text
                  comm.Connection = con
                  Dim da As New OleDbDataAdapter(comm)
                  Dim ds As New DataSet
                  da.Fill(ds)
                  gv.DataSource = ds
                  gv.DataBind()
              End If
          Next
          Return gv
      End Function
  </code></pre>
  
  <p>Problem is that i have to use same function with radiobutton also with text box and i don't want to write separate function for all type of controls.I want to detect the control as parameter and.For Example if i pass text box then function should behave like a text box and if radio then radion behaviour and if checkbox then same behaviour for this.I have these three control to pass the function and i want make a automatic detection method for these controls</p>