เรื่องมีอยู่ว่า

1. Import text file to table in database.   now is completed

2. If, like import next time. must be check candidate key form teble (item 1)

3. If, new import have cadidate key. Let show image im row of gridview.

---format data in text file-------

              "Id","Name","Lastname"

---gridview before import-----

______________________________________________________________

_select__ |____Duplicate______|___ ID___|___ Name____|___Lastname___|

    |_|          |       img visible=false    |-------         data new import         --------|

checkbox field select for choose row import

 
  Private Sub gvTemp_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvTemp.RowDataBoundIf e.Row.RowType = DataControlRowType.DataRow Then
 If DataBinder.Eval(e.Row.DataItem, "FDuplicate") = "D" Then
 DirectCast(e.Row.FindControl("imgDup"), Image).Visible = True
 End If
 End If
 
 End Sub