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Dynamically added text boxes disappears after page refresh

Posted By:      Posted Date: September 24, 2010    Points: 0   Category :ASP.Net

Dim objDatabase As New database
        Dim objAdapter As SqlDataAdapter
        Dim objDataset As New DataSet
        Dim objAdapter1 As SqlDataAdapter
        Dim objDataset1 As New DataSet
        Dim objAdapter2 As SqlDataAdapter
        Dim objDataset2 As New DataSet

        objAdapter = New SqlDataAdapter("SELECT first_name + ' ' + last_name as [Name],father_mobile_no as [Father Mob No],mother_mobile_no as [Mother Mob No] FROM student_data WHERE class='" & cmb_class.SelectedValue & "' and division = '" & cmb_division.SelectedValue & "' and school_id='" & Session("school_id") & "'", objDatabase.con)
        objAdapter.Fill(objDataset, 0)
        If objDataset.Tables(0).Rows.Count > 0 Then

            Dim dt_table As DataTable

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