i have DB name mydb and DB contain table "Notes"
Notes have these columns (Name,Data,Department,Course, Instructer)
I also have three dropdownlists
1) Department
2) Course
3) Instructer
i want to show only those lectures in GridView that Selected from Department,Course and Instructer
my page code is given bellow........
Asp.net
<%@ Page Title="" Language="C#" MasterPageFile="~/Student.master" AutoEventWireup="true" CodeFile="Downlaod.aspx.cs" Inherits="Default2" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" Runat= ...
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