protected void Button1_Click(object sender, EventArgs e)
{
string key = TextBox1.Text;
bookBLL bl = new bookBLL();
if (RadioButton1.Checked)
GridView1.DataSource = bl.searchBook(1, key);
else
if(RadioButton2.Checked)
GridView1.DataSource = bl.searchBook(2, key);
else
if(RadioButton3.Checked)
GridView1.DataSource = bl.searchBook(3, key);
else
if(RadioButton4.Checked)
GridView1.DataSource = bl.searchBook(4, key);
GridView1.DataBind();
}
