How Do I Bind Multiple Tables In A Griedview Using Different Buttons...

OK. Try doint something like this.

protected void Button1_Click(object sender, EventArgs e)
{
   gridView1.DataSource = ds.Tables[0];
}
protected void Button2_Click(object sender, EventArgs e)
{
   gridView1.DataSource = ds.Tables[1];
}
protected void Button1_Click(object sender, EventArgs e)
{
   gridView1.DataSource = ds.Tables[2];
}

using System.Data.SqlClient;
using System.Data;




public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
string con_str = @"Data Source=ABC;Initial Catalog=DBname;Integrated Security=True";

protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(con_str);
SqlDataAdapter ad1;
DataSet ds = new DataSet();
ad1 = new SqlDataAdapter("select * from table1", con);
ad1.Fill(ds, "0");
GridView1.DataSource = ds.Tables["0"];
GridView1.DataBind();
GridView1.Visible = true;
}

protected void Button2_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(con_str);
SqlDataAdapter ad1;
DataSet ds = new DataSet();
ad1 = new SqlDataAdapter("select * from table2", con);
ad1.Fill(ds, "1");
GridView1.DataSource = ds.Tables["1"];
GridView1.DataBind();
GridView1.Visible = true;
}
}
}