Hi all, I want to display all the data in gridview which i am inserting in runtime. For that i have written code but getting this error.

"Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition."

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        BindData();
    }
}

public void BindData()
{
     string str = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString.ToString();
     SqlConnection con = new SqlConnection(str);
     SqlDataAdapter da = new SqlDataAdapter("select * from Items where ItemId='" + TxtItemId.Text + "'", con);
     DataSet ds = new DataSet();
     da.Fill(ds,"Items");
     GridView1.DataSource = ds;         
     GridView1.DataBind();
}

Pls modify my code where is my mistake.

Thanks, Sumit