Delete rows in Gridview

Question

hi, I am having a problem with deleting gridview rows. I am populating my gridview by selecting value in a dropdownlist then by clicking the add button, value will be added in my gridview, here is my code:

in my aspx:

<asp:GridView ID="GridView1" runat="server" 

                CssClass="mGrid" EmptyDataText = "There are no records to display">

                <Columns>

                    <asp:TemplateField ItemStyle-Width="10">

            <HeaderTemplate>

 

            </HeaderTemplate>

            <ItemTemplate>

                <asp:CheckBox ID="CheckBox1" runat="server"/>

            </ItemTemplate>

        </asp:TemplateField>

 

                </Columns>

</asp:GridView>

in my code behind:

protected void Page_Load(object sender, EventArgs e)

    {

      if (!IsPostBack)

        {

            DataSet ds = new DataSet();

            DataTable dt = new DataTable();

            DataColumn dc = new DataColumn("Id");

            DataColumn dc1 = new DataColumn("Name");

            //DataColumn dc2 = new DataColumn("Id");

 

            dt.Columns.Add(dc);

            dt.Columns.Add(dc1);

           // dt.Columns.Add(dc2);

            ds.Tables.Add(dt);

            Session["data"] = ds;

            GridView1.DataBind();

        }

    }

 

protected void btnSave_Click(object sender, EventArgs e)

    {

        SqlConnection con = new SqlConnection("Data Source=GATE-PC\\SQLEXPRESS;Initial Catalog=dbProfile;Integrated Security=True");

        con.Open();

 

        foreach (GridViewRow row in GridView1.Rows)

        {

            SqlCommand cmdd = new SqlCommand("Insert into Profile (Id, profile_Id)VALUES(@id, @pid)", con); 

            cmdd.CommandType = System.Data.CommandType.Text;

            cmdd.Parameters.AddWithValue("@id", row.Cells[1].Text);

            cmdd.Parameters.AddWithValue("@pid", txtbid.Text);

            cmdd.ExecuteNonQuery();

        }

    }

 

protected void btnAdd_Click(object sender, EventArgs e)

    {

        DataSet ds = (DataSet)Session["data"];

        DataRow dr = ds.Tables[0].NewRow();

        dr[0] = DropDownList1.Text.Trim();

        dr[1] = DropDownList1.SelectedItem;

        //dr[2] = txtId.Text.Trim();

        ds.Tables[0].Rows.Add(dr);

        GridView1.DataSource = ds;

        GridView1.DataBind();

    }

Now, I am trying to remove checked rows on my gridview with this code:

protected void btnRemove_Click(object sender, EventArgs e)

    {

        ArrayList del = new ArrayList();

 

        foreach (GridViewRow row in GridView1.Rows)

        {

            if (row.RowType == DataControlRowType.DataRow)

            {

                CheckBox chkDelete = (CheckBox)row.Cells[0].FindControl("CheckBox1");

 

                if (chkDelete != null)

                {

                    if (chkDelete.Checked)

                    {

 

                        string id = row.Cells[1].Text;

                        del.Add(productId);

                    }

                }

            }

        }

        GridView1.DataBind();

    }

With the btnRemove codes above, If I clicked it, it'll remove all values in my gridview even the unchecked rows, what I want is that just the checked rows not all. And are there any other simple way of removing rows in a gridview than using checkbox? I am using c# with asp.net. Thanks in advance and God Bless.