how to get the selected row value in dataGridview

protected void rowwcommandname(object sender, GridViewCommandEventArgs e)
   {
       if (e.CommandName == "name of the command")
       {
           string[] DCdata = e.CommandArgument.ToString().Split(',');
<here you="" can="" play="" with="" the="" data="">
                    
       }
   }</here>

<ItemTemplate>
                                        <div style="float:left; margin:7px 0;">
                                            <asp:LinkButton ID="btnEmail" runat="server" Text="<%$Resources: Resource, btnEmail %>"
                                                CommandName="SendMail" CssClass="button" CommandArgument= '<%# Eval("DocumentCenterId") + "," + Eval("EmailId")  %>'
             meta:resourcekey="btnEmailResource1"
                                                /><div class="buttonEnding"></div>
                                                </div>
                                        </ItemTemplate>

foreach (DataGridViewRow dr in dataGridView1.SelectedRows)
            {
                foreach (DataGridViewCell dCell in dr.Cells)
                {
                   string sz= dCell.Value.ToString();
                }
            }