Bootstrap modal won't show gridview, i have no idea why? 
it won't firing the gridview did i need to put update panel for this to do the update? i have try through some solution but seen didn't work well.

Here my code aspx:

```
     <div id="Group" class="modal fade" role="dialog">
                      <div class="modal-dialog">
                        <div class="modal-content">
                          <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal"  ></button>
                            <h4 class="modal-title"></h4>
                          </div>
                           <div class="modal-body">
     <asp:GridView runat="server" ID="grdiview" AutoGenerateColumns="false">
                              <Columns>
                                  <asp:TemplateField>
                                      <ItemTemplate>
                                          <asp:CheckBox ID="gvMODALCHECK" runat="server" />
                                      </ItemTemplate>
                                  </asp:TemplateField>
                      <asp:BoundField HeaderText="text1" DataField="GROUP" />
                      <asp:BoundField HeaderText="text2" DataField="NME" />
                              </Columns>
                              </asp:GridView>
                       < /div>
                < /div>
          < /div>
    < /div>
 < /div>

```

code behind for gridview check through here has no problem:

```
protected void gridview_GETGROUP()
        {
            try
            {
                string sqlCONSTR = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;
                String sqlQUERY = "SELECT GROUP,NME FROM GROUP_MEMBER";
                SqlConnection sqlCONN = new SqlConnection(sqlCONSTR);
                SqlCommand sqlCMD = new SqlCommand(sqlQUERY, sqlCONN);
                SqlDataAdapter sqlADAP = new SqlDataAdapter(sqlCMD);
                DataTable dt = new DataTable();
                sqlADAP.Fill(dt);
                sqlCONN.Open();
                sqlCONN.Close();
                gridview.DataSource = dt;
                gridview.DataBind();

            }
            catch (Exception ex)
            {
                ClientScript.RegisterStartupScript(this.GetType(), "alert", Please Contact IT STAFF!!!')", true);
            }
        }

```