Question

I have a GridView inside a UpdatePanel. In some cases, I have to show different columns in this GridView so I need to change the BoundFields that are specified in my aspx.

How can I change the BoundFields to make the GridView be filled for a different query and different fields ?

ASPX

<cc1:GridView ID="grdImoveis" CssClass="StyleGrid" Width="100%" runat="server" ShowHeader="false"
            AutoGenerateColumns="False" DataSourceID="dsGrid" BorderWidth="0px" GridLines="None"
            AllowPaging="True" EnableModelValidation="True" >
            <AlternatingRowStyle BackColor="White" CssClass="EstiloDalinhaAlternativaGrid" HorizontalAlign="Center" />
            <RowStyle CssClass="EstiloDalinhaGrid" HorizontalAlign="Center" />
            <Columns>
                <asp:BoundField HeaderText="Nome" DataField="NomeCompleto" />
                <asp:BoundField HeaderText="Cargo" DataField="DescricaoCargo1" />
                <asp:BoundField HeaderText="Data Cadastro" DataField="DataHora" />
                <asp:TemplateField ControlStyle-CssClass="acoes_lista_imovel" HeaderText="Curso">
                    <ItemTemplate>
                        <div class="acoes_lista_imovel">
                            <%# montaIcones(Eval("Usuario_Id").ToString())%>
                        </div>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </cc1:GridView>

CODE BEHIND

protected void btnSelecionarData_OnClick(object sender, EventArgs e)
    {            
        string select = string.Empty;
        select += "SELECT San_Credenciada.Apelido, San_Usuario.NomeCompleto, San_Usuario.Usuario_Id, San_Usuario.DescricaoCargo1, "
            + "CONVERT(varchar, San_Usuario.DataHora, 103) AS DataHora, San_UsuarioCurso.Cv, San_UsuarioCurso.Institucional, "
            + "San_UsuarioCurso.Copon, San_UsuarioCurso.ManualCaptacaoESistema, San_UsuarioCurso.PosturaProfissional, San_UsuarioCurso.Certificado "
            + "FROM San_Usuario "
            + "JOIN San_Credenciada "
            + "ON San_Usuario.Credenciada_Id = San_Credenciada.Credenciada_Id "
            + "JOIN San_UsuarioCurso "
            + "ON San_Usuario.Usuario_Id = San_UsuarioCurso.Usuario_Id "
            + "WHERE San_Usuario.Provisorio = 1 "
            + "AND San_Usuario.Excluido = 0 "
            + "AND San_UsuarioCurso.DataCurso = '" + this.DtBusca.Value.ToString() +"' "
            + "GROUP BY San_Credenciada.Apelido, San_Usuario.NomeCompleto, San_Usuario.Usuario_Id, "
            + "San_Usuario.DescricaoCargo1, San_Usuario.DataHora, San_UsuarioCurso.Cv, San_UsuarioCurso.Institucional, "
            + "San_UsuarioCurso.Copon, San_UsuarioCurso.ManualCaptacaoESistema, San_UsuarioCurso.PosturaProfissional, San_UsuarioCurso.Certificado "
            + "ORDER BY San_Usuario.DataHora ASC ";

        dsGrid.ConnectionString = c.Con;
        dsGrid.SelectCommand = select;
        dsGrid.Dispose();

Answer 1

If I understand your query correctly, you want to change columns. A simple solution for this is that do not specify fields in your aspx page, just set AutoGenrateColumns = True in your grid view decleratoin
Your grid should look like

<asp:GridView ID="gv" runat="server" AutoGenrateColumns="True" />

// Now in your code behind just specify its DataSource property it will fill up with your desired columns.
// Your query should contain only those columns which you want to show