[CLOSED] file download on the update

[miltonfoti]

I have a file repository where there hyperlinkcolumns with dataindexhref . I update the file , the URL remains the same , with the same filename, but downloads the old file . That would be cache problem ?

        <ext:FormPanel runat="server" AutoScroll="true" Frame="true">
            <Items>
                <%--CONTEÚDO PÁGINA--%>
                <ext:GridPanel runat="server"
                               AutoScroll="true"
                               Margin="10"
                               ID="gridRelatoriosGerenciais"
                               Frame="true">            
                    <Store>
                        <ext:Store runat="server" ID="storeRelatoriosGerenciais" IDMode="Static" AutoLoad="true">
                            <Model>
                                <ext:Model runat="server">
                                    <Fields>
                                        <ext:ModelField Name="AREA" Type="String" />
                                        <ext:ModelField Name="VE_NOME" Type="String" />
                                        <ext:ModelField Name="VE_OBJETIVO" Type="String" />
                                        <ext:ModelField Name="VE_VERSAO" Type="String" />
                                        <ext:ModelField Name="VE_DTALTER" Type="Date" />
                                        <ext:ModelField Name="VE_ARQUIVO" Type="String" />
                                    </Fields>
                                </ext:Model>
                            </Model>
                        </ext:Store>
                    </Store>            
                    <ColumnModel>
                        <Items>
                            <ext:Column runat="server"
                                        Flex="2"
                                        Text="AREA"
                                        Hideable="false"
                                        hidden="false"
                                        DataIndex="AREA">
                                 <Filter>
                                    <ext:StringFilter />
                                </Filter>                                
                            </ext:Column>
                            <ext:HyperlinkColumn runat="server"
                                                 DataIndex="VE_NOME"
                                                 DataIndexHref="VE_ARQUIVO"
                                                 width="250"
                                                 Text="NOME"
                                                  Hideable="false"
                                                  Hidden="false"
                                                HrefPattern="{href}"
                                                
                                                   >
                                <Filter>
                                    <ext:StringFilter />
                                </Filter>

                            </ext:HyperlinkColumn>                          
                             <ext:Column runat="server"
                                        Flex="6"
                                        Text="OBJETIVO"
                                        Hideable="false"
                                        Hidden="false"
                                        DataIndex="VE_OBJETIVO">
                                 <Filter>
                                    <ext:StringFilter />
                                </Filter>
                            </ext:Column>

                            <ext:Column runat="server"
                                        width="50"
                                        Text="VERSÃO"
                                        Hideable="false"
                                        Hidden="false"
                                        DataIndex="VE_VERSAO">

                            </ext:Column>

                            <ext:Column runat="server"
                                        width="120"
                                        Text="ULTIMA ATUALIZAÇÃO"
                                        Hideable="false"
                                        Hidden="false"
                                        DataIndex="VE_DTALTER">
                            </ext:Column>     
                           </Items>
                   </ColumnModel>
                               <Plugins>
                                 <ext:GridFilters runat="server" />
                             </Plugins>
                </ext:GridPanel>
            </Items>
        </ext:FormPanel>

public partial class NOVO_RelatoriosGerenciais : System.Web.UI.Page
{
    public void Page_Load(object sender, EventArgs e)
    {
        if (!X.IsAjaxRequest)
        {
            ResourceManager resourceManager = (ResourceManager)this.Master.FindControl("resourceManager");
            this.retornaDados();
            
        }
    }

    public void retornaDados()
    {
        DataTable dt = new DataTable();

        SqlCommand comando = new SqlCommand();
        comando.CommandType = CommandType.StoredProcedure;
        comando.CommandText = "Portal.dbo.rel_RelatoriosGerenciais";

        dt = comando.BuscarDataTable();

        this.storeRelatoriosGerenciais.DataSource = dt;
        this.storeRelatoriosGerenciais.DataBind();

        // return dt;

    }

    [DirectMethod]
    public void onClickButton(object sender, DirectEventArgs e)
    {
        string url = e.ExtraParams["id"];
      
        Response.Clear();
        Response.AddHeader("content-disposition", url);      
        Response.ContentType = "application/octet-stream";
        Response.End();
    }
}

[miltonfoti]

any suggestions ?

[Daniil]

Hi @miltonfoti,

Being a premium member, please ask technical support questions on the Premium forums. Otherwise we might miss your question.

Yes, it definitely looks like a cache problem. I would recommend to try a cache buster for the URL.

[miltonfoti]

I thought I was in premiun forum , sorry .


You could give me an example of cache buster?

tks

[Daniil]

Please just add something unique to the end of URL. In JavaScript it could look:

url + "?" + new Date().getTime()