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Control datepicker inside a FormView inside an UpdatePanel

Every time I try to save the value of the datepicker the value comes out null, I know that this happens to be inside an updatepanel, I have put the formview as AsyncPostBackTrigger, but still if I select the value. I also put the code from the server in C # but it does not work. I take the data from a SqlDatasource.


 protected void Persona_estudiosSqlDataSource_Inserting(object sender, SqlDataSourceCommandEventArgs e)
            e.Command.Parameters[0].Value = Id_personaHiddenField.Value;
            e.Command.Parameters[1].Value = ((DropDownList)CentroEstudiosFormView.FindControl("CentroestudiosDropDownList")).SelectedValue;
            e.Command.Parameters[2].Value = ((Syncfusion.JavaScript.Web.DatePicker)CentroEstudiosFormView.FindControl("DesdeDatePicker")).Value;
            e.Command.Parameters[3].Value = ((Syncfusion.JavaScript.Web.DatePicker)CentroEstudiosFormView.FindControl("HastaDatePicker")).Value;
        catch (Exception ex)

            ErrorMessage.Text = "Insertar centro de estudios: " + ex.Message;

2 Replies

RA Roger Alberto February 7, 2019 11:49 AM

Already solved. I put the code below. Now I'm going to test with the other controls (combox, Dropdownlist, ETC). :)

protected void Page_Load(object sender, EventArgs e)
        if (!IsPostBack)

            Syncfusion.JavaScript.Web.DatePicker DesdeCE_dtp = ((Syncfusion.JavaScript.Web.DatePicker)CentroEstudiosFormView.FindControl("DesdeDatePicker"));
            Syncfusion.JavaScript.Web.DatePicker hastaCE_dtp = ((Syncfusion.JavaScript.Web.DatePicker)CentroEstudiosFormView.FindControl("HastaDatePicker"));

PO Prince Oliver Syncfusion Team February 8, 2019 12:23 AM

Hi Roger, 

Thank you for your update. 

We are glad the issue is resolved in your end. Please let us know, if you face any issues. 


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