how to Refresh ComboBox ?

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amerta

Member

1 Points

52 Posts

how to Refresh ComboBox ?

Jul 10, 2018 11:40 AM|amerta|LINK

i need help please , i use a devexpress combobox mvc

   @Html.DevExpress().ComboBox(
                                                                settings =>
                                                                {
                                                                    settings.Name = "Contratid";


                                                                    settings.Properties.DropDownWidth = 600;
                                                                 
                                                                    settings.Properties.DropDownStyle = DropDownStyle.DropDown;
                                                                    settings.ShowModelErrors = false;
                                                                    settings.Properties.ValidationSettings.ValidateOnLeave = false;
                                                                    settings.Properties.ValidationSettings.Display = Display.None;
                                                                    settings.Properties.CallbackPageSize = 15;
                                                           
                                                                    settings.Properties.TextField = "ReferenceDossier";
                                                                    settings.Properties.TextFormatString = "{0}";
                                                                    settings.Properties.ValueField = "idDossier";
                                                                    settings.Properties.ValueType = typeof(decimal);
                                                                  
                                                                    settings.Properties.ClientSideEvents.SelectedIndexChanged = "function(s, e) { change(s); }";
                                                                    settings.Properties.Columns.Add("ReferenceDossier", "Réference", 40);
                                                                    settings.Properties.Columns.Add("Libelle", "Libelle", 40);
                                                                   
                                                                    settings.Height = 30;
                                                                    settings.Width = System.Web.UI.WebControls.Unit.Percentage(100);
                                                                }
                                                            ).BindList(Session["Contactid"]).GetHtml()

can i refresh data of combobox with jquery and ajax ?

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Dave_Winches...

Contributor

2263 Points

837 Posts

Re: how to Refresh ComboBox ?

Jul 10, 2018 01:56 PM|Dave_Winchester|LINK

Hi,

From what I remember you would use a callback mechanism. To accomplish this task, do the following:

- Define the ComboBoxSettings.CallbackRouteValues property to provide ComboBox with actual data;
- Call the ASPxClientComboBox.PerformCallback method to perform a round-trip to the server.

There is a published similar solution in this example:

MVC ComboBox Extension - Cascading Combo Boxes

Hope this helps.

Regards,

D

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