.DataSource(source => All Rights Reserved. The problem is that, after creating a new schedule, dropdownlist datasource read method didn't work at all. { Jquery Dropdownlist example Declare input element with id and in the jquery document ready, the dropdown component can be initialized. I was looking for a way to update the dataSource of the DropDownList dynamically, without recreating the control again. The DropDownList datasource read method seems to work and, the new schedule is reflected in the DropDownList control. : Example Share Improve this answer Follow But when I add a second contact, the dropdownlist does not refresh. Max total file size - 20MB. source.Read(read => I also searched in telerik forums but couldn't find any related issues. Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. For example: I tried several examples in Kendo UI dropdownlist API documentation, but no luck at all. To try it out sign up for a free 30-day trial. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. Open the existing ASP.NET MVC 4 project that we created earlier (refer to the article CRUD Opertaion in Kendo Grid using Web API ). Kendo UI Dropdownlist basic example. When I click on the Manage Contacts button, I get a pop up which has a grid where I insert contacts. Using the straightforward data source bind rather than using kendo.data.DataSource fetch.then() callback function? ). .Name("ContactName") Open In Dojo <input id="dropdownlist" /> <script> $("#dropdownlist").kendoDropDownList( { dataSource: [ "Apples", "Oranges" ] }); var dataSource = new kendo.data.DataSource( { data: [ "Bananas", "Cherries" ] }); var dropdownlist = $("#dropdownlist").data("kendoDropDownList"); dropdownlist.setDataSource(dataSource); </script> Getting Started Demos The data source filters the data items client-side unless the data source serverFiltering option is set to true. Example - add a data item to the data source Edit Preview The control is referenced throughout the application therefore I just want to change the datasource. Is there a way to refresh the dropdown list when I click on the Edit button on the row or when I click on the dropdown list to select contacts? Changes of the data source will be reflected in the widget. 1. The code below shows the creation of data source, fetch data and, populates the dropdownlist with records. .ValuePrimitive(true) What seems go wrong in my dropdownlist configuration? Now the answer is: var dataSource = new kendo.data.DataSource ( { data: my_new_json_list }); var dropdownlist = $ ("#products").data ("kendoDropDownList"); dropdownlist.setDataSource (dataSource); Reference: https://docs.telerik.com/kendo-ui/api/javascript/ui/dropdownlist/methods/setdatasource All Telerik .NET tools and Kendo UI JavaScript components in one package. read.Action("GetVendorContacts", "VendorCont") Now enhanced with: Telerik and Kendo UI are part of Progress product portfolio. Max total file size - 20MB. .DataTextField("ContactName") Progress is the leading provider of application development and digital experience technologies. The code for the Contact Name editor template is as follows: @(Html.Kendo().DropDownList() Something like : Code below for posting new schedule. This is a migrated thread and some comments may be shown as answers. }) https://docs.telerik.com/kendo-ui/api/javascript/ui/dropdownlist/configuration/optionlabeltemplate. Telerik and Kendo UI are part of Progress product portfolio. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. To set new DataSource of an existing DropDownList please use the setDataSource method of the widget. Use the setDataSource method instead. 3. Finally the project structure will be as in Figure 1. I'm interested in the most efficient way to replace a dataSource for a named dropdownlist (ex: $("#DDL1"). The widget instance which fired the event. Currently it has been set to false. .Data("filterContactName"); Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. e.sender kendo.ui.DropDownList. 1 Answer Sorted by: 7 You need to initialize the kendo DropDownList only once and each time you want to refresh the data you should use the dataSource.data () method. Join us on our journey to create the world's most complete HTML 5 UI Framework -. Name the new model file (In my case, I made it as EmployeeDetails, and click Add. Right-click the Models folder, select Add -> ADO.NET Entity Data Model, or select Add->New Item. or is there lacking in the datasource config? Max total file size - 20MB. .CascadeFrom("Vendor") In case you would like to also change the dataTextField and dataValueField properties you should do that via setOptions method. .ServerFiltering(true); I have tried to refresh the dropdownlist using the BeforeEdit and Save events, but it did not work. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. I named it KendoDropDown.html. Also note that the dropdownlist requires the "Vendor" (another column in the grid) value to fetch the list to be populated in the dropdownlist. Progress is the leading provider of application development and digital experience technologies. Start Free Trial All Telerik .NET tools and Kendo UI JavaScript components in one package. I have noticed that theBeforeEdit event triggers when I click on the "Edit" button on the row (the grid edit mode is set to InLine) and theonEdit event triggers when I click on "Update". getSchedules (): void { const schedulesData = new kendo.data.DataSource ( { transport: { read: { url: "/./Schedules?entityName=someEntity", cache: false, dataType: "json", contentType: "application/json", type: "GET", DropDownList Fields datasource dataSource kendo.data.DataSource The data source of the widget. Do I need to set AutoBind(true) for the dropdownlist? In the "Add New Item" Window, select data in the left pane and ADO.NET Entity Data Model from the center pane. The Kendo UI for jQuery DropDownList lets the user choose one option from a list of choices. I have also noticed that the dropdownlist refreshes when I add a new contact, then edit the row. All Rights Reserved. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. The filter descriptor that will be used to filter the data source. Looks like the Kendo dropdownlist has changed. The code below shows the creation of data source, fetch data and, populates the dropdownlist with records. http://docs.kendoui.com/api/web/dropdownlist#methods-setDataSource In case you would like to also change the dataTextField and dataValueField properties you should do that via setOptions method. Create a REST full service to Insert a Record in SQL Table. //.AutoBind(false) e.filter Object. Step 2 Is there a way to access the dropdownlist in theBeforeEdit event? Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. All Telerik .NET tools and Kendo UI JavaScript components in one package. Open In Dojo <input id="dropdownlist" /> <script> $("#dropdownlist").kendoDropDownList( { dataSource: [ { id: 1, name: "Apples" }, { id: 2, name: "Oranges" } ], dataTextField: "name", dataValueField: "id", index: 1 }); var dropdownlist = $("#dropdownlist").data("kendoDropDownList"); dropdownlist.refresh(); </script> Getting Started Demos Community Now enhanced with: I have a dropdownlist control which list all records fetched from a remote data source. }) Example - subscribe to the "filtering" event during initialization The current demo of Kendo UI for jQuery DropDownList demonstrates an . See Trademarks for appropriate markings. Open In Dojo <input id="dropdownlist" /> <script> $("#dropdownlist").kendoDropDownList( { dataSource: { data: ["One", "Two"] } }); </script> Example - set dataSource as a JavaScript array Edit Preview Open In Dojo <input id="dropdownlist" /> <script> var data = ["One", "Two"]; $("#dropdownlist").kendoDropDownList( { dataSource: data }); </script> Datasource Ajax example to bind the remote data. Right-click on the project root and add a new HTML page. http://docs.kendoui.com/api/web/dropdownlist#methods-setDataSource. The code for the Contact Name editor template is as follows: @ (Html.Kendo ().DropDownList () .Name ("ContactName") .ValuePrimitive (true) .DataValueField ("ContactName") .DataTextField ("ContactName") .OptionLabel (" ") .DataSource (source => { source.Read (read => { read.Action ("GetVendorContacts", "VendorCont") .Data ("filterContactName"); }) I follow your suggested approach (to initialize DropDownList with the datasource) and, it worked. As such, when a user creates a new schedule, the dropdownlist control should append the newly added schedule without doing a page refresh. I was wondering what's the difference between the two approach? This is a migrated thread and some comments may be shown as answers. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. You can create the two different DataSources outside of the functions, and then in the functions bodies use the DropDownList setDataSource () method to switch between the two dataSources, and the setOptions () method to change the other options like dataTextField and dataValueField, e.g. Telerik and Kendo UI are part of Progress product portfolio. All Rights Reserved. { Progress is the leading provider of application development and digital experience technologies. Assigning a new data source would have no effect. The DropDownList Component is part of Kendo UI for Angular, a professional grade UI library with 100+ components for building modern and feature-rich applications. The dropdown widget can be initialized in many ways, I am going to show you the popular ways. See Trademarks for appropriate markings. If this is correct, then how I can refresh the dropdownlist? It provides flexible data binding, virtualization, cascading lists, appearance customization through templates, events, validation, accessibility, RTL support and keyboard navigation. After inserting/updating contacts and closing the popup, the Contact Name dropdownlist should display the new contacts which have just been inserted when I click on Edit for that particular row. See Trademarks for appropriate markings. configured via the datasource option. .OptionLabel(" ") Unfortunately theonEdit event does not solve my issue. This is very urgent and any help will be greatly appreciated. It is a richer version of the <select> element and supports data binding, filtering, templates, and default items. Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. .DataValueField("ContactName") Take this code from your DropDownList example: <input id="dropdownlist" /> <script type="text/javascript"> $ (document).ready (function () { Now enhanced with: I have a dropdownlist for Contact Name in a kendo grid as shown in the attachment. Is it because Vendor is not being changed that the dropdownlist is not refreshing? Datatextfield and dataValueField properties you should do that via setOptions method I can refresh the dropdownlist theBeforeEdit! 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