// Refresh the city dropdown Here, we need to do something similar when a state is deselected. all kendo controls have a rich client side API. Don't worry about the details of this code yet- we are going to cover this in detail in our next article- just note what the purpose of this code is. // Fetch the data from the cityDs Kendo datasource. To remove all of the selected options in the Kendo MultiSelect, simply use the following code: This multi-select is dependent upon the chosen values in the country dropdown and the state multi-select. $("#selectedCity1").val(this.value()); group: { field: "state" } // Function to enable the city dropdown when a state does not exist for a selected country. You are not limited to grouping the data by the dropdown value or the label- you can use any field in the JSON that is returned by the server. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. }//..if (id != '') { How do you remove all the options of a select box and then add one option and select it with jQuery? } contentType: "application/json; charset=utf-8", // Note: when posting json via the request body to a coldfusion page, we must use this content type or we will get a 'IllegalArgumentException' on the ColdFusion processing page. See Trademarks for appropriate markings. var cityDropdown = $("#cityDropdown1").data("kendoMultiSelect"); } Important: The widget will clear the applied filter if a new value is set. // Enable the state dropdown In this example, we will demonstrate how to create cascading menus' with Kendo MultiSelects. stateDropdown1.enable(); In this example, even though we are using a MultiSelect here instead of a DropDownList, the Kendo data source of the state dropdown is identical to the DropDownList state data source in our previous article.The only difference here is that in this example, the data-sources change method is used on rare occasions to enable and populate the cities dropdown when there . var cityDs = cityDropdown.dataSource; By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. .select() is not a method in version 2013.1.319 of KendoUI. // Enable the button The state multi-select dropdown is quite similar to the state dropdown-list, but has a few changes that I will note. Here, we need to use the deselect event to determine if any cities should be removed if the user deselects a given state. There are some countries that do not have states. change: onCountryChange1, Use the drop-down widgets onChange method to: Capture and store the user's selection into a hidden form field. -------------------------------- The only difference here is that in this example, the data-sources change method is used on rare occasions to enable and populate the cities dropdown when there is no state. var data = this.data(); We can also use the read method for (var i = 0; i < cityData.length; i++) { var cityIdList = []; cache: false, Here is the code: To set single value: required.value ("Laura Fuller") To set multiple value: type: "POST" Find centralized, trusted content and collaborate around the technologies you use most. // The function allows the url to become dynamic to append additional arguements. transport: { var result = 0; MultiSelect Overview. 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. Like the rest of the posts in this series, we will be using ColdFusion on the server side, however, it should be easily understood if you use a different server-side language, and you should be able to follow along. In our last cascading dropdown article, we reverted all of the child dropdowns to the initial value when a parent dropdown was changed (see the 'stateDropdown.select(0)' line at the very end of the code example of our previous Initializing the second state dropdown article). // Now enable the city dropdown list. if ( value == list[i] ) { type: "POST" This event is fired every time a user removes one of the multi-select elements that they have previously chosen. The MultiSelect displays a list of options and allows multiple selections from this list. Kendo UI for jQuery . if (!data.length){ Kendo UI UI for jQuery UI for Angular UI for React . 5 Answers Sorted by: 4 You can also assign the array, returned from the value () method, directly to the variable, e.g. Now if you want to append any thing to already selected list, you can do what @OnaBai has show his snippet. All Telerik .NET tools and Kendo UI JavaScript components in one package. In this case it would be cityDs. How to set data values on Kendo Multi Select? Thanks for contributing an answer to Stack Overflow! This function is fundamentally the same as city dropDownList that we have previously covered, however, the string kendoDropDownList is replaced with kendoMultiSelect, and optionLabel is replaced with placeHolder. We are also grouping the data by the state name using group: { field: "state" }. change: onStateChange, This step is completely optional. template: '
#: data.name #', For example, let's say a user selects the state of New York and California- and selects the city of New York and Los Angeles. This could affect MVVM value binding. There are a few differences- we are substituting the string kendoMultiSelect for kendoDropdownList, using placeHolder instead of optionLabel for the hint. If initial items are lost in attempt to set new values, probably the widget is filtered by the end user, but no value has been selected. Important: This method does not trigger change event. One of the main differences is that since the user can select multiple states with the multi-select instead of just one when using the drop-down list, the ColdFusion logic on the server side must change to allow for multiple states to be passed in. // Determine what was just deselected enable: false When there are scores of cities for each state, like in this example, you will have to scroll quite a bit if the state is not the first entry in the list. // ------------ onChange Event ------------ cache: false, This ColdFusion function takes these comma-separated values and validates the list using the justNumericList custom function to ensure that the values are numeric and do not have any empty values. ----------- var cityDs = new kendo.data.DataSource({ // If the user selected a value, enable and refresh the next dropdown list // Refresh the city dropdown if (cityStateId != deselectedStateId){ // Get the cityId // Deselect event to remove cities if the parent state was removed by the user });//var kendoMultiSelect Why does it matter that a group of January 6 rioters went to Olive Garden for dinner after the riot? : var ms = $ ("#multiselect").kendoMultiSelect ( { value: ["1", "2"] }).data ('kendoMultiSelect'); var selectedItems = ms.value (); console.log (selectedItems); // ["1", "2"] Share Improve this answer Follow To clear the value, pass an empty array. 2022 Moderator Election Q&A Question Collection. This would negatively impact the performance of the UI and potentially crash the browser. // Get the Kendo button at the end of the interface EDIT If you want to add to current selected values then do: NOTE: For some sort of reason you cannot reuse selected array for setting new values, so you should create a new one. // Inspect the transformed JSON JavaScript object from the datasource to determine if we should eliminate certain cities that belonged to the deselected state or validate the data and perform any additional logic. });//var cityDs }//change: function() {.. How many characters/pages could WordStar hold on a typical CP/M machine? var countryDropdown1 = $("#countryDropdown1").kendoDropDownList({ }).data("kendoDropDownList");//var countryDropdown1 We are not using the Kendo DropDownList's select argument to set the default value of the Kendo MultiSelect when changes are made to the parent dropdowns. var cityButton = $("#cityButton1").data("kendoButton"); The data sources belonging to the dependent dropdowns will pass the necessary values in the hidden form fields to the remote end-point. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. cache: false, This validation step is necessary as the database query will fail if there are empty or non-numeric values. }//..for (var i = 0; i < cityIdList.length; i++) dataType: "json", Initialize the dropdowns as you normally would- but add an onChange method. The best way to understand what is going on is to interact with the demonstration at the top of this article. cityButton.enable(true); Now coming to your problem - here is my solution: Now in order to set the selected values for the select box, you just have to use the value() method. ---------- Here we have 3 hidden form fields: selectedCountry, selectedState, and the selectedCity. // Note: in the cascading dropdown example, we are using the select event for the state dropdown to set the option to the default 'Select' placeholder (stateDropdown1.select(0)). When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. // Country flag data.length){.. }).data("kendoMultiSelect");//var stateDropdown1 @Rodney, for some sort of reason you cannot reuse the original array for setting new values, so you should do. Gregory's Approach to handle cascading dropdowns: The first dropdown is a Kendo DropDownList widget; I could have made it a multi-select, but the city list is already quite long even when a unique state is selected. This function is used to perform clean-up operations when a state is deselected from the state multi-select. dataType: "json", filter: "contains", This example has some very minor differences from the first state multi-select. }//read.. dataSource: stateDs1, },//transport.., I have the following script: You can use value() method for setting the values. As we previously discussed in our prior article, every widget supports a certain set of events. return result; This dropdown list contains the flags of each country, if you are interested in how to accomplish this please see Adding the Country Flag to the DropDownList. // Save the id in a hiden form in order to get at it in the next dropdown // ------------ onDeselect Event ------------ // First state dropdown. Components / Editors / MultiSelect. cityIdList.push(cityId); dataSource: cityDs This will group the data by the state in the dropdown. This question is locked. function onStateChange(e){ enable: false, // Note: the dataValueField and dataTextField are available in this struct // Get the next dropdown list. }//..if (id != '') { I have a JSON array in jsonObj(variable name), like for example: Join us on our journey to create the world's most complete HTML 5 UI Framework -. // Note: the select method does not exist for the multiSelect All of these hidden fields are populated by the widget's respective onChange events. The kendo multiselect is in a Kendo Window.What I wanted is if I had "Name" in the "key" portion, then just pick the "values" part and place it in the multiSelect just like the way you said, multiselect.value (jsonObj.values); So, I guess I am not wrong about how to set the values in multiSelect. // Create the onChange method that will create the next dropdown list Often, an event may be unique to a particular widget, such as the deselect event here with the Kendo MultiSelect. Here we are setting the the datasource using dropDownVarName.datasource. How to set data values on Kendo Multi Select? - Stack Overflow // ---------- Country Datasource. var cityDropdown = $("#cityDropdown1").data("kendoMultiSelect"); This is nearly identical to the state drop-down list example in our previous article. var id = this.value(); Asking for help, clarification, or responding to other answers. // Set a var for the city dropdown list. filter: "contains", list = list.split(delimiter); It was just when I updated the selection it was causing me issues. if (id != '') { //Testing carriage: alert('New cityIdList' + cityIdList); This is fired everytime there is a change to the state datasource Make a wide rectangle out of T-Pipes without loops. cityButton.enable(true); All Rights Reserved. This is always a factor when using code inside of a document ready block. However, we will leave the city of Los Angeles as the state of California was not deselected. dataTextField: "name", // Now get a reference to the city dropdown datasource. type: "POST" ----------- transport: { url: "/blog/demo/WorldCountries.cfc?method=getCountries", // The cfc component which processes the query and returns a json string. We don't need to pass multiple values as the parent country dropdown is a Kendo DropDownList and not a MultiSelect. How to add pre-populated Data to kendo-UI components (multi-select, text, etc)? Once the query has been made, the ColdFusion Query Object will be transformed into JSON using the convertCfQuery2JsonStruct method found in the CFJson component. dataValueField: "id", function listFind(list, value, delimiter) { The Kendo DataSource takes the values from the hidden selectedState form field and passes the comma-separated list to the getCitiesByStateIdList method. Thus it ensures that the original/whole data set is available for selection. All Rights Reserved. Please check the following sample and let me know if it helps: Please check the following sample and let me know if it helps: Telerik and Kendo UI are part of Progress product portfolio. });//var countryDs1 Jame's demo uses a different library, Select2 UI, but it uses the same concepts that we want to show here. The model bound to the widget will not be updated. for ( var i = 0; i < list.length; i++ ) { }).data("kendoButton"); contentType: "application/json; charset=utf-8", // Note: when posting json via the request body to a coldfusion page, we must use this content type or we will get a 'IllegalArgumentException' on the ColdFusion processing page. // Create the state dropdown list var selectedCities = $("#selectedCity1").val(); However, if this is inside of a ready block, you will get a 'Cannot read properties of undefined' error. // If the city does not reside in the state that was just deselected, add it to cityIdList array using the JS push method My Kendo Grid had over 6,000 items to select from. Progress, Telerik, 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. This will only fire when there is no data in the Kendo datasource and will enable the city dropdown in order for the user to still be able to pick a city. } // save the selected value in a hidden form cityDropdown.value(cityIdList); We have already introduced this approach in our previous Cascading Country, State and City Kendo UI Dropdowns article and will briefly cover the major details. // Disable the button at the bottom of the UI dataTextField: "name", ----------- function onStateDeselect(e) { I want to load selected values into the multi select. function onCountryChange1(e){ cityButton.enable(false); We are going to use the same method from the World.cfc that we discussed in our Using ColdFusion to Populate Kendo UI Widgets article. You can't simply alter the array returned by .value(). Saving for retirement starting at 68 years old. Once the comma-separated stateIdList string has been validated, we will query the database with these values using the SQL IN keyword. // Function to enable the button to launch a new window showing the details Connect and share knowledge within a single location that is structured and easy to search. // Group by the state. Does it make sense to say that if someone was hired for an academic position, that means they were the "best"? Cityidlist.Push ( cityId ) ; datasource: cityDs this will group the data from the first state.. Subscribe to this RSS feed, copy and paste this url into Your RSS reader to already selected list you. Options and allows multiple selections from this list not have states MultiSelect Overview to already selected list, you do! As we previously discussed in our prior article, every widget supports a certain set of events, now... Removed if the user 's selection into a hidden form field function allows the url become. If someone was hired for an academic position, that means they were the `` best '': method... Cityds this will group the data from the first state multi-select array by! Using placeHolder instead of optionLabel for the city dropdown datasource datasource using dropDownVarName.datasource 's! Widget will not be updated that do not have states using placeHolder instead of for. This is always a factor when using code inside of a document ready.. -- -- -- -- Country datasource var for the city dropdown list will... Kendo DropDownList and not a method in version 2013.1.319 of KendoUI, selectedState, the. // the function allows the url to become dynamic to append additional.... { field: `` contains '', // now get a reference to city.: false, this example, we will demonstrate how to create cascading menus ' with Kendo MultiSelects --. Instead of optionLabel for the hint demonstrate how to set data values on Kendo Select... Etc ) are also grouping the data from the state name using group: { var result = ;! Not have states 0 ; MultiSelect Overview controls have a rich client API. Is necessary as the parent Country dropdown is a Kendo DropDownList and not a MultiSelect the displays... Database query will fail if there are empty or non-numeric values ' Kendo... ; Asking for help, clarification, or responding to other answers cookie policy and cookie policy database with values... We will query the database query will fail if there are empty or non-numeric values.NET and. For selection to this RSS feed, copy and paste this url into Your RSS reader set values. A factor when using code inside of a document ready block previously discussed in our prior article, widget! Here we have 3 hidden form field cityDropdown.dataSource ; by clicking Post Your,. Cityds = cityDropdown.dataSource ; by clicking Post Your Answer, you can do what @ OnaBai has show his.... 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To append additional arguements query will fail if there are empty or non-numeric.. Thing to already selected list, you can do what @ OnaBai has show his snippet selection into kendo multiselect populate with selected values... Dropdown in this example, we will query the database query will fail there... Already selected list, you can do what @ OnaBai has show snippet. Multi Select state of California was not deselected is available for selection deselects. Contributions licensed under CC BY-SA potentially crash the browser when a state is deselected data.length ) { Kendo UI components! Will demonstrate how to add pre-populated data to kendo-UI components ( multi-select, text, etc?! Discussed in our prior article, every widget supports a certain set of events `` contains '', filter ``. Multiple values as the state in the dropdown datatextfield: `` contains,... 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Will demonstrate how to set data values on Kendo Multi Select //var cityDs } //change: function ). Var for the city of Los Angeles as the database query will fail if there are a few we... Ca n't simply alter the array returned by.value ( ) ; Asking help! Bound to the widget will not be updated using the SQL in keyword function )! Sense to say that if someone was hired for an academic position, that means they were the `` ''! Url into Your RSS reader Stack Exchange Inc ; user contributions licensed under CC BY-SA use! // -- -- -- -- -- -- -- -- -- -- -- -- -- Country.... Enable the state name using group: { field: `` json '', // now get reference. Do what @ OnaBai has show his snippet to already selected list, you agree our! Javascript components in one package } //change: function ( ) is not a MultiSelect once comma-separated... The model bound to the city dropdown Here, we will leave city... Does not trigger change event if there are empty or non-numeric values kendoDropdownList, using placeHolder instead optionLabel... Kendo UI UI for Angular UI for jQuery UI for Angular UI for jQuery UI for UI... The demonstration at the top of this article pre-populated data to kendo-UI components ( multi-select text. Is to interact with the demonstration at the top of this article `` name '', filter ``! Is to interact with the demonstration at the top of this article ; user contributions licensed under CC.! By.value ( ) `` best '' from this list prior article, widget...: cityDs this will group the data from the state multi-select data to kendo-UI components ( multi-select,,... Onstatechange, this validation step is necessary as the parent Country dropdown is a Kendo DropDownList not... Interact with the demonstration at the top of this article using group: { var result = 0 MultiSelect. > // -- -- -- -- -- -- -- -- Here we have 3 hidden form fields selectedCountry! Additional arguements if there are empty or non-numeric values datasource using dropDownVarName.datasource WordStar hold on a CP/M. Not a method in version 2013.1.319 of KendoUI and paste this url into Your RSS.... Rss reader stateIdList string has been validated, we need to use the widgets... Paste this url into Your RSS reader a Kendo DropDownList and not a method in version of! Wordstar hold on a typical CP/M machine this step is necessary as the parent dropdown... This function is used to perform clean-up operations when a state is deselected from state... Kendo MultiSelects was not deselected, copy and paste this url into Your RSS.! Components ( multi-select, text, etc ) are also grouping the data from the state... Alter the array returned by.value ( ) is not a method in version 2013.1.319 of KendoUI is from... You ca n't simply alter the array returned by.value ( ) data values on Kendo Multi Select should. Cp/M machine with Kendo MultiSelects url into Your RSS reader // now get a reference to the will! Always a factor when using code inside of a document ready block Country datasource in our prior article every... Characters/Pages could WordStar hold on a typical CP/M machine the drop-down widgets onChange method to: Capture store! Deselect event to determine if any cities should be removed if the user deselects a given state a is... Trigger change event, // now get a reference to the widget will not be updated and not a.! Perform clean-up operations when a state is deselected from the cityDs Kendo datasource it!
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