Remove an item from DropDownList
12 Apr 20225 minutes to read
<div class="control-wrapper">
<div id="default" style='padding-top:75px;'>
<ejs-dropdownlist id="games" dataSource="@ViewBag.data" placeholder="Select a game" index="2" popupHeight="220px">
<e-dropdownlist-fields value="Game"></e-dropdownlist-fields>
</ejs-dropdownlist>
</div>
</div>
<ejs-button id="first" content="Remove 0th item"></ejs-button>
<script>
document.getElementById('first').onclick = () => {
// create DropDownList object
let obj = document.getElementById('games');
if (obj.ej2_instances[0].list) {
// Remove the selected value if 0th index selected
var dropObject = document.getElementById("games");
var dropDownListObject = dropObject.ej2_instances[0];
if (dropDownListObject.index === 0) {
dropDownListObject.value = null;
dropDownListObject.dataBind();
}
// remove first item in list
(obj.ej2_instances[0].list.querySelectorAll('li')[0]).remove();
if (!obj.ej2_instances[0].list.querySelectorAll('li')[0]) {
dropDownListObject.dataSource = [];
// enable the nodata template when no data source is empty.
obj.ej2_instances[0].list.classList.add('e-nodata');
}
}
else {
// remove first item in list
dropDownListObject.dataSource.splice(0, 1);
}
};
</script>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace WebApplication1.Models
{
public class GameList
{
public string Id { get; set; }
public string Game { get; set; }
public List<GameList> GameLists()
{
List<GameList> game = new List<GameList>();
game.Add(new GameList { Id = "Game1", Game = "American Football" });
game.Add(new GameList { Id = "Game2", Game = "Badminton" });
game.Add(new GameList { Id = "Game3", Game = "Basketball" });
game.Add(new GameList { Id = "Game3", Game = "Basketball" });
game.Add(new GameList { Id = "Game4", Game = "Cricket" });
game.Add(new GameList { Id = "Game5", Game = "Football" });
game.Add(new GameList { Id = "Game6", Game = "Golf" });
game.Add(new GameList { Id = "Game7", Game = "Hockey" });
game.Add(new GameList { Id = "Game8", Game = "Rugby" });
game.Add(new GameList { Id = "Game9", Game = "Snooker" });
game.Add(new GameList { Id = "Game10", Game = "Tennis" });
return game;
}
}
}