Filtering
17 Feb 202211 minutes to read
Query Builder allows you to create or delete conditions and groups. You can use ShowButtons to enable/disable these buttons.
@Html.EJS().QueryBuilder("querybuilder").Width("72%").Columns(col =>
{
col.Field("EmployeeID").Label("Employee ID").Type("number").Add();
col.Field("FirstName").Label("First Name").Type("string").Add();
col.Field("TitleOfCourtesy").Label("Title Of Courtesy").Type("boolean").Values(new List<string> { "Mr.", "Mrs." }).Add();
col.Field("Title").Label("Title").Type("string").Add();
col.Field("HireDate").Label("Hire Date").Type("date").Format("dd/MM/yyyy").Add();
col.Field("Country").Label("Country").Type("string").Add();
col.Field("City").Label("City").Type("string").Add();
}).Rule(ViewBag.rule).ShowButtons(new Syncfusion.EJ2.QueryBuilder.QueryBuilderShowButtons { GroupDelete = true, GroupInsert = true, RuleDelete = true }).Render()
@Html.EJS().Button("addgroup").CssClass("e-primary").Content("Add Group").Render()
@Html.EJS().Button("addrule").CssClass("e-primary").Content("Add Rule").Render()
@Html.EJS().Button("deletegroup").CssClass("e-primary").Content("Delete Group").Render()
<script>
document.getElementById('addgroup').onclick = function () {
var querybuilderObj = ej.base.getInstance(document.getElementById("querybuilder"), ej.querybuilder.QueryBuilder);
querybuilderObj.addGroups([{ 'condition': 'and', 'rules': [{ 'label': 'First Name', 'field': 'FirstName', 'type': 'string', 'operator': 'startswith', 'value': 'v' }] }], 'group0');
}
document.getElementById('addrule').onclick = function () {
var querybuilderObj = ej.base.getInstance(document.getElementById("querybuilder"), ej.querybuilder.QueryBuilder);
querybuilderObj.addRules([{ 'label': 'City', 'field': 'City', 'type': 'string', 'operator': 'equal', 'value': 'US' }], 'group0');
}
document.getElementById('deletegroup').onclick = function () {
var querybuilderObj = ej.base.getInstance(document.getElementById("querybuilder"), ej.querybuilder.QueryBuilder);
querybuilderObj.deleteGroups(['group0']);
}
</script>public ActionResult Index()
{
QueryBuilderRule rule = new QueryBuilderRule()
{
Condition = "and",
Rules = new List<QueryBuilderRule>()
{
new QueryBuilderRule { Label="Employee ID", Field="EmployeeID", Type="number", Operator="equal", Value = 1 },
new QueryBuilderRule { Label="Title", Field="Title", Type="string", Operator="equal", Value = "Sales Manager" }
}
};
ViewBag.rule = rule;
ViewBag.dataSource = EmployeeView.GetAllRecords();
return View();
}
public class EmployeeView
{
public EmployeeView()
{
}
public EmployeeView(int EmployeeID, string FirstName, string LastName, string Title, DateTime BirthDate, DateTime HireDate, int ReportsTo, string Address, string PostalCode, string Phone, string City, string Country)
{
this.EmployeeID = EmployeeID;
this.FirstName = FirstName;
this.LastName = LastName;
this.Title = Title;
this.BirthDate = BirthDate;
this.HireDate = HireDate;
this.ReportsTo = ReportsTo;
this.Address = Address;
this.PostalCode = PostalCode;
this.Phone = Phone;
this.City = City;
this.Country = Country;
}
public int EmployeeID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Title { get; set; }
public DateTime BirthDate { get; set; }
public DateTime HireDate { get; set; }
public int ReportsTo { get; set; }
public string Address { get; set; }
public string PostalCode { get; set; }
public string Phone { get; set; }
public string City { get; set; }
public string Country { get; set; }
public static List<EmployeeView> GetAllRecords()
{
List<EmployeeView> Emp = new List<EmployeeView>();
Emp.Add(new EmployeeView(1, "Nancy", "Davolio", "Sales Representative", new DateTime(1948, 12, 08), new DateTime(1992, 05, 01), 2, "507 - 20th Ave. E.Apt. 2A ", " 98122", "(206) 555-9857 ", "Seattle ", "USA"));
Emp.Add(new EmployeeView(2, "Andrew", "Fuller", "Vice President, Sales", new DateTime(1952, 02, 19), new DateTime(1992, 08, 14), 4, "908 W. Capital Way", "98401 ", "(206) 555-9482 ", "Kirkland ", "USA"));
Emp.Add(new EmployeeView(3, "Janet", "Leverling", "Sales Representative", new DateTime(1963, 08, 30), new DateTime(1992, 04, 01), 3, " 4110 Old Redmond Rd.", "98052 ", "(206) 555-8122", "Redmond ", "USA "));
Emp.Add(new EmployeeView(4, "Margaret", "Peacock", "Sales Representative", new DateTime(1937, 09, 19), new DateTime(1993, 05, 03), 6, "14 Garrett Hill ", "SW1 8JR ", "(71) 555-4848 ", "London ", "UK "));
Emp.Add(new EmployeeView(5, "Steven", "Buchanan", "Sales Manager", new DateTime(1955, 03, 04), new DateTime(1993, 10, 17), 8, "Coventry HouseMiner Rd. ", "EC2 7JR ", " (206) 555-8122", "Tacoma ", " USA"));
Emp.Add(new EmployeeView(6, "Michael", "Suyama", "Sales Representative", new DateTime(1963, 07, 02), new DateTime(1993, 10, 17), 2, " 7 Houndstooth Rd.", " WG2 7LT", "(71) 555-4444 ", "London ", "UK "));
Emp.Add(new EmployeeView(7, "Robert", "King", "Sales Representative", new DateTime(1960, 05, 29), new DateTime(1994, 01, 02), 7, "Edgeham HollowWinchester Way ", "RG1 9SP ", "(71) 555-5598 ", "London ", " UK"));
Emp.Add(new EmployeeView(8, "Laura", "Callahan", "Inside Sales Coordinator", new DateTime(1958, 01, 09), new DateTime(1994, 03, 05), 9, "722 Moss Bay Blvd. ", "98033 ", " (206) 555-3412", "Seattle ", "USA "));
Emp.Add(new EmployeeView(9, "Anne", "Dodsworth", "Sales Representative", new DateTime(1966, 01, 27), new DateTime(1994, 11, 15), 5, "4726 - 11th Ave. N.E. ", "98105 ", "(71) 555-5598 ", " London", "UK "));
return Emp;
}
}You can create or delete conditions by interacting through the user interface and methods.
- Use the
addRulesanddeleteRulesmethods to create/delete conditions. - Use the
addGroupsanddeleteGroupsmethods to create/delete groups.