Show Not Operator in Blazor QueryBuilder Component

17 Dec 20221 minute to read

The QueryBuilder provides Not operator along with AND, OR operators to filter records based on more than one condition. You can enable this feature by setting the EnableNotCondition property to true.


By default EnableNotCondition set as false.

@using Syncfusion.Blazor.QueryBuilder

<SfQueryBuilder TValue="@EmployeeDetails" EnableNotCondition="true">
    <QueryBuilderRule Condition="or" Not="false" Rules="@Rules"></QueryBuilderRule>
        <QueryBuilderColumn Field="EmployeeID" Label="Employee ID" Type="ColumnType.Number"></QueryBuilderColumn>
        <QueryBuilderColumn Field="FirstName" Label="First Name" Type="ColumnType.String"></QueryBuilderColumn>
        <QueryBuilderColumn Field="HireDate" Label="Hire Date" Type="ColumnType.Date"></QueryBuilderColumn>
        <QueryBuilderColumn Field="Country" Label="Country" Type="ColumnType.String"></QueryBuilderColumn>

@code {
    List<RuleModel> Rules = new List<RuleModel>()
        new RuleModel { Field="EmployeeID", Label="EmployeeID", Type="Number", Operator="notequal", Value = 1001 },
        new RuleModel { Condition = "and", Not=true, Rules = new List<RuleModel>(){ new RuleModel() { Field = "FirstName", Label = "First Name", Type = "String", Operator = "contains", Value = "mark" } }}

    public class EmployeeDetails
        public string FirstName { get; set; }
        public int EmployeeID { get; set; }
        public string Country { get; set; }
        public string City { get; set; }
        public DateTime HireDate { get; set; }

Displaying Not Operator in Blazor QueryBuilder