Class QueryBuilderColumns

Serves as a container for defining a collection of QueryBuilderColumn components in the Syncfusion.Blazor.QueryBuilder.

Inheritance

System.Object

QueryBuilderColumns

Namespace: Syncfusion.Blazor.QueryBuilder

Assembly: Syncfusion.Blazor.dll

Syntax

public class QueryBuilderColumns : OwningComponentBase

Remarks

The QueryBuilderColumns component is used to declaratively specify the columns available for creating rules in the Query Builder. Each child QueryBuilderColumn defines the properties of a single column.

Examples

The following example demonstrates how to define columns for the Syncfusion.Blazor.QueryBuilder.

<SfQueryBuilder TValue="EmployeeDetails">
    <QueryBuilderColumns>
        <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" Format="dd/MM/yyyy"></QueryBuilderColumn>
    </QueryBuilderColumns>
</SfQueryBuilder>

@code {
    public class EmployeeDetails
    {
        public int EmployeeID { get; set; }
        public string FirstName { get; set; }
        public System.DateTime HireDate { get; set; }
    }
}

Constructors

QueryBuilderColumns()

Declaration

public QueryBuilderColumns()

Properties

ChildContent

Gets or sets the content to be rendered inside the QueryBuilderColumns component.

Declaration

public RenderFragment ChildContent { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.RenderFragment	A Microsoft.AspNetCore.Components.RenderFragment that typically contains one or more QueryBuilderColumn components. The default value is null.

Remarks

This property allows you to define the set of columns available in the Syncfusion.Blazor.QueryBuilder by adding QueryBuilderColumn instances as child elements.

Methods

BuildRenderTree(RenderTreeBuilder)

Declaration

protected override void BuildRenderTree(RenderTreeBuilder __builder)

Parameters

Type	Name	Description
Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder	__builder

Dispose(Boolean)

Releases the unmanaged resources used by the QueryBuilderColumns component and optionally releases the managed resources.

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	true to release both managed and unmanaged resources; false to release only unmanaged resources.

OnInitializedAsync()

Method invoked when the component is ready to start, having received its initial parameters from its parent in the render tree.

Declaration

protected override Task OnInitializedAsync()

Returns

Type	Description
System.Threading.Tasks.Task	A System.Threading.Tasks.Task representing the asynchronous operation.