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Change datasource dynamically in Blazor DataGrid component

08 Apr 2021 / 2 minutes to read

You can change the DataSource of the datagrid component dynamically through an external button.

This is demonstrated in the below sample code where the DataSource is dynamically modified using the bounded property,

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@using Syncfusion.Blazor.Grids
@using Syncfusion.Blazor.Buttons

<SfButton OnClick="Change">Change data source dynamically</SfButton>

<SfGrid DataSource="@Orders" AllowPaging="true">
    <GridPageSettings PageSize="8"></GridPageSettings>
        <GridColumn Field=@nameof(Order.OrderID) HeaderText="Order ID" TextAlign="TextAlign.Right" Width="120"></GridColumn>
        <GridColumn Field=@nameof(Order.CustomerID) HeaderText="Customer Name" Width="150"></GridColumn>
        <GridColumn Field=@nameof(Order.OrderDate) HeaderText=" Order Date" Format="d" Type=ColumnType.Date TextAlign="TextAlign.Right" Width="130"></GridColumn>
        <GridColumn Field=@nameof(Order.Freight) HeaderText="Freight" Format="C2" TextAlign="TextAlign.Right" Width="120"></GridColumn>

    public List<Order> Orders { get; set; }

    protected override void OnInitialized()
        Orders = Enumerable.Range(1, 75).Select(x => new Order()
            OrderID = 1000 + x,
            CustomerID = (new string[] { "ALFKI", "ANANTR", "ANTON", "BLONP", "BOLID" })[new Random().Next(5)],
            Freight = 2.1 * x,
            OrderDate = DateTime.Now.AddDays(-x),
    public void Change()
        // Data source is modified dynamically
        this.Orders = Enumerable.Range(1, 45).Select(x => new Order()
            OrderID = 100 + x,
            CustomerID = (new string[] { "CHOPS", "HANAR", "SUPRD", "TOMSP", "VINET" })[new Random().Next(5)],
            Freight = 1.1 * x,
            OrderDate = DateTime.Now.AddDays(-x),
    public class Order
        public int? OrderID { get; set; }
        public string CustomerID { get; set; }
        public DateTime? OrderDate { get; set; }
        public double? Freight { get; set; }

The following GIF represents DataGrid data source modified dynamically on button click, `Update datasource dynamically`