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Create custom toolbar with drop-down list in Blazor DataGrid component

You can create your own ToolBar items in the DataGrid. It can be added by defining the Toolbar. Actions for this ToolBar template items are defined in the [ToolbarClick]

Step 1:

Initialize the template for your custom component. Using the following code add the DropDownList component to the ToolBar.

<SfToolbar>
        <ToolbarItems>
            <ToolbarItem Type="ItemType.Input">
                <Template>
                    <SfDropDownList TValue="string" TItem="Select" DataSource=@LocalData Width="200">
                        <DropDownListFieldSettings Text="text" Value="text"> </DropDownListFieldSettings>
                        <DropDownListEvents TValue="string" ValueChange="OnChange"> </DropDownListEvents>
                    </SfDropDownList>
                </Template>
            </ToolbarItem>
        </ToolbarItems>
    </SfToolbar>

Step 2:

To render the DropDownList component, use the DropDownListEvents You can select the datagrid row index based on the selected data in the DropDownList. The output will appear as follows.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Grids
@using Syncfusion.Blazor.Navigations
@using Syncfusion.Blazor.DropDowns


<SfGrid DataSource="@Orders" AllowPaging="true" Height="200" @ref="Grid">
    <GridEvents TValue="Order"></GridEvents>
    <SfToolbar>
        <ToolbarItems>
            <ToolbarItem Type="ItemType.Input">
                <Template>
                    <SfDropDownList TValue="string" TItem="Select" DataSource=@LocalData Width="200">
                        <DropDownListFieldSettings Text="text" Value="text"> </DropDownListFieldSettings>
                        <DropDownListEvents TValue="string" ValueChange="OnChange"> </DropDownListEvents>
                    </SfDropDownList>
                </Template>
            </ToolbarItem>
        </ToolbarItems>
    </SfToolbar>

    <GridColumns>
        <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>
    </GridColumns>
</SfGrid>

@code{

    SfGrid<Order> Grid;
    public List<Order> Orders { get; set; }
    public class Select
    {
        public string text { get; set; }
    }
     List<Select> LocalData = new List<Select>
    {
            new Select() { text = "0"},
            new Select() { text = "1"},
            new Select() { text = "2"},
            new Select() { text = "3"},
            new Select() { text = "4"},
            new Select() { text = "5"},
            new Select() { text = "6"},
            new Select() { text = "7"},
            new Select() { text = "8"},
            new Select() { text = "9"},
    };
    protected override void OnInitialized()
    {
        Orders = Enumerable.Range(1, 10).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),
        }).ToList();
    }
    public void OnChange(Syncfusion.Blazor.DropDowns.ChangeEventArgs<string> args)
    {
        this.Grid.SelectRow(int.Parse(args.Value));
    }

    public class Order
    {
        public int? OrderID { get; set; }
        public string CustomerID { get; set; }
        public DateTime? OrderDate { get; set; }
        public double? Freight { get; set; }
    }
}

Output be like the below. `Final output`