What strategies can be implemented to optimize the performance of a dropdown tree in Syncfusion forms, particularly when dealing with relatively large datasets (e.g., more than 20K entries), which currently load slowly and display as a list?
We are using the dropdown in the data grid component of the syncfusion as
<SfGrid @ref="grid" DataSource="@data" AllowPaging="true" AllowFiltering="true" Toolbar="@(new List<string>() { "Edit", "Update", "Cancel" })">
<GridFilterSettings Type="Syncfusion.Blazor.Grids.FilterType.Excel"></GridFilterSettings>
<GridEvents OnActionBegin="OnActionBegin" OnActionComplete="OnComplete" OnCellSave="OnCellSave" TValue="ExpandoObject"></GridEvents>
<GridEditSettings AllowEditing="true" AllowDeleting="false" AllowAdding="false" Mode="@EditMode.Normal"></GridEditSettings>
<GridColumns>
@foreach (var column in columns)
{
@if (column.Equals("asset_name"))
{
<GridColumn Field="@column" HeaderText="@column" AllowEditing="true" EditType="EditType.DropDownEdit" Visible="true">
<EditTemplate>
<Syncfusion.Blazor.Navigations.SfDropDownTree TValue="string" TItem="treejson" Placeholder="Select an Asset" Width="500px" @bind-Value="@SelectedNode" AllowFiltering="true" FilterType="Syncfusion.Blazor.DropDowns.FilterType.Contains" LoadOnDemand="true">
<Syncfusion.Blazor.Navigations.DropDownTreeField TItem="treejson" ID="id" DataSource="@Assets" Text="name" Child="children" Expanded="expanded"></Syncfusion.Blazor.Navigations.DropDownTreeField>
</Syncfusion.Blazor.Navigations.SfDropDownTree>
</EditTemplate>
</GridColumn>
}@if (column.Equals("asset_name") || column.Contains("id"))
{
<GridColumn Field="@column" HeaderText="@column" AllowEditing="false" EditType="EditType.DropDownEdit" Visible="false">
</GridColumn>
}
else
{
<GridColumn Field="@column" HeaderText="@column" AllowEditing="true" Visible="true">
</GridColumn>
}
}
</GridColumns>