Data Grid for Blazor - How to refresh DxDataGrid after changing its data source

Hello support,

I am using the Data Grid control in my Blazor application. I have implemented async functions for RowRemoving, RowUpdating and RowInserting. The functions work and the data is updated. However, after the RowRemoving and RowInserting functions finish and the data source is updated the grid does not reflect the insert or deletion.

Here is my data grid:

HTML
<DxDataGrid Id="DxGrid1" Data="@objDs"
                PageSize="20"
                RowRemoving="@((dataItem) => OnRowRemoving(dataItem))"
                RowUpdating="@((updatingDataItem, newValues) => OnRowUpdating(updatingDataItem, newValues))"
                RowInserting="@((newValues) => OnRowInserting(newValues))" >
        <DxDataGridCommandColumn Width="150px"></DxDataGridCommandColumn>
        <DxDataGridColumn Field="@nameof(objAM.Origcity)" Caption="Orig. City" TextAlignment="@DataGridTextAlign.Right"></DxDataGridColumn>
        <DxDataGridComboBoxColumn Field="@nameof(objAM.Origstate)" Caption="Summary" Data="@summaries"></DxDataGridComboBoxColumn>
        <DxDataGridColumn Field="@nameof(objAM.Destcity)" Caption="Dest City" TextAlignment="@DataGridTextAlign.Right"></DxDataGridColumn>
        <DxDataGridComboBoxColumn Field="@nameof(objAM.Deststate)" Caption="Dest State" Data="@summaries"></DxDataGridComboBoxColumn>

<DxDataGridColumn Field="@nameof(objAM.Rtmiles)" Caption="Miles" TextAlignment="@DataGridTextAlign.Right"></DxDataGridColumn>
    </DxDataGrid>

Here is my code with functions for RowRemoving and RowInserting:

C#
@functions {

//Begin Code

public TAIContext _db = new TAIContext();

public Anamiles objAM;

IEnumerable<Anamiles> objDs;

public int DeleteId;

public string NewValue;

public string name;

bool success;

string[] summaries = new string[] { "  ", "AJ", "AL", "AK", "AB", "AZ", "AR", "BC", "CA", "CO", "CT", "DE", "DC", "DU", "FL", "FU", "GA", "HI", "ID", "IL", "IN", "INTL", "IA", "KS", "KY", "LA", "ME", "MB", "MD", "MA", "DF", "MI", "MN", "MS", "MO", "MT", "NE", "NV", "NB", "NH", "NJ", "NM", "NY", "NF", "NC", "ND", "NT", "NS", "OH", "OK", "ON", "OR", "PA", "PE", "PR", "QC", "RA", "RI", "SK", "SH", "SC", "SD", "TN", "TX", "UM", "UT", "VT", "VA", "WA", "WV", "WI", "WY", "YT" };

protected override async Task OnInitializedAsync()
    {

objAM = _db.Anamiles.FirstOrDefault();
        objDs = await _db.Anamiles.ToListAsync();

name = await sessionStorage.GetItemAsync<string>("name");

}

async void OnRowRemoving(Anamiles dataItem)
    {
        _db.Anamiles.Remove(dataItem);
        await _db.SaveChangesAsync();
        objDs = await _db.Anamiles.ToListAsync();
        NewValue = "OnRowRemoving";
        await sessionStorage.SetItemAsync("name", "Record removed");

}

void OnRowUpdating(Anamiles updatingDataItem, Dictionary<string, object> newValues)
    {
        object objOut;
        success = newValues.TryGetValue("Rtmiles", out objOut);
        if (success == true)
        {
            updatingDataItem.Rtmiles = Convert.ToInt32(objOut);
        }

success = newValues.TryGetValue("Origcity", out objOut);
        if (success == true)
        {
            updatingDataItem.Origcity = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Destcity", out objOut);
        if (success == true)
        {
            updatingDataItem.Destcity = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Origstate", out objOut);
        if (success == true)
        {
            updatingDataItem.Origstate = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Deststate", out objOut);
        if (success == true)
        {
            updatingDataItem.Deststate = Convert.ToString(objOut);
        }

_db.Anamiles.Update(updatingDataItem);
        _db.SaveChanges();
        objDs = _db.Anamiles.ToList();
        NewValue = "success";

}

async void OnRowInserting(Dictionary<string, object> newValues)
    {
        Anamiles updatingDataItem = new Anamiles();

object objOut;
        success = newValues.TryGetValue("Rtmiles", out objOut);
        if (success == true)
        {
            updatingDataItem.Rtmiles = Convert.ToInt32(objOut);
        }
        else
        {
            updatingDataItem.Rtmiles = 0;
        }

success = newValues.TryGetValue("Origcity", out objOut);
        if (success == true)
        {
            updatingDataItem.Origcity = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Destcity", out objOut);
        if (success == true)
        {
            updatingDataItem.Destcity = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Origstate", out objOut);
        if (success == true)
        {
            updatingDataItem.Origstate = Convert.ToString(objOut);
        }

success = newValues.TryGetValue("Deststate", out objOut);
        if (success == true)
        {
            updatingDataItem.Deststate = Convert.ToString(objOut);
        }

_db.Anamiles.Add(updatingDataItem);
        await _db.SaveChangesAsync();
        objDs = await _db.Anamiles.ToListAsync<Anamiles>();
        NewValue = "OnRowInserting";
        await sessionStorage.SetItemAsync("name", "Record added");

}

void OnClick()
    {
       // await sessionStorage.SetItemAsync("name", "");
       NavigationManager.NavigateTo(@"\AdminTools");
    }

//End Code
}

Is there something I am missing to tell the Data Grid to refresh from the Data Source ? Also, what are the properties to control the appearance of the buttons inside the data grid? Any suggestions would be greatly appreciated.

Thanks,

Keith Hunt