Page is flickering on changing EditContext

[uma075]

Hi, In blazor application. On one page I have grid and edit form. I have bind that form with EditContext. Everything is woring great. The only concern is when I am clicking the grid row and updating the context, the edit form is flickering. Here is sample code.
you can think these anchor tags as grid rows.

<a id="Button1" @onclick="B1Click">Grid Row 1</a>
   <a id="Button2" @onclick="B2Click">Grid Row 2</a>
        <div style="width:100%;margin:20px;">
<EditForm EditContext="@editContext">
                <DataAnnotationsValidator />
                <SfTab CssClass="default-tab">
                    <TabItems>
                        <TabItem>
                            <ChildContent>
                                <TabHeader Text="Member Information"></TabHeader>
                            </ChildContent>
                            <ContentTemplate>
                                <div class="form-group">
                                    <SfTooltip OffsetX="tipx" OffsetY="tipy">
                                        <SfTextBox Placeholder="Test Property" ID="Test1" FloatLabelType='@FloatLabelType.Always' @bind-Value="model.TestProperty" CssClass="@cssClass" Blur="TestPropertyBlurEvent" Width="250px"></SfTextBox>
                                        <TooltipTemplates>
                                            <Content>
                                                <ValidationMessage For="@(() => model.TestProperty)"></ValidationMessage>
                                            </Content>
                                        </TooltipTemplates>
                                    </SfTooltip>

                                    <SfTooltip OffsetX="tipx" OffsetY="tipy">

                                        <SfTextBox Placeholder="Test Property1" ID="Test2" FloatLabelType='@FloatLabelType.Always' @bind-Value="model.TestProperty1" CssClass="@cssClass" Blur="TestPropertyBlurEvent"></SfTextBox>
                                        <TooltipTemplates>
                                            <Content>
                                                <ValidationMessage For="@(() => model.TestProperty1)"></ValidationMessage>
                                            </Content>
                                        </TooltipTemplates>
                                    </SfTooltip>
                                </div>
                                <SfButton IsPrimary="true" HtmlAttributes="@(new Dictionary<string, object> { { "type", "submit" } })">Save</SfButton>
                            </ContentTemplate>
                        </TabItem>
                        <TabItem>
                            <ChildContent>
                                <TabHeader Text="Options"></TabHeader>
                            </ChildContent>
                            <ContentTemplate>
                                TabItem2
                            </ContentTemplate>
                        </TabItem>
                    </TabItems>
                </SfTab>
            </EditForm>
        </div>
    </div>

`@code{

SfTooltip tooltipObj;
SfTooltip tooltipObj2;

private Test model;
private EditContext editContext;
private string temp { get; set; }
private double tipx { get; set; }
private double tipy { get; set; }
private string cssClass { get; set; }


protected override void OnInitialized()
{
    model = new Test();
    editContext = new EditContext(model);
    tipx = -99999;
    tipy = -99999;
}

protected void B1Click()
{
    model = new Test() { TestProperty = "Hello" };
    editContext = new EditContext(model);
}

protected void B2Click()
{
    model = new Test() { TestProperty = "Hello Test" };
    editContext = new EditContext(model);

}

public class Test
{
    [Required]
    public string TestProperty { get; set; }

    [Required]
    public string TestProperty1 { get; set; }
}

public void TestPropertyBlurEvent(FocusOutEventArgs args)
{
    if (!editContext.Validate())
    {
        //tooltipObj.Open();
        cssClass = "e-error";
        tipx = default(double);
        tipy = default(double);
    }
    else
    {
        //tooltipObj.Close();
        cssClass = "e-success";
        tipx = -99999;
        tipy = -99999;
    }
}

}
`

Everywhere I seen the example bind with model not with editcontext, can anybody please help to stop this flickering. If I am removing this code editContext = new EditContext(model); then its working fine but then I am not able to see the validation messages.
Attaching the sample application.
BlazorApp3 (2).zip