ValueChanged example does not work

[Bob]

I am following the example for the ValueChanged event with setting an initial value and it does not work.

I get the error that ValueExpression is required.  I try putting that in, but now when I click on the numeric textbox, 

Below is the code in your documentation for the example

from the handler: @result
<br />
from model: @theTbValue
<br />

<TelerikNumericTextBox Value="@theTbValue" ValueChanged="@( (decimal v) => MyValueChangeHandler(v) )"></TelerikNumericTextBox>

@code {
    string result;

    decimal theTbValue { get; set; } = 1.2345m;

    private void MyValueChangeHandler(decimal theUserInput)
    {
        result = string.Format("The user entered: {0}", theUserInput);

        //you have to update the model manually because handling the ValueChanged event does not let you use @bind-Value
        theTbValue = theUserInput;
    }
}

[Marin Bratanov]

Hello Bob,

I just tried this on a new project with 2.17.0 and it works fine for me. The error about a value expression being required is something that comes from the framework and happens when you nest the component in forms, and you can read more about it here: https://docs.telerik.com/blazor-ui/knowledge-base/requires-valueexpression

 

Regards,
Marin Bratanov
Progress Telerik

[Bob]

Got it, I am in an EditForm.  

Thanks for the info.

Also, thanks for all the quick responses to my questions.